Electronics Forum | Tue Feb 03 11:33:08 EST 2009 | nath
Hello, Can anyone list out issues or concerns with assembly with PTFE based laminates. I am looking for any concerns related to handling, SMT reflow, Wave, Baking, rework, BGAs? ANy feedback is much appreciated. Thanks!
Electronics Forum | Tue Feb 03 16:23:40 EST 2009 | gnath
Hello, Can anyone list out issues or concerns with assembly with PTFE based laminates. I am looking for any concerns related to handling, SMT reflow, Wave, Baking, rework, BGAs? ANy feedback is much appreciated. Thanks!
Electronics Forum | Mon Feb 26 20:02:42 EST 2001 | davef
First, I don�t understand why your board fabricator can�t do a good job plugging your vias. Additionally, when you consider that they forgot to plug the first batch of boards, it makes me wonder if they are desirable as a supplier. Generally, we us
Electronics Forum | Wed Nov 13 21:16:28 EST 2002 | Vinny
Hi All, I am producing a lot of high cost PCBA where the pCB material is the `ROGER' material. Due to some of the high components and handling we get pad lifted issues sometimes and as of now are unable to do repairs on these. Please help if anybo
Electronics Forum | Wed Mar 05 11:54:44 EST 2003 | ruggi
Hi JFB, I think this is an unnecessary activity, but it may depend on your RH. We are in the Spokane, WA area, and the RH avg year round is about 25-30%. We have never baked our PCBs in the 9 years I've been here across 800+ varieties, including
Electronics Forum | Tue Jan 12 11:19:16 EST 1999 | marc p
| I've heard about these reflow temperature labels/stickers but haven't seem to find them. Is there such a thing? And how reliable are they? I don't want to keep attaching thermocouple probes onto a board whenever there's a issue. | I am not so fam
Electronics Forum | Fri Oct 26 17:01:52 EDT 2001 | davef
We process no Teflon boards. Companies, such as Rogers and Taconic, make laminates of Polytetrafluoroethylene [PTFE] er �Teflon�. Common �Teflon� laminates are: * Woven glass / PTFE * Random microfiber glass / PTFE * Ceramic / PTFE * Woven glass /
Electronics Forum | Wed Jan 09 15:24:49 EST 2002 | mregalia
Thanks Chris. As I was writing my last message our mailperson dropped off the latest issue of Circuit Assembly. It has an article on mixing SMT and COB on the same board. The author recommends as a compromise 10-20 micro inches of gold over 70-100 of
Electronics Forum | Mon Mar 04 17:52:59 EST 2002 | davef
Yes, providing the surface of the via is solderable. * If so, how much paste? => Vias come in various sizes. Boards vary in thickness. So, the amount of paste to fill a via varies. Roughly, you�ll need twice as much paste as the volume of the via
Electronics Forum | Tue Jan 16 20:34:17 EST 2007 | davef
DAVE�S BOOKSHELF ASSEMBLER�S ESSENTIALS Title: Soldering in ElectronicsAuthor: RJ Klein WassinkPublisher: Electrochemical PublicationsISBN: 090115024XPublication date: December 1989 I know, I know. The book was written in 1989!!!! I use this b
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