TEMPERATURE STABILITIZED MEMS
    1.
    发明申请
    TEMPERATURE STABILITIZED MEMS 有权
    温度稳定的MEMS

    公开(公告)号:US20130264610A1

    公开(公告)日:2013-10-10

    申请号:US13441134

    申请日:2012-04-06

    IPC分类号: H01L29/66 H01L27/06

    摘要: A semiconductor device with temperature control system. Embodiments of the device may include a MEMS chip including a first heater with a dedicated first temperature control loop and a CMOS chip including a second heater with a dedicated second temperature control loop. Each control loop may have a dedicated temperature sensor for controlling the thermal output of each heater. The first heater and sensor are disposed proximate to a MEMS device in the MEMS chip for direct heating thereof. The temperature of the MEMS chip and CMOS chip are independently controllable of each other via the temperature control loops.

    摘要翻译: 具有温度控制系统的半导体器件。 该装置的实施例可以包括包括具有专用第一温度控制回路的第一加热器和包括具有专用第二温度控制回路的第二加热器的CMOS芯片的MEMS芯片。 每个控制回路可以具有用于控制每个加热器的热输出的专用温度传感器。 第一加热器和传感器靠近MEMS芯片中的MEMS器件设置,用于直接加热MEMS芯片。 MEMS芯片和CMOS芯片的温度可以通过温度控制回路彼此独立控制。

    MEMS VACUUM LEVEL MONITOR IN SEALED PACKAGE
    2.
    发明申请
    MEMS VACUUM LEVEL MONITOR IN SEALED PACKAGE 有权
    密封包装中的MEMS真空度监测器

    公开(公告)号:US20130213139A1

    公开(公告)日:2013-08-22

    申请号:US13401134

    申请日:2012-02-21

    IPC分类号: G01L7/00 H01L29/84

    摘要: A vacuum sensor for sensing vacuum in a sealed enclosure is provided. The sealed enclosure includes active MEMS devices desired to be maintained in vacuum conditions. The vacuum sensor includes a motion beam anchored to an internal surface in the sealed enclosure. A driving electrode is disposed beneath the motion beam and a bias is supplied to cause the motion beam to deflect through electromotive force. A sensing electrode is also provided and detects capacitance between the sensing electrode disposed on the internal surface, and the motion beam. Capacitance changes as the gap between the motion beam and the sensing electrode changes. The amount of deflection is determined by the vacuum level in the sealed enclosure. The vacuum level in the sealed enclosure is thereby sensed by the sensing electrode.

    摘要翻译: 提供了用于感测密封外壳中的真空的真空传感器。 密封的外壳包括希望保持在真空条件下的有源MEMS器件。 真空传感器包括锚定在密封外壳中的内表面的运动梁。 驱动电极设置在运动光束下方,并且提供偏压以使运动光束通过电动势偏转。 还提供感测电极并且检测设置在内表面上的感测电极与运动光束之间的电容。 电容随着运动光束与感应电极之间的间隙而变化。 偏转量由密封外壳中的真空度决定。 因此,密封外壳中的真空度由感测电极感测。

    FREQUENCY GENERATOR
    3.
    发明申请
    FREQUENCY GENERATOR 审中-公开
    频率发生器

    公开(公告)号:US20120187983A1

    公开(公告)日:2012-07-26

    申请号:US13009952

    申请日:2011-01-20

    IPC分类号: H03B19/00

    CPC分类号: H03B21/01 H03B5/30

    摘要: A mechanical frequency generator has a first mechanical resonator and a second mechanical resonator and a circuit connected with the first and second mechanical resonators. The first and second mechanical resonators having substantially the same resonator frequency coefficients as a function of an environment of the first and the second mechanical resonators. The first mechanical resonator differing in size from the second mechanical resonator. The circuit adapted to generate a difference frequency signal responsive to the first and second mechanical resonator frequency signals and based