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    • 4. 发明授权
    • Microelectronic diamond capacitive transducer
    • 微电子金刚石电容式换能器
    • US5453628A
    • 1995-09-26
    • US322064
    • 1994-10-12
    • Michelle L. HartsellScott R. SahaidaBrian R. StonerGlenn J. Tessmer
    • Michelle L. HartsellScott R. SahaidaBrian R. StonerGlenn J. Tessmer
    • G01L9/00H01L29/84H01L29/96
    • G01L9/0073
    • A capacitive transducer includes a first electrically conductive layer, and a diamond diaphragm mounted opposite the first electrically conductive Layer so as to be moveable relative to the first electrically conductive layer. The first electrically conductive layer defines a first plate for the transducer, while the diaphragm defines the second plate for the transducer. In one embodiment of the transducer, the diamond layer is degeneratively doped providing the second plate. The microelectronic capacitive transducer preferably also includes an insulating layer on a face of the diamond layer adjacent the electrically conductive layer defining an overpressure stop for the transducer. The transducer includes absolute or differential pressure sensing embodiments. The microelectronic capacitive transducer may also be configured as an actuator. The diamond layer may be highly oriented diamond including semiconductor devices formed therein to provide signal conditioning. A fabrication method is also disclosed.
    • 电容换能器包括第一导电层和与第一导电层相对安装的金刚石膜片,以便相对于第一导电层可移动。 第一导电层限定用于换能器的第一板,而隔膜限定用于换能器的第二板。 在换能器的一个实施例中,金刚石层退化掺杂,提供第二板。 微电子电容换能器优选地还包括在邻近导电层的金刚石层的面上的绝缘层,其限定用于换能器的超压停止。 换能器包括绝对或差压感测实施例。 微电子电容换能器也可以被配置为致动器。 金刚石层可以是包括其中形成的半导体器件的高取向金刚石以提供信号调节。 还公开了一种制造方法。