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Low Temperature Flux

IP.com Disclosure Number: IPCOM000052644D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11

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Related People

Grebe, KR Knapp, EC Roush, WB Waldman, DP [+details]


In the fabrication of circuits, and particularly those in which use is made of Josephson tunneling devices, it is often necessary to use solders which have melting points that are below about 100 Degrees C. In order to provide a flux for these low temperature solders, a combination of 15% 1-naphthalene sulfonic acid and 85% polyethylene glycol 400 is used. This flux is water-soluble.