PECVD Recipes: Difference between revisions

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{{recipes|Vacuum Deposition}}
{{recipes|Vacuum Deposition}}

=[[PECVD 1 (PlasmaTherm 790)]]=
=[[PECVD 1 (PlasmaTherm 790)]]=
==== Historical Particulate Data ====


*[https://docs.google.com/spreadsheets/d/1a0XrY6HuJ6L9niThZYI-u4XH69Hnbe3jkm1qKmrR8Rg/edit#gid=sharing Particulates(Gain4) in PECVD#1-OLD DATA 2015]
===[https://docs.google.com/spreadsheets/d/1fTDNXxpf4tgNYLIEs_jvehG1KvtXqqTRDBI7sHNAVvo/edit#gid=1270764394 PECVD 1 Process Control Plots] - Plots of all process control data===
*[https://docs.google.com/spreadsheets/d/1ZfkspbCQZmdThC8qB4XyjsyPAzrMF1QbHSMFmH6xSo4/edit#gid=sharing Particulates(Gain4) in PECVD#1-OLD DATA 2016]
*[https://docs.google.com/spreadsheets/d/1YNiof68Veeh08s_NtG5aCWUXW7GWDDU00HAimV_l8_g/edit#gid=sharing Particulates(Gain4) in PECVD#1-OLD DATA 2017]
*[https://docs.google.com/spreadsheets/d/1VN551M2oXGWX306HDLQXvZIp3kgxEvWffQqMqnc8ISk/edit#gid=sharing Particulates in PECVD#1 films 2017]
*[https://docs.google.com/spreadsheets/d/11c0gQHnattIjVO95aBqiL-zL4DInRFihV-YB54xLT40/edit#gid=sharing Particulates in PECVD#1 films 2018]
*[https://docs.google.com/spreadsheets/d/1ct-SSCRxf81W0jupCWzh81n0DBwPv6mwKFMzuWu_0TI/edit#gid=sharing Particulates in PECVD#1 films 2019]
*[https://docs.google.com/spreadsheets/d/1yks0OgH8rpbYjin_Qr8vpPg8jBiZQRs_PKfyfo-Rqg0/edit#gid=sharing Particulates in PECVD#1 films 2020]
*[https://docs.google.com/spreadsheets/d/1vSmymaS_NNXW-ouC8Ky1J6iVSla7uyRB2zf1lGMa31g/edit#gid=sharing Particulates in PECVD#1 films 2021]


==SiN deposition (PECVD #1)==
==SiO<sub>2</sub> deposition (PECVD #1)==


*[https://docs.google.com/spreadsheets/d/1DGU745SeunYz4sLs1LpGKbtOYX-tQyBHEvVYcMxHRKE/edit#gid= Si3N4 Standard Recipe]
*[https://docs.google.com/spreadsheets/d/1wloq6HJw5RQIvmeKcBn3xvE_917R6jF_K-btCHjsiIM/edit#gid= SiO<sub>2</sub><nowiki> [PECVD 1] Standard Recipe</nowiki>]
==== Historical Data ====


*[https://docs.google.com/spreadsheets/d/1fTDNXxpf4tgNYLIEs_jvehG1KvtXqqTRDBI7sHNAVvo/edit#gid=0 SiO<sub>2</sub><nowiki> [PECVD 1] Current Process Control Data</nowiki>]
===== Thin-Film Properties =====
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiO2_deposition_.28PECVD_.231.29 SiO<sub>2</sub><nowiki> [PECVD 1] Historical Data</nowiki>] - Oct. 2021 and earlier


==SiN deposition (PECVD #1)==
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dEN6LV93LXlnbUhIWU1adVZWMWlXYnc&usp=drive_web#gid=sharing SiN 100nm Data 2014]
*[https://docs.google.com/spreadsheets/d/1phx1WficlUEg0xSahaAq4zrRk6m9Eb0ausO8wcAmXqs/edit#gid=sharing SiN 100nm Data 2015]
*[https://docs.google.com/spreadsheets/d/1VNSNTqnbE4SFk0HyhBAy3GJzi0jRQEs8cgk1v2_Uam8/edit#gid=sharing SiN 100nm Data 2016]
*[https://docs.google.com/spreadsheets/d/1TG1X2wpl2fWaHEtAHtpZFBVSCk1BQeGJQ8LA2M2qBJ0/edit#gid=sharing SiN 100nm Data 2017]
*[https://docs.google.com/spreadsheets/d/1UlyvPcXUBQ5R2JwjKOjELvtCJaTElVhJHfzgjyaRd2A/edit#gid=sharing SiN 300nm Data 2017]
*[https://docs.google.com/spreadsheets/d/1pAoTCaNSf0uZMyiQ2qKFd0s_e4e53P9Z1jUwtmTnlLk/edit#gid=sharing SiN 300nm Data 2018]
*[https://docs.google.com/spreadsheets/d/1Pnw8eEaQ0rGblRYl6LeIm6wrh1hgeyjnHEbA4BzV8JM/edit#gid=sharing SiN 300nm Data 2019]
*[https://docs.google.com/spreadsheets/d/1N_1Kk6J-wA4nlHpFg5EMDZNHR1kLDo_fr_Dvc6osSr4/edit#gid=sharing SiN 300nm Data 2020]
*[https://docs.google.com/spreadsheets/d/13jY5T_PW1a3GjHIbR0GuUbIhmxClQfvLgzaUtl3YniE/edit#gid=sharing SiN 300nm Data 2021]


*[https://docs.google.com/spreadsheets/d/1DGU745SeunYz4sLs1LpGKbtOYX-tQyBHEvVYcMxHRKE/edit#gid= Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 1] Standard Recipe</nowiki>]
===== Uniformity Data =====
*[https://docs.google.com/spreadsheets/d/1fTDNXxpf4tgNYLIEs_jvehG1KvtXqqTRDBI7sHNAVvo/edit#gid=98787450 Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 1] Current Process Control Data</nowiki>]
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiN_deposition_.28PECVD_.231.29 Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 1] Historical Data</nowiki>] - Oct. 2021 and earlier


==Low Stress Si<sub>3</sub>N<sub>4</sub> (PECVD#1)==
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dElmTXZyOEZsOFdrMVhNLWpKXzVmNWc&usp=sharing SiN 100 nm Thickness uniformity 2014]
*[https://docs.google.com/spreadsheets/d/1-pET1Eojooso5UHk90W-5uYByDDdrCyRnggqewxTmVg/edit#gid=sharing SiN 100 nm Thickness uniformity 2015]
*[https://docs.google.com/spreadsheets/d/1V_-KzsdR-2tSnJGtUdQWokmnNIY949t0vdQOp7RfCgc/edit#gid=sharing SiN 100 nm Thickness uniformity 2016]
*[https://docs.google.com/spreadsheets/d/1tM-a4VBEqpxr2G8PGGLTbsR6BQBmvqXNRBw0mikAUS0/edit#gid=sharing SiN 100 nm Thickness uniformity 2017]
*[https://docs.google.com/spreadsheets/d/1Z83RCH5cAUfViO6vv6hAatcLVWZ95ex4nDdfffm9I7s/edit#gid=sharing SiN 300nm Thickness uniformity 2017]
*[https://docs.google.com/spreadsheets/d/1b4EQZdRtVbqNwGBrItoG5-tz6RIzlsvBiCFR6ZXfylw/edit#gid=sharing SiN 300nm Thickness uniformity 2018]
*[https://docs.google.com/spreadsheets/d/1-OiaH8frAzJzHKfbYTJP808ddzk1Wsv_CixDzG-sSfo/edit#gid=sharing SiN 300nm Thickness uniformity 2019]
*[https://docs.google.com/spreadsheets/d/1e5ycwODa-VooEzGjhY4XquvJpuAuIQHHHZSRwZaH5-E/edit#gid=sharing SiN 300nm Thickness uniformity 2020]
*[https://docs.google.com/spreadsheets/d/1Re5xwB5WMgsgDHsi_0dUeL62uWAnqDQtoBoaR7lj8cI/edit#gid=sharing SiN 300nm Thickness uniformity 2021]


