Electronics Forum: electronics (Page 1711 of 7929)

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Mon May 10 19:44:15 EDT 2004 | davef

Hi Gabriele Has the snow melted up there, yet? No, SMTA membership, while good in its own right, is not a prerequiste to ordering documents from EMPF. Select "order technical publications" here: http://www.empf.org/html/empfset.htm

Uneven thermal load in PCB design.

Electronics Forum | Mon Dec 16 10:31:21 EST 2002 | davef

Grant, On those 'dry pads', where does the solder paste end-up after soldering? On: * Pads * Component leads * Someplace else [Where?]

Uneven thermal load in PCB design.

Electronics Forum | Mon Dec 16 21:51:28 EST 2002 | grantp

Hi, It's on the pads. They look ok, but when you check the lead comes away from the solder. Regards, Grant Blackmagic Design

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.


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