Electronics Forum | Fri Sep 17 13:24:27 EDT 2004 | Bob R.
I also agree with Russ - we use step stencils when we have to but generally try to avoid them because the print isn't as consistent as with a single thickness stencil. Many of our products are for harsh environments so we do a lot of thermal cycle a
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 | Fri Sep 17 14:30:06 EDT 2004 | russ
You are right, playing with apertures is how to ensure release. Making a stencil thinner or thicker is "playing with apertures" It all relates to aspect and area ratio calculations and what you need to do based upon the numbers you get. Russ
Electronics Forum | Fri Sep 17 09:55:16 EDT 2004 | soease
Hi russ, thanks for answers, I thought that playing with apertures was the solution if paste is able to lose from the screen with fine pitches. But I'll take in consideration all of your remarks for the next designs to be develloped.
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!
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.
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.
Electronics Forum | Sun Nov 22 10:05:37 EST 1998 | Christopher Lampron
| Does any body know stencil manufacturer in states or south east asia for electroforming processes and step down from 5mil to 3mil. | | Thanks! | Daniel, I do alot of work with Photoetch stencils in Massaschusetts. I do not have the Phone number h
Electronics Forum | Fri Sep 17 08:03:04 EDT 2004 | soease
Hi Simon, thanks for answering so fast. Well, our company is building several different products to monitor turbine activities (power generation and propulsion). So our boards are equipped with mixed technologies including minimelfs, 0402 chip resis
Electronics Forum | Wed Nov 27 16:11:23 EST 2002 | davef
In my haste to respond, I neglected to ask THE QUESTION. What is it about your current process that you would like to improve? While we're at it, tell us more about your: * Stencil * Paste * Printing process and set-up
