Full Site - : pcba warpage factor (Page 10 of 14)

Boards getting

Electronics Forum | Fri Aug 12 22:10:24 EDT 2005 | Mika

I agree with all the prior postings! But I have some additional thoughts about this. If there is a build up of moistures (% humidity) inside the pcb; before you reflow the pcba; then you will have the result out of the oven, just as you described. My

Cleaning of PCBA's

Electronics Forum | Thu Apr 14 13:10:49 EDT 2005 | Shean Dalton

Hi John, A primary consideration is the type of flux you are using. If it's water soluble (organic acid) then cleaning is highly recommended. Any other flux that fails the copper mirror test, we'd strongly recommend cleaning. Passing the copper m

Re: CPk using glass slugs?

Electronics Forum | Thu Feb 25 22:01:52 EST 1999 | Chris G.

| Read an earlier thread about using glass slugs to determine placement CPk. Can it actually be done this way? What's the procedure? Be interesting to know 'cause if it's feasible, I'd probably get myself a kit. None of us here are stat's experts

Re: PCB Warping.

Electronics Forum | Wed Mar 18 09:03:57 EST 1998 | Earl Moon

| Problem occurs because the glass transition temp for FR4 is lower than reflow temperature. Our company wrote an article which was printed in SMT magazine some years ago | that deals with this exact subject. Best way to deal with this is to use a ce

ICT bare board

Electronics Forum | Mon Mar 12 08:06:44 EDT 2007 | davef

Q1.� is it mondatory to test all components and paths in the PCBA; and check all soldering joints? A1. Nothing is mandatory. You do ICT to prove some component functionality and check manufacturing process. ICT test coverage is driven by factors i

Re: Board Warp And Twist

Electronics Forum | Thu Aug 10 13:12:10 EDT 2000 | Bob Willis

You may care to review the following from my Circuits Assembly page on line. "HOW FLAT IS FLAT AND DO WE NEED FLAT CIRCUIT BOARD, YES WE DO ? As production problems go there is one that keeps reoccurring time and time again. The blame is usually di

Re: T sub g

Electronics Forum | Thu Jun 25 14:41:07 EDT 1998 | Earl Moon

| Alright gentlemen and ladies of the forum, I again seek knowlage on what is probably a well known fact. I have spent a good part of the morning with various IPC standards and weighty tomes such as the Electronic Packaging and Interconnection Handb


pcba warpage factor searches for Companies, Equipment, Machines, Suppliers & Information

High Throughput Reflow Oven

Wave Soldering 101 Training Course
Gordon Brothers October 2-30, 2024 Auction

Software programs for SMT placement and AOI Inspection machines from CAD or Gerber.
Circuit Board, PCB Assembly & electronics manufacturing service provider

Software for SMT placement & AOI - Free Download.
SMTAI 2024 - SMTA International

World's Best Reflow Oven Customizable for Unique Applications
PCB Handling with CE

Smt Feeder repair service centers in Europe, North, South America
design with ease with Win Source obselete parts and supplies

"回流焊炉"