Electronics Forum | Mon Oct 15 23:40:43 EDT 2001 | kenbliss
One thing everyone missed is what is the goal of the company. To make money!!! So how many boards per week are you shipping now and how many would you be shipping if you had seperate stencils or a DISPENSER. With quality being number one always the
Electronics Forum | Wed Oct 10 20:35:17 EDT 2001 | djarvis
Stephen, I don't understand this at all mate. 1. If you don't place a QFP and get bridging across the bare pads, you were gonna get absolutely horrendous bridging if you did put one down. That points to poor printer set up or stencil design or both
Electronics Forum | Wed Oct 10 20:54:32 EDT 2001 | davef
We're with the Ozzy's earlier posting on this thread. We make similar products, like: * Phantom products that are mostly complete and then are configured to order by adding or subtracting a couple of parts and some jumpers. * Version products like y
Electronics Forum | Thu May 24 19:27:50 EDT 2007 | kevinjm
We have a similiar problem with kester em907, a pb free paste. You say that your AOI system picks up blocked apertures, do you mean that the printers own camera looks at the stencil and sees apertures blocked? Or, is it picking up insufficient paste
Electronics Forum | Tue Jul 27 07:18:44 EDT 2004 | Nippy
How does the HASL finish and stencil match ? I have seen ocasions on fine pitch devices where the HASL can protrude into the stencil aperture either pulling paste down on the snap off or completely blocking the aperture and getting no paste.
Electronics Forum | Fri Mar 03 14:08:55 EST 2000 | Michael Parker
Your best answer for determining cleaning method is to contact your stencil supplier and follow their recommendation. Periodic inspection of your apertures (using microscope, or minimum 10x magnification) would also be a good idea to make sure that g
Electronics Forum | Fri Mar 03 14:08:55 EST 2000 | Michael Parker
Your best answer for determining cleaning method is to contact your stencil supplier and follow their recommendation. Periodic inspection of your apertures (using microscope, or minimum 10x magnification) would also be a good idea to make sure that g
Electronics Forum | Tue Apr 20 20:10:16 EDT 2004 | Indy
Hi Everyone, I am trying to stencil print chipbonder. The problem I am having is with the cleaning of stencil. The apertures are gettting blocked and cleaning with alcohol is not helping. Could anyone suggest a better way of cleaning the stencil. I
Electronics Forum | Mon Mar 20 00:48:22 EST 2006 | pavel_murtishev
Good morning, In this case separation speed doesn�t affect print quality. Separation speed decrease makes print quality the same or worse. Apertures still remain blocked. Any ideas? Thanks. BR, Pavel
Electronics Forum | Tue Sep 14 02:46:17 EDT 2010 | grahamcooper22
Hi Gani, Looking at the pictures in the report it looks as if there is a thin coating of solder on the pcb pad....but it looks like the BGA sphere was barely in contact with the pad. This could be caused by insufficient solder paste on this pad...may
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