Process for via fill

Printing – Stenciling – Processes

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

101126, B41M 112

Patent

active

059271930

ABSTRACT:
An apparatus and method is provided for vacuum screen printing a greensheet having vias and both vias and open areas whereby vacuum leakage in the apparatus is minimized and avoids bowing of the screen over the open area of the greensheet. An interposer apparatus is provided comprising at least two layers having vertical through openings in registration with the via openings of the greensheet and screen. The interposer also comprises vertical through openings communicating with the open area of the greensheet and with vent channels of the interposer. A porous membrane is also used either alone or in conjunction with the interposer to provide enhanced screening results.

REFERENCES:
patent: 3486441 (1969-12-01), Hillman et al.
patent: 3769908 (1973-11-01), Griffin
patent: 4068994 (1978-01-01), Cadwallader et al.
patent: 4084506 (1978-04-01), Nakatani
patent: 4173928 (1979-11-01), Mitter
patent: 4784310 (1988-11-01), Metzger et al.
patent: 4803110 (1989-02-01), Ahn et al.
patent: 4902371 (1990-02-01), Andris et al.
patent: 4964335 (1990-10-01), Klemm
patent: 5003870 (1991-04-01), Isaak
patent: 5195434 (1993-03-01), Hoffman
patent: 5249520 (1993-10-01), Andris et al.
patent: 5308645 (1994-05-01), Zachman et al.
patent: 5323701 (1994-06-01), Sommer
patent: 5332439 (1994-07-01), Watanabe et al.
patent: 5394796 (1995-03-01), Jones et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for via fill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for via fill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for via fill will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-866946

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.