Electronics Forum: closer (Page 1 of 27)

Wave soldering SMT component spacing

Electronics Forum | Thu Sep 12 18:54:21 EDT 2002 | scottefiske

PTH to SMT spacing should be 80-100 thous. any closer will result in bridging. Scott

Stress induced during V-score depaneling

Electronics Forum | Tue Jun 14 17:21:46 EDT 2011 | isd_jwendell

I use a pizza cutter with parts closer than that, but they are small-ish (

Reflow for the first time

Electronics Forum | Wed Mar 15 12:31:39 EDT 2017 | slthomas

Your fixture is pulling too much heat from the assembly. I'd push the TAL to closer to 90.

Solder paste for RF boards

Electronics Forum | Mon Apr 15 18:58:10 EDT 2002 | davef

Problems using NC in RF circuits are peculiar. Depending on the situation [ie, circuit layout, frequency of use, processes used, materials, and what not], a particular NC flux may not work with a RF circuit. Various NC fluxes leave different levels

Melted BGA part

Electronics Forum | Thu Sep 15 09:31:02 EDT 2016 | ladmo1

While removing one part, another part - BGA part - several components away, actually melted on one corner - you can see the plastic body of the part oozing out around one corner between the solder balls. Several of the solder balls on the one corner

dpmo

Electronics Forum | Tue May 09 09:49:15 EDT 2000 | paul richardson

Can someone give me DPMO numbers that are considered "world class" (if there is such a number) for... a)solder joints b)placement I appreciate any input that will get me closer to a number that will appease the bosses AND be realistic.

The ever-expanding reference library

Electronics Forum | Thu Feb 01 21:17:02 EST 2001 | davef

I stand corrected. Juran is closer to 2 1/2" thick and has 48 chapters. The scary part ... Al "no controlling legal authority" "I invented the internet" Gore wrote one of the chapters.

Re: 0603 component drift

Electronics Forum | Tue Jun 20 02:51:52 EDT 2000 | Leland Woodall

Gary, We've experienced the same problem in the past, and found that moving the stencil apertures closer together solved the dilemma. This was a much easier solution than having to redesign the PWB. Leland

AOI, Quality and SPC

Electronics Forum | Tue Mar 04 15:34:31 EST 2003 | ROHAN SARKER

Well very interesting...i think a possible solution can be data acquisition via Matlab and then carrying the necessary operations.Can u give details of your works-----I can then get closer to a possible solution.

Testing rechargables

Electronics Forum | Wed Jul 30 11:06:57 EDT 2003 | Dale

I have 2 rechargable digital camera batteries. One came with it and one was bought some time later. Is there a way to test them to see which has the least wear? I want to find out which is closer to it's demise and which has the most charges left in

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