*[https://wiki.nanotech.ucsb.edu/wiki/images/4/4a/New_PECVD1-LS_SIN-Turner05recipe_2014_LS_SIN_recipe.pdf Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 1] Standard Recipe</nowiki>]
==SiO<sub>2</sub> deposition (PECVD #1)==
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#Low-Stress_SiN_-_LS-SiN_.28PECVD.231.29 Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 1] Historical Data</nowiki>] - 2021-10 and earlier
*[https://docs.google.com/spreadsheets/d/1uqpg3sirsRbXdTFlxZ6_k3t0ovP0MtpFtICjpH0-prs/edit#gid= SiO2 Standard Recipe]


:[[File:PECVD1 SiN Stress vs. N2 plot.jpg|alt=plot of SiN stress and Refractive Index vs. N2 flow. |none|thumb|414x414px|Example of Si<sub>3</sub>N<sub>4</sub> modified stress via. varying N<sub>2</sub> flow.  Refractive index is relatively constant (one outlier), and stress varies continuously from tensile to compressive.  ([[Demis D. John]] 2011, [https://engineering.ucsb.edu/people/daniel-blumenthal Blumenthal Group])]]
==== Historical Data ====


==SiO<sub>x</sub>N<sub>y</sub> deposition (PECVD #1)==
===== Thin-Film Properties =====


*[https://wiki.nanotech.ucsb.edu/wiki/images/2/24/New_PECVD1-LS_SION-recipe_2014_LS_SION_recipe.pdf SiO<sub>x</sub>N<sub>y</sub> Standard Recipe]
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dEw0bjFEdTF2SUhRa25Ca0d0SzBha3c&usp=drive_web#gid=sharing SiO<sub>2</sub> 100nm Data 2014]
*[https://docs.google.com/spreadsheets/d/1JWNUcH8l90xif-0BhYKJee9nXxE4hnvvp6N2NtZLYXY/edit#gid=sharing SiO<sub>2</sub> 100nm Data 2015]
*[https://docs.google.com/spreadsheets/d/1rixyzAAq6q08M5OwvZiDVoh3K8B566XKM-UZAQIAnsg/edit#gid=sharing SiO<sub>x</sub>N<sub>y</sub> Data 2014] - ''Rate, Index etc.''
*[https://docs.google.com/spreadsheets/d/1F2pfsVnbUgaE9tsm8HZMlY6cyt-nhui0IpvGc6udhDU/edit#gid=sharing SiO<sub>2</sub> 100nm Data 2016]
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dEttR2JSTkRoamR0SUZ4bE5QUW9uS2c&usp=sharing SiO<sub>x</sub>N<sub>y</sub>1000A Thickness uniformity 2014]
*[https://docs.google.com/spreadsheets/d/1MblK5Zr5Skfw0s9Hdhqr_cCwN-nCgM-ofZnsAyvVRq8/edit#gid=sharing SiO<sub>2</sub> 100nm Data 2017]
*[https://docs.google.com/spreadsheets/d/15SocIqWQvBKSvT5oCWoZAURLaaqb9KosxCN2rueZQN8/edit#gid=sharing SiO<sub>2</sub> 300nm Data 2017]
*[https://docs.google.com/spreadsheets/d/1DdjIRGsfJ7WCrxQoGpmzkjLGJhpBTFNYLFmmHcNjAjk/edit#gid=sharing SiO<sub>2</sub> 300nm Data 2018]
*[https://docs.google.com/spreadsheets/d/1QbhukSuVNueT067IVEpweSlD4B7GQecf-tfQFQeV6Xs/edit#gid=sharing SiO<sub>2</sub> 300nm Data 2019]
*[https://docs.google.com/spreadsheets/d/1OwyhfFPDH-XLPczA8cKoBPnujq9oNukaWkHq0KoFS40/edit#gid=sharing SiO<sub>2</sub> 300nm Data 2020]
*[https://docs.google.com/spreadsheets/d/1I-0Ih_F9pWeOwXeEQC6IFYKNB6bBLSoBiyX8Eu3pwFg/edit#gid=sharing SiO<sub>2</sub> 300nm Data 2021]


==Standard Cleaning Procedure (PECVD #1)==
===== Thick-Film Properties =====
The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:
*[https://docs.google.com/spreadsheets/d/1XgUlCaCv3jCK9RyrI553PkIS0PmiAlbWjsDwK5TOH3I/edit#gid=sharing SiO<sub>2</sub> Thick film Data 2021]


#Wet cleaning (start cleaning by using a cleanroom wipe sprayed with DI. Wipe chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA. )
==== Uniformity Data ====
#Load the recipe for cleaning "CF4/O2 Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding a required time for cleaning.
#


{| class="wikitable"
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dDQ3VEtZQVRpdVdlbGtIZHpTNmFzNmc&usp=drive_web#gid=sharing SiO<sub>2</sub> 100nm Thickness uniformity 2014]
|+Table of Cleaning Times
*[https://docs.google.com/spreadsheets/d/1NQy-ADou6f2NBU-9jZG8KME1lOz0X5mh6HZV9_jPGes/edit#gid=sharing SiO<sub>2</sub> 100 nm Thickness uniformity 2015]
!Film Dep'd
*[https://docs.google.com/spreadsheets/d/1WUCm_dWpxKTjfFf1rNfLuxvwMxsyCYON_OZ3gb50L_s/edit#gid=sharing SiO<sub>2</sub> 100 nmThickness uniformity 2016]
!Cleaning Time
*[https://docs.google.com/spreadsheets/d/1dpC_AkPD-etIH6fVuQqLfd4UMNQCEtcqhvmBpwbEncE/edit#gid=sharing SiO<sub>2</sub> 100nm Thickness uniformity 2017]
|-
*[https://docs.google.com/spreadsheets/d/1Fa8mZIBIeJwvCwUbJ-28VcvVYj8rshhuDuXsYxA-cD8/edit#gid=sharing SiO<sub>2</sub> 300nm Thickness uniformity 2017]
|SiO<sub>2</sub>
*[https://docs.google.com/spreadsheets/d/1YB_9USpuXGpIdSW2gNsptu5nSrLWAGsYu0SWoYEy0aQ/edit#gid=sharing SiO<sub>2</sub> 300nm Thickness uniformity 2018]
|TBD
*[https://docs.google.com/spreadsheets/d/1FatUAEegWuDRzVa47L1_cqgRs0AZ_Fao9jpwz5sfln0/edit#gid=sharing SiO<sub>2</sub> 300nm Thickness uniformity 2019]
|-
*[https://docs.google.com/spreadsheets/d/1uAIEv_z2TJtY2XxTYnDIyKwKT4ZIhalTCyZ5SrDRJmA/edit#gid=sharing SiO<sub>2</sub> 300nm Thickness uniformity 2020]
|Si<sub>3</sub>N<sub>4</sub>
*[https://docs.google.com/spreadsheets/d/1jThamYtEiH3lVz4IzoG9ILxBG8-TufIKnUd8V0qKQU0/edit#gid=sharing SiO<sub>2</sub> 300nm Thickness uniformity 2021]
|TBD
|-
|SiOxNy
|Same as XYZ
|}


