Electronics Forum | Wed Aug 24 09:03:44 EDT 2005 | PWH
Does anyone know of a company that cuts kapton masking to desired shape per Gerber Data for conformal coat masking applications? (Preferably Pacific Northwest Region).
Electronics Forum | Fri Sep 09 11:37:27 EDT 2005 | ???
Try home-plated the stencil apertures, and make "V" shape home-plated outside edges of two pads instead of between two pads.
Electronics Forum | Fri Sep 09 14:03:06 EDT 2005 | Mei
Nomorely the V-shape home-plated apertures look like two opening mouth facing each other. But this time just opposite way. And make 30% home-plated. Hope you can understand.
Electronics Forum | Sat Oct 29 04:26:24 EDT 2005 | dwensker
Thank you for info. Can you email detailes of CM that you think still has one in good shape with feeders to me at dwensker@roger.pl. Regards Darek
Electronics Forum | Thu Dec 08 19:18:19 EST 2005 | khp_armin
Please give us some ideas on some critical parameters in checking the solder paste shape, size & volume after Solder Paste Printing.
Electronics Forum | Wed Jan 04 02:54:25 EST 2006 | Slaine
Hi, Id like to see the photos if possible, you can tell a lot from cross sections and the shape of the crack if you have any. timlivesey@netscape.net
Electronics Forum | Thu Mar 16 10:04:41 EST 2006 | slthomas
"better gasketing, less dog-earing" I suppose gasketing could contribute but my assumption is that it's a function of better shearing action between the blade edge and the aperture wall. You get a more consistent shape on the top of the paste deposi
Electronics Forum | Wed Mar 29 10:07:58 EST 2006 | Slaine
where are your pear shaped balls located? :) you said about 10% of the balls have been affected are they mainly around the egde of the BGA or in the corners ect?
Electronics Forum | Tue Apr 25 12:01:17 EDT 2006 | daxman
Just thought I'd post and let you all know, SMT Research helped me identify the issue here. Turns out it's the outer moveable rail on the XY table. The clamp bracket brakes were in bad shape, and the outer rail was slipping.
Electronics Forum | Wed Apr 19 07:45:50 EDT 2006 | Carol Stirling
Sorry about that. I'd like to post a picture but doubt it's possible. Baseball cap = The pad solder reflows but the BGA ball and the pad don't reflow together in a continuous elliptical shape. Carol
