Electronics Forum: .2.0 (Page 1 of 11)

Acceptance Criteria Ion Chromatography testing?

Electronics Forum | Thu May 31 21:45:48 EDT 2012 | davef

rsthompson ... if you're talking about bare boards IPC-5701, Users Guide for Cleanliness of Unpopulated PBC, Table 8 ||Bare board final surface finish Ions||Hot air solder level||OSP over copper||Gold over nickel Chloride||0.75 ug/cm^2||0.75 ug/cm^2

smt sizes

Electronics Forum | Mon Jan 03 09:10:46 EST 2005 | russ

That would be a 2012 (2.0mm x 1.2mm) in accordance with standardized naming convention.

Topaz files, information

Electronics Forum | Thu Mar 15 22:17:17 EDT 2012 | daniel26

AMS 2.0 contact assemblon its expensive but works great for our machines.

PCB Design

Electronics Forum | Wed Dec 21 20:41:49 EST 2016 | epcb2016

1.5mm pad is not so ok in practice. You may expand the size to 2.0mm.

Re: Aperture sizes for printing SMD adhesive

Electronics Forum | Mon Feb 22 12:04:15 EST 1999 | Dave F

| Please could you suggest a recommended aperture sizes for | printing of smd adhesives. Any recommendations on stencil thickness as well as stencil finish will be appreciated. | Mark: About the only rule of printing adhesives is: Keep it off the

Cpk Variables Control for Paste Printing

Electronics Forum | Thu Apr 04 16:38:51 EST 2002 | davef

Equipment companies like to talk about �accuracy� and �repeatability�. These measures provide limited information. Flaws of the measure aside, some printer companies have begun to report Cp. * DEK ELA: Cp = 1.33 @ �0.025mm * DEK 265: Cp = 1.6 @ �0.0

Solder Paste Flux corrosive?

Electronics Forum | Wed Sep 16 03:17:47 EDT 2009 | geb

The solder wire uses a ORL0 flux. The wire contains less flux at around 2.0-4.0%.

Topaz Cad2Cad

Electronics Forum | Tue May 16 01:23:10 EDT 2006 | Base

Try Assembl�on. The 2.0 version just came out so the 1.x versions are probably no longer available. I believe they start charging you for it now, but it won't be much since the previous versions were free. If you can manage to track down a 1.x versi

Searchin' For Tooling Pins

Electronics Forum | Tue Aug 04 08:29:06 EDT 1998 | Dave F

We are looking for source(s) for tooling pins: 1 Stainless steel pin 2 0.120" diameter, 0.250-0.375" long 3 Press fit

Why 50 mils in 0805 package instead of 40 mils.

Electronics Forum | Fri Oct 03 09:00:18 EDT 2003 | davef

EIA standard packages have a variety of L/W proportions. EIA||Dimension mm (LXW)||Proportion (L/W) 0201||0.6X0.3||2 0202||0.5X0.5||1 0303||0.8X0.8||1 0402||1.0X0.5||2 0504||1.25X1.0||1.25 ||1.4X1.4||1 0603||1.6X0.8||2 0805||2.0X1.25||1.6 1111||2.8X2

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