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Arrangement of a Computer

IP.com Disclosure Number: IPCOM000079782D
Original Publication Date: 1973-Sep-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Folberth, OG: AUTHOR

Abstract

Lately computers have been proposed, whose components, operating in the superconductive range, are based on Josephson tunneling effects. With regard to their performance, such computers are superior to semiconductor computers and have the advantage that power dissipation is very low. Due to their physical characteristics, these Josephson elements must be operated at the temperature of liquid helium, so that normally they are placed in a cooling chamber containing the liquid helium which, in its turn, is precooled by liquid nitrogen contained in a further chamber surrounding the liquid helium.

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Arrangement of a Computer

Lately computers have been proposed, whose components, operating in the superconductive range, are based on Josephson tunneling effects. With regard to their performance, such computers are superior to semiconductor computers and have the advantage that power dissipation is very low. Due to their physical characteristics, these Josephson elements must be operated at the temperature of liquid helium, so that normally they are placed in a cooling chamber containing the liquid helium which, in its turn, is precooled by liquid nitrogen contained in a further chamber surrounding the liquid helium.

As a precooling zone corresponding to the temperature of the liquid nitrogen is formed in the precooling chamber and most semiconductor characteristics of silicon are optimal at the liquid nitrogen temperature of 77 degrees K, the existing precooling chamber is used as an interface in between the actual core of the Josephson element computer and the peripheral circuits at room temperature. For this reason, semiconductor circuits are placed in the precooling chamber of the temperature of liquid nitrogen. This results in an improved interfacing of the Josephson circuits to the outer periphery, usually consisting of room temperature semiconductor circuits.

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