#
== Low-Stress SiN - LS-SiN (PECVD#1) ==


*[//wiki.nanotech.ucsb.edu/wiki/images/4/4a/New_PECVD1-LS_SIN-Turner05recipe_2014_LS_SIN_recipe.pdf LS SiN Standard Recipe]
===[https://wiki.nanotech.ucsb.edu/w/images/7/72/PECVD1-cleaning.png Standard Cleaning Recipe (PECVD#1): "CF4/O2 Clean"]===
Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that '''it will pop up a window for the cleaning time''' upon running the recipe - you do not need to edit the recipe before running it.
*[https://docs.google.com/spreadsheets/d/1Joz0az9TGZWQc4CiMQJZzLBbNFbx_hH2Oc0B4NNJmYk/edit#gid=sharing LS SiN Data 2014]
*[https://docs.google.com/spreadsheets/d/1xIzc2CufRYNSfAtsOXpw3IzHreeu42BWrLBV0kzP6kA/edit#gid=sharing LS SiN 1000A Thickness uniformity 2014]


=[[PECVD 2 (Advanced Vacuum)]]=
== SiO<sub>x</sub>N<sub>y</sub> deposition (PECVD #1) ==


===[https://docs.google.com/spreadsheets/d/1iSW1eAAg824y9PYYLG9aiaw53PEJ-f9ofylpVlCDq9Y/edit#gid=272916741 PECVD 2 Process Control Plots] - Plots of all process control data===
*[//wiki.nanotech.ucsb.edu/wiki/images/2/24/New_PECVD1-LS_SION-recipe_2014_LS_SION_recipe.pdf SiO<sub>x</sub>N<sub>y</sub> Standard Recipe]
*[https://docs.google.com/spreadsheets/d/1rixyzAAq6q08M5OwvZiDVoh3K8B566XKM-UZAQIAnsg/edit#gid=sharing SiO<sub>x</sub>N<sub>y</sub> Data 2014]
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dEttR2JSTkRoamR0SUZ4bE5QUW9uS2c&usp=sharing SiO<sub>x</sub>N<sub>y</sub>1000A Thickness uniformity 2014]


== Cleaning Recipes (PECVD #1) ==
==SiO<sub>2</sub> deposition (PECVD #2)==
The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:
# Wet cleaning (start cleaning by using a cleanroom wipe sprayed with DI. Wipe chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA. )
# Load the recipe for cleaning "CF4/O2 Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding a required time for cleaning.


*[https://docs.google.com/spreadsheets/d/1cYK-k669vf8YO2q2YCGa3gTdaDI3I3M-a9KR5RDlZWY/edit#gid= SiO<sub>2</sub><nowiki> [PECVD 2] New Standard Recipe</nowiki>] - "''STD SiO2 v2''"
=== [//wiki.nanotech.ucsb.edu/w/images/7/72/PECVD1-cleaning.png Standard Cleaning Recipe: "CF4/O2 Clean"] ===
*[https://docs.google.com/spreadsheets/d/1wCEcFj6ZMHR4QifngLXwz6dqbyf8hsVKu7bQbMS6EoA/edit#gid= SiO<sub>2</sub><nowiki> [PECVD 2] Old Standard Recipe</nowiki>] - "''STD SiO2''"
Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that it will '''pop up a window for the cleaning time upon running the recipe''' - you do not need to edit the recipe before running it.
*[https://docs.google.com/spreadsheets/d/1iSW1eAAg824y9PYYLG9aiaw53PEJ-f9ofylpVlCDq9Y/edit#gid=1313651154 SiO<sub>2</sub><nowiki> [PECVD 2] Current Process Control Data</nowiki>]
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiO2_deposition_.28PECVD_.232.29 SiO<sub>2</sub><nowiki> [PECVD 2] Historical Data</nowiki>] - Before Oct. 2021


==SiN deposition (PECVD #2)==
=[[PECVD 2 (Advanced Vacuum)]]=


*[https://docs.google.com/spreadsheets/d/1JBXEfRGemFJK81RkHfxS0cTucb3viUL7hMGzmKRD5uU/edit#gid= Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] New Standard Recipe</nowiki>] - "''STD Si3N4 v3''"
==== Historical Particulate Data ====
*[https://docs.google.com/spreadsheets/d/1KS4HfhUJyYVep4H6CRAKpMRP5TA31F0qD-obQkKRnEI/edit#gid= Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Old Standard Recipe</nowiki>] - "''Nitride2''"
*[https://docs.google.com/spreadsheets/d/1iSW1eAAg824y9PYYLG9aiaw53PEJ-f9ofylpVlCDq9Y/edit#gid=773875841 Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Current Process Control Data</nowiki>]
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiN_deposition_.28PECVD_.232.29 Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Historical Data</nowiki>] - Before Oct. 2021


==Low-Stress SiN deposition (PECVD #2)==
*[https://docs.google.com/spreadsheets/d/1kj0SWxRpnPRoGld8k3sW-3yK1iPm3buTkvlJSN5YPV4/edit#gid=sharing Particulates (Gain4) in PECVD#2 2015]
''Low-Stress Silicon Nitride, Si<sub>3</sub>N<sub>4</sub> (< ±100 MPa)''
*[https://docs.google.com/spreadsheets/d/1xpk9tJrE68NIJ_1yIym0xBxd4fnzHHBHdkhFehruO3E/edit#gid=sharing Particulates (Gain4) in PECVD#2 2016]
*[https://docs.google.com/spreadsheets/d/1ICgt-fgTvNPbE_65x5jUsqy8JjHVv5WUvmE7g7VUbsI/edit#gid=sharing Particulates (Gain4) in PECVD#2 2017]


*[https://docs.google.com/spreadsheets/d/1yPAPP24z3RcRRi-HqEp3GJN4JM8Ec8SFJwZ-OYGG2HU/edit#gid=sharing Particulates in PECVD#2 films 2017]
*[https://docs.google.com/spreadsheets/d/19VQ6ytYbZ5SsAiXzgWqwlyJUqgjWb8x_eyv7L8DvtwM/edit#gid= Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] New Standard Recipe</nowiki>] - "''STD LS-Si3N4 v4''"
*[https://docs.google.com/spreadsheets/d/1aU6fTyQ5MlGD4uCa9gepG5rLJzW3wlkOWSKEl_w_Ye4/edit#gid=sharing Particulates in PECVD#2 films 2018]
*[https://docs.google.com/spreadsheets/d/1OPZXe8g3H0wywIrPFel3nSZ5iyPs2mVIYUSVKfTtMDg/edit#gid=sharing Particulates in PECVD#2 films 2019]
*[https://docs.google.com/spreadsheets/d/1Y9lomsf7bDojeXoAsEG7xvypx_sw_atpmPwB9xtK1Zk/edit#gid=sharing Particulates in PECVD#2 films 2020]


*[https://docs.google.com/spreadsheets/d/1DzzI7aE61R7c6gyk6cGBdm9FtGrApiNJ4AL90ll2C8k/edit#gid= Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Old Standard Recipe</nowiki>] - "'' Old LSNitride2 recipe ''"
==SiO<sub>2</sub> deposition (PECVD #2)==


