Electronics Forum: phosphorus and analysis (Page 1 of 8)

Re: BGA and Gold Boards

Electronics Forum | Thu Jun 25 09:53:04 EDT 1998 | Earl Moon

| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | Mike, | You

Re: Siemens HS50 and F5 and S25

Electronics Forum | Wed Dec 06 23:12:09 EST 2000 | Brad

Chris, Have you considered Fuji? The robustness of Fuji is proven. I have recently done floor space analysis and cost per placement/sqr foot studies. I have also performed ROI studies on these machines. The new CP7 machine from Fuji outperforms th

Re: BGA and Gold Boards

Electronics Forum | Fri Jun 19 13:40:25 EDT 1998 | Terry Burnette

| Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | Mike There has been a

Imm Silver and Voiding

Electronics Forum | Tue Jun 27 12:12:05 EDT 2006 | GMan

Yes it does seem like a plating issue and analysis is being done. Thank you for your inputs.

SPC and Wave

Electronics Forum | Thu Jul 14 11:52:16 EDT 2005 | davef

Sure you can use SPC charting on the wave setup parameters to warn of impending problems. Examples of useful points of analysis are: * Dwell * Temperature * Pot analysis Certainly there's a range of other process controls that could be monitored.

TO99 age and reliability

Electronics Forum | Thu Jan 25 13:57:48 EST 2001 | davef

Interesting. I'd start with the "Help Desk" at the Reliability Analysis Center [http://rac.iitri.org/]. Please get back with your findings.

SERA and ROSA

Electronics Forum | Fri Nov 05 16:00:22 EST 1999 | Jeff Kennedy

Anyone have information on the ROSA Technique? It is a derivative of the SERA analysis for solder-ability on pads, (they are not italian sisters)I belive the techniques were developed by Rockwell and Motorola. thanks in advance. JKK

0402 resistors and capacitors

Electronics Forum | Tue Oct 02 07:23:37 EDT 2001 | cath

Has anyone caried out a DPM analysis on these components. I would be interested to know the defect rates and other assoc. placement issues as we have never placed them before. Thanks, cath

PFMEA and SPC/Cpk program

Electronics Forum | Thu Mar 02 14:04:30 EST 2006 | amol_kane

do u mean program as in software? Minitab can do all the basic statistical analysis for your data and give you Cp, Cpk Values. The Cp and Cpk values are derived from estimates from the data (hence necessary to have Confidence Intervals). Regards, Am

PFMEA and SPC/Cpk program

Electronics Forum | Tue Mar 07 11:13:04 EST 2006 | Brian

Air Academy Associates has a nice SPC package that has the PFMEA calculations built in to it. It also does Cp/Cpk/regression analysis, MSA, et al.You can combine it with a reaally user friendly DOE software for about $250. Both use Excel. Brian

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