Electronics Forum | Thu Feb 23 14:40:37 EST 2006 | russ
We have made no changes to our PCBs for pbfree.
Electronics Forum | Fri Oct 23 03:52:38 EDT 2009 | linseeg
What is the different between Rogers 4403 & Rogers 4350? Can we use two different material to build a PCB? If I use Ro4403 as prepreg and Ro4350 as core what is the advantages?
Electronics Forum | Wed Feb 20 09:29:19 EST 2008 | mun4o
ni, I had similar problem too.I bake PCB in SW mashine - about 8h ,T=90 C.Problem is in the base material of PCB - there are moisture in the material.After my complaint to PCB factory , they change material and the problem disappear.
Electronics Forum | Tue May 25 13:30:38 EDT 2010 | nikopolidis
HI Please Advice witch material can stand more heat FR4 or CEM3. PCB assembly will be used under the body of toaster Temp. range 90°C Could anyone tell me the difference in PCB material For imcoming quality control. Thanks & regards Fotis
Electronics Forum | Fri Oct 05 09:15:23 EDT 2001 | Ben Bierlein
It is a PCB material that has a woven glass / epoxy internal core and glass veil surface. It is in between the paper materials (FR1,FR2 and CEM1) and FR-4 as far as strength and cost. It is available in HiCTI material for high power applications.
Electronics Forum | Thu Oct 29 16:27:37 EDT 2009 | bhartman
Does anyone have experience with the smoke release properties of PCB laminates? I need to pass UL 2043 and I know FR4 does not pass. I also need to be ROHS and otherwise UL listed/recognized material. Thanks.
Electronics Forum | Wed May 15 16:18:58 EDT 2019 | stephendo
Look up the glass transition temperature (Tg) for the PCB material. If you get the PCB above this temperature it will become quite soft. If it is a populated board remember to take any moisture sensitive devices on it into consideration.
Electronics Forum | Sat Jun 06 15:14:35 EDT 2009 | ysutariya
If the concern is the increased moisture absorption associated with lead-free capable materials, you probably have the most experience with phenolic materials like Isola IS410 or 370HR. The best move would be to switch to an IPC 4101/99 or /124 mate
Electronics Forum | Tue Jul 13 03:30:46 EDT 1999 | George
Our plant in Slowakia tries to convince me that it is not possible to reflow FR2 PCB-material. At this moment the PCB's leave the reflow dark coloured and they are schrinked. I'm still waiting for a reflow profile, because I can't believe that it is
Electronics Forum | Wed Jun 21 14:14:43 EDT 2000 | Gary Hunt
I need to construct test boards for which will be repeatedly subjected to Highly Accelerated Stress Screens, (HASS), and am looking for recommendations for materials. Would an Epoxy Glass or an Epoxy Glass Composite be least suceptible to exposure t
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