*[https://docs.google.com/spreadsheets/d/1iSW1eAAg824y9PYYLG9aiaw53PEJ-f9ofylpVlCDq9Y/edit#gid=584923738 Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Current Process Control Data</nowiki>]
==== Standard Recipe ====
*[https://docs.google.com/spreadsheets/d/1iSW1eAAg824y9PYYLG9aiaw53PEJ-f9ofylpVlCDq9Y/edit#gid=203400760 Plots of Low-Stress Si<sub>3</sub>N<sub>4</sub> Process Control Data]
*[[Old Deposition Data - 2021-12-15#Low-Stress SiN deposition .28PECVD .232.29|Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [PECVD 2] Historical Data - Before Oct. 2021</nowiki>]]
*:''Old Versions of the recipe:''
*:''[https://wiki.nanotech.ucsb.edu/wiki/images/a/a5/New_AdvPECVD-LS_Nitride2_300C_standard_recipe_LS_Nitride2_standard_recipe.pdf LS Nitride2 Standard Recipe 2014-5/9/2018]''
*:''[https://wiki.nanotech.ucsb.edu/wiki/images/0/01/STD_LSNitride2_5-9-18.pdf STD LSNitride2 5/9/2018]''


===Low-Stress SiN 3xTime (PECVD #2)===
''This Low-Stress SiN recipe is more stable over time (months), because each step is 3x longer (so each compressive/tensile layer is thicker), making it less susceptible to RF ignition delays as the grounding strap is etched over time. – 2024-09 [[Demis D. John|Demis]] & [[Biljana Stamenic|Biljana]]''


*[https://docs.google.com/spreadsheets/d/1wCEcFj6ZMHR4QifngLXwz6dqbyf8hsVKu7bQbMS6EoA/edit#gid= STD SiO2 Recipe]
*Recipe: "''[https://docs.google.com/spreadsheets/d/1OQp_sux5YEgpcyH3sf0JCwTOhvoi_LSYKOUMRR4Umh4?usp=drive_fs STD LS-Si3N4 3xTime v1]"''
*[https://docs.google.com/spreadsheets/d/15aKkk-fIojIDgQfsVlB3lhex-U3Q0edVdNCkzoGBo1Q/edit?usp=sharing Process Control Data]: Calibration Data
*[https://docs.google.com/spreadsheets/d/15aKkk-fIojIDgQfsVlB3lhex-U3Q0edVdNCkzoGBo1Q/edit?gid=974005628#gid=974005628 Process Control Charts/Plots]: Calibration control limits versus date


==Amorphous-Si deposition (PECVD #2)==
==== Historical Data ====


*[https://wiki.nanotech.ucsb.edu/wiki/images/9/9d/03-Amorphous-Si-PECVD-2.pdf Amorphous Si Deposition Recipe]
===== Thin-Film Properties =====
*[https://wiki.nanotech.ucsb.edu/wiki/images/0/09/ASi_deposition_and_film_stress_using_AV_dep_tool.pdf Amorphous Si Film Characterization and Stress]


==Standard Cleaning Procedure (PECVD #2)==
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dGJZaGtDTVRqa1BRdW5iU1N1Y01jd0E&usp=drive_web#gid=sharing Oxide Data 2014]
The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:
*[https://docs.google.com/spreadsheets/d/1d5boeJRWWgMqvQe6nVM7m8s3KAcS4Yp2L5CEU9svkX4/edit#gid=sharing Oxide Data 2015]
*[https://docs.google.com/spreadsheets/d/1XQRcTJdw9AIMPAUsH0n9Ic9Fe1_xGDSvAxD4gVc9FBw/edit#gid=sharing Oxide data 2016]
*[https://docs.google.com/spreadsheets/d/1vcaHwraMGNHuRxgWwGp78EJf4T3Jk182wxoCz_neuck/edit#gid=sharing Oxide Data 2017]
*[https://docs.google.com/spreadsheets/d/1VI-sUmaqois0NsCvf2kQmPfRRa03MjBzl779hmmLtP4/edit#gid=sharing Oxide Data 2018]
*[https://docs.google.com/spreadsheets/d/1oWnQ3D6oknKWU2bohvSrN85rlEZgQN3YP_ZJ4i8u7do/edit#gid=sharing Oxide Data 2019]
*[https://docs.google.com/spreadsheets/d/1Z9UMgaQC2PiLLrMk04mpKWkJLa1L_WFMAm5079eKxI0/edit#gid=sharing Oxide Data 2020]
*[https://docs.google.com/spreadsheets/d/10XA3WnHjUZOLFunwUIlM2IqaRIiX_EGb6Jj_bw84gkI/edit#gid=sharing Oxide Data 2021]


#(If >29min dep time) Wet cleaning: Start cleaning by using a cleanroom wipe sprayed with DI. Wipe upper chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA & wiping again.
===== Uniformity Data =====
#Load the recipe for cleaning "STD CF<sub>4</sub>/O<sub>2</sub> Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding required time for cleaning.


===[https://wiki.nanotech.ucsb.edu/w/images/3/34/PECVD2_photo_for_cleaning.png Standard Clean Recipe (PECVD#2): "STD CF4/O2 Clean"]===
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dDRjSHEtYUZRUTg4azE2U0JGUTg2M1E#gid=sharing Oxide Thickness Uniformity 2014]
Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that it will pop up a window for the cleaning time upon running the recipe - you do not need to edit the recipe before running it.
*[https://docs.google.com/spreadsheets/d/16pZHcGwesXB1mMPwntOudBIlPvRh6A6DI37DEwyYfPw/edit#gid=sharing Oxide Thickness Uniformity 2015]
*[https://docs.google.com/spreadsheets/d/10OEuANVNmHqWvx-92zibechIrHK5kgqSK4B_O_O3-YI/edit#gid=sharing Oxide Thickness Uniformity 2016]
*[https://docs.google.com/spreadsheets/d/19JjJYdFNFzO685Hp9hODVRFAYF5bP3IEYGTRGQjqLN4/edit#gid=sharing Oxide Thickness Uniformity 2017]
*[https://docs.google.com/spreadsheets/d/1064j6894X63WlRX3Uolxg1q1FRzUZLqSZQA9BWwzPOk/edit#gid=sharing Oxide Thickness Uniformity 2018]
*[https://docs.google.com/spreadsheets/d/1064j6894X63WlRX3Uolxg1q1FRzUZLqSZQA9BWwzPOk/edit#gid=sharing Oxide Thickness Uniformity 2019]
*[https://docs.google.com/spreadsheets/d/1Z9UMgaQC2PiLLrMk04mpKWkJLa1L_WFMAm5079eKxI0/edit#gid=sharing Oxide Thickness Uniformity 2020]
*[https://docs.google.com/spreadsheets/d/1b9Fmzp_d-XiMerFtrDiCsmS7NMNoaBtS8T0DLqoii8Y/edit#gid=sharing Oxide Thickness Uniformity 2021]


==SiN deposition (PECVD #2)==


'''Clean Times (PECVD#2''')
==== Standard Recipe ====
{| class="wikitable"
!Film Deposited
!Cleaning Time (Dry)
|-
|SiO<sub>2</sub>
|1 min. clean for every 1 min. deposition
|-
|Si<sub>3</sub>N<sub>4</sub>
|1 min. clean for every 7 min of deposition
|-
|If > 29min total dep time
(Season + Dep)
|Wet Clean the Upper Lid/Chamber
DI water then Isopropyl Alcohol on chamber wall & portholes
|}


