Electronics Forum: pdf (Page 3 of 87)

Fiducial Recognition

Electronics Forum | Wed Jun 13 01:01:10 EDT 2012 | isd_jwendell

I clean all fids with a fiberglass brush pencil so that I know there will be no rejects (it doesn't take too long). The problem is the machine lighting. My Essemtec machine uses a light ring (red LEDs) around the cam. Here's one of many documents th

Oxygen Levels in Lead-Free Reflow

Electronics Forum | Wed Oct 16 18:54:36 EDT 2002 | davef

There is not requirement for a low O2 atmosphere for no-lead soldering. There was quite a lot of work on lead-free profiles in the European IDEALS lead-free project and some info on this is available for download at: * http://www.lead-free.org/down

Interleaving paper for Immersion Silver PCBs

Electronics Forum | Thu Jan 17 20:09:43 EST 2008 | davef

"silver saver" paper It can be purchased as an industrial product: * corrosionvci.com/corrosion_control_vci_paper.htm * daubertcromwell.com/pdf/silverg.pdf * corrosionprotection.net/corrosion/proddetail.php?prod=silversaver48R * jamesdawson.com/Silv

0201

Electronics Forum | Tue Jun 19 22:10:02 EDT 2001 | davef

look at http://www.uic.com/wcms/images.nsf/(graphiclib)/mc-2447+process+parameters+article.pdf/$file/mc-2447+process+parameters+article.pdf

BCC Technology --- Placement, Rework, Reflow

Electronics Forum | Mon Mar 25 08:45:24 EST 2002 | davef

Not dumb at all. It's a 16 pin, 0.65mm plastic SMT package with pads along the package edges proprietary to Fujitsu. Look here: http://www.fme.fujitsu.com/products/pll/pdf/bccover.pdf

RISKS OF ACF BONDING

Electronics Forum | Mon Jul 22 08:27:51 EDT 2002 | davef

Look here; http://www.unitekeaprosystems.com/res_tech/pdf/HDHBCWAB.pdf ACF Bonding. Anisotropic Conductive Film / Anisotropic Conductive Foil Bonding.

Cleaning SMD Adhesives

Electronics Forum | Tue Jul 23 21:22:10 EDT 2002 | davef

http://www.petroferm.com/PTF-053/pdf/tds/petroferm/hydrexactds01-01.pdf ... expect that we use a spatula and stencil wipes [JNJ???] to prep the stencil before cleaning.

Black pad defect

Electronics Forum | Thu Feb 13 09:34:33 EST 2003 | genny

Did it take you to the magazine website? Just scroll down to where it says magazine on the left side, choose past issues and pick January. I think it was the featured article. Or try this to go right to that article. http://www.circuitsassembly.com

SMT Component Tape Standards

Electronics Forum | Wed Nov 26 06:39:06 EST 2003 | stefwitt

you could be using the info from a component vendor http://www.kemet.com/kemet/web/homepage/kechome.nsf/vapubfilesname/F3102GTaCerPkg.pdf/$file/F3102GTaCerPkg.pdf

BGA rework

Electronics Forum | Fri Apr 23 03:02:46 EDT 2004 | Nick Prince

Everyones opinions will differ as to which is the best. Most people will recommend the systems they bought, fiar enough I susppose. Here is the best value system on the market, you will need to shop around. http://www.cooperhandtools.com/europe/elec


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