Electronics Forum: parts (Page 511 of 1117)

Predictive Models for solder defects

Electronics Forum | Thu Jul 23 16:49:04 EDT 1998 | Ted

I was wondering how successful industry has been in quantifying relationships between defects rates of particular solder problems (like bridging, opens,..) and PCA design parameters (like spacing, part orientation, pad dimensions, ...). For wave sol

Re: Univariate regression model?

Electronics Forum | Sat Jul 25 01:15:54 EDT 1998 | Chiakl

| | I was wondering how successful industry has been in quantifying relationships between defects rates of particular solder problems (like bridging, opens,..) and PCA design parameters (like spacing, part orientation, pad dimensions, ...). For wav

Re:Re: Univariate regression model?

Electronics Forum | Mon Jul 27 13:54:25 EDT 1998 | Ted

| | | | I was wondering how successful industry has been in quantifying relationships between defects rates of particular solder problems (like bridging, opens,..) and PCA design parameters (like spacing, part orientation, pad dimensions, ...). For

Re: Univariate regression model?

Electronics Forum | Mon Jul 27 13:49:53 EDT 1998 | Ted

| | | | I was wondering how successful industry has been in quantifying relationships between defects rates of particular solder problems (like bridging, opens,..) and PCA design parameters (like spacing, part orientation, pad dimensions, ...). For

Re: What's the most reliable chipshooter ???

Electronics Forum | Tue Aug 04 16:44:22 EDT 1998 | Jim Price

| | I am looking for a chipshooter capable of installing tape fed smt parts on tape up to 32mm. Chipshooter speed on 8mm components must be a minimum of 12K per hour. Reliability, customer service and price are the gating issues. Please help me ma

Help me increase my first pass yields

Electronics Forum | Thu Jun 04 11:23:44 EDT 1998 | Frank S

If you could measure and chart 3 variables in my process, what would they be? The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. They are on scored panels that measure 7"

Re: Help me increase my first pass yields

Electronics Forum | Thu Jun 04 11:57:59 EDT 1998 | Pete M

Be more specific on your problems? | If you could measure and chart 3 variables in my process, what would they be? | The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. The

Re: 15G PQFP

Electronics Forum | Tue Jun 02 12:58:07 EDT 1998 | Michael Allen

"...the part is aligned to the pads with in 10% before going into the IR oven." Sounds like the pad pitch might be okay (?). If that's not the problem, then what? I wish I had the answer, because I've struggled with heavy QFPs for some time now (2

Re: SMT Pick and Place

Electronics Forum | Wed Jun 10 08:03:51 EDT 1998 | Rudolf Kappel

:I am a German regional mgr with MIMOT. Please have a look at our homemepage...mimot.com. You will find the solution you are looking for. From 112 up to 328 barcoded feeders and a fully modular head construction allows you to start up with a small sy

Re: SMT Pick and Place

Electronics Forum | Sat Jun 06 15:39:53 EDT 1998 | andy jones

I am the UK sales manager for Europlacer and therefore biased. However our Europlacer range would be perfectly suited to your application. We supply as standard intelligent feeders so barcoding etc is no problem. please contact me on my e-mail addre


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