Electronics Forum: fr-2 and permittivity (Page 1 of 1)

PDBE and PBB replacements???

Electronics Forum | Mon Apr 25 22:56:44 EDT 2005 | davef

rush316 First, no one stated that PBB and/or PCBE are in FR4. FR4 contain tetra-bromo-bisphenol A [TBBA]. Second, there are classes [and grades] of dielectric materials used in fabricating printed circuit boards. Grades, NEMA LI-1. From these gr

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