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===== 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.
// [[User:John_d|Demis D. John]] 18:36, 16 June 2025 (UTC)


=====Wafer Bonder=====
===== 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.
The issues still remain but the investigation is pointing to a couple of boards in an external control computer. JEOL service are running a test overnight to try isolate the issue. Hopefully more will be known in the morning.


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.
System down for now...
//[[User:Mehalana v|Vraj Mehalana]] 13:34, 6 August 2024 (PDT)


We are close, very close, but still not quite there. And I am really sorry that is still the case…
=====Unaxis ICP-PECVD Update=====
-Bill
Unfortunately the shipment of repaired parts was significantly delayed. I will be installing them and testing on Tuesday. With any luck the system will be available Tuesday evening.
// [[User:John_d|Demis D. John]] 22:53, 13 June 2025 (UTC)


===== SignupMonkey + Wiki: Off-Campus Access=====
Tony
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:
//[[User:Mehalana v|Vraj Mehalana]] 16:26, 26 July 2024 (PDT)


https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn
=====Dicing Saw Service Visit=====
The annual PM on the tool has been completed. However, there is still the issue with the chuck not rotating a perfect 90 degrees after aligning the first angle, so you will still have to perform alignment for angle #2. ADT is looking into sending us a cal plate to try and rectify this as the first potential solution.


-- Vraj
-Lee
// [[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.
=====Velion FIB Tool DOWN=====
-Aidan
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.
// [[User:John_d|Demis D. John]] 00:35, 8 December 2024 (UTC)

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.

-Dan

//[[User:Mehalana v|Vraj Mehalana]] 10:23, 8 July 2024 (PDT)


=====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 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)