Electronics Forum | Thu Apr 29 09:37:12 EDT 1999 | Dave F
| Can anyone in this world produce such small PCB/PWB trace widths? Lots of theory so far, but have not found anyone yet who can do it in practice. | Daniel: 2 mil lines with 3 mil spaces are pretty technical. Good luck. Dave F
Electronics Forum | Sun Nov 22 17:54:08 EST 1998 | Larry Johnson
| Does any body know stencil manufacturer in states or south east asia for electroforming processes and step down from 5mil to 3mil. | | Thanks! | Any screen shop should be able to handle that task. It is failry common these days.
Electronics Forum | Tue Sep 14 06:08:46 EDT 2004 | sc
The general control on QFP fine-pitch coplanarity is +3mils. suggest to look at the re-use of thrown out component from SMT machine. If the component pack in std pack, then most probably the lifted is due to processing, not incoming as the packaging
Electronics Forum | Tue Apr 06 11:10:40 EDT 2010 | cuongtranquoc2002
No, the accuracy of chip shooter should be always as 3 mils tolerance. If for some reason, the tolrance is 4 mils, you should consider adjust your equipment. If your chip shooter is performing well, I would suggest that you measure the variation on t