Electronics Forum | Sat Aug 26 10:28:05 EDT 2006 | Ola
Hi, this is not a solution for your o-ring "belt" problem but a guideline for the future on an o-ring "belt" (wrong word as it is Not a belt) conveyor. These crazy O-rings have a small radius which makes it somtetimes hard to do a conveyor width adju
Electronics Forum | Tue Mar 27 16:22:10 EDT 2007 | donjohnson
60G are common, as are vibration events of >1.5Grms. And drop heights are just outrageous, old billy throwing your new server off the truck doesn't care too much about the glass house theory, but loves to throw anything that he can lift... say he cra
Electronics Forum | Mon May 14 14:34:05 EDT 2007 | rgduval
I have to agree with Jax. We've had some successes, and some horrible failures using white-tin. Generally in solderability, and apparently related to the somewhat more rapid deterioration of white-tin finishes. We've run white-tin as an SMT only
Electronics Forum | Tue Nov 20 09:50:07 EST 2007 | rgduval
Only on the bottom side? Run that side first . We usually determine our run process based on the heaviest components, and propensity for falling off during the second reflow process. If there's only the one BGA on that side of the board, we'd tend
Electronics Forum | Sat Mar 14 09:12:59 EDT 2009 | davef
First, there is no good justification for getting solder on gold fingers. Second, it is well known that solder on gold fingers is unacceptable. So, shipping boards with that condition indicates sloppy quality practices at your CM. Third, that being
Electronics Forum | Fri May 18 10:43:32 EDT 2012 | davef
Umar Chapter 7 of IPC-HDBK-830, Guidelines for Design, Selection and Application of Conformal Coatings deals with compatibility of the different materials in the chain. Have you: * Tested your bare boards at incoming for cleanliness with your Omega
Electronics Forum | Fri Aug 28 12:05:12 EDT 2015 | davef
“The global automotive industry demands world class levels of product quality, productivity and competitiveness as well as continual improvement. To achieve this goal many vehicle manufacturers insist that suppliers are certified to the quality manag
Electronics Forum | Tue Apr 19 16:20:05 EDT 2016 | davef
Don't blame it on the poor paste thickness requirement [although I might go on to argue that it's could be a contributor to the issue]. Most likely you're the problem. About 70% of the time solder on gold fingers is caused by poor cleaning of screen
Electronics Forum | Fri Mar 17 21:38:55 EDT 2017 | jlawson
I think the main driver is MTBF data driven by the Car OEMS, mainly german makers pushing this onto suppliers in supply chain. Vacuum soldering and void reduction is a hot topic for the leading electronics suppliers in Germany at the moment. Is not r
Electronics Forum | Wed Oct 03 23:42:32 EDT 2018 | gaintstar
SMT Reflow Oven Factory http://www.flason-smt.com/product/SMT-Reflow-Oven-Factory.html Introduction of SMT Reflow Oven Factory: 1. Windows XP platform, user friendly interface and easily swap between bilingual of English & Chinese. 2. Digital contr
