Electronics Forum: tenth (Page 1 of 2)

Re: reworking BGAs

Electronics Forum | Tue Jun 06 11:31:38 EDT 2000 | Neeta J. Chudasama

Mailing Address:(Preferred) Neeta J. Chudasama PEMSTAR 2020, south tenth st. San jose, ca-95112 txs.

PCB Type

Electronics Forum | Wed Jun 21 09:21:37 EDT 2006 | don dawson

I've been building boards for a long time and have never heard of anyone using electrolytic silver. Immersion silver would be 8-18 microinches thick. Plated silver would be significantly thicker (min a couple tenths - .0002" and up). So you may be ab

Share info for Six sigma - BB

Electronics Forum | Wed Feb 28 19:59:43 EST 2001 | davef

Wowzer, there's tons of hits on the net for "six sigma BB". Six sigma stuff gives about one tenth the hits of "Total Quality Management". Hummm. They give these five day training courses on histograms, parento charts, and whatnot to get a BB. Co

Minimizing Board Warpage During Reflow

Electronics Forum | Tue Jun 02 20:26:17 EDT 1998 | Anthony

Does anybody know if a contraption exists that will minimize a PCB's tendency to become slightly bent after reflow? We have a new product that we're planning to assemble in a couple of months. The board is 9.7" by 13.4" and it is imperitive that we

Used Equipment Support (Registration?)

Electronics Forum | Thu Oct 31 10:14:53 EST 2002 | cyber_wolf

Sorry if I offend anyone, but service and maintenance contracts are extortion. You will get waaaay overcharged for something that any decent tech with experience should be able to do for you.(For a tenth of the cost) I don't care what anyone says.I

Standard of PCB Bow and Twist in Incoming Inspecion

Electronics Forum | Thu Feb 27 12:27:10 EST 2003 | stevel

Hi all, We got some bare pwb in our incoming inspecion looked really wrapped. The maximum twist of the pwb we messured is 0.056inch by following the method in IPC-TM-650 2.4.22 C. (The diagonal size of our pwb is 7.5inch) According to the IPC standa

cracked capacitors at SMT 1&2

Electronics Forum | Thu Oct 21 04:21:55 EDT 2004 | siverts

Have been through this before and we resolved our problem as follows: 1.Make sure that the length of your board support pins on Your HSP is correct. On that machine the board support pins depends on the board thickness (+ - some tenth's of a mm). It'

Black Pad Other Plagues Of ENIG

Electronics Forum | Fri Dec 29 16:05:56 EST 2000 | Dave F

I don't know how I ended-up reading a current trade journal, when I have a stack of intentions behind my desk a foot and a half tall, leaning like a paper Tower of Pisa threatening to avalanche itself onto the underfill materials study, a meager one

Re: Minimizing Board Warpage During Reflow

Electronics Forum | Thu Jun 11 23:35:40 EDT 1998 | Scott McKee

Does anybody know if a contraption exists that will minimize a PCB's tendency to become slightly bent after reflow? We have a new product that we're planning to assemble in a couple of months. The board is 9.7" by 13.4" and it is imperitive that

PACE TF1500 or 1700 BGA Rework feedback

Electronics Forum | Fri Feb 24 10:08:16 EST 2006 | russ

What happens is: we generate a profile that works and it is fine. however, If we run this profile continously say for an ECO upgrade or something where we are not just doing 1 or 2 we find that as we continue on the profile gets hotter and hotter i

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