=[[ICP-PECVD (Unaxis VLR)]]=
*[//wiki.nanotech.ucsb.edu/wiki/images/4/4c/SiNx_Films_by_PECVD2.pdf SiNx Film Stress vs LF and HF Duration Time, and Gas Flowing-rate]
2020-02: New recipes have been characterized for low particulate count and repeatability. Only staff-supplied recipes are allowed in the tool. Please follow the [[ICP-PECVD (Unaxis VLR)#Documentation|new procedures]] to ensure low particle counts in the chamber.
*[https://docs.google.com/spreadsheets/d/1KS4HfhUJyYVep4H6CRAKpMRP5TA31F0qD-obQkKRnEI/edit#gid= STD Nitride2 Recipe]


The system currently has '''Deuterated Silane (SiD<sub>4</sub>)''' installed - identical to the regular Silicon precursor SiH<sub>4</sub>, except that it significantly lowers optical absorption in the near-infrared due to shifted molecular vibrations/molecular weights. This gas is more expensive and thus more applicable to optical application than to general-purpose SiN films.
==== Historical Data ====


==Process Control Data (Unaxis ICP-PECVD)==
===== Thin-Film Properties =====


*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=417334948https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=417334948 ICP-PECVD Process Control Plots] - ''Plots of all Process Control data''
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dDE0R3FlenNPa2txNmRldTczMXZNNnc#gid=sharing Nitride2 Data 2014]
*[https://docs.google.com/spreadsheets/d/1SkYqOwgjUyMaFBPhuTjMvBTXu0KdQFNmITryF_OVi8o/edit#gid=sharing Nitride2 Data 2015]
*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=0 Low Deposition Rate SiO<sub>2</sub>]
*[https://docs.google.com/spreadsheets/d/1HJszgZyEZR9ZsiJpQM6pdsoQ6pWwI6brXasdmfDRoBQ/edit#gid=sharing Nitride2 Data 2016]
*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1459210138 High Deposition Rate SiO<sub>2</sub>]
*[https://docs.google.com/spreadsheets/d/1f3JBEnr7lf0yIMlzlOYKv_bXlIDyXt8vec_rSVJIoOk/edit#gid=sharing Nitride2 Data 2017]
*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1670372499 Si<sub>3</sub>N<sub>4</sub>]
*[https://docs.google.com/spreadsheets/d/1OO0ewGSqYSzL3lj8fXkgckTkBGQRliD6sBc02IW7wZY/edit#gid=sharing Nitride2 Data 2018]
*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1517031044 Low Stress Si<sub>3</sub>N<sub>4</sub>]
*[https://docs.google.com/spreadsheets/d/1Zi8CRspd3LTDdNRRCneE0--bVohWvZbV_kSHo04s0oI/edit#gid=sharing Nitride2 Data 2019]
*[https://docs.google.com/spreadsheets/d/1LEutQynQXU_9B4EqRt21PX9TGR13IqaMge7sKAXKAfg/edit#gid=sharing Nitride2 Data 2020]
*[https://docs.google.com/spreadsheets/d/1piGMPEHXiUV5WMNfaTFKdL1pnE8W2yrWHkNWHd7Au1A/edit#gid=sharing Nitride2 Data 2021]


==Low Deposition Rate SiO<sub>2</sub> [ICP-PECVD]==
===== Uniformity Data =====


*[https://docs.google.com/spreadsheets/d/17ft9jrHcCFCp2830RsLwQq5lHuupWATXT91SreG8WYY/edit#gid=143856038 Low Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiO2 LDR250C-until May 2024''"
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dERkYm85bGtYQVpjVk5GTGJuMkg2anc&usp=drive_web#gid=sharing Nitride2 Thickness Uniformity 2014]
*[https://docs.google.com/spreadsheets/d/14_dYQu3z31fF_oxsUUX8BmDucgv6B07xB3_zqP0HmvM/edit#gid=sharing Nitride2 Thickness Uniformity 2015]
*[https://docs.google.com/spreadsheets/d/1mobnAIH70a9eFbCkMnza2WfpI2uRUWtLlz0cLK1Ljuo/edit?gid=1554182668#gid=1554182668 Low Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiO2 LDR250C-after May 2024''"
*[https://docs.google.com/spreadsheets/d/1qBHs7uALM2OdE-yXOq4uZk6aUQEjZRjG1C6RcMEf0sk/edit#gid=sharing Nitride2 Thickness Uniformity 2016]
*[https://docs.google.com/spreadsheets/d/1WJcYzHUjLrWpys_i-Q96FN_lBDBufpXZKZVEX_gri_Q/edit#gid=sharing Nitride2 Thickness Uniformity 2017]
*[https://docs.google.com/spreadsheets/d/1hzj4Fb5fN8lS0m9-rm9AgEn0Zunif5grI4X7YkAMEFU/edit#gid=sharing Nitride2 Thickness Uniformity 2018]
*[https://docs.google.com/spreadsheets/d/1hzj4Fb5fN8lS0m9-rm9AgEn0Zunif5grI4X7YkAMEFU/edit#gid=sharing Nitride2 Thickness Uniformity 2019]
*[https://docs.google.com/spreadsheets/d/1xdzjLODpe2Xb7r4PGil1q-OFqSYKuZBivqLt1T6lezw/edit#gid=sharing Nitride2 Thickness Uniformity 2020]
*[https://docs.google.com/spreadsheets/d/19x70-CIyQ41pywpL-IusldLv7XYJps9aJT5-rYYQSCs/edit#gid=sharing Nitride2 Thickness Uniformity 2021]


**[https://docs.google.com/spreadsheets/d/1wocoCPOOEDQcZbXJJNaZs1sr9dXBZpn1wUyglL8IQrI/edit#gid=1199123007 Old Recipe] -
==Low-Stress SiN deposition (PECVD #2)==
''Low-Stress SilIcon Nitride (< 100 MPa)''


*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=0 Low Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Process Control Data</nowiki>]
==== Standard Recipe ====
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiO2_LDR_250C_Deposition_.28Unaxis_VLR.29 Low Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Historical Data</nowiki>] - before Oct. 2021


==High Deposition Rate SiO<sub>2</sub> [ICP-PECVD]==
*[https://docs.google.com/spreadsheets/d/1DzzI7aE61R7c6gyk6cGBdm9FtGrApiNJ4AL90ll2C8k/edit#gid= STD LS Nitride2 Recipe]
*''Old Versions:''
**[//wiki.nanotech.ucsb.edu/wiki/images/a/a5/New_AdvPECVD-LS_Nitride2_300C_standard_recipe_LS_Nitride2_standard_recipe.pdf LS Nitride2 Standard Recipe 2014-5/9/2018]
**[//wiki.nanotech.ucsb.edu/wiki/images/0/01/STD_LSNitride2_5-9-18.pdf STD LSNitride2 5/9/2018]


*[https://docs.google.com/spreadsheets/d/13KUlUujEWSLOH54Ibd52YNJPZcAc7ELShI2RAqM6H-Y/edit#gid=117484667 High Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiO2 HDR250C-until May 2024''"
==== Historical Data ====
*[https://docs.google.com/spreadsheets/d/1x0mB4ySSUfEAfRehAx7k_k3BJuTMczaRxQgxsTAFfo4/edit?gid=744785272#gid=744785272 High Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiO2 HDR250C-after May 2024''"


