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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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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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=====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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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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Test run completed without issue. System is ready to use, EXCEPT for heater - contact supervisor for heater use. See email for updates to operating procedure. |
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// [[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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//[[User:Mehalana v|Vraj Mehalana]] 11:48, 26 October 2023 (PDT) |
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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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=====ProbeStation scheduled IT maintenance===== |
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The ProbeStation will be undergoing IT maintenance and will be unavailable on the following dates : |
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* 10-30-23 |
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* 10-31-23 |
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* 11-01-23 |
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* 11-02-23 |
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Please plan your work activities accordingly. |
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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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//[[User:Mehalana v|Vraj Mehalana]] 14:52, 30 October 2023 (PDT) |
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https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn |
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Initially it was planned to remove the hoist again to rebuild it to solve the leak. |
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-- Vraj |
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The manufacturer is sending out a rebuild kit under warranty since it is a brand new hoist that is leaking. |
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// [[User:John_d|Demis D. John]] 20:08, 22 April 2025 (UTC) |
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When that arrives I will schedule another all day event to rebuild the hoist. |
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I cleaned up the leaked oil, checked oil level, and did an inspection of the tool. |
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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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System is back up and available for use. |
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I will send out an update once we have one. |
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//[[User:Mehalana v|Vraj Mehalana]] 11:11, 23 October 2023 (PDT) |
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-Aidan |
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=====Unaxis VLR - GapFill allowed Mon 30th 5pm to Wed 6am===== |
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// [[User:John_d|Demis D. John]] 00:35, 8 December 2024 (UTC) |
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We are still working on an improved GapFill recipe. |
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To allow your processes through, on Monday EVENING at 5pm we will allow the old "450W GapFill" recipe to be run, |
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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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- starting Monday Oct 30th, evening at 5pm, |
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- ending Wed Nov 1st, morning at 6am. |
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Reminder: You may NOT run the 450W recipe outside these allowed times, and you may Not modify our recipes apart from Dep/Clean TIME. |
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Let me know if you have any questions. |
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//[[User:Mehalana v|Vraj Mehalana]] 09:55, 11 October 2023 (PDT) |
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=====Wafer Bonder, (Suss SB6-8E)===== |
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The top heater has failed. We are currently in the process of trying to source a new heater. we will send out an email once I have an update. |
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//[[User:Mehalana v|Vraj Mehalana]] 09:59, 20 September 2023 (PDT) |
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=====EVG Activation: Up===== |
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The FSE has completed the work on the tool and I have made several test runs without issue. |
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IMPORTANT - Please see corresponding email for changes in operation. |
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//[[User:Mehalana v|Vraj Mehalana]] 15:58, 24 October 2023 (PDT) |
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Latest revision as of 22:53, 13 June 2025
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)