Electronics Forum | Sat Feb 19 09:26:19 EST 2005 | davef
Your customer asks a reasonable question. How do you know that your: * Paste has not dried? * Stencil aperatures have not become clogged? * On and on ... Some agrue that printing is the most critical process and that it drives all down-stream failu
Electronics Forum | Tue Feb 22 21:50:18 EST 2005 | KEN
Probably: 1. Laytex reaction 2. Some other exposure at work or home FWIW: Cleaning anything with alcohol sucks. Alcohol toxicity could be your problem, but not like you think (hand contact). Consider inhillation as the exposure point. Work sho
Electronics Forum | Mon Feb 28 11:37:35 EST 2005 | PeteP
You may well find it is the powder used in the gloves. Distributors offer gloves without powder. Also beware of using hand products with Lanolin, Mineral oil, Rose Hip oil, etc around electronics assembly ... solderability issues may crop up and ta
Electronics Forum | Fri Mar 04 07:19:19 EST 2005 | sureguo
I guess it would be the work related reaction as there is many hazardous substance in the SMT process, such heavey metal, flame retardant, which are known for its hazard to enviroment and human health. actually, in our factory, maybe because of lack
Electronics Forum | Tue Mar 01 11:11:50 EST 2005 | spot
We use SRT. We still have machines that are over 5 years old and are functioning very well in the BGA, QFP and yes CSP area. The critical part is getting the right Air nozzle for the part size. Also the software has a auto-profile feature that wor
Electronics Forum | Tue Feb 22 12:42:53 EST 2005 | griinder
I was curious if anyone else has ever added water soluble flux to water soluble solder paste that is only a few days old, but is too dry to use in production. Also, are there any known bad side effects to this process. I have already searched the arc
Electronics Forum | Sun Feb 27 13:42:44 EST 2005 | pmdeuel
So true, We had paste flux supplied to us from Alpha metals. It was the same as used in the solder paste. The major problem we noted was the in ability to control the ratio of paste to flux resulting in lots of voids. When we mixed enough to get the
Electronics Forum | Tue Feb 22 17:45:45 EST 2005 | Austinj
Heller 1500 Convection Reflow Ovens are a five zone upper/lower reflow oven. Petlock currently has two listed with specs and pictures. Here's a link for more info. NOTE: I do not work or have any affiliation with PETLOCK http://www.petlock.com/used
Electronics Forum | Wed Feb 23 09:33:03 EST 2005 | rlackey
Hi, Does anyone have any experience of using electrically conductive adhesives, including info on the following? 1) Autodispensing/screen printing 2) Curing temps/profiles 3) Quality/conductivity of joint 4) Product recommendations Our customer w
Electronics Forum | Mon Feb 28 08:06:49 EST 2005 | davef
You'll be able to tell pretty soon if this will work. * Our bet is the epoxy will corrode the silver. * Another concern is that you're not fusing the silver to the copper. Why not ask the imm silver suppliers: * Alpha Level Silver [ http://www.al