**[https://docs.google.com/spreadsheets/d/1OxHi5r9ifNvF8ODpIk6aoRevb4RdbbykwPVMm1g-yi4/edit#gid=1199123007 Old Recipe]
===== Thin-Film Properties =====


*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1459210138 High Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Current Process Control Data</nowiki>]
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dEZvWVhzS1pHUXZkOGcyQWZ4LTNBWGc&usp=drive_web#gid=sharing LS Nitride2 Data 2014]
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiO2_HDR_250C_Deposition_.28Unaxis_VLR.29 High Deposition Rate SiO<sub>2</sub><nowiki> [ICP-PECVD] - Historical Data</nowiki>]
*[https://docs.google.com/spreadsheets/d/16Q6BrPoNiFP0elVoSGwXRfQdHXzAXOgiyqKmEw-4kII/edit#gid=sharing LS Nitride2 Data 2015]
*[https://docs.google.com/spreadsheets/d/1GZ58eFzD-T8DJ2Nsaj74u6cvawzsOI2DmMit6Z7vqys/edit#gid=sharing LS Nitride2 Data 2016]
*[https://docs.google.com/spreadsheets/d/1gGIWqkCnykPgBc3prhXExT7QcNjWm2HdbTtwugNqm18/edit#gid=sharing LS Nitride2 Data 2017]
*[https://docs.google.com/spreadsheets/d/1vwpDtiglR2DLWiYNhpBX77cyyj9lw55iVeFz1puN7bM/edit#gid=sharing LS Nitride2 Data 2018]
*[https://docs.google.com/spreadsheets/d/1zvSl2P5T926Ol48yH3FBCZm1zCeycl3S8GWQYtzi8VI/edit#gid=sharing LS Nitride2 Data 2019]
*[https://docs.google.com/spreadsheets/d/1muyFsIspqZXB2HXiqG3t39uzeO7A7Srvh4aGdXjwCc4/edit#gid=sharing LS Nitride2 Data 2020]
*[https://docs.google.com/spreadsheets/d/1qzVA44esh71655lE1rrpGkKKNTyZRC_mv3IaiZ_HAWQ/edit#gid=sharing LS Nitride2 Data 2021]


==Gap-Fill SiO<sub>2</sub> [ICP-PECVD]==
===== Uniformity Data =====
''Recipe designed by [https://scholar.google.com/citations?user=kur3-cEAAAAJ&hl=en&oi=ao Warren Jin], please consider our [https://wiki.nanotech.ucsb.edu/wiki/Frequently_Asked_Questions#Publications_acknowledging_the_Nanofab publication policy] if you publish using this recipe.''
'''NOTE:''' Please contact tool [[Tony Bosch|supervisor]] before running this recipe - this recipe must often be scheduled to prevent excessive chamber maintenance.
Able to effectively fill ~1:1 and ~1:2 aspect ratio gaps in Silicon and Glass structures (eg. waveguides/optical gratings) with void-free filling.


The recipe uses a high 400W RF Bias to reduce buildup on corners that causes voids during growth.
*[https://docs.google.com/spreadsheet/ccc?key=0AnwBU1s4JQo2dENSak1ZNnVaVTFEQTBzdDJMSDlDTFE&usp=drive_web#gid=1=sharing LS Nitride2 Thickness Uniformity 2014]
*[https://docs.google.com/spreadsheets/d/1LpkaOpr7oNoyvxFkineD7i9FspO6LweJMulvZHJM5Zc/edit#gid=sharing LS Nitride2 Thickness Uniformity 2015]
*[https://docs.google.com/spreadsheets/d/1FRzW9BaIPF2D3cxPgjLq8hbvrBHXDNkiW6DiPVKQBRM/edit#gid=sharing LS Nitride2 Thickness Uniformity 2016]
*[https://docs.google.com/spreadsheets/d/1vyrgvdEZFgnQUilpa5Ka2nOfowY8zlmJfbQ77EamNBg/edit#gid=sharing LS Nitride2 Thickness Uniformity 2017]
*[https://docs.google.com/spreadsheets/d/17OGrhbvP8O_0mBMIsmUmEwfyFaoJnNNpMFpgBUW7qzI/edit#gid=sharing LS Nitride2 Thickness Uniformity 2018]
*[https://docs.google.com/spreadsheets/d/17OGrhbvP8O_0mBMIsmUmEwfyFaoJnNNpMFpgBUW7qzI/edit#gid=sharing LS Nitride2 Thickness Uniformity 2019]
*[https://docs.google.com/spreadsheets/d/1M4ug8SAqy2Ky70LNLW3pL2MjSs69beJVhbC2BbabHaU/edit#gid=sharing LS Nitride2 Thickness Uniformity 2020]
*[https://docs.google.com/spreadsheets/d/12wvXFHN7CV_XSFj6hB5Gd7SIXERwzkTM__58ZqzPOuk/edit#gid=sharing LS Nitride2 Thickness Uniformity 2021]


*Category = <code>SiO2 GapFill - Std.</code>
==Amorphous-Si deposition (PECVD #2)==
*FLOW: <code>SiO2 GapFill 250C</code>
**Will run the sequence <code>SiO2 GapFill 250C 450W</code>. Do not change this!
*STEP (edit TIME only): <code>SiO2 GapFill 250C</code>
*Deposition rate = 99.968nm/min [9/20/23]


==Si<sub>3</sub>N<sub>4</sub> [ICP-PECVD]==
*[//wiki.nanotech.ucsb.edu/wiki/images/9/9d/03-Amorphous-Si-PECVD-2.pdf Amorphous Si Deposition Recipe]
*[//wiki.nanotech.ucsb.edu/wiki/images/0/09/ASi_deposition_and_film_stress_using_AV_dep_tool.pdf Amorphous Si Films and Their Stress]


*[https://docs.google.com/spreadsheets/d/1MffAE2S-Sga0o4botssPMi_P8C2ghxw4XiHwTnOn95Q/edit#gid=1111781219 Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiN 250C- until May 2024''"
== Cleaning Recipes (PECVD #2) ==
The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:
#Wet cleaning (start cleaning by using a cleanroom wipe sprayed with DI. Wipe chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA. )
#Load the recipe for cleaning "STD CF4/O2 Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding a required time for cleaning.
===[//wiki.nanotech.ucsb.edu/w/images/3/34/PECVD2_photo_for_cleaning.png Standard Clean Recipe: "STD CF4/O2 Clean recipe"] ===
Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that it will '''pop up a window for the cleaning time upon running the recipe''' - you do not need to edit the recipe before running it.


*[https://docs.google.com/spreadsheets/d/18nE-iTLLH4QIq3wadHVgjVuZ215o9xUz_aCX2WDdges/edit?gid=638997025#gid=638997025 Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiN 250C-after May 2024''"
=[[ICP-PECVD (Unaxis VLR)]]=
2020-02: New recipes have been characterized for low particulate count and repeatability. Only staff-supplied recipes are allowed in the tool. Please follow the [[ICP-PECVD (Unaxis VLR)#Documentation|'''new procedures''']] to ensure low particle counts in the chamber.


*[https://docs.google.com/spreadsheets/d/1VrgS0cB2OcdZVTCnDAesgQCLRaAgEB_Iajc_OrhXOo0/edit#gid=1199123007 Old Recipe]
The system currently has '''Deuterated Silane (SiD<sub>4</sub>) installed''' - identical to the regular Silicon precursor SiH<sub>4</sub>, except that it significantly lowers optical absorption in the near-infrared due to shifted molecular vibrations/molecular weights.


