Electronics Forum: hussman (Page 2 of 16)

PCB Array Designs

Electronics Forum | Wed Jun 06 13:33:31 EDT 2007 | hussman

You may be JAX... My purchasing people send out for quotes from 8 to 12 different board manufactures from any where in the world. Each board mfger has different Laminate Sizes. So this makes things difficult. But wait, there's more. Now each boar

Vitronics Soltec Wave Problems

Electronics Forum | Thu Jun 07 09:14:48 EDT 2007 | hussman

Chip waves are supposed to be turbulant. You have 2 waves, correct? And you're talking about the first wave the board sees, right? What part is not soldering? SOT-23? Yes you should turn your nitro off when not running the wave.

Vitronics Soltec Wave Problems

Electronics Forum | Fri Jun 08 11:29:11 EDT 2007 | hussman

Turbulant wave will get into the close quarter areas of your SMDs.

Solder Paste Inspection

Electronics Forum | Mon Jun 11 10:13:26 EDT 2007 | hussman

I would also "nice to have" because of your process. Inspecting solder paste from a 2D point of view manually would not assure you quality if the paste is 75% off pad. Plus hand placing onto solder paste causes it's own set of problems which will c

Foam in the wash

Electronics Forum | Wed Jun 13 14:27:13 EDT 2007 | hussman

"I've always dreamed of becoming a golf club."

Compressor air line material

Electronics Forum | Sun Jun 24 16:06:49 EDT 2007 | hussman

Check your local building code first. A lot of people 'say' they use various types of pipes. If you're looking for a complete system, try Patton Sonic. They're piping section is at; http://pattonsinc.com/piping.htm

Minimum lead pitch to avoid bridging

Electronics Forum | Fri Jul 06 15:45:50 EDT 2007 | hussman

I have to agree with the fat green guy. And with Real Chunks too. You should also run a matte mask on your board. This will help in preventing shorts.

PPS caps degrading value

Electronics Forum | Mon Jul 09 11:56:39 EDT 2007 | hussman

Thermal shock. Be sure you do not jump more than 100 degrees C between your last pre-heat and wave.

J-STD-001 Par 4.2.2 Temperature and Humidity

Electronics Forum | Wed Jul 18 10:35:41 EDT 2007 | hussman

This seems like an odd request from an auditor. I can see an auditor requiring proof that you meet the J-Std, but verify? This would require you purposely damage product on a "before and after" scenario. As long as your manufacturing guideline say

SN100C wetting problems

Electronics Forum | Tue Jul 17 10:25:59 EDT 2007 | hussman

You want to know which flux will over come thermal mass problems? That's easy - none.


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