Star-fst-l mailing list

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

Maowu,

This is great. Please do both the flatness and dimension measurements.

Best,
Zhenyu

> On Mar 11, 2020, at 7:51 AM, Maowu Nie <nie AT rcf.rhic.bnl.gov> wrote:
> 
> Hi Zhenyu,
> 
> About the hybrid, we need to focus on two things:
> 1. variation of thickness.
> 2. variation of pad distance
> 
> Based on the discussion, we just contacted with the two vendors.
> The old vendor: The thickness variation of FPCB can be further reduced to 
> +/-30μm by multiple adjusting the thickness of each layer. But it's hard 
> for them to reduce the variation of pad distance.
> The new vendor: The variation (+/-50μm) of the thickness is the limit they 
> can do now. But for the variation of pad distance, by adjusting some 
> parameters in their configuration files, it can be further reduced to 0.10% 
> (currently 0.15%).
> 
> We will try to do the flatness test of the hybrid when we go back to SDU.
> 
> Thanks,
> Jianing and Maowu
> 
> 
>> On Mar 6, 2020, at 6:57 AM, Ye, Zhenyu <yezhenyu AT uic.edu> wrote:
>> 
>> Dear all, 
>> 
>> We will have the Weekly FST meeting on Monday starting at 9am EST (BNL 
>> local time). Please note that the Daylight Saving Time in the US starts on 
>> Sunday March 8, i.e., when US local standard time is about to reach 
>> Sunday, March 8, 2020, 2:00:00 am clocks are turned forward 1 hour to 
>> Sunday, March 8, 2020, 3:00:00 am local daylight time instead. This 
>> implies that the meeting will start one hour early if you are in 
>> Qingdao/Tainan. 
>> 
>> Bluejeans Meeting URL https://bluejeans.com/101020434
>> Meeting ID: 101 020 434
>> 
>> https://drupal.star.bnl.gov/STAR/blog/yezhenyu/forward-silicon-tracker-weekly-meeting
>> 
>> Tentative meeting agenda:
>> 
>> 1. Mechanical structure                                   by Yi 
>> Yang/Han-Sheng Li 
>> 2. Prototype Module Assembly and Test         by Zhenyu Ye, Xu Sun/Andres 
>> Aguilar
>> 3. FST Fast Simulator and Geometry Check   by Te-Chuan Huang
>> 4. Tracking Studies                                          by Krishan 
>> Gopal
>> 
>> Best,
>> Zhenyu
>> _______________________________________________
>> Star-fst-l mailing list
>> Star-fst-l AT lists.bnl.gov
>> https://lists.bnl.gov/mailman/listinfo/star-fst-l
>