Electronics Forum | Wed Dec 22 23:29:57 EST 2004 | KEN
Check with Dupont's web site. They have a wealth of information on the various polyimide products they manufacture. I was quite surrised at the differences in materials and in particular the dimensional stability and hydroscopy. Good stuff mayna
Electronics Forum | Thu Sep 01 18:27:28 EDT 2005 | Board House
Hi I currently Manufacture product for Dataradio Inc. in Quebec. and would be interested in quoting your product. We are a Multi-layer facility in Minnesota, we currenty manufacture layer counts between 2 & 18 layers. Line widths and Spacing down t
Electronics Forum | Thu Jun 18 00:24:13 EDT 2009 | boardhouse
Hi Mr. Halsey, Please check out our Web site: http://www.activepcb.com We are a Low-Mid volume High mix / Higher tech facility out of Taiwan with High volume out of our China facility. Proto -Production out of Taiwan - All product shipped FOB:Dest
Electronics Forum | Tue Mar 09 14:23:03 EST 2010 | zanolli
Hello SMTnetters We have a unique application requiring cleaning of an aggressive OA flux. A vapor degreasing process or the immersion of the parts in boiling solvents has some process advantages over an ultrasonic aqueous process. These advantages
Electronics Forum | Thu Jan 06 17:33:07 EST 2011 | boardhouse
Hi Johan, Sounds like you have already gone over your product very well to reduce product cost. Switching away from Deep gold Tabs & carbon ink Key pads can save quite a bit. The only other thing to suggest would be material - Moving away from Isol
Electronics Forum | Sat Nov 14 08:58:38 EST 1998 | Earl Moon
| I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | You are hearing about polyimide as in polyimide film as Kapton (TM Dupont). This material is the stuff of flex and rigid/flex circuit
Electronics Forum | Fri Oct 08 09:43:27 EDT 2004 | davef
First, don't get too excited about the thermal capabilities of conductive epoxy. An epoxy like DuPont CB-100 increases the amount of heat conducted through the barrel, but many over estimate what it can do. Calculations show for a 0.020" drilled
Electronics Forum | Tue Aug 09 11:57:11 EDT 2005 | Board House
Hi Ted, I am a Sales Manager for a Circuit board Manufacture in MN. We have seen the Majority of our Customer base switch to Enig do to shelf life issues of silver and Tin. Silver, Tin & OSP all have a shelf life between 6 - 8 Mos. Enig is betwee
Electronics Forum | Wed Jul 16 19:01:44 EDT 2008 | boardhouse
Hi Mariss, The Main Problem with China is that they are constantly in training mode due to extreme turn over of employees. There are good shops their but you need to look hard. The Company I Sale for owns Two shops, 1 in Taiwan and 1 in china. We
Electronics Forum | Fri Aug 21 00:27:09 EDT 2009 | boardhouse
Hi To Start Min Tg is just a portion of picking a lead free material, the other is Td. We recommend the following to our Customers. 2-8 layer 150 Tg. Min. / 340 Td. 8-Up. 170-180 Tg.Min. / 340 Td. The above recommendations have been used by man
