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=====Dicing Saw Service Visit=====
===== 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).
The dicing saw will be receiving its annual PM this Thursday beginning at 8am. The FSE will also be looking into the theta rotation issue, so it is possible the work could extend into Friday. I will send out an update email sometime Thursday afternoon as to the status of the tool.
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
-Lee
// [[User:John_d|Demis D. John]] 16:28, 2 July 2025 (UTC)


===== SignupMonkey + Wiki: Off-Campus Access=====
//[[User:Mehalana v|Vraj Mehalana]] 10:23, 8 July 2024 (PDT)
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:
=====Velion FIB Tool DOWN=====
Raith service have completed the source change, resolved the power supply and column alignment issues, and restored the Pt deposition capability to full capacity. With remote assistance from Raith I will run some calibrations and stability tests over the next few days. After that I will return the tool to general use towards the end of the week.


https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn
The new ion source is AuGeSi. We have no plans to return to GaBiLi for the foreseeable future. Please get in contact if you have any questions.


-- Vraj
-Dan
// [[User:John_d|Demis D. John]] 20:08, 22 April 2025 (UTC)


=====Suss SB6-8E=====
//[[User:Mehalana v|Vraj Mehalana]] 10:23, 8 July 2024 (PDT)
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
// [[User:John_d|Demis D. John]] 00:35, 8 December 2024 (UTC)


=====ICP1 Down=====
=====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.
The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps.
//[[User:Mehalana v|Vraj Mehalana]] 14:17, 1 March 2024 (PST)
//[[User:Mehalana v|Vraj Mehalana]] 14:17, 1 March 2024 (PST)

=====Lab Access Changes: Symmetry App=====
The iris scanner has been decommissioned. Please use the card reader which supports:

-Physical card

-Mobile phone via Symmetry App

//[[User:Mehalana v|Vraj Mehalana]] 16:59, 14 June 2024 (PDT)

=====Wafer Bonder, (Suss SB6-8E)=====
SUSS aims to be on site in early February. We’ll will send out an email once I get confirmation for a specific date.
//[[User:Mehalana v|Vraj Mehalana]] 14:23, 13 December 2023 (PST)


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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)