Electronics Forum: f04 or cem (Page 1 of 2)

FR4 or CEM3

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

So..? FR4 or CEM3 ?

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

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 | Tue Jun 22 00:09:14 EDT 2010 | leadthree

You should do some testing what temp you really get. Solder will melt 260~300ºC. Back to the initial question, CEM-3 is a bit harder to buy and has not many varieties. Go for FR4, you can go for a higher Tg then the common 130ºC. There is also 140,

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

Yamaha or Europlacer?

Electronics Forum | Tue May 05 11:05:53 EDT 2015 | billmeye

Brian, thank you for taking time to discuss your buying experience, I read your link and it was very thorough. I also work for a small CEM using Mydata equipment. We have had Mydata going back to 1998 but truely are looking for something simpler. F

AOI, Pre or Post Reflow?

Electronics Forum | Wed Mar 12 09:18:10 EST 2003 | MA/NY DDave

Hi Thanks, Going to APEX to see personal demos and hear what they offer and recommend is a great idea. I mean if you want to put AOI everyplace I am sure you will be supported with open arms. What I found interesting in the article was that large

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