*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1670372499 Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Current Process Control Data</nowiki>]
==== Historical Particulate Data ====
*[https://wiki.nanotech.ucsb.edu/wiki/Old_Deposition_Data_-_2021-12-15#SiN_250C_deposition_.28Unaxis_VLR.29 Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Historical Data</nowiki>] - before Oct. 2021
* [https://docs.google.com/spreadsheets/d/1ZzbpDmkOI3IvGuKqyiQIP44sYJ89E3Zs9sLvjxvWMsc/edit#gid=sharing Particulates in Unaxis films @250C-2019]
* [https://docs.google.com/spreadsheets/d/1fMebt-6BfAurcjMv1aDsmm6VgPqokU73_2ReZFqzEEk/edit#gid=sharing Particulates in Unaxis films @250C-2020]


==Low Stress Si<sub>3</sub>N<sub>4</sub> [ICP-PECVD]==
==== Standard Recipes ====
*[https://docs.google.com/spreadsheets/d/1T_4gaJQ3wHSNptoAtFR1fN0ePwfw3PsQ0DLSjqGeyM4/edit#gid=sharing SiO2 LDR 250C Recipe-2020]
*[https://docs.google.com/spreadsheets/d/1nsdGPpfyZfIesyYG1PIU9uYyuzQWrfpsvVWM6J_H6BI/edit#gid=sharing SiO2 HDR 250C Recipe-2020]
*[https://docs.google.com/spreadsheets/d/1UTr93aWx0MjCwVBwRmYjPwo9ASluGQ-OrJhVG_R57aY/edit#gid=sharing SiN 250C Recipe-2020]
*[https://docs.google.com/spreadsheets/d/1MXW7UNpTyk93ucOVQaSun5IX7QaUbSABNHNznb09qw8/edit#gid=sharing SiN LS 250C Recipe-2020]


*[https://docs.google.com/spreadsheets/d/1JuQlCU-mozIUJx9z9aQdisIJyFhv1r9AWI8EWeOnsPo/edit#gid=82816489 Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiN Low Stress 250C-until May 2024''"
==SiO2 LDR 250C Deposition (Unaxis VLR)==
''Low-Deposition Rate SiO<sub>2</sub>''


* [https://docs.google.com/spreadsheets/d/1xchMuXlPABSKcW-rMau8B-cw_jnJnwI9qpXqDLUQ8sU/edit?gid=1239658204#gid=1239658204 Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Standard Recipe</nowiki>] - "''SiN Low Stress 250C-after May 2024''"
==== Historical Data ====
===== Thin-Film Properties =====
This data is for 780sec long SiO2 LDR (low deposition rate) deposition, and cleaning time is 900sec, following the procedure [[here]].
*[https://docs.google.com/spreadsheets/d/1wocoCPOOEDQcZbXJJNaZs1sr9dXBZpn1wUyglL8IQrI/edit#gid=sharing SiO2 LDR 250C 300nm Data-2019]
*[https://docs.google.com/spreadsheets/d/1bU2Gu3x3DNyrq8skMAQZJCsra-IcoDCT0U5D135YPgc/edit#gid=sharing SiO2 LDR 250C 300nm Data-2020]
===== Uniformity Data =====
*[https://docs.google.com/spreadsheets/d/1Xi21OrargcNRthZ2fM_56APB8O599ctDfq5E_6B5Ft0/edit#gid=sharing Thickness Uniformity SiO2 LDR 250C 300nm-2019]
*[https://docs.google.com/spreadsheets/d/1-ytu5R75FAXNfhJZTRuK2eRZyu_L6Hy1BWV2zN6_tRA/edit#gid=sharing Thickness Uniformity SiO2 LDR 250C 300nm-2020]


**[https://docs.google.com/spreadsheets/d/1i2mE2K12EEulnCbO9KuU9PCcvHAmcGxTIXUF8x4IOWk/edit#gid=1199123007 Old Recipe]
==SiO2 HDR 250C Deposition (Unaxis VLR)==
''High-Deposition Rate SiO<sub>2</sub>''


*[https://docs.google.com/spreadsheets/d/1CuDMKFTTzGLL6CP-FEI_9cOnUaIw-432ppDFssB59wY/edit#gid=1517031044 Low Stress Si<sub>3</sub>N<sub>4</sub><nowiki> [ICP-PECVD] - Current Process Control Data</nowiki>]
==== Historical Data ====
===== Thin-Film Properties =====
This data is for 180sec long SiO2 HDR ( high deposition rate) deposition, and cleaning time is 900sec, following the procedure [[here]].
*[https://docs.google.com/spreadsheets/d/16s-tUna9xrkKneK1lE-qSPuUHWlDmP6Qu3IngBXP3R8/edit#gid=sharing SiO2 HDR 250C 300nm Data-2019]
*[https://docs.google.com/spreadsheets/d/1OxHi5r9ifNvF8ODpIk6aoRevb4RdbbykwPVMm1g-yi4/edit#gid=sharing SiO2 HDR 250C 300nm Data-2020]
===== Uniformity Data =====
*[https://docs.google.com/spreadsheets/d/1Mm_rsTm9xDQ50kZx6X6EZ5dTegUvinq0zFxRtE8B2R4/edit#gid=sharing Thickness Uniformity SiO2 HDR 250C 300nm-2019]
*[https://docs.google.com/spreadsheets/d/1nzVeCKsmgL17zft6axQlixpvsEowJOG7qCnLQm_0XxE/edit#gid=sharing Thickness Uniformity SiO2 HDR 250C 300nm-2020]


==Standard Seasoning Procedure [ICP-PECVD]==
== SiN 250C deposition (Unaxis VLR) ==
You must edit the seasoning recipes (SiO2 Seasoning - Std, SiN seasoning - Std). You are allowed to change only seasoning time [time needed to coat chamber walls with ~200nm of film].
==== Historical Data ====
Seasoning recipes:
===== Thin-Film Properties =====
*[https://docs.google.com/spreadsheets/d/1S01xgtxFEJ4q7GLHfo-96yYKxer8nGlB/edit?gid=1944526099#gid=1944526099 SiO<sub>2</sub> seasoning - Std ]
This data is for 480sec long SiN deposition, and cleaning time is 1500sec, following the procedure [[here]].
*[https://docs.google.com/spreadsheets/d/1VrgS0cB2OcdZVTCnDAesgQCLRaAgEB_Iajc_OrhXOo0/edit#gid=sharing SiN 250C 300nm Data-2020]
*[https://docs.google.com/spreadsheets/d/1S3BFJIn9oAq2bxg6PDe9RY_6Fvkc36ki/edit?gid=1218243940#gid=1218243940 SiN seasoning - Std ]
===== Uniformity Data =====
*[https://docs.google.com/spreadsheets/d/1YAx_Ix84xId8CAhDwZeFT7jLFUwg-BET9aBwg3DxUmQ/edit#gid=sharing Thickness Uniformity SiN 250C 300nm-2020]


==Standard Cleaning Procedure [ICP-PECVD]==
== SiN LS 250C Deposition (Unaxis VLR) ==
You must edit the Post-Dep Clean recipe to correspond to your deposited thickness and material. See the [[ICP-PECVD (Unaxis VLR)#Documentation|Operating Procedure on the Unaxis Tool Page]] for details.
''Low Stress Silicon-Nitride''


