From jbgreen@fnal.gov Thu May 19 13:51:15 2005
Date: Thu, 19 May 2005 08:55:58 -0500
From: Johnny Green <jbgreen@fnal.gov>
To: George Wolf <wolfpcb@comcast.net>
Cc: John Anderson <janderson@fnal.gov>, John Foglesong <fogie@fnal.gov>,
     Daniel Edmunds <edmunds@fnal.gov>, Alan L. Stone <alstone@fnal.gov>
Subject: adf transition layout review summary

George

We had an engineering review last evening of the layout and here are the 
issues.

1) Schematic error requires revising some trace routing, revised 
schematic enclosed.
2) Trace routing separation on layers should be more uniform, similar to 
lower section.
3) Escapes from connector should go farther from final row going 
horizontal before diagonal.
4) Layer ID's why are they different seems some read from the opposite 
orientation.
Need layer stackup copper features (see-thru indicates stacking order), 
so that there can be no stack errors.
5) Pressfit connectors should not have  thermals on grounds. (J0 and P3)
6) Relief on thermals seem large please check make sure proper size.
7) Ground isolation bar to close to P0 space it to mounting hole below .
8) All layers should be 1oz copper. (I'll make sure to emphasize this on 
the rfq for mfr)
9) Relieve reference designators farther from connectors to allow easy 
reading.
10) Top Silk Project title is now "Dzero Run2B L1CalTrig"
11) Top silk card  title should be "ADF Transition Card"
12) White block for serial number should be added..
13) Designers name John Foglesong and Johnny Green should be added.

regards

-- 
Johnny Green, Fabrications Coordinator
Fermilab
PO Box 500
Kirk and Wilson Roads
Batavia IL. 60510
ms 357
ph 630 840-3392
fx 630 840-8886