Electronics Forum | Wed Feb 24 11:36:06 EST 2010 | kruzon
Is there a simple way to create vision data for bga's. Our machine is a Fuji IP3. I have a bga with balls all over the place. Thanks -
Electronics Forum | Thu Feb 25 03:54:50 EST 2010 | andras
Hi, would you please send me the gerber of Z4P stencil? We've bougth it some weeks ago, but unfortunatelly the file is missing. Thanks: Andras
Electronics Forum | Thu Feb 25 04:10:33 EST 2010 | hsodan
zelflex@lpkf.si :-) They were always very helpful regards, Hrvoje
Electronics Forum | Wed Mar 10 16:22:23 EST 2010 | swag
Did you get it? I have this file if you need it.
Electronics Forum | Thu Mar 11 07:50:13 EST 2010 | andras
Hello, many thanks for the valuable help. The guys at LPKF really helpful, and they send me the gerber immediatelly. Regards: Andras
Electronics Forum | Thu Feb 25 10:30:21 EST 2010 | davef
It sounds like your poly dots are secreting something that affects coating thickness. Is this a function of the adhesive used by poly dot supplier?
Electronics Forum | Fri Feb 26 10:34:03 EST 2010 | kpm135
If I had to guess I'd say they're using a silicone based adhesive.
Electronics Forum | Fri Feb 26 10:42:56 EST 2010 | mleber
Your masking dots are a silicone adhesive. Contact the supplier and tell them you need an acrylic adhesive on the same dots. Normally same cost and lead time.
Electronics Forum | Fri Feb 26 15:41:19 EST 2010 | kpm135
sorry jdumont I didn't see your post until after I posted mine for some reason. If I had seen it first I wouldn't have posted because yours covered it.
Electronics Forum | Mon Mar 01 09:17:56 EST 2010 | duso02
Hey....I think it might be the silicone adhesive! LOL Yeah, that'll do it. We use simple Shercon paper dots. Work like a charm. No evidence of "de-wetting".
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