Full Site - : wave solder graph output (Page 13 of 18)

Re: DPM-Rate for SMT pprocess

Electronics Forum | Wed Oct 07 06:19:30 EDT 1998 | Charles Stringer

| | | Does sombbody know what DPM rate a good and reliable SMT assembly line (incl. solder paste print, assembly and feflow soldering) has? | | | DPM is Defects per million, usually measured on components. We run a process consisting of small to medi

Re: White layer appearance on PCB

Electronics Forum | Thu Jan 28 15:53:12 EST 1999 | Dave F

| | Hello Netters, | | | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI

Lead Free ...

Electronics Forum | Mon Sep 06 10:21:10 EDT 2004 | pioneertechnology

Hi All We have been manufacturing lead free in the UK for about two years now in a fashion. Let me expalin. Two years ago we began to change over our wave solder machines to lead free process. We read all the articles and attended the seminars on

Re: White layer appearance on PCB

Electronics Forum | Thu Jan 28 16:29:03 EST 1999 | Tom B

Okay, Another question, if the soldermask in not cured, then it is washed will water ingress (from wash or ambient ) play havoc with capacitance or dielectric of PCB. I mean will my crystal and clock circuits start "Y2K'n" on me. OR will my PCB go

Re: White layer appearance on PCB

Electronics Forum | Thu Jan 28 17:31:20 EST 1999 | Earl Moon

| | | Hello Netters, | | | | | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that t

Re: No-Clean Paste Lab Test Evaluations

Electronics Forum | Sat Feb 14 19:35:51 EST 1998 | C. Lao

Mr Lao We have some specialist knowledge on this subject and offer both equipment and services for these tests. My first recommendation is that take coupons manufactured by your PC Fabricator and then samples at each manufacturing stage: Bare coupon

SPC for SMT

Electronics Forum | Fri Mar 07 08:47:45 EST 2003 | msivigny

Hello Peter, In reflow, running a profile and collecting thermal data does not necessarily make it easy to calculate and determine machine capability. On the contrary to your desires of simplifying the process, determining machine capability on an ov

Re: White layer appearance on PCB

Electronics Forum | Sun Jan 31 03:28:24 EST 1999 | Jeff Sanchez

| Hello Netters, | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI solde

First time Pick and Place Machine

Electronics Forum | Fri Jul 21 09:23:05 EDT 2017 | sumote

I am not going to give you any names of equipment manufacturers as I believe most people tend to recommend only what they are familiar with. I have my favorites as, likely, most everyone else does as well. What I will tell you is equally important.

In search of knowledge

Electronics Forum | Tue Oct 16 10:06:46 EDT 2012 | jackofallmasterofnone

Hello all, First off let me start by introducing myself. My name is Dan and I work for a contract manufacturer. During a job search I had heard from a previous co-worker that there was a packing job available at the facility where he now worked. I


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