Full Site - : 2002.12 (Page 10 of 35)

Uneven thermal load in PCB design.

Electronics Forum | Tue Dec 17 18:37:18 EST 2002 | davef

As a starting point, consider that these component leads may not be getting hot enough. Measure the temperature profile on the leads that do not solder well to be sure: * Heating and cooling ramps are within the paste supplier's recommendations. * C

Walkmen In Assembly Area

Electronics Forum | Mon Dec 09 15:33:18 EST 2002 | davef

I just returned from visiting a nice assembly shop. Virtually every person in touch labor was wearing headphones and listening to a "walkman". We don't permit use of personal gear on the line that for a variety of reasons. What's your practice and

Walkmen In Assembly Area

Electronics Forum | Wed Dec 11 14:39:10 EST 2002 | Claude_Couture

I think it's a question of how boring and repetitive a job is. also, I seem to remember background music in most office environment improves productivity, and that there a special music programs that adapts music styles for different period of the da

Walkmen In Assembly Area

Electronics Forum | Thu Dec 12 11:47:59 EST 2002 | MA/NY DDave

Hi Excellent. You are right that many areas due to ESD or cleanliness requirements would not be appropriate for Walkmans, personal CD players and such. YiE, MA/NY DDave

Walkmen In Assembly Area

Electronics Forum | Fri Dec 13 10:50:53 EST 2002 | slthomas

Hmmmmmm, one part per beat, per operator. Consider using your Radial lead inserter as your canned drummer.

Walkmen In Assembly Area

Electronics Forum | Tue Dec 31 02:11:04 EST 2002 | MA/NY DDave

Hi This has been an interesting topic. I agree and I remember an older guy or two, some of which I knew, who agreed that common sense isn't exactly common place. The idea always drove me crazy, for a while. YiE, MA/NY DDave

Connector leads plating

Electronics Forum | Tue Dec 10 16:30:44 EST 2002 | Randy Villeneuve

Tin is pretty standard. I would doubt your leads are only Nickel plated as Nickel will oxidize very quickly.

Connector leads plating

Electronics Forum | Tue Dec 10 22:18:32 EST 2002 | davef

Randy's correct. If you were soldering to nickel with WS609, you would be complaining about non-wetting, not lumpy solder flow.

Connector leads plating

Electronics Forum | Wed Dec 11 09:41:26 EST 2002 | davef

I'd guess that you need to sit at your current 216-218*C peak for that 5 to 10 seconds that I mentioned earlier. Increasing your peak is the easiest way to do that, as you say.

Chain Cleaning

Electronics Forum | Wed Dec 11 12:43:03 EST 2002 | kerryn

We use our ultrasonic stencil cleaner. Before we change the wash solution, we clean pallets, chains, fingers, etc. It does a good job and takes only a few minutes.


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