Electronics Forum | Tue Jun 03 17:53:21 EDT 2008 | pms
Anyone out there using this system ? We have been using the older DEK Vectra system. I don't like it, never did, but do like the small storage footprint, and are stencil supplier is showing signs that this system is gonna be obselete in the near fut
Electronics Forum | Tue Jul 02 16:04:08 EDT 2002 | russ
We normally disregard what the "tech" sheets say. A lot of it has to do with your printer settings, prints per hour, placement time, stencil cleaning procedures etc... Just another wrench to throw in, We have noticed lot to lot paste differences al
Electronics Forum | Tue Apr 20 20:33:38 EDT 2004 | davef
You're correct, alcohol can cure or cause reactions in epoxies. While you're waiting for others to reply: * Read your glue supplier's application notes. They often discuss cleaning procedures and materials. * Consider searching the fine SMTnet Arch
Electronics Forum | Wed Nov 09 07:16:44 EST 2005 | pjc
Besides IPA, here is a list of links to cleaning agent suppliers besides Zestron, Vigon is a very good cleaning agent: http://www.envirosense.com/ http://www.kyzen.com/ http://www.petroferm.com/ If you give them your material mfr. and part numbe
Electronics Forum | Wed Mar 27 16:54:47 EST 2002 | davef
STARTING RANGES * Pressure � 1 pound/inch of blade (metal); 1.6-3 pound/inch (plastic) * Speed - 0.5 to 3 inch per sec [for standard pitch]; 0.5 to 1 inch per sec [for fine pitch] Your paste supplier�s recommendation is a good place to start. * Sepa
Electronics Forum | Fri Sep 17 07:44:41 EDT 2004 | Simon Uk
Yes, i have used and experienced problems with step stencils, but these were mainly to do with the communication of the requirements for the suppier. Best plan is to talk to your stencil supplier and get them to make the suggestions on what works bes
Electronics Forum | Fri Sep 17 23:11:30 EDT 2004 | KEN
I have an application that uses 0201 devices coupled with ceramic column grid arrays. The coplanarity of the balls is specified not to exceed 7 mils! 4 mil foil for 0201's with a selective buildup to 7mil for the ceramic. Bloody designers! Take y
Electronics Forum | Mon Feb 18 09:39:21 EST 2008 | swag
We do like Chunks says only a little bit different. Our stencil supplier e-mails us a "confirmation PDF" before processing any order. If it's a simple board, I just make sure all the apertures are there by comparing to board. If it's got a ton of
Electronics Forum | Thu Mar 29 11:36:49 EST 2001 | Rob Fischer
Our company and most others do no specify any specific chemistry but offer equipment with configurations for running the best chemistry based on your application. Listed in one of Mike Konrad's postings are the contacts for chemistry. Ease of maint
Electronics Forum | Thu Sep 12 11:26:11 EDT 2002 | scottefiske
CK, If joints have been validated prior to ICT (under BGA Scope), more often than not repeatable joint fractures are due to undo stress being placed on the component during ICT test. Verify ICT probes and fixture. If after proving out fixture/pin com
