Electronics Forum | Sun Apr 05 09:46:47 EDT 1998 | Earl Moon
| We are looking at reflow soldering some Flexi-rigid | pcbs. I have heard that IR reflow soldering can make the Polyimide "self heat" and cause de-lamination. | Does anyone have any info. The thermal problems associated with polyimide rigid/flex de
Electronics Forum | Thu Jan 03 08:44:08 EST 2002 | davef
The Tg of the resin commonly used in FR-4 is 140�C. Consider checking with your supplier to better understand the specific materials used in constructing your board.
Electronics Forum | Sun Feb 02 10:00:55 EST 2003 | davef
Mitsubishi Gas & Chemical's Bismaleimide-Triazine (BT) resin laminates are the defacto standard material for BGA. Have you checked with them?
Electronics Forum | Tue Apr 22 13:32:23 EDT 2003 | swagner
Does anyone have any data pertaining to contaminates baking out of a fiberglass resin pallets used for processing flex circuits? If so does this phenomena increase over time? Thanks,
Electronics Forum | Tue Jun 10 10:20:44 EDT 2003 | ronih
Hello, I need some info. about CLEAN (Resin) solder pastes (manufacturers & P/N), not water solouble not RMA. Thanks Roni
Electronics Forum | Thu May 13 17:11:48 EDT 2004 | Longhua
We are looking for PCB suppliers capable of building .5mm through hole boards. Internally, we require 5 mil traces, sometimes 4 mil. Our preferred material is Polyimide or BT Resin, and perhaps FR408. All help and/or recommendations is greatly appre
Electronics Forum | Sun Jul 24 07:03:33 EDT 2005 | davef
Warpage problem causes * MLB constructions (not homogeneous or unbalanced - too resin rich or poor) * Supplier process capabilities (lamination cycles) * Material selections (usually cheap and dirty), etc.
Electronics Forum | Tue Nov 22 09:52:57 EST 2005 | moonshine
Might be resin smear. Check out all the stuff on my free site as articles, photos of almost every board defect imagineable plus much more. Did I mention, It's ALL FREE ALL THE TIME? MoonMan
Electronics Forum | Thu Aug 31 08:29:21 EDT 2006 | GS
Hello, which is the most reliable and suitable resin (AR, ER, UR, SR) to coat automotive Assembled PCB (PBAs) ? Your experience and advices will be appreciated. Thank you Best Regards...........GS
Electronics Forum | Wed May 30 17:06:39 EDT 2007 | gsala
Are there significant diffrences in terms of soldering (wire for manual solder) performance by using RO vs RE fluxes? Wich are the main differences between the two fluxes? Thank you Regards.....GSx
