Template:Announcements: Difference between revisions
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===== New Raith EBL: tool up ===== |
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It appears that the combination of higher beam currents than usual (we did after all upgrade our EBL capabilities for the purpose of higher throughput at much higher beam currents) and the particular (extremely sparse) stitch patterns we use to measure stitch accuracy revealed a subtle limitation in the Fine Focus coil used in their systems (the Fine Focus coil adjusts focal point on the substrate as the beam is deflected around the 1mm field). |
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After installing our backup spool the system ran for approximately 15 minutes and then failed again due to a leak in the chamber. I took apart the chamber and found a crack on the backup spool. |
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We are working with the tool designers in Eindhoven as well as the service team in the US to “fix” this issue. However, in the meantime, we understand and recognize the problem sufficiently to address it if it comes up in real day-to-day usage. |
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We will be signing off on the tool tomorrow morning at which point the tool will be available for '''general EBL use to our nanofab community'''. I will be working with a few experienced users in the next couple of days and then will be reaching out to a wider audience to get more of you trained. -- Bill Mitchell |
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I spoke to an engineer at PlasmaTherm and he told me this issue was indicative of a failing lamp (or lamps) that was causing a large delta of heat across the ceramic spool. |
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===== SignupMonkey + Wiki: Off-Campus Access===== |
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I requested to have a couple new spools to be overnighted but they most likely won’t ship out until Monday. I tested the lamps and found two that were pretty heavily oxidized on the leads. |
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Due to a DDoS attack affecting the Signupmonkey server, we have restricted access to the website to US locations only, including both the Nanofab Wiki and Signupmonkey. |
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If you are off-campus and experiencing issues, please utilize the UCSB VPN to access our sites. Here are the installation instructions for VPN on your device. You will need your UCSB NetID for download and installation - you would have received a UCSB NetID when you started using the NanoFab: |
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I’ll install all new lamps and the new spool when it gets in next week. |
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https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn |
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//[[User:Mehalana v|Vraj Mehalana]] 13:02, 16 September 2024 (PDT) |
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-- Vraj |
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=====IBD is UP===== |
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Replaced bad PLC controller on Depo beam. I then tested the beam with a 15 min gridclean recipe without issue. |
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I then ran an SiO2 dep, and a 1 hour gridclean without issue. |
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System UP - Mike Barreraz |
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=====Focused Ion Beam (Raith Velion) - TOOL DOWN for Raith Service===== |
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Raith service need to work on the Velion a little longer than anticipated. I'll keep the tool down until 2pm tomorrow (Tuesday). I'll send further updates if anything changes. |
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-Dan |
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//[[User:Mehalana v|Vraj Mehalana]] 10:58, 12 September 2024 (PDT) |
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=====Lab Closure Monday the 16th===== |
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Fire Drill completed. Lab open. |
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// [[User:Mehalana v|Vraj Mehalana]] 10:57, 12 September 2024 (PDT) |
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=====MLA150: UP===== |
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Optical AF has been calibrated and Defocus + Dose values are the same as before. PneuAF has not been checked et, but we expect a shift in PneuAF Defocus due to the Pneumatic nozzle replacement. |
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=====Stepper #3 (ASML DUV) - Down, update===== |
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The alignment laser has now fully failed (no laser output at all), so we can't perform any exposures. |
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ASML engineers will be on site Monday Tues (Sept 16th) to perform the repair. |
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// [[User:John_d|Demis D. John]] 18:14, 11 September 2024 (PDT) |
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=====Suss SB6-8E===== |
=====Suss SB6-8E===== |
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We found a blown resistor (and a questionable op amp) on one of the boards that contains the z-axis motor circuit. However, we still cannot get the tool to initialize. Next we will try swapping out the hard drive again and run some more tests. |
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When the vendor came in to install the new top heater he wasn't able to get the z-axis (elevator motor) to move. He was able to install the new heater and do a PM on the rest of the tool. We are ordering a new z-axis controller on the recommendation of the vendor. If all goes well this should solve the issue and make the bonder fully operational. I'll send out an email once the new controller has been installed. |
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I will send out an update once we have one. |
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-Aidan |
-Aidan |
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//[[User: |
// [[User:John_d|Demis D. John]] 00:35, 8 December 2024 (UTC) |
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=====EBeam#2: Up===== |
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Bell jar mount is in place. Hoist has been tested several times. System is ready to use. |
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// [[User:John_d|Demis D. John]] 18:14, 11 September 2024 (PDT) |
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=====YES EcoClean UP===== |
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The YES has been giving downstream temp warnings for the RF generator. These happen on the 3000W recipes that run for more than 4-5 minutes, and are just warnings (yellow banner/light), and can just be acknowledged without notifying Staff. Our other generator is out for repair, so this will be the norm until we get it back. Please let us know if you do get an error for this; red banner/light. |
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// [[User:John_d|Demis D. John]] 18:14, 11 September 2024 (PDT) |
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=====ICP1 Down===== |
=====ICP1 Down===== |
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The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps. |
The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps. |
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//[[User:Mehalana v|Vraj Mehalana]] 14:17, 1 March 2024 (PST) |
//[[User:Mehalana v|Vraj Mehalana]] 14:17, 1 March 2024 (PST) |
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=====Lab Access Changes: Symmetry App===== |
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The iris scanner has been decommissioned. Please use the card reader which supports: |
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-Physical card |
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-Mobile phone via Symmetry App |
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//[[User:Mehalana v|Vraj Mehalana]] 16:59, 14 June 2024 (PDT) |
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Latest revision as of 16:28, 2 July 2025
New Raith EBL: tool up
It appears that the combination of higher beam currents than usual (we did after all upgrade our EBL capabilities for the purpose of higher throughput at much higher beam currents) and the particular (extremely sparse) stitch patterns we use to measure stitch accuracy revealed a subtle limitation in the Fine Focus coil used in their systems (the Fine Focus coil adjusts focal point on the substrate as the beam is deflected around the 1mm field). We are working with the tool designers in Eindhoven as well as the service team in the US to “fix” this issue. However, in the meantime, we understand and recognize the problem sufficiently to address it if it comes up in real day-to-day usage.
We will be signing off on the tool tomorrow morning at which point the tool will be available for general EBL use to our nanofab community. I will be working with a few experienced users in the next couple of days and then will be reaching out to a wider audience to get more of you trained. -- Bill Mitchell // Demis D. John 16:28, 2 July 2025 (UTC)
SignupMonkey + Wiki: Off-Campus Access
Due to a DDoS attack affecting the Signupmonkey server, we have restricted access to the website to US locations only, including both the Nanofab Wiki and Signupmonkey.
If you are off-campus and experiencing issues, please utilize the UCSB VPN to access our sites. Here are the installation instructions for VPN on your device. You will need your UCSB NetID for download and installation - you would have received a UCSB NetID when you started using the NanoFab:
https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn
-- Vraj // Demis D. John 20:08, 22 April 2025 (UTC)
Suss SB6-8E
We found a blown resistor (and a questionable op amp) on one of the boards that contains the z-axis motor circuit. However, we still cannot get the tool to initialize. Next we will try swapping out the hard drive again and run some more tests.
I will send out an update once we have one. -Aidan // Demis D. John 00:35, 8 December 2024 (UTC)
ICP1 Down
The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps. //Vraj Mehalana 14:17, 1 March 2024 (PST)