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[董家宁 <jndong AT sdu.edu.cn>]

Hi Zhenyu,

  As far as I know, there are no extra pads available for the wire-bonding pull test on the hybrids.

  But the APV footprint for FST is the same as that for IST, and there are some large bond pads (shown in the attached picture, red circle) on the hybrids. Maybe they could be used for the wire-bonding pull test? 

Best,

Jianing

-----原始邮件-----
发件人:"Ye, Zhenyu" <yezhenyu AT uic.edu>
发送时间:2020-01-28 05:34:06 (星期二)
收件人: "Ye, Zhenyu" <yezhenyu AT uic.edu>
抄送: "star-fst-l AT lists.bnl.gov" <star-fst-l AT lists.bnl.gov>
主题: Re: [Star-fst-l] Weekly FST meeting, Jan 27 9am

Minutes

Attendees: Elke, Flemming, Krishan, Mike, Te-Chuan, Xu, Zhenyu

1. Inner signal cables and T-boards - Mike
Expect to receive them middle of next week. Will send them together with the other parts requested by Xu for UIC test stand.
Flemming is working on the paperwork for a loan agreement

2. Module Assembly at Fermilab - Zhenyu
Had a meeting with Fermilab engineers and technician last Friday. Working on documenting the assembly procedure for FST, based on the documented assembly procedure for IST.

Question for Jianing:
1) are there bond-off pads on FST hybrids to do wire-bonding pull tests? (See page 2 yezhenyu_FST_20200127.pdf )

Question for Yi:
1) how are the wedges fixed to the supporting structure, which holes on the mechanical structures will be used?

3. Geometry - Flemming/Te-Chuan

Question for Yi:
1) is the estimated radiation length on FST_agml_01_27_2021.pdf slide 5 reasonable?
2) is the estimated weight per disk on slide 5 reasonable?

If the answers are yes, Flemming will send the new FST AgML model to Jason.

Zhenyu

> On Jan 24, 2020, at 4:38 PM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
>
> Dear all,
>
> We will have the Weekly FST meeting on Monday, Jan 27, starting at 9am EST (BNL local time).
>
> https://drupal.star.bnl.gov/STAR/event/2020/01/27/fst-group-meeting
>
> Bluejeans Meeting URL https://bluejeans.com/101020434
> Meeting ID: 101 020 434
>
> Zhenyu
> _______________________________________________
> Star-fst-l mailing list
> Star-fst-l AT lists.bnl.gov
> https://lists.bnl.gov/mailman/listinfo/star-fst-l

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