Wafer bonding enhancement technique

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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73721, 156633, 156662, B32B 3100

Patent

active

053186524

ABSTRACT:
Low temperature wafer bonding process enhancement makes a wafer surface hydrophobic, preparing it with a buffered oxide etchant and then exposing it to H.sub.2 O.sub.2 before thermoelectric bonding. Has particular application to diaphragm-based pressure sensor construction.

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patent: 5131978 (1992-07-01), O'Neill
German Publication WO-A-9 116 608 (Robert Bosch GmbH), Priority Date Apr. 14, 1990.
Wescon Conference Record-Silicon Fusion Bonding: Revolutionary New Tool for Silicon Sensors and Microstructures Dr. Kurt Petersen & Dr. Phillip Barth, Nov., 1989.
European Patent Application 0 339 981 A3, Kurt E. Peterson et al., filed Apr. 26, 1989.
European Patent Application 0 341 964 A3, H. Furubayashi, et al., filed May 5, 1989.
Patent Abstracts of Japan, No. JP 2122675 (Fuji Electric Company Limited) published on May 10, 1990.
German Publication WO-A-9009677, Guckel, et al., filed Feb. 2, 1990.

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