Method of producing lithium tantalate crystal

Details Method of producing lithium tantalate crystal Method of producing lithium tantalate crystal

2008-01-29

2008-01-29

Hiteshew, Felisa (Department: 1722)

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

Forming from vapor or gaseous state

With a step of measuring, testing, or sensing

C117S951000, C117S952000, C423S062000

Reexamination Certificate

active

07323050

ABSTRACT:
A method of producing a lithium-tantalate crystal, wherein at least a first material containing lithium tantalate, lithium niobate or hydrogen storage alloy storing hydrogen that is subjected to a heat treatment at a temperature of T1′ that is Curie temperature or higher in a reducing atmosphere is superposed on a single-polarized lithium-tantalate crystal, and then the crystal is subjected to a heat treatment at a temperature of T2′ that is lower than Curie temperature in a reducing atmosphere, thereby an electric conductivity of the single-polarized lithium-tantalate crystal is increased. There can be provided a method of producing a lithium-tantalate crystal wherein the surface charge generated by applying a temperature change to the lithium-tantalate crystal can be decayed quickly without accumulating by increasing the electric conductivity, and an effective piezoelectric property is exhibited by maintaining the single polarized structure.

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: 6319430 (2001-11-01), Bordui et al.
patent: 6348094 (2002-02-01), Shiono et al.
patent: 2005/0066879 (2005-03-01), 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: A 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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