Electronics Forum | Fri Mar 18 15:46:14 EDT 2011 | remullis
I agree with the comments below. I see no difference with lead free. Across five reflow ovens our external nitrogen tank was about 14' tall and 7' round. I am with a different company now due to the great ole american "lets send product out of the co
Electronics Forum | Tue Aug 16 17:11:26 EDT 2011 | bobbydur
Ok, thanks to you all for your excellent advice. I'm ready to put this to bed now but just before I do, maybe there is 1 more thing I can try. Can you see RESET printed on the board above the buzzer and below the battery? There are 2 silver points in
Electronics Forum | Wed Aug 08 14:32:50 EDT 2012 | leemeyer
According to Quad data sheet, the max process temp on a ZCR oven is 310C. I am taking a guess that the "Critical Temperature" message may be Quad's way of saying that you have entered to high of a setting. Try bringing the setpoints to something belo
Electronics Forum | Tue May 16 20:36:11 EDT 2000 | Dave F
D: I�d say you�re correct about dross cleaning the sinuses, but it really get�s ya dizzy up over the long term and then it makes ya slobber. The dental floss thing is just a lyrical thing from a wasted youtt (as Danny Devito said in "My Cousin Vinn
Electronics Forum | Wed Mar 30 15:29:37 EST 2005 | Mark
I am not an expert however, I don't see any issues with this. Those joints of nearby components will melt and solidify back once they go below 183 C. Don't see how this could present quality issues as components may pass through reflow several time
Electronics Forum | Thu Feb 25 07:37:42 EST 2010 | pcbrown
We are using Humiseal 1B31 and polyester dots for masking. We are spraying this in a Binks sprayer mixed at almost 1:1 with 521 thinner. Whe are seeing the coating creating thin halos around the poly dots as if the dots are "rejecting" the coating. T
Electronics Forum | Thu Jun 05 16:44:19 EDT 2003 | blnorman
The data we have is from an IBM report. Below 100�C the SAC reliability is almost double that of SnPb (-40 to 100�C thermal cycle). When the upper end temp is increased to 125�C the reliability drops to 75% of SnPb. I'd like to see the data that s
Electronics Forum | Sun Aug 28 22:25:12 EDT 2005 | sonata06
Origin: China Price: To Talk About Specification: This M66 Block is a wiring block system. Cables can be bought to the block from above or below. Cable are routed out the side of the bracket and to the side of the block. As little sheath as possibl
Electronics Forum | Thu Jan 10 02:16:09 EST 2019 | ameenullakhan
Hi Steve, Thanks. This from the trusted supplier. HASL finished PCB. Even PCB supplier is using the water wash flux for fabrication. Its almost eliminated with N2 environment. And we had got a expert view from Dr. Lee of Indium on the issue st
Electronics Forum | Thu May 14 22:45:46 EDT 2009 | davef
You're correct. It's a peculiar looking defect. With measling, we expect to see discrete white spots or crosses just below the surface of the base material. We don't see that here. We do see a similar condition at almost every PTH in the picture, a
