Electronics Forum | Fri Apr 25 11:38:22 EDT 2008 | vortex337
Our company has run into an issue with de-wetting of lead free components. Our profile is dead on with paste manufacturers specs. We have had this issue with both gold immersed, and hot air leveled boards. We have tried three different solder paste m
Electronics Forum | Fri May 23 18:55:20 EDT 2008 | gregoryyork
This is one of the biggest mistakes with the Lead Free process. We have all listened to the 'industry experts' and followed their advice and unfortunately got it wrong. Keep the dwell times (dependant on alloy selection) the same as Leaded so you are
Electronics Forum | Thu Jul 17 20:20:12 EDT 2008 | davef
Wave set-up DOE * Immersion depth [1/3 to 2/3 of board thickness] has the least impact of any variable in wave soldering. * Contact length the greatest impact. * Control flux density, time through preheaters, top side temperature as the board reaches
Electronics Forum | Fri Sep 05 19:56:56 EDT 2008 | hegemon
We did extensive side by side (by side) testing of three AOI machines Omron, YesTech and Mirtec. In the end, even with weighted scores, the difference in the top two machine was still only four/tenths of a point. Third place was a distant 14 points
Electronics Forum | Tue Sep 16 10:15:48 EDT 2008 | mw_fl
Would appreciate any input you might have in our search for an SMT line. We are an OEM done our through in house but outsourced our SMT production. We have a couple of new products that are going to be higher volume so we have decided to look into ad
Electronics Forum | Wed Oct 29 13:53:52 EDT 2008 | andrew_11
Hello Reese, I had an opportunity to look at the Yestech B3, Mirtec MV-3 and the Landrex Optima. Although I was looking at Desktop AOI Systems, Landrex was very persistent in getting an in line system in front of me at the time. The first machine I
Electronics Forum | Wed May 13 03:22:26 EDT 2009 | J.Hall
We use SAC387 (or 96SC) and I found that the SelectX was only marginally effective and that other factors (varying the wave height mainly - we use pallets) affected bridging more. Also, because we run different products at the same time through the
Electronics Forum | Tue Aug 18 17:49:16 EDT 2009 | dyoungquist
Is there a limit to how many times a pcb with components can be run through a reflow oven before the components start to degrade? Example: We load the SMT components on the bottom side of the pcb and run it through the reflow oven. Next we load the
Electronics Forum | Wed Sep 02 16:41:44 EDT 2009 | pcbcleaning
Advanced Cleaning Solutions is a Johnstown, PA based electronic manufacturing service provider (EMS) with more than 3,500 square feet of ESD safe facilities. Our services include precision PCB cleaning and ionic cleanliness testing/verification usin
Electronics Forum | Fri Jan 01 10:17:49 EST 2010 | jeffreyj
Long time no update. We ended up buying a used Quad IIc for something like $2500 + shipping - no kidding - through CAE. They originally wanted $5,200 but they wouldn't commit to saying it was operational and we wouldn't commit to buying it if they di