Template:Announcements: Difference between revisions
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===== Chemical processing is UP ===== |
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There was a short ~30min campus water outage, but it has now been restored. |
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The latest revision of software has several bugs: see email for details. We are working with Oxford to resolve via software upgrade. |
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Chemical usage/processing is now allowed as normal. |
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// [[User:John_d|Demis D. John]] 18:36, 16 June 2025 (UTC) |
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===== Raith EBL Update ===== |
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Unfortunately the fix discussed in the last update turned out to be a good news/bad news thing. The good news is that the majority of the field distortion problem we have experienced since the install has been addressed. However the bad news is that there is still a residual settling effect that is distorting the field in one part of the field only and prevents the tool from fully meeting specifications. So it turned out to a layers of an onion kind of thing – because of course it did. |
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The ASML will be down for periodic preventative maintenance on Jan 29th-Jan31st, please plan your process accordingly. |
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So the suspect now is the fine focus coil in the column (one of the factory engineers predicted stitch shifts when a faulty fine focus coil is present which essentially replicated the errors we are now seeing) and the question now is how to get one of these sent to UCSB. They are a factory install item so for us to get one, and one that has been tested and confirmed to be fully operational, would require it to be taken from a tool currently under fabrication on the production line. |
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Beginning Tuesday January 23rd, we will be pulling gowns and booties for refresh. Please remove all personal items from your suits prior to the week your section will be cleared. |
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We are close, very close, but still not quite there. And I am really sorry that is still the case… |
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-Bill |
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EBeam1 is UP. |
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// [[User:John_d|Demis D. John]] |
// [[User:John_d|Demis D. John]] 22:53, 13 June 2025 (UTC) |
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===== SignupMonkey + Wiki: Off-Campus Access===== |
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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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The new parts have been installed and the tool has been tested. |
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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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We have added a timer that interlocks the lamp power supply since some users seem to have a problem remembering to turn the tool off when finished with it. The minimum time it can be set for is 30 minutes and the max is 4 hours. You will no longer be operating the main breaker on the front of the power supply. I have updated the SOP to reflect the changes, there is a copy at the tool and on [https://wiki.nanofab.ucsb.edu/wiki/DUV_Flood_Expose#Documentation:~:text=Exposure%20System%20Spectra-,Documentation,-%5Bedit%20%7C its Wiki page]. |
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https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn |
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-- Vraj |
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=====Job Opening: Process Engineer===== |
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The Nanofab has a current job opening for a Process/Wafer-Fab Engineer, see the [https://wiki.nanofab.ucsb.edu/wiki/Nanofab_Job_Postings NanoFab Job Openings page] for details. |
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//[[User:John d|Demis D. John]] 14:52, 30 October 2023 (PDT) |
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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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I will send out an update once we have one. |
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=====Lab Access Changes: Symmetry App===== |
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-Aidan |
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Card/Iris scanner access is still currently enabled. However we will be moving to a smartphone-based access system. '''IMPORTANT''': check your email to setup the new smartphone access system, so you will be ready when we switch to the new system. Look for an email titled '''''"Invitation to Access Symmetry App"'''''. |
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// [[User:John d|John d]] 13:49, 7 November 2023 (PST) |
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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. |
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=====Wafer Bonder, (Suss SB6-8E)===== |
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SUSS aims to be on site in early February. We’ll will send out an email once I get confirmation for a specific date. |
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//[[User:Mehalana v|Vraj Mehalana]] 14:23, 13 December 2023 (PST) |
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Latest revision as of 18:36, 16 June 2025
Chemical processing is UP
There was a short ~30min campus water outage, but it has now been restored. Chemical usage/processing is now allowed as normal. // Demis D. John 18:36, 16 June 2025 (UTC)
Raith EBL Update
Unfortunately the fix discussed in the last update turned out to be a good news/bad news thing. The good news is that the majority of the field distortion problem we have experienced since the install has been addressed. However the bad news is that there is still a residual settling effect that is distorting the field in one part of the field only and prevents the tool from fully meeting specifications. So it turned out to a layers of an onion kind of thing – because of course it did.
So the suspect now is the fine focus coil in the column (one of the factory engineers predicted stitch shifts when a faulty fine focus coil is present which essentially replicated the errors we are now seeing) and the question now is how to get one of these sent to UCSB. They are a factory install item so for us to get one, and one that has been tested and confirmed to be fully operational, would require it to be taken from a tool currently under fabrication on the production line.
We are close, very close, but still not quite there. And I am really sorry that is still the case… -Bill // Demis D. John 22:53, 13 June 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)