Star-fst-l mailing list

["Ye, Zhenyu" <yezhenyu AT uic.edu>]

Hi Jianing, 

Thanks for the reply and suggestion. Fermilab technician said that she could 
try to use these pads for wire-bonding pull test for prototypes. We should 
consider adding pads to production hybrids. 

Zhenyu

> On Jan 28, 2020, at 2:49 AM, 董家宁 <jndong AT sdu.edu.cn> wrote:
> 
> 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
> 
> <large pad on APV25.png>