Electronics Forum: index (Page 1169 of 7890)

Re: 0603 Tombstoning

Electronics Forum | Wed Feb 23 21:38:26 EST 2000 | Dave F

Mike: I'm with you. The only variable is the component. Look for corrosion, uneven plating, or crud on one of the end-caps. Good luck. Dave F

Re: 0603 Tombstoning

Electronics Forum | Thu Feb 24 11:33:10 EST 2000 | Michael Parker

Thanks to all who responded. I am tending to believe oxidation is the root cause. I will be contacting the supplier to get definitive answer. Mike

Placement Defect Rate Benchmark

Electronics Forum | Wed Feb 23 16:25:33 EST 2000 | John

We are using a glue and wave solder process for primarily chip components. Our products do not use any fine pitch components. What would an acceptable benchmark for the placement defect rate be? 50 DPMO? 100 DPMO? 200 DPMO? Thanks in advance,

Wear resistance PCB finishing

Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.

Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni

Re: Stencil printers, what's really out there?

Electronics Forum | Tue Feb 22 17:03:48 EST 2000 | Chris

Dek 249 and Dek 260 models use to have fiducial recognition where table would adjust to the stencil. However, I would still recomend you buy an inline model because the change over will be much faster. Probably 10 times faster.

Cure/Reflow Profile

Electronics Forum | Tue Feb 22 10:45:56 EST 2000 | Sal

Guys, Can I cure adhesive and solder paste in a single operation ? Currently running a double-sided product, paste on one side and glue on the other, Management (YUK!!!) want to run this product simultaenously in the convection oven using the reflo

Re: Cure/Reflow Profile

Electronics Forum | Wed Feb 23 08:42:28 EST 2000 | Dave F

We had a similar thread a couple of weeks ago: Reflow glue and past. - Charlie 12:36:28 02/08/2000

unidentified component

Electronics Forum | Sat Feb 19 16:55:41 EST 2000 | cedric conjat

trying to identify faulty component seems to be a zener need to find the parameters PEC 5KE36CA do you know a database which could give the figures do you know the manufacturer (PEC)

Re: unidentified component

Electronics Forum | Mon Feb 28 21:13:53 EST 2000 | Pat Copeland

Type in the part number at digikey.com parts search. Leave out the PEC and you will find three parts. One will direct you to the General Semiconductor site. This should help

Re: PCB and component handling guidelines

Electronics Forum | Wed Feb 23 18:57:58 EST 2000 | Mike Vina

I don't know if this is the real answer you are looking for, but the EIA-625 and EIA-583 standards may provide you with the depth. http://www.jedecstandards.com/


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