As I walk farther down the PCB fab road, more and more questions come
up...Thanks to all in TN who are helping me out to learn more...

This question has to do with PCB routing.  When the PCBs are routed out to
final size, is it normal to use both a top and bottom "material" to ensure
the PCBs are flat and to ensure a clean cut?  I can guess that a bottom
material is necessary just to avoid cutting the table.  What are the
materials for this support material that is really sacraficial?  Who are the
suppliers?

Thanks again...


Kevin Glidden
Manufacturing Engineer
Luminescent Systems Inc.
4 Lucent Drive
Lebanon, NH 03766-1439
Tel # (603) 643-7766 ext. 3152
Fax # (603) 643-5947



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