发明名称 |
Adjusting the frequency of piezoelectric crystal devices via fracturing the crystal surface |
摘要 |
A method which permits highly stable frequency adjustment of piezoelectric crystal devices to tight tolerances. Small fragments of the crystal (10) which resemble conchoidal shells (18) are removed from at least one surface (11) of the crystal plate by fracturing. In one example, this is accomplished by applying pressure from a sharp-pointed stylus (20) near the edge of the plate.
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申请公布号 |
US4224547(A) |
申请公布日期 |
1980.09.23 |
申请号 |
US19790016114 |
申请日期 |
1979.02.28 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
MILLER, ANTON J. |
分类号 |
H03H3/04;(IPC1-7):H01L41/08;H01L41/22 |
主分类号 |
H03H3/04 |
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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