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Reduction Of Punchthrough In Josephson Latching Circuits

IP.com Disclosure Number: IPCOM000049082D
Original Publication Date: 1982-May-01
Included in the Prior Art Database: 2005-Feb-09

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Gheewala, TR [+details]


In Josephson device circuitry, a condition known as punchthrough can occur. In this condition, a Josephson device may not reset when the gate current through it goes through zero. This article describes a technique for reducing the probability of punchthrough by using two or more Josephson devices having uncorrelated phases, the Josephson devices being interconnected by small resistors. This circuit effectively reduces the load impedance as seen by the Josephson devices and thereby reduces their punchthrough probabilities.