Electronics Forum | Tue Dec 17 20:25:13 EST 2002 | iman
Check : 1) design aspect ratio / are ratio required to fabricate the stencil you r using. 2) check if the stencil maker is using your checked aspect ratio / area ratio? if not the same, what are they using? any QA report confirming actual dimension
Electronics Forum | Wed Feb 26 13:15:52 EST 2003 | Mike Konrad
The specific answer depends on what your specific application includes. #1: What are you removing? (solder paste, adhesives) #2: What are you cleaning? (stencils, screens, misprints, pallets) #3: What type of machine are you using? (Spray-in
Electronics Forum | Tue Jul 01 18:36:06 EDT 2003 | Matt Kehoe
I am trying to get opinions about a situation that we are discussing with a vendor/customer. While not a technical issue it has caused some confusion and I need some opinions to help settle the debate. We are a service bureau who receives stencil fi
Electronics Forum | Wed Feb 09 21:41:49 EST 2005 | Grant
Hi, We have been running the same stencils for about a year, 5 thou thick, 1-mm pitch BGA's and every-things been ok, but then suddenly over the last week, 2 different products have had paste release issues with the BGA. It's odd because nothings c
Electronics Forum | Mon Apr 14 19:26:35 EDT 2008 | diesel_1t
Update: Recently, we ran a (old) product on which they made a new stencil, appertures 1-1 on 0603. As soon as they began to run, tombstones appear. I went to trashcan to rescue old stencil, and noticed that pads came with a "c" shape reduction, I as
Electronics Forum | Wed Aug 26 12:06:44 EDT 2009 | clampron
Good Morning, I have been struggling with this part for some time now. I have to agree that whoever designed this part, did not have to manufacture with it. We have advanced to a point where they have a acceptable yield but I believe that will be hi
Electronics Forum | Sun Sep 25 20:20:22 EDT 2011 | johnyq
We recently aquired an old MPM-AP25 stencil printer that printed paste with a large error (about .060 inches). I concluded camera alignment to be the cause but was surprised by the magnitude. I found the camera beam splitter prism misaligned and loos
Electronics Forum | Tue Oct 28 17:15:46 EDT 2014 | grayboard
Hello, I am looking into the use of a Samtec SEAM-50-02.0-L-10-2-A-GP-K-TR on a board. Is anyone around who has experience with this component? Specifically, we are looking for design advice for stenciling and soldering. The component is a sold
Electronics Forum | Mon Feb 19 11:36:39 EST 2001 | billschreiber
Hello Mark, I wish it were that simple so I could direct you to a particular manufacturer and stencil cleaner model. Unfortunately, there are several issues complicating the process of cleaning all these applications in one machine. First and fore
Electronics Forum | Wed Sep 22 21:12:16 EDT 1999 | se
| | | | My stencil thickness is 6 mil and we got qfp's with fine pitch. | | | | how many percent should i reduce my stencil aperture using a 6 mil stencil for 0.5 mm pitch and 0.4 mm pitch ? | | | | | | | | thanks | | | | | | | We use 6 mil lasercu
