Piezoelectric Alloy Films

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United States of America Patent

SERIAL NO

15064989

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Abstract

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A thin film XyAl(1-y)N alloy preferably deposited with an intrinsic tensile stress significantly enhances the piezoelectric properties of AlN. The alloy contains y percent of the compound XN, where X is selected from the group consisting of Yb, Ho, Dy, Lu, Tm, Tb, and Gd. The percentage of XN preferably lies in the range 10-60%, and the stress is preferably in the range 200 MPa-1.5 GPa. The film is useful in MEMS devices.

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Patent Owner(s)

Patent OwnerAddress
TELEDYNE DALSA SEMICONDUCTOR INCWATERLOO ON N2V 2E9

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coia, Cedrik Brossard, CA 2 3
Daoust, Patrick Montreal, CA 1 3
Desjardins, Patrick St-Laurent, CA 10 89
Masut, Remo Montreal, CA 1 3

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