Electronics Forum: fr4 cem3 (Page 1 of 2)

cem3

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.

FR4 or CEM3

Electronics Forum | Tue Jun 15 01:30:32 EDT 2010 | nikopolidis

So..? FR4 or CEM3 ?

FR4 or CEM3

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

FR4 or CEM3

Electronics Forum | Fri Jun 04 11:28:15 EDT 2010 | mikesewell

At 400C, I'd worry about the solder as well....

FR4 or CEM3

Electronics Forum | Wed Jun 23 07:24:55 EDT 2010 | szpcbpartner

welcome to PCB Partner, there are more than 2300 PCB suppliers here. http://www.pcbpartner.com

FR4 or CEM3

Electronics Forum | Fri Jun 04 01:13:31 EDT 2010 | boardhouse

Hi fotis, Big difference between Cem3 & FR4 is that FR4 the glass is woven and Cem3 is sheet glass non-woven. for Multi layer product, i would not consider Cem3 due to increase chance of de-lam due to lack of weave for strength. Cem1 and Cem3 are

Non-halogenated PCB

Electronics Forum | Wed Jul 19 11:06:42 EDT 2000 | polymer

Where can I find laminates containing non-halogenated PCB? I'm especially interested in FR-4 and CEM-3, 1.6 mm 25um. Thanks in advance! Dr. Lennart Johansson Polymer Support

FR4 or CEM3

Electronics Forum | Fri Jun 04 01:38:09 EDT 2010 | nikopolidis

Thanks My mistake on the previous post is that the Temperature will be way beyond 90C maybe reach to 400c as the PCB will be placed under the Heating plate of the sandwich maker! So my concern is the heating tolerance! Appreciated your knowledge b

FR4 or CEM3

Electronics Forum | Wed Jun 16 00:09:05 EDT 2010 | boardhouse

I would be concerned with either material at that temp. i would re-post your question on one of the engineering forums below. http://www.eng-tips.com/ http://www.electronic-circuits-diagrams.com/forum/ Regards, Boardhouse

material of laminates of printed circuit board

Electronics Forum | Thu Feb 03 06:21:57 EST 2000 | Ignacio Simon

I would like to have information about the materials commonly used for laminates of printed circuit boards, their main thermal, mechanical, humidity and electrical characteristics and proper finishing and aplicattions, and advantages/disadvantages be

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