Star-fst-l mailing list

[Aschenauer Elke-Caroline <elke AT bnl.gov>]

Dear All,

so indeed cost for manpower and M&E is important, but what is also important that we have prototype which is as close as possible to the final design, becuase at the end this might safe a lot of  headache and time at the end.

So Mike if it is not totally out of line, can I suggest you get quotes and a schedule for producing v3.0 .

Thanks elke

On Dec 3, 2019, at 17:41, Zhenyu Ye <yezhenyu2003 AT gmail.com> wrote:

Dear all

Costs of manpower and money need to be considered, but one bottom line is that we must have 3-4 cables ready for FST prototype module test before the end of January 2020 at the latest.

Zhenyu

On Dec 3, 2019, at 3:32 PM, Gerard Visser <gvisser AT indiana.edu> wrote:

hi Mike,
I think if we truly need more than two or so T-boards for first tests, then this is indeed a sensible approach. Modifying two or three or so, testing everything, making any further changes anywhere (T boards and hybrids) if needed -- hopefully not -- infomed by _complete_ results (pedestals/noise and cosmics) from that testing, and then going for production would maybe be better. But I agree modifying many of the old design doesn't make much sense.
Jianing, would the v3.0 layout be ready to fab, or more work needed in your opinion?

Gerard

On 12/3/2019 3:04 PM, Capotosto, Michael wrote:

Zhenyu/Gerard and all,
I just wanted to get a jump and get this suggestion out before the meeting. I've spoken with John Hammond regarding the modifications required to the current V2.1 T-Boards, and we agreed it will probably be a few hours of work per board - removing the duplicate components, and adding worst case ~8 jumper wires, some of which need to cross to both sides of the board.
If we create new gerbers to match the V3.0  T-Board schematic, we may be able to do a fast turn turnkey run. Getting approximate quotes from Sierra Circuits, who we've used for turnkeys before, it would be ~$2,600 to have 10 PCBs fabbed, and stuffed for an 8-day turn. If this is something that Jianing and Gerard wouldn't have time to work on, John believes he can make the changes to the gerbers directly, and send the files out, if Gerard approves the changes listed.
If we were to also make 10 "test stand cables" using the new "purple" cable, we would be looking at ~$2,400.
It would cost another ~$1,350 to attach these cables to the t-board.
This would all come to a total of $6,350. We may be able to get this price down a little bit if we got quotes from local fab houses as well, and by combining the job of making 10 "purple cable" assemblies and assembling them to the pcb - this is a rough number.
I believe this may be a good option - we would have the new revision of the board with no bodge wires, we'd be using the production cable and testing with its dielectric properties, etc., a better representation of the final product; but it may be a tight deadline if we need it by mid-January. If you think this is something we'd be interested in pursuing I can start requesting quotes and see if we'd be able to have more definite numbers by the meeting on Thursday.
Best,
Mike Capotosto
-----Original Message-----
From: Star-fst-l <star-fst-l-bounces AT lists.bnl.gov> On Behalf Of Ye, Zhenyu
Sent: Tuesday, December 3, 2019 1:00 PM
To: star-fst-l AT lists.bnl.gov
Subject: [Star-fst-l] Weekly FST meeting - 12/5/2019 9:30am BNL time
Dear all,
We will have a weekly FST meeting this Thursday 9:30am BNL time. The meeting agenda and bluejeans info can be found at https://drupal.star.bnl.gov/STAR/blog/yezhenyu/forward-silicon-tracker-weekly-meeting
1. T-board and inner signal cable - Jianing Dong, Mike Capotosto, Gerard Visser
Gerard is reviewing the changes to v2.1 T-board suggested by Mike.
2. Mechanical Structure - Yi Yang, Han-sheng Li
Updates on the status of mechanical structure fabrication and assembly, cooling soft tube compatibility test, and transportation box design
3. Module Assembly at Fermilab - Zhenyu Ye
Updates on module assembly fixture/tooling design/fabrication
4. Simulation: Te-Chuan Huang, Krishan Gopal
Updates from Te-Chuan on FST geometry modeling
If there is anything else to report/discuss, please let me know.
Best
Zhenyu
_______________________________________________
Star-fst-l mailing list
Star-fst-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-fst-l
_______________________________________________
Star-fst-l mailing list
Star-fst-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-fst-l

_______________________________________________
Star-fst-l mailing list
Star-fst-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-fst-l

_______________________________________________
Star-fst-l mailing list
Star-fst-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-fst-l

 ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-

  )    `\                                                      +

 /    '. |        Elke-Caroline Aschenauer  (she/her/hers)      =

 |       `,                                                      -

  \,_  `-/        Brookhaven National Lab                         +

  ,&&&&&V         Physics Dept.,            25 Corona Road         =

 ,&&&&&&&&:       Bldg. 510 /2-195          Rocky Point, NY,        -

,&&&&&&&&&&;      20 Pennsylvania Avenue                 11778       +

|  |&&&&&&&;\     Upton, NY 11973                                     =

|  |       :_) _  Tel.:  001-631-344-4769   Tel.:   +1-631-569-4290    -

|  |       ;--' |                           Cell-USA:  +1-757-2565224   +

'--'   `-.--.   |                           Cell-Europe: +49152220025211 =

   \_    |  |—‘                                                           -

     `-._\__/     Mail: elke AT bnl.gov        elke.caroline AT me.com           +

            +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=