Electronics Forum | Mon Mar 03 10:39:19 EST 2003 | marys
How do I determine what the quality performance specifications are for my SMT equipment?
Electronics Forum | Mon Dec 15 11:28:26 EST 1997 | Mr. Paul R. Graham
I require a Template for an internal Solder Paste Stencil Specification. If any one has ANYTHING, could you please reply. Graham
Electronics Forum | Mon Mar 03 11:49:15 EST 2003 | msivigny
Hello marys, To determine the quality performance specification of your printers, dispensers or placement equipment, you must first know the operational accuracy and repeatability criteria from the equipment manufacturer. Only then can you determine
Electronics Forum | Fri Jan 23 18:03:06 EST 1998 | Steve Gregory
Paul, I've got a third-level ISO Stencil Specification procedure that I did at a past employer that I'll send you...it also deals with the DEK-265 printer (which is what we used) when I talk about frame sizes and image positioning, but you can edit i
Electronics Forum | Wed Dec 31 23:11:07 EST 1997 | Scott McKee
| I require a Template for an internal | Solder Paste Stencil Specification. | If any one has ANYTHING, could you please reply. | Graham My suggestion would be to contact your stencil manufacturers. They've seen it all and know more than most... Ask
Electronics Forum | Tue Jan 06 10:33:50 EST 1998 | Paul R. Graham
| | I require a Template for an internal | | Solder Paste Stencil Specification. | | If any one has ANYTHING, could you please reply. | | Graham | My suggestion would be to contact your stencil manufacturers. | They've seen it all and know more than
Electronics Forum | Mon Feb 23 22:15:32 EST 1998 | fxb
| Paul, | I've got a third-level ISO Stencil Specification procedure that I did at a past employer that I'll send you...it also deals with the DEK-265 printer (which is what we used) when I talk about frame sizes and image positioning, but you can ed
Electronics Forum | Tue Jan 30 08:21:02 EST 2007 | GS
Please who can help me? I am looking for fiducial (cross shape) mark (target mark? Swiss mark?..)specifications used when COB wire bonding on PCB laminate. Pad pitch should be 250umm may be 220umm?). Mainly need to know which are the tolerances
Electronics Forum | Tue Jan 30 17:58:49 EST 2007 | flipit
Hi, I would not be too concerned about what the shape of your wirebonding fiducial is. Cross, Square, Diamond, Circle, will all work well for you. I use a "+" and a diamond. Your machine magnification will be great, so don't make the fiducials to
Electronics Forum | Wed Jan 31 17:30:54 EST 2007 | GS
Thanks a lot flipit, I am not directly involved in this "problem" but is my friend that have his CM rejecting PCBs because it says the "+" mark (spokes lengths) are out of tolerances. It seams CM bonder's require tolerance +/- 0,05(? not sure). I d
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