Hello,
Thanks for all the information in the Layer Stackup Info. string!
Would anyone give me an example of a board stackup (4 layer) for a 80 mil
thick PCB and a 62 mil thick PCB?
I don't have the IPC standard for prepreg. The PCB is specified as 80 mil
for mechanical
reasons only. The PCB is 16" wide x 13" long and with 62 mil thickness the
board bounces
in the solder wave process. At 80 mils the PCB is stronger and still allows
the components
designed for 62 mil thick PCB's to work (components all thru-hole).
Without the board stackup specified sometimes the PCB thickness comes in at
62 or 90 mil
instead of what is specified 0.080" +/- 0.006".
Thank You!
Jeff Adolphs
Lake Shore Cryotronics, Inc.
Westerville, Ohio, USA
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