Electronics Forum: how often (Page 1 of 45)

how to handle solder paste

Electronics Forum | Sat Nov 08 07:05:12 EST 2008 | davef

Often, your solder paste supplier provides guideline on handling their solder paste. For instance: http://www.aimsolder.com/techarticles/tech%20sheet%20paste%20handling.pdf We have no relationship, nor receive benefit from the company referenced ab

MQFP soldering issues - how can I improve?

Electronics Forum | Mon Aug 22 06:30:59 EDT 2011 | janz

very often toes on the QFP packages are exposed to base material and during time they oxidize. That is why you can have problem with solder fillet. Most important is heel fillet. Regarding your misalignment of IC if this is repeatable check your pl

how to prenvent flux risidue in the blind vias.

Electronics Forum | Mon Feb 19 22:56:20 EST 2007 | davef

Russ We agree with your comments on plugging from one side only. But... We believe that it IS possible to trap process chemicals [technically, not flux] in a blind [or any other] via. This can be done by plating the via closed, rather than pluggi

Re: how to overcome tolerance in automatic alignment

Electronics Forum | Sun Sep 12 08:20:04 EDT 1999 | se

| | | | hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the

how can i id smt components that are marked with codes ?

Electronics Forum | Mon Dec 08 11:52:30 EST 1997 | j martin

part of my job function is to id all component requirements for our company. quite often i run into smt components that have mfr codes and not actual component part numbers. does anyone out there know of a way to id these parts.

Re: how can i id smt components that are marked with codes ?

Electronics Forum | Mon Dec 22 02:47:53 EST 1997 | jerdog

what you can do is call the manufacture and get a discription. | part of my job function is to id all component requirements | for our company. quite often i run into smt components | that have mfr codes and not actual component part numbers. | does

how to solder manganin 0.05mm manganin wire to a copper plate

Electronics Forum | Thu Jan 29 09:18:36 EST 2015 | davef

Nichrome, manganin, phosphor bronze etc are easy to solder ... the hard part is removing the corrosion * Manganin: 86% copper, 12% manganese, 2% nickel. Often, it's used in making cryogenic measurements, due to its low heat loss. * Select a flux for

Dross Removal

Electronics Forum | Tue Dec 12 07:01:45 EST 2000 | Chris Betlejewski

Does anybody know how often you should scrape the dross off the solder pot? What happens if too much dross is left? How often should the solder pot be cleaned?

Who is responsible for backing up programs on machines?

Electronics Forum | Fri Jan 05 12:27:06 EST 2007 | james

Just wondering who is responsible to backup programs at your facility? and how often?

No Go Gauge for AOI?

Electronics Forum | Fri May 29 18:40:40 EDT 2015 | bigdaddysoy9

Hello, Do you use No Go gauges at AOI? If so, how often? Every changeover, etc.?

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