Browse Prior Art Database

Miniature Pluggable Connector Using Conductive Fluid for Cryogenic Electronic Circuits

IP.com Disclosure Number: IPCOM000084130D
Original Publication Date: 1975-Sep-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Anacker, W: AUTHOR

Abstract

A miniaturized "pluggable" connector 1 for cryogenic packaging of electronic circuits is shown in the figure. A module 2 which may have a plurality of 2 mil wide, 10 mil long input/output (I/O) pins 3 is connected to recesses 4 in board 5.

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Miniature Pluggable Connector Using Conductive Fluid for Cryogenic Electronic Circuits

A miniaturized "pluggable" connector 1 for cryogenic packaging of electronic circuits is shown in the figure. A module 2 which may have a plurality of 2 mil wide, 10 mil long input/output (I/O) pins 3 is connected to recesses 4 in board 5.

First, board 5 is prepared by cutting a sheet of insulating material (e.g., Si wafer) of about 20 to 30 mil thickness to proper shape (e.g., 2'' by 2''). Then, a plurality of holes (e.g., 6 mil diameter) is provided on required centers (e.g., 12 mil). Also, a plate 6 with concentric matching holes 7 of smaller diameter (e.g., 2 mil) is prepared and affixed to the bottom side of board 5 forming recesses 4. A third plate 8 with personalized board wiring (X and Y) and circular dimples 9 (e.g., 2 mil diameter) concentrically matching with holes in plate 6, is then affixed to plate 6.

Then, an electrically conducting liquid 10 with a melting point below room temperature, low-vapor pressure and high-surface tension (e.g., mercury) is filled into all recesses 4 in board 5. Finally, another plate 11 is prepared with concentric matching holes 12 (e.g., 4 mil diameter) and permanently affixed to the top of board 5. Module 2 to be plugged into board 5 is equipped with pins 3 of Nb, for example, located on concentric matching positions with holes 12 in plate
11.

To connect module 2 to the board 5, pins 3 are inserted through holes 12 in plate 11 and module 2 is mechanically...