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Identifying Piece Scrap on Multi-image Panels Making Test Fails yet not Distorting nor Contaminating Panels

IP.com Disclosure Number: IPCOM000108415D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 52K

Publishing Venue

IBM

Related People

Young, JJ: AUTHOR

Abstract

Disclosed is a device that will identify both sides of scrap panels and/or piece scrap on multi-image panels making them visually identifiable and failures at test with no distortion and without contaminating the panel surfaces.

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Identifying Piece Scrap on Multi-image Panels Making Test Fails yet not Distorting nor Contaminating Panels

      Disclosed is a device that will identify both sides of scrap
panels and/or piece scrap on multi-image panels making them visually
identifiable and failures at test with no distortion and without
contaminating the panel surfaces.

      A set of metal dies that has a protruding "X" machines on the
surface on one end and a flat surface on the other end are mounted in
a press, one die on the top and one die on the bottom.  The dies
are mounted in such a way as to have each "X" opposite the flat on
the opposing die (see Figure).  With a raw printed circuit board
mounted between the dies and the press actuated, the dies come
together and impress an "X" in each side of the printed circuit
board. Since each "X" pressed against a flat on the opposing die,
with a printed circuit board in between, both the top and bottom
surfaces of the printed circuit board were impressed without
distorting the board surfaces.

      Visibility and impression integrity are adjustable by varying
the pressure of the press and the configuration and sharpness of the
dies.

      Since nothing is attached to the surfaces of the printed
circuit boards to identify the scrap segments, such as tape products,
no contamination is imparted to the surfaces and no additional
cleaning steps to remove tape residues are needed.  Additionally,
since the "X" impressions do not extend thr...