Electronics Forum | Sun Sep 01 05:39:36 EDT 2013 | leardkattiya
Hi, can someone give definition on pot life? does the pot life start once it's been taken out from fridge or the pot life starts once recommended thawing ends?
Electronics Forum | Mon Dec 15 21:31:30 EST 2003 | Dean
Ahmen Brother! I had the unfortunate pleasure of supporting sister factories in Guadalajara and Jauarez. It is a totally different environment. I had a friend at MPM that has a great story about this shop in Mexico that kept buying the Monitor Inte
Electronics Forum | Fri Apr 29 07:14:13 EDT 2005 | jdumont
Recently we have been seeing issues with an inability to print through .45mil apertures on our stencils. We have also been seeing a alot of solder balls under some BGAs (some worse than others). I was checking the refridgerator (small mini fridge) we
Electronics Forum | Fri Feb 09 14:04:22 EST 2018 | ameenullakhan
Hi Justin, The solder paste we are monitoring well. And there is thawing machine to make sure solder paste is not opened early, before it reaches its ambient temperature. we have got a suggestion that , it might be from PCB enig surface finish. Mig
Electronics Forum | Fri Apr 29 08:39:01 EDT 2005 | davef
Few solder paste suppliers recommend freezing solder paste. Check with your supplier for recommendations. Examples are: * In many cases, nothing happens. However, some pastes are susceptible to damage that impairs paste performance. As a consequenc
Electronics Forum | Tue Feb 14 14:26:13 EST 2006 | Chunks
Well, you don't want your paste to spoil! It'll give it a bad aftertaste. Actually, we refrig our paste mainly cause our stock room gets rather on the toasty side. Jars left un-friged will cause the metals to sink and leave a puddle of flux on top
Electronics Forum | Fri Jul 06 03:23:01 EDT 2001 | kennyhktan
Hi there Steven ! Please allow me to share some of my problem we're facing here with you. Here are a few points that I suggest you should check on your current process:- (1)PCB - Component land partern design ? It is per IPC spec ? - Mask
Electronics Forum | Fri Apr 04 08:49:45 EDT 2008 | ck_the_flip
Define "expired" though... 1 week? 6 weeks? 1 month? 6 months? Unrefrigerated life is generally 30 days. If paste has been stored refrigerated at manufacturer recommended temperatures, what would you guys do, like say, if you owned your own shop
Electronics Forum | Tue Sep 30 14:14:17 EDT 2008 | ck_the_flip
I've done it 3 different ways in my career (3 different places): 1.) Process Engineering was responsible for solder paste inventory (as well as all other process materials). That was a bad situation due to the blame factor. 2.) TOOL-CRIB control
Electronics Forum | Tue Mar 08 15:35:43 EST 2016 | fuji_user_2014
I am having problems with LGA solder balls under the devices. Here are some of the details: 1. There are only 2 affected parts @4 locations. 2. The parts are LTM4616EV#PBF and LTM4608AEV#PBF. 3. We are using a ramp soak spike profile. 0-100secs=r