*SiNx etches at 20nm/min
==== Historical Data ====
*SiO<sub>2</sub> etches at 40nm/min
''To Be Added''


===== Thin-Film Properties =====
===Standard Clean Recipe===
This data is for 180sec long SiN LS (low stress) deposition, and cleaning time is 1500sec, following the procedure [[here]].
*[https://docs.google.com/spreadsheets/d/1i2mE2K12EEulnCbO9KuU9PCcvHAmcGxTIXUF8x4IOWk/edit#gid=sharing SiN LS 250C 300nm Data-2020]
===== Uniformity Data =====
*[https://docs.google.com/spreadsheets/d/1NDyxH1i9COM2XTryLqYPE9yOekgRslAJUO7o56iTOEQ/edit#gid=sharing Thickness Uniformity SiN LS 250C 300nm-2020]


*[https://docs.google.com/spreadsheets/d/1S3DzvJJahNTwGXsn0GDyg2FiourGffiy/edit?gid=2021404224#gid=2021404224 Post Deposition Clean 250C ]
== Cleaning Recipes (Unaxis VLR Dep) ==

You must edit the Post-Dep Clean recipe to correspond to your deposited thickness and material. See the [[ICP-PECVD (Unaxis VLR)#Documentation|Operating Procedure on the Unaxis Tool Page]] for details.
==General Recipe Notes (Unaxis VLR ICP-PECVD)==
* SiNx etches at 20nm/min

* SiO2 etches at 40nm/min
*RF1 = Bias
*RF2 = ICP Power
*All recipes start with an Argon pre-clean with 0W bias (gentle), to improve adhesion/nucleation.
*Maximum SiO<sub>2</sub> Dep. thickness allowed: 800nm
**Above this thickness, you must run a chamber clean/season before depositing more onto your product wafer.

Latest revision as of 21:24, 30 September 2024

Back to Vacuum Deposition Recipes.

PECVD 1 (PlasmaTherm 790)

PECVD 1 Process Control Plots - Plots of all process control data

SiO2 deposition (PECVD #1)

SiN deposition (PECVD #1)

Low Stress Si3N4 (PECVD#1)

plot of SiN stress and Refractive Index vs. N2 flow.
Example of Si3N4 modified stress via. varying N2 flow.  Refractive index is relatively constant (one outlier), and stress varies continuously from tensile to compressive.  (Demis D. John 2011, Blumenthal Group)

SiOxNy deposition (PECVD #1)

Standard Cleaning Procedure (PECVD #1)

The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:

  1. Wet cleaning (start cleaning by using a cleanroom wipe sprayed with DI. Wipe chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA. )
  2. Load the recipe for cleaning "CF4/O2 Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding a required time for cleaning.
Table of Cleaning Times
Film Dep'd Cleaning Time
SiO2 TBD
Si3N4 TBD
SiOxNy Same as XYZ

Standard Cleaning Recipe (PECVD#1): "CF4/O2 Clean"

Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that it will pop up a window for the cleaning time upon running the recipe - you do not need to edit the recipe before running it.

PECVD 2 (Advanced Vacuum)

PECVD 2 Process Control Plots - Plots of all process control data

SiO2 deposition (PECVD #2)

SiN deposition (PECVD #2)

Low-Stress SiN deposition (PECVD #2)

Low-Stress Silicon Nitride, Si3N4 (< ±100 MPa)

Low-Stress SiN 3xTime (PECVD #2)

This Low-Stress SiN recipe is more stable over time (months), because each step is 3x longer (so each compressive/tensile layer is thicker), making it less susceptible to RF ignition delays as the grounding strap is etched over time. – 2024-09 Demis & Biljana

Amorphous-Si deposition (PECVD #2)

Standard Cleaning Procedure (PECVD #2)

The cleaning procedure is very important in order to have consistent result on this tool and also to keep particulate count low. After each deposition you should clean the tool following instructions carefully. The clean is done in two steps:

  1. (If >29min dep time) Wet cleaning: Start cleaning by using a cleanroom wipe sprayed with DI. Wipe upper chamber sidewalls with it. Finish cleaning by using the cleanroom wipe sprayed with IPA & wiping again.
  2. Load the recipe for cleaning "STD CF4/O2 Clean" (edit the recipe and change ONLY time of cleaning). Follow instructions regarding required time for cleaning.

Standard Clean Recipe (PECVD#2): "STD CF4/O2 Clean"

Click the above link for a screenshot of the standard cleaning recipe, for which you will enter a custom time. The recipe is set up so that it will pop up a window for the cleaning time upon running the recipe - you do not need to edit the recipe before running it.


Clean Times (PECVD#2)

Film Deposited Cleaning Time (Dry)
SiO2 1 min. clean for every 1 min. deposition
Si3N4 1 min. clean for every 7 min of deposition
If > 29min total dep time

(Season + Dep)

Wet Clean the Upper Lid/Chamber

DI water then Isopropyl Alcohol on chamber wall & portholes

ICP-PECVD (Unaxis VLR)

2020-02: New recipes have been characterized for low particulate count and repeatability.  Only staff-supplied recipes are allowed in the tool. Please follow the new procedures to ensure low particle counts in the chamber.

The system currently has Deuterated Silane (SiD4) installed - identical to the regular Silicon precursor SiH4, except that it significantly lowers optical absorption in the near-infrared due to shifted molecular vibrations/molecular weights. This gas is more expensive and thus more applicable to optical application than to general-purpose SiN films.

Process Control Data (Unaxis ICP-PECVD)

Low Deposition Rate SiO2 [ICP-PECVD]

High Deposition Rate SiO2 [ICP-PECVD]

Gap-Fill SiO2 [ICP-PECVD]

Recipe designed by Warren Jin, please consider our publication policy if you publish using this recipe. 

NOTE: Please contact tool supervisor before running this recipe - this recipe must often be scheduled to prevent excessive chamber maintenance.

Able to effectively fill ~1:1 and ~1:2 aspect ratio gaps in Silicon and Glass structures (eg. waveguides/optical gratings) with void-free filling.

The recipe uses a high 400W RF Bias to reduce buildup on corners that causes voids during growth.

  • Category = SiO2 GapFill - Std.
  • FLOW: SiO2 GapFill 250C
    • Will run the sequence SiO2 GapFill 250C 450W. Do not change this!
  • STEP (edit TIME only): SiO2 GapFill 250C
  • Deposition rate = 99.968nm/min [9/20/23]

Si3N4 [ICP-PECVD]

Low Stress Si3N4 [ICP-PECVD]

Standard Seasoning Procedure [ICP-PECVD]

You must edit the seasoning recipes (SiO2 Seasoning - Std, SiN seasoning - Std). You are allowed to change only seasoning time [time needed to coat chamber walls with ~200nm of film]. Seasoning recipes:

Standard Cleaning Procedure [ICP-PECVD]

You must edit the Post-Dep Clean recipe to correspond to your deposited thickness and material. See the Operating Procedure on the Unaxis Tool Page for details.

  • SiNx etches at 20nm/min
  • SiO2 etches at 40nm/min

Standard Clean Recipe

General Recipe Notes (Unaxis VLR ICP-PECVD)

  • RF1 = Bias
  • RF2 = ICP Power
  • All recipes start with an Argon pre-clean with 0W bias (gentle), to improve adhesion/nucleation.
  • Maximum SiO2 Dep. thickness allowed: 800nm
    • Above this thickness, you must run a chamber clean/season before depositing more onto your product wafer.
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