Method of producing single-polarized lithium tantalate...

Details Method of producing single-polarized lithium tantalate... Method of producing single-polarized lithium tantalate...

2008-05-20

2008-05-20

Kunemund, Robert (Department: 1792)

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth with a subsequent step acting on the...

C117S003000, C117S941000

Reexamination Certificate

active

10942960

ABSTRACT:
A method of producing a lithium-tantalate crystal comprising, at least subjecting a single-polarized lithium-tantalate crystal wherein an optical absorption coefficient at a wave number of 3480 cm−1is 0.3 cm−1or less to a heat treatment under a reducing atmosphere at a temperature of not lower than 250° C. and not higher than Curie temperature and a single-polarized lithium-tantalate crystal wherein an optical absorption coefficient at a wave number of 3480 cm−1is 0.3 cm−1or less and an electric conductivity is 1×10−12Ω−1·cm−1or more. There can be provided a method of producing a single-polarized lithium-tantalate crystal in a short time efficiently wherein the surface charge generated due to a pyroelectric property can be decayed quickly by improving the electric conductivity and a single-polarized lithium-tantalate crystal.

REFERENCES:
patent: 4371419 (1983-02-01), Fukuda et al.
patent: 5323262 (1994-06-01), Mizuuchi et al.
patent: 5910699 (1999-06-01), Namba et al.
patent: 6348094 (2002-02-01), Shiono et al.
patent: 2006/0169196 (2006-08-01), Shiono
patent: 0 893 515 (1999-01-01), None
patent: 1 043 617 (2000-10-01), None
patent: A 53-109900 (1978-09-01), None
patent: A 54-12587 (1979-01-01), None
patent: A 57-3800 (1982-01-01), None
patent: A 58-151399 (1983-09-01), None
patent: A 10-1391 (1998-01-01), None
patent: 11-92147 (1999-04-01), None
patent: WO 01/33260 (2001-05-01), None
patent: WO 2004/002891 (2004-01-01), None

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