Electronics Forum: 3mil (Page 1 of 7)

Pb Free Voids

Electronics Forum | Wed Feb 14 15:43:33 EST 2007 | CK the Flip

5/3 mil as in... 5 mils stepped down to 3 mils?

Re: 1 mil or 25 um trace width

Electronics Forum | Thu Apr 29 09:37:12 EDT 1999 | Dave F

Can anyone in this world produce such small PCB/PWB trace widths? Lots of theory so far, but have not found anyone yet who can do it in practice. Daniel: 2 mil lines with 3 mil spaces are pretty technical. Good luck. Dave F

Step down stencil

Electronics Forum | Sun Nov 22 05:41:55 EST 1998 | Daniel

Does any body know stencil manufacturer in states or south east asia for electroforming processes and step down from 5mil to 3mil. Thanks!

Re: Step down stencil

Electronics Forum | Sun Nov 22 17:54:08 EST 1998 | Larry Johnson

Does any body know stencil manufacturer in states or south east asia for electroforming processes and step down from 5mil to 3mil. Thanks! Any screen shop should be able to handle that task. It is failry common these days.

Re: Step down stencil

Electronics Forum | Tue Dec 01 05:21:16 EST 1998 | S.R.

Does any body know stencil manufacturer in states or south east asia for electroforming processes and step down from 5mil to 3mil. Thanks! Hello Look in web site www.suron.com maybe it can help you.

Lifted Lead

Electronics Forum | Tue Sep 14 06:08:46 EDT 2004 | sc

The general control on QFP fine-pitch coplanarity is +3mils. suggest to look at the re-use of thrown out component from SMT machine. If the component pack in std pack, then most probably the lifted is due to processing, not incoming as the packaging

QFN Rework

Electronics Forum | Fri May 23 08:51:23 EDT 2008 | bandjwet

Does anyone have any great ideas and suggestions for the rework of small package (5 x 7mm) QFNs with raised pads (3 mils off of the bottom of the package). IO count is 36. BWET

4791 Placement accuracy

Electronics Forum | Tue Apr 06 11:10:40 EDT 2010 | cuongtranquoc2002

No, the accuracy of chip shooter should be always as 3 mils tolerance. If for some reason, the tolrance is 4 mils, you should consider adjust your equipment. If your chip shooter is performing well, I would suggest that you measure the variation on t

SMT Heal Issue

Electronics Forum | Thu Jul 28 18:12:47 EDT 2011 | asksmt

Hi, what kind of issues i could get if the i do not provide heal properly in my footprint ? In my current design 0603 resistor package footprint heal is missing by 3 mils each side Please help

stepped stencils

Electronics Forum | Thu Feb 27 23:50:09 EST 2014 | ilatintj

I would like to speak with you. In many cases with our new COBRA 3.0....we have been able to help eliminate Steps 1-3 mils....would this be of support to you? Pls email me jv@interlatin.com.mx

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