Electronics Forum | Tue Mar 17 08:20:59 EDT 2009 | scottp
I work for one of the largest automotive suppliers. Our Workmanship Standards pre-date IPC-610 but they are nearly identical in regards to solder balls. We supply to all the major OEMs, including the Japanese, and I don't recall our solder ball sta
Electronics Forum | Thu Oct 15 11:04:28 EDT 2009 | spitkis2
Thanks Jim. Pressing the QFN into paste was what I thought of, just wasn't sure if it would cause solder paste to be pressed outside the pad area and possibly bridge with an adjacent pad. Do you recall the ratio of paste coverage to the pad area?
Electronics Forum | Thu Feb 18 15:04:35 EST 2010 | davef
Growing tin and other dangerous whiskers: http://www.electroiq.com/index/display/smt-article-display.articles.smt.surface-mount_technology.soldering.solder-and_flux.2010.february-2010.growing-tin_and_other.html
Electronics Forum | Fri Feb 19 06:09:10 EST 2010 | lococost
feels more like a bit of propaganda. Am I missing something or is leadfree totally irrelevant in the case of Toyota's problems. Surely they are still using leaded solder???
Electronics Forum | Fri Feb 19 15:46:56 EST 2010 | patrickbruneel
Scott, I agree with you I shouldn’t have used the word completely. Let me rephrase, if lead free wasn’t a potential for contributing to the failure chapter 9 wouldn’t have been written. Have a great weekend, Patrick
Electronics Forum | Thu Feb 17 10:25:16 EST 2011 | teramisu
I found this revealing: NASA found all sorts of tin whiskers in the Toyota recalls. http://circuitsassembly.com/cms/news/10816-toyota-etc-absolved-of-ua-but-sn-whiskers-found
Electronics Forum | Mon Jul 23 20:03:19 EDT 2012 | hegemon
You'll need to login with Admin rights to apply those settings. Mirtec used to use pretty simple default passwords for admin as I recall. Check the manual, the default logins should be there. 'hege
Electronics Forum | Tue May 22 13:19:20 EDT 2012 | cbeneat
I will give 90 deg turn a try, I want to say we've tried this in the past, but my memory is not what it once was, and the operators can't recall either. Thanks for the input, I'll keep you updated.
Electronics Forum | Sat Sep 01 10:46:22 EDT 2012 | davef
Years ago, we almost bought a Manix axial lead former / trimmer, but found a used Hepco at the last hour and went that route. I can't remember, but as I recall, we wanted to be able to do standoffs and there was some issue on standoff tooling with on
Electronics Forum | Tue Sep 25 13:33:02 EDT 2012 | bobpan
I dont think you are going to find schematics for that board. Looking through my old stuff....i dont have it and i dont recall it being in the schematics. Maybe someone else can get you a set of schematics though. Good Luck
