Electronics Forum: 031 (Page 1 of 6)

FPC PAD Design

Electronics Forum | Fri Sep 11 16:28:58 EDT 2020 | majdi4

Hello, Try this one : D = 0.31 L = 0.31 A = 0.2 Stencil thickness : 100 um

0.031 pcb bowing -- solutions?

Electronics Forum | Tue Aug 28 09:11:26 EDT 2012 | rway

Thank you for your reply. We will try your suggestions and keep you posted.

PCB outer dimensions

Electronics Forum | Mon Jan 21 18:11:35 EST 2008 | dyoungquist

0.031" radius is a diameter of 0.062" which is very tight (small) for a rounded corner. I would tend to agree with the board house that is can not be done. 0.031" is a standard thickness of PCB. I think it is very possible that your customer swapp

0.031 pcb bowing -- solutions?

Electronics Forum | Mon Aug 27 13:02:32 EDT 2012 | rway

We will look at the oven speed. We considered stiffeners but opted against that due to the risk of moving parts pre-reflow due to handling. 90 deg? I don't know. This may or may not help with the bowing. Considering there is little to no substra

If Not Gold Then What

Electronics Forum | Tue Aug 15 16:57:54 EDT 2000 | Doug Philbrick

In many threads here I have read and talked about Electroless Gold problems and have experienced my own problems with it. Love to hear what others are doing as a replacement. Is it Electroless tin, is it osp or is HASL good enough for .031 pitch BGA

Sale and service rep for LV9200

Electronics Forum | Mon Jul 25 16:03:44 EDT 2005 | pjc

August Technologies, http://www.augusttech.com Taiwan: 7F-9, No. 81, Shuei-Li Road Hsinchu, Taiwan 0300 Tel: +886 (0)3 516 9230 Fax: +886 (0)3 516 9231 Korea: KoMoFo Tower 4F #16-3, Sunae-dong, Bundang-gu Seongnam-si, Gyeonggi-do 463-825 Korea Tel

TOMBSTONE defect Redution suggestion.

Electronics Forum | Fri Sep 11 15:58:50 EDT 2020 | majdi4

You haven't communicated what thickness of stencil you are working with ... it's interesting to know..at first, you need to reduce the amount of CAB deposited because with 1X1 stencil aperture size you are depositing an amount important CAB .. so, I

Fine Pitch

Electronics Forum | Thu Nov 30 17:00:59 EST 2000 | Charles Morehouse

I am interested to know what people prefer for fine pitch packaging. Tape/Reel or Waffle tray for .031", .025", .020", .015" pitch components? What is the most robust packaging (i.e. fewer bent leads, etc.) Chuck

pwb warpage

Electronics Forum | Mon Feb 02 11:51:23 EST 2004 | prs

Hello, I'm working with Nelco 4000-13 material .031 thk and am experiencing some warping. the board is roughly 1" by 3" and the warping is in the long dimension. The grain on the panel is also in the long dimension. Any pointers or advice on contr


Electronics Forum | Fri Oct 19 07:27:09 EDT 2007 | fredc

I just looked in my MSC Industrial catalog and they have coils of shim stock which would be a hard temper in .031 thickness on Pg.1770. Also stainless sheets of cold drawn material .03 thick on page 1791.

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