[Hbi-svt] Gap between adjacent Si sensors
Marc McMullen
mcmullen at jlab.org
Fri May 28 08:54:52 EDT 2010
Hi Saptarshi,
I spoke with Amrit yesterday about the length of the FR4 pcb under the
silicon and it will have to be trimmed back to so that it does not
extend into the active area. I'll adjust the drawing and resend.
Thanks
Marc
Saptarshi Mandal wrote:
> Hi Amrit,
>
> Marc, Brian and I had a discussion about a slightly modified version
> of the stave heat sink. I think the two of them spoke to you about it
> already. This simplifies the geometry of the heat sink significantly.
> The stave however, is a little thicker which would increase the gaps
> between adjacent top layers of sensors.
>
> The gaps (between the adjacent top layers) with this design are the
> following:
>
> Region 1 -- 2.657 mm
> Region 2 -- 1.968 mm
> Region 3 -- 1.609 mm
>
> The gaps between the bottom layers are in 0.3 mm range.
>
> Please let us know, if this is alright physics-wise, so we can proceed
> with this design.
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