Electronics Forum | Sat Mar 27 08:15:02 EST 2004 | davef
Via in pad is a designer's dream and an assembler's nightmare. Search the fine SMTnet Archives for previous discussions to get started. VIP, via-in-pad, or whatever tend to promote voiding within the via and certainly partially starved solder conne
Electronics Forum | Fri Mar 26 17:12:17 EST 2004 | ben
I have recently encountered a new pcb design with a very high density of components on either side of the pcb. One of the suggested "fixes" is to use the smt pads as vias i.e. the via will be drilled thorough the centre of the smt pad. My concern i
Electronics Forum | Mon Jun 28 11:51:36 EDT 1999 | Brian Wycoff
| | | | Dear guys, | | | | | | | | I have some problem on assembling micro-BGA with solder paste (63/37). The micro-BGA we assmeble is 0.75mm pitch and with 45 pin (solder bump is 96.5/3.5Ag). The stencil is a laser-cut stencil with 5 mil thicknes
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
Electronics Forum | Tue Mar 11 14:56:58 EDT 2014 | tcs
Hello SMTnet, I am seeking a small, low cost, SMT pick and place service provider in the SF bay area (prefer South bay) -Volume
Electronics Forum | Wed Mar 19 11:04:25 EDT 2014 | mmjm_1099
If interested we are midwest region and are very competitive in pricing. www.beiwisconsin.com
Electronics Forum | Tue Jan 18 20:31:10 EST 2000 | WDavidson
It makes a difference what the normalizer is. We calculate solder ppm and placement ppm separately for each assembly. Solder ppm = #solder defects*1E6/(Qty boards*#solder joints per board). For us this number is easily less than 50 and sometimes
Electronics Forum | Mon Jan 17 12:16:02 EST 2000 | Brian W.
My old company (CM) ran SMT to 50ppm including some very complex boards. We established the normalizer number by: #components + #solder joints. As was stated earlier, the ppm for any given product is the result of many factors. You may get differen
Electronics Forum | Wed Jan 10 04:38:05 EST 2018 | smtspareparts
Obviously the cost difference between only smt and smt+th is huge though TH only 1 components,they need different material,machines,tools and control methods,so if possible just use only smt process to assemble all components,but to verify if the usb
Electronics Forum | Tue Feb 06 16:13:55 EST 2001 | steves
I am looking for a mid-tier Contract Manufacturer in Brazil with SMT Assembly and Test capability. If anyone has any leads, please let me know. Flextronics, Solectron and Celestica have already declined...not enough $$ for them. Thanks Steve
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