发明名称 |
METHOD OF THERMAL TREATMENT OF MONOCRYSTALS OF LANTHANUM-GALLIUM SILICATE |
摘要 |
FIELD: electronic industry; methods of production of the crystals with the triclinic crystal system. ^ SUBSTANCE: the invention is pertaining to the method of production of the crystals with the triclinic crystal system. Substance of the invention: the monocrystals of lanthanum-gallium silicate grown in compliance with Czochralski method from the iridium crusible are subjected to the two-stage thermal treatment. The monocrystals are preliminary subjected to the vacuum annealing at the pressure of 1.10-2 -1.10-4Pa and the temperature of 600-1200°C within 0.5-10 hours, and then conduct their isothermal air aging at the temperature of 300-350°C within 0.5-48 hours. The invention allows reproducibly produce the discolored monocrystals of lanthanum-gallium silicate and also to speed up propagation of the surface-acoustic waves (SAW) by 1-1.5 m/s at the simultaneous decrease of dispersion of the waves propagation velocity by 20-30 ppm. ^ EFFECT: the invention ensures production of the discolored monocrystals of lanthanum-gallium silicate and allows to increase the speed of propagation of the surface-acoustic waves at simultaneous reduction of the waves propagation dispersion by 20-30 ppm. |
申请公布号 |
RU2287621(C1) |
申请公布日期 |
2006.11.20 |
申请号 |
RU20050110633 |
申请日期 |
2005.04.12 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "FOMOS-MATERIALS" |
发明人 |
ALENKOV VLADIMIR VLADIMIROVICH;BUZANOV OLEG ALEKSEEVICH;MEDVEDEV ANDREJ VALER'EVICH;SAKHAROV SERGEJ ALEKSANDROVICH |
分类号 |
C30B33/02;C30B15/02;C30B29/34 |
主分类号 |
C30B33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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