Re: [PEDA] ceramic bga

2002-09-24 Thread Mattias Ericson
Hi, Why not use Thermount? We use that for space boards with large ceramic components. For power boards we use polyimide because we can get more cu thickness. We use Thermount 85 NT and that is a good material with low CTE. It is also nice for soldering but the board twist (on large boards)

Re: [PEDA] BOM and complex heirachies

2002-09-24 Thread Damon Kelly
I agree. This is the only way I've ever the got the whole Complex Hierarchy thing working. Perhaps other readers have had better luck, or understand better about how to do it. Damon Kelly Hardware Engineer -Original Message- From: Bevan Weiss [mailto:[EMAIL PROTECTED]] Sent: