Browse Prior Art Database

High Density Field Replaceable Flexible Circuit Connector

IP.com Disclosure Number: IPCOM000121256D
Original Publication Date: 1991-Aug-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 3 page(s) / 91K

Publishing Venue

IBM

Related People

Campbell, JS: AUTHOR [+2]

Abstract

This invention relates to the interconnection of circuit boards and cards utilizing a flexible circuit connector. Flexible circuit connectors are being used increasingly, since they can provide a high density interconnect with controlled impedance.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 60% of the total text.

High Density Field Replaceable Flexible Circuit Connector

      This invention relates to the interconnection of circuit
boards and cards utilizing a flexible circuit connector. Flexible
circuit connectors are being used increasingly, since they can
provide a high density interconnect with controlled impedance.

      The disclosed invention is a high density, field replaceable,
zero insertion force, flexible circuit connector which provides an
interconnection between circuit boards and cards.  Unlike prior art
card-on-board connectors, connector failures can be easily repaired
by replacing only the connector.  The connector can be easily
unplugged (without special tools) from either the board, card, or
both.

      This card-on-board connector utilizes a flexible circuit with
pad-on-pad connections to form an electrical connection between a
card and a planar board.  In Fig. 1 the flex 6 is formed in an
"L" shape (see Fig. 1, cutaway view B); one end of the "L" leg is
connected to the card 1 via pad-on-pad pressure connections and the
screws 10 clamp the housing 11, elastomer 3, flex 6, card 1 and card
stiffener 2 together.  The other end of the flex "L" leg is connected
to the planar board via pad-on-pad pressure connections.  The thumb
screws 12 clamp the housing 11, the elastomer springs 4, the pressure
foot 9, the elastomer 5, the flex 6, the planar board 8 and the board
stiffener 7 together.  This clamping pressure generates the
pad-on-pad contact for...