Browse Prior Art Database

High-I/O Zero-Insertion-Force Z-Axis Card-On-Board Connector

IP.com Disclosure Number: IPCOM000119260D
Original Publication Date: 1991-Jan-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 3 page(s) / 103K

Publishing Venue

IBM

Related People

Dranchak, DW: AUTHOR [+2]

Abstract

Disclosed is an interconnection system for both signal and power between a card 1 and a board 2. This concept provides high signal density as well as improved signal integrity and power transfer. Fig. 1 shows an overall exterior view, while Fig. 2 shows the closed or actuated position, and Fig. 3 shows the open position.

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High-I/O Zero-Insertion-Force Z-Axis Card-On-Board Connector

      Disclosed is an interconnection system for both signal
and power between a card 1 and a board 2.  This concept provides high
signal density as well as improved signal integrity and power
transfer.  Fig. 1 shows an overall exterior view, while Fig. 2 shows
the closed or actuated position, and Fig. 3 shows the open position.

      The card contacts 18 are connected to the board contacts 17
through circuit lines on the flex circuit 3 with the card-to-flex
circuit interface being field-separable. The flex circuit 3 and board
2 make electrical connection through factory-made flat-pad on flat-
pad. The elastomeric pad 5 facilitates these connections.  An
alternate approach to connect the flex 3 to the board 2 is to use a
pinned header that would be soldered to and protrude down through
vias in the flex 3.  The pins would then be soldered into
plated-through holes in the board 2.

      Referring first to Fig. 3, the daughter card 1 is inserted into
the connector when the connector is in the open position.  With the
cam 16 rotated into the horizontal or open position, the legs of the
U-shaped spring 11 are separated.  This causes the pressure bars 19
to slide and create an open space between the card contacts 18 into
which the daughter card 1 can be inserted.  Referring now to Fig. 2,
rotating the cam 16 into the closed position (approximately 35
degrees counterclockwise) allows the spring 11 to...