Electronics Forum | Thu Dec 18 17:10:01 EST 1997 | Tom Volker
I am designing an SMT pad for a ss metal switch. Finished copper thickness is .0014 and nickle-plating originally is 150 millionths. Initial testing yields 100,000 to 150,000 switches before intermitent failures (copper is reached.) I want 500,000
Electronics Forum | Tue Apr 13 10:30:52 EDT 2004 | Ken
Threre has been speculation as to voiding as a function of solder paste liquiduous vs. ball liquiduous. Gas entrapment is thought to result if one melts before the other (I forget which order). Two profiles may yield different results as determined
Electronics Forum | Thu Nov 10 08:23:35 EST 2005 | arclightzero
Hello, I am currently trying to isolate internal fallout problems with very low yield substrates mixed with great yields and have recently found that we are using a Sn62/Pb36/Ag2 solder paste with full tin (no lead) components as well as Pb95/Sn5 sol
Electronics Forum | Mon Jan 09 07:01:47 EST 2006 | ron
I was wondering if anyone was using this machine to place 0402's and what type of 1st pass yield you were getting. I'm a little leary about the mechanical centering on such small parts. How is the feeder pick up position after it is taught? I have h
Electronics Forum | Wed Nov 29 01:25:53 EST 2006 | callckq
Dear All, I have 1 product that using solder bar from vendor called Asahi. After wave process, we found quite a sticky flux residue remain on the board. Eventually, have huge impact on our ICT fisrt pass yield(FPY). Current FPY is a the range of
Electronics Forum | Wed Jan 03 11:14:26 EST 2007 | realchunks
What is your biggest failure mode? You root cause problem could be anything from poor ICT fixture to bad incoming inspection. Generally, BGA's are a high yield producing component. Just cause they're neat-o doesn't make em' bad. As for 85% yiel
Electronics Forum | Mon Feb 14 11:59:50 EST 2000 | Charlie
If you would be so kind, I need some fundimental data for several sources. The question is, 'What is your SMT yeild directly after reflow?'
Electronics Forum | Wed Feb 16 12:57:54 EST 2000 | Claude Couture
Hi! We currently have less than 200ppm after reflow. Our products have practically no fine pitch, so it's easier to reach a low ppm.
Electronics Forum | Sat Feb 19 13:53:46 EST 2000 | Dean
...reasonable benchmark. 30 to 100DPMO is considered world class. All else? Well lets just call it "not-so-world-class". :) Dean
Electronics Forum | Tue May 23 21:08:08 EDT 2000 | Dave F
Kathy: Our RAMBUS are from last year. We are seeing 98+ yield. Sorry, we're no help. Dave F
