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    • 4. 发明申请
    • ASYMMETRIC MEMBRANE CMUT DEVICES AND FABRICATION METHODS
    • 不对称膜切割装置和制造方法
    • WO2005087391A2
    • 2005-09-22
    • PCT/US2005/008259
    • 2005-03-11
    • GEORGIA TECH RESEARCH CORPORATIONDEGERTEKIN, F., LeventMCLEAN, Jeffrey, JohnKNIGHT, Joshua, Glenn
    • DEGERTEKIN, F., LeventMCLEAN, Jeffrey, JohnKNIGHT, Joshua, Glenn
    • B06B1/00
    • B06B1/0292G01N29/2406
    • Asymmetric membrane capacitive micromachined ultrasonic transducer ("cMUT") devices and fabrication methods are provided. In a preferred embodiment, a cMUT device according to the present invention generally comprises a membrane having asymmetric properties. The membrane can have a varied width across its length so that its ends have different widths. The asymmetric membrane can have varied flex characteristics due to its varied width dimensions. In another preferred embodiment, a cMUT device according to the present invention generally comprises an electrode element having asymmetric properties. The electrode element can have a varied width across its length so that its ends have different widths. The asymmetric electrode element can have different reception and transmission characteristics due to its varied width dimensions. In another preferred embodiment, a mass load positioned along the membrane can alter the mass distribution of the membrane. Other embodiments are also claimed and described.
    • 提供了非对称膜电容微加工超声波换能器(“cMUT”)器件和制造方法。 在优选实施方案中,根据本发明的cMUT装置通常包含具有不对称性质的膜。 膜可以在其长度上具有变化的宽度,使得其端部具有不同的宽度。 由于其不同的宽度尺寸,不对称膜可以具有不同的柔性特性。 在另一优选实施例中,根据本发明的cMUT装置通常包括具有不对称性质的电极元件。 电极元件可以在其长度上具有变化的宽度,使得其端部具有不同的宽度。 由于其不同的宽度尺寸,不对称电极元件可以具有不同的接收和传输特性。 在另一个优选实施例中,沿着膜定位的质量载荷可以改变膜的质量分布。 还要求保护和描述其它实施例。
    • 6. 发明申请
    • ASYMMETRIC MEMBRANE CMUT DEVICES AND FABRICATION METHODS
    • 不对称膜切割装置和制造方法
    • WO2005087391A3
    • 2006-04-27
    • PCT/US2005008259
    • 2005-03-11
    • GEORGIA TECH RES INSTDEGERTEKIN F LEVENTMCLEAN JEFFREY JOHNKNIGHT JOSHUA GLENN
    • DEGERTEKIN F LEVENTMCLEAN JEFFREY JOHNKNIGHT JOSHUA GLENN
    • B06B1/02
    • B06B1/0292G01N29/2406
    • Asymmetric membrane capacitive micromachined ultrasonic transducer ("cMUT") devices and fabrication methods are provided. In a preferred embodiment, a cMUT device according to the present invention generally comprises a membrane having asymmetric properties. The membrane can have a varied width across its length so that its ends have different widths. The asymmetric membrane can have varied flex characteristics due to its varied width dimensions. In another preferred embodiment, a cMUT device according to the present invention generally comprises an electrode element having asymmetric properties. The electrode element can have a varied width across its length so that its ends have different widths. The asymmetric electrode element can have different reception and transmission characteristics due to its varied width dimensions. In another preferred embodiment, a mass load positioned along the membrane can alter the mass distribution of the membrane. Other embodiments are also claimed and described.
    • 提供了非对称膜电容微加工超声波换能器(“cMUT”)器件及其制造方法。 在优选的实施方案中,根据本发明的cMUT装置通常包含具有不对称性质的膜。 膜可以在其长度上具有变化的宽度,使得其端部具有不同的宽度。 由于其不同的宽度尺寸,不对称膜可以具有变化的弯曲特性。 在另一个优选实施例中,根据本发明的cMUT装置通常包括具有不对称性质的电极元件。 电极元件可以在其长度上具有变化的宽度,使得其端部具有不同的宽度。 由于其不同的宽度尺寸,不对称电极元件可以具有不同的接收和传输特性。 在另一个优选的实施方案中,沿着膜定位的质量载荷可以改变膜的质量分布。 还要求保护和描述其它实施例。
    • 8. 发明申请
    • HARMONIC CMUT DEVICES AND FABRICATION METHODS
    • 谐波CMUT器件和制造方法
    • WO2005084267A3
    • 2007-11-15
    • PCT/US2005006408
    • 2005-02-28
    • GEORGIA TECH RES INSTDEGERTEKIN F LEVENT
    • DEGERTEKIN F LEVENT
    • H02N1/00B06B1/02H02N2/00H03H9/24
    • B06B1/0292
    • Harmonic capacitive micromachined ultrasonic transducer ("cMUT") devices and fabrication methods are provided In a preferred embodiment, a harmonic cMUT device (100) generally comprises a membrane (115) having a non-uniform mass distribution A mass load (155, 160) positioned along the membrane (115) can be utilized to alter the mass distribution of the membrane (115) The mass load (155, 160) can be a part of the membrane (115) and formed of the same material or a different material as the membrane (115) The mass load (155, 160) can be positioned to correspond with a vibration mode of the membrane (115), and also to adjust or shift a vibration mode of the membrane (115) The mass load (155, 160) can also be positioned at predetermined locations along the membrane (1 15) to control the harmonic vibrations of the membrane (115) A cMUT (100) can also comprise a cavity (150) defined b the membrane (115), a first electrode (130a-c) proximate the membrane (1 15), and a seocnd electrode (110) proximate a substrate (105) Other embodiments are also claimed and described.
    • 谐波电容微加工超声换能器(“cMUT”)装置和制造方法在优选实施例中,谐波cMUT装置(100)通常包括具有不均匀质量分布A质量负载(155,160)的膜(115) 可以利用沿膜(115)定位的膜(115)的质量分布。质量负载(155,160)可以是膜(115)的一部分,并且由相同的材料或不同的材料形成, 膜(115)可以将质量负载(155,160)定位成对应于膜(115)的振动模式,并且还可以调节或移动膜(115)的振动模式。质量负载(155, 也可以沿着膜(115)定位在预定位置以控制膜(115)的谐波振动。cMUT(100)还可以包括限定在膜(115)上的空腔(150),第一 接近膜(115)的电极(130a-c)和第一电极(110)p 近似基板(105)还要求保护和描述其它实施例。