Electronics Forum: ion contamination machine problems (Page 10 of 14)

Urethane Coating (1A33)

Electronics Forum | Tue Aug 26 15:39:49 EDT 2008 | kpm135

I am not positive about this but I have been told that you cannot use acrylic and urethane coatings in systems that have had silicone run through them. It was explained to me that you can never fully get the silicone out of the existing system and th

Re: Dross Skimmin'

Electronics Forum | Tue Dec 01 13:53:12 EST 1998 | Brian Conner

All y'll: I could use your input on determining when to skim dross from a wave solder pot. On one hand, dross protects the surface of the solder from oxidation. On the other hand too much dross may affect solder

Re: Dross Skimmin'

Electronics Forum | Wed Dec 02 09:03:34 EST 1998 | Dave F

All y'll: I could use your input on determining when to skim dross from a wave solder pot. On one hand, dross protects the surface of the solder from oxidation. On the other hand too much dross may affect

Re: Bottom side bridging

Electronics Forum | Fri Apr 10 20:35:59 EDT 1998 | Steve Gregory

We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. T

Re: Bottom side bridging

Electronics Forum | Mon Apr 13 08:42:32 EDT 1998 | Bob Silveri

We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble

Re: Detecting lifted leads on QFPs

Electronics Forum | Fri May 28 16:30:39 EDT 1999 | JohnW

Yes l know this problem keeps cropping up on the forum but l've missed some of the follow-ups. Our problem is that the lifting only occurs on 3% of production so actually detecting an improvement is difficult. We're actually having to inspect

Freshman in SMT industry needing advice

Electronics Forum | Mon Mar 29 18:17:48 EST 2004 | kerryn

It should be noted that some of the main reasons to change from manual cleaning to automated stencil cleaning are: � Manual cleaning is not consistent � quality is totally in the operators hands � Contamination left on the stencil and in the aperture

Re: Dross Skimmin'

Electronics Forum | Tue Dec 01 14:30:48 EST 1998 | John

All y'll: I could use your input on determining when to skim dross from a wave solder pot. On one hand, dross protects the surface of the solder from oxidation. On the other hand too much dross may affect

Effective Alternatives To Stencil Cleaning

Electronics Forum | Wed Feb 21 16:14:44 EST 2001 | billschreiber

120 degrees F (49 degrees C.), check the fine-pitch apertures for shape distortion (stainless steel has a very poor memory, once it expands, it doesn�t always contract back to the same position). Check for dings and dents. A good stencil cleaning pr

Re: Solder on GF

Electronics Forum | Tue Jul 13 19:00:29 EDT 1999 | JohnW

Hi All, Does any one experienced the solder on gold finger after reflow. Its about 5 to 8 mils diameter . We'd clean the entire screen printer, mounter & reflow as well, but doesn't help much. Mr Kong..... Solder on gold is a age old


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