Browse Prior Art Database

Fine Pitch Alignment Technique for Elastomeric Type Connectors

IP.com Disclosure Number: IPCOM000103251D
Original Publication Date: 1990-Sep-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 43K

Publishing Venue

IBM

Related People

Davis, TL: AUTHOR

Abstract

This disclosure documents a technique for using elastomeric type connectors to facilitate reliable electrical connections between two cards oriented parallel to one another, as illustrated in the Figure. As pressure is applied to each card, the Fine Diameter Conductors (FDC) wipe the corresponding pad's surface. Some of the FDC's may become skewed enough to touch the adjacent surface mount pads on the cards. An electrical potential is applied between the pad of interest and the neighboring sites to eliminate possible FDCs that would cause undesirable shorting between pads. In the figure, if Pad 1 is investigated, a potential would be established between Pad 1 and Pads 2, and 4. No potential would be applied between Pad 1 and 3 since this is the path of interest.

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Fine Pitch Alignment Technique for Elastomeric Type Connectors

      This disclosure documents a technique for using elastomeric
type connectors to facilitate reliable electrical connections between
two cards oriented parallel to one another, as illustrated in the
Figure.  As pressure is applied to each card, the Fine Diameter
Conductors (FDC) wipe the corresponding pad's surface.  Some of the
FDC's may become skewed enough to touch the adjacent surface mount
pads on the cards.  An electrical potential is applied between
the pad of interest and the neighboring sites to eliminate possible
FDCs that would cause undesirable shorting between pads.  In the
figure, if Pad 1 is investigated, a potential would be established
between Pad 1 and Pads 2, and 4.  No potential would be applied
between Pad 1 and 3 since this is the path of interest.  This
disclosed alignment technique  can account for connector
manufacturing assembly tolerances and FDC skewing when the
elastomeric is deformed.

      Disclosed anonymously.