Gentlemen - the PCB "bible" is "Printed Circuits Handbook", Clyde F. coombs (ed), McGraw Hill. It has all that sorta stuff - should be on the shelves in a good tech library? Debbie --- Brent Brown wrote:> > Denny & Dmitry...from each of your examples above I calculate 3.26kg/m2, > and my PCB supplier came up with a figure of 3.4kg/m2. Seems to work out > right for the package I received too (darn it!). > > Thanks for your help! ____________________________________________________ Do you Yahoo!? Try Yahoo! Photomail Beta: Send up to 300 photos in one email! http://au.photomail.mail.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist