Electronics Forum | Mon Mar 31 11:10:43 EST 2003 | davef
First, most �thermal shock� recipes are not a reliability test. There is no relationship between the failures seem in these tests and in-use application. These tests show you the failures in these tests. That�s it!!! Second, accelerated life test
Electronics Forum | Thu Apr 15 11:14:34 EDT 2004 | mikecollier
Our conformal coat area has recently requested changes to our bare board houses to perform a pumice scrub operation on the PWB prior to HASL plating and delivery to us. Our first lot received caused us to have void faults under multiple component ty
Electronics Forum | Wed Apr 26 07:37:34 EDT 2006 | amol_kane
"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from
Electronics Forum | Wed Apr 26 07:37:52 EDT 2006 | amol_kane
"Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from
Electronics Forum | Wed Aug 09 08:06:07 EDT 2006 | davef
See "IPC-4554 Specification for Immersion Tin Plating for Printed Circuit Boards" 3.2.1 Immersion Tin Thickness. The most common reason for solderability issues with the white tin surface coating during multiple thermal excursions is a thin white ti
Electronics Forum | Thu Sep 14 20:11:19 EDT 2006 | davef
You weren't specific about the OSP that you use. We use Entek Plus CU-106A. Yes, just about everything removes Entek, especially if there's heat involved. Ethone states: * Alcohol strips 70% of the coating * Water removes 15% * Kyzen Lonox only t
Electronics Forum | Mon Nov 27 22:19:13 EST 2006 | ppcbs
800 degrees? Ouch! I find that every company that I do training for has at least one person that likes to go through one tip a day. The solution is tip tinning. Tell your operators to wipe the tip on a damp sponge often. Do not buy your sponges
Electronics Forum | Tue Nov 07 11:04:06 EST 2006 | muse95
What type of hardware are you looking for? Nuts and bolts? Custom machined/stamped parts? In general, stainless steel is usually considered RoHS, but more expensive. However, medical equipment usually uses things like stainless steel. However, som
Electronics Forum | Fri Feb 02 08:36:14 EST 2007 | CK Flip
Wow, I cut first cut my teeth in the Industrial motor control industry. My 1st company made motor control products like variable speed drives, solid state overload relays, soft starts, etc. and in our shop, we used nothing BUT Dow Corning silicone p
Electronics Forum | Wed May 14 20:33:52 EDT 2008 | davef
1 DYNAMIC TESTERS * Kenco ionic contamination tester (Zero-Ion) [Aqueous Technologies; http://www.aqueoustech.com 909-944-7771 Mike Konrad * Ionograph [Specialty Coating Systems; 7645 Woodland Dr, Indianapolis, IN, 46278; 800-356-8260 317-244-1200 F3
.gif)
