发明名称 Temperature stable cuts of quartz
摘要 Temperature stable cuts of quartz comprise the families of doubly rotated cuts defined by (YXwlt) 0/27/138, 7/27/135.5, 15/40/40, 15/30/38, 12.5/35/130 and rotational equivalents thereof. It is found that SAW devices may be fabricated on these cuts which demonstrate a very high degree of temperature stability and which have other characteristics consistent with practical usage. The sensitivity of the stability to variations in the propagation direction, corresponding to the angle psi, is such that it is advantageous to fabricate several input-output transducer pairs, each slightly rotated with respect to the others, and to chose the most stable for actual use.
申请公布号 US4400640(A) 申请公布日期 1983.08.23
申请号 US19820378668 申请日期 1982.05.17
申请人 MOTOROLA INC. 发明人 CHO, FREDERICK Y.;WILLIAMS, DYLAN F.
分类号 H03H9/02;(IPC1-7):H01L41/08 主分类号 H03H9/02
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