Electronics Forum: after (Page 631 of 656)

Re: Adapting Surface Mount IC's for Bread Boarding

Electronics Forum | Tue Apr 21 20:58:11 EDT 1998 | Steve Gregory

Mike wrote: ...I did buy "Surfboards" built for this purpose but they averaged about $5.oo a piece, and when your running 20 trainers, and they still have to be soldered in place. $5 a test is kinda high when evaluating a 32 cent chip...(snip) Hi

Re: DFM-Tool

Electronics Forum | Sun Apr 19 16:13:14 EDT 1998 | Steve Gregory

All, Does anyone know a good book, software, Check list etc. to analyze and develop the whole electronics assembly and manufacturing process ? I mean, not only SMD-process but also unit assembly and final assembly ? I assume that ulti

Re: Lost Components

Electronics Forum | Mon Apr 13 16:37:26 EDT 1998 | Steve Gregory

Wondering if anyone has information on percentage of components that we can expect to "lose" during our SMT process. We are new to SMT, using QUAD machines and feel we are losing to many parts during our process. We are spending a lot of tou

Re: PCB panellisation

Electronics Forum | Wed Apr 08 00:49:37 EDT 1998 | Steve Gregory

Well...I think we just about beat this one to death, but I'll go ahead and add a couple more points to "pro-score" camp...WITH the caveat that it HAS to be done right! Yes, I will say that I've had to deal with the wrong spec'd or crappy scor

Re: Screen printing the board from........

Electronics Forum | Thu Mar 05 23:52:26 EST 1998 | Ron Costa

Hi Ron, Your question really opens up a "Pandora's box", but when you say you're not able to print perfectly, what is it exactly that you mean? Is the print lacking volume? Is it mis-registered? Are you bridging? Also, what printers have you used

PCB Supplier Evaluation And Qualification

Electronics Forum | Wed Feb 25 09:22:53 EST 1998 | Earl Moon

PCB Fabrication Supplier Evaluation And Qualification Made Easier Supplier evaluation and qualification often is left to uninformed industry references or vague suggestions made by sales unprofessionals. This discussion is met to enhance a customer'

PCB Supplier Evaluation And Qualification

Electronics Forum | Wed Feb 25 09:21:05 EST 1998 | Earl Moon

PCB Fabrication Supplier Evaluation And Qualification Made Easier Supplier evaluation and qualification often is left to uninformed industry references or vague suggestions made by sales unprofessionals. This discussion is met to enhance a customer'

Re: STATISTICAL PROCESS CONTROL. 6-SIGMA

Electronics Forum | Wed Jan 14 14:36:29 EST 1998 | Mike Cox

Your questions would require volumes of information to answer completely. This is a readers digest version to help you get started volumes Don't rely on inspection as a process indicator of your quality and defect levels. Unfortunately Inspectio

Re: Flux splattering during reflow

Electronics Forum | Mon Jan 19 20:01:11 EST 1998 | Steve Gregory

We use no clean paste and sometimes experience flux splattering which gives spot on gold fingers. Need help in analize the cause. thx. Dominic, That is STILL a problem huh? It's a tough one to solve sometimes...especially when you have as

Why is NC the prefer process for BGA mounting? why not WS?

Electronics Forum | Tue Aug 21 21:39:19 EDT 2001 | davef

1) why is No-clean (NC) the preferred process, for BGA mounting by SMT? Probably the same reason NC is the preferred process for mounting non-area array SMT components. 2) why is water-soluble (WS) not a hot choice? There�s not reason not to use


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