Electronics Forum | Tue May 16 13:55:12 EDT 2000 | Boca
John's right, Stevens makes a good product which lasts quite a while, they have many variations of products to choose from also. Another supplier is Dynamic Technologies, they make a titanium cover with a silicone compound jacket, pricey but they wo
Electronics Forum | Thu May 17 15:17:42 EDT 2001 | blnorman
Parylene is arguable the best conformal coating there is, unfortunately it's also the most expensive. We had considered using it some time back, but due to environmental and safety issues, we would have had to build a new building to house the proce
Electronics Forum | Sat Feb 06 07:39:30 EST 1999 | Wayne Bracy
| | | I am looking for a piece of equipement that can | safely remove silicon die(200mil by 200mils) from a LTCC board. My present method involves a dental drill which often goes through the dielectric layers and causes scrap. | | | | |
Electronics Forum | Tue Jun 02 18:01:47 EDT 1998 | Earl Moon
| | | We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is no
Electronics Forum | Sat Jan 03 18:13:58 EST 1998 | David Jacks
Tom: You are right. Pre-heating is just as necessary in rework as it is in intiial production. Zephyrtronics produces an economical convective bottom side pre-heater known as an airbath. This product ramps the substrate and assembly at 2-4 degrees
Electronics Forum | Mon Nov 12 16:13:48 EST 2001 | davef
Underfill is primarily used in flip chip, CSP attach applications. It is used to balance the differing thermal expansion rates for an organic board, solder, and silicon die. There are a fair number of papers written on this in the SMTA [www.smta.or
Electronics Forum | Mon Dec 03 20:12:41 EST 2001 | Kelvin Kok
Hi Peterson, We are in the business of manufacturing wave, SMT pallets and all kinds of toolings. With our 11 years expertise, we definitely able to meet your requirements with quality products. With our location in Silicon valley and supporting ma
Electronics Forum | Tue Apr 23 11:46:29 EDT 2002 | tombr
Howdy Netter's I was talking with my Paste and Flux Supplier about concerns of conforaml coating over "No-Clean" flux. Supplier informs me that this should not be a problem, but I wanted to poll the industry. 1. Does anyone here conformal coat ove
Electronics Forum | Fri Apr 26 09:32:22 EDT 2002 | blnorman
We conformally coat over NC solder paste. No problems. We're using a platinum catalyzed addition cure silicone. The only concern with this conformal coating is cure inhibition. You must test the coating over the residues to be sure there is no in
Electronics Forum | Fri Aug 30 16:35:05 EDT 2002 | davef
Oooo, I get it. Sorry I am so dense. So, as Johnny Cochran might say, your pads are so slick that the paste won�t stick. So, either: * Someone is slimming your boards with goop that prevents the paste from sticking on the pads. Some plastic bag h
