Electronics Forum: viscosity in smt (Page 2 of 48)

Re: in need of smt book

Electronics Forum | Thu Oct 21 13:53:40 EDT 1999 | John Thorup

Jacob The most comprehensive book on soldering I have seen is Soldering In Electronics by R.J. Klein Wassing and available from Electrochemical Publications in the UK. www.elchempub.com Another is Solders and Soldering by Howard Manko from McGraw-Hil

Need to spec in smt prototype equipment

Electronics Forum | Wed May 13 16:43:31 EDT 1998 | PAUL OHAMA

Any ideas on what to buy? Only need to build surface mount protos, ability to rework. Is a rework station okay? Will subcontract production after design is proven.

Re: in need of smt book

Electronics Forum | Fri Oct 22 03:23:37 EDT 1999 | Brian

I agree with John, but Manko has also published 'Soldering Handbook for Printed Circuits and Surface Mounting' (van Nostrand Reinhold, a little more practical and less strong on the theory of his classic one, which is beginning to date (1st published

Bottomside smt falling off in wave in only voc-free flux

Electronics Forum | Mon Jun 14 11:44:10 EDT 1999 | Vince Gedgaudas

Has anyone had issues where bottomside double reflowed smt has fallen off in the wave when using voc-free flux? I have verified the hotter profile was not the issue by using an alcohol based flux with no problems.This voc-free flux is also not causin

large smt inductors moving in the reflow oven

Electronics Forum | Sat Feb 06 16:28:09 EST 2010 | mystkldy

I have some large ROHS SMT inductors that are moving during the reflow process. I have tried adding extra solder, gluing and doing both. I don't know what else to try, any suggestions?

large smt inductors moving in the reflow oven

Electronics Forum | Sun Feb 07 10:41:16 EST 2010 | davef

Makes us wonder how well the connections on the component match with the pads on the board.

large smt inductors moving in the reflow oven

Electronics Forum | Mon Feb 22 10:21:58 EST 2010 | mystkldy

We did the firt 2 with no luck.

large smt inductors moving in the reflow oven

Electronics Forum | Mon Feb 22 10:01:01 EST 2010 | jtsyeung

Since the inductor is electro-magnetic, that means the device is composite of coil and ferrite metal. The inductor inside the reflow oven meets with blower motors which close to the inductor and generate magnetic field. With such conditions, Lawren

Re: Need to spec in smt prototype equipment

Electronics Forum | Thu May 14 09:01:11 EDT 1998 | Robert Murphy

| Any ideas on what to buy? Only need to build surface mount protos, ability to rework. Is a rework station okay? | Will subcontract production after design is proven.

acceptable defect rates for smt process, in ppm.

Electronics Forum | Fri Jan 14 16:48:40 EST 2000 | Steve Thomas

O.K., folks, I know this is a loaded question, but I've been asked to find the answer, sooooo: What is an acceptable defect rate in ppm for a surface mount process, assuming that each component has the potential for one defect. This would include de


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