Electronics Forum: 6012a (Page 2 of 2)

Shrinkage in paper phenolic pcbs

Electronics Forum | Fri Aug 23 10:28:23 EDT 2002 | davef

Ah, CHEAP boards. You pay me now, you pay me later, eh? The buyers get BIG bonuses. The production types get trashed, 'cause they can run aboard they've been doing for years. Wassup? For a specification, look to: * IPC-6011 - Generic Performance

Number of thermal excursions per componet

Electronics Forum | Wed Jun 27 21:05:48 EDT 2001 | davef

BGA Cycle 1: solder ball attach. BGA Cycle 2: BGA attach to board. BGA Cycle 3: BGA removal from board. BGA Cycle 4: BGA pad dress. BGA Cycle 5: BGA ball replacement. BGA Cycle 6: BGA re-attach to board. Board Cycle 1: BGA attach to board. Boar

Solder Mask Specification

Electronics Forum | Wed Oct 24 18:09:44 EDT 2001 | davef

Allowing the board fabricator to define the board you expect to receive is fine, as long as they do a good job. Regardless of the existence of a clear product definition or not, it�s reasonable for you to argue that your receipts must meet the requi

Any comments for Quality @ AQL=0.1, C=0 ???

Electronics Forum | Mon Mar 25 15:51:04 EST 2002 | davef

ASQC re-numbered the once free (taxpayer sponsored development) MIL-STD-105 as ASQ-Z1.4, slapped their own cover on it, and now charge $40 or $50 for the same document! The standards are identical, so see if you can get one of the old �MIL-STD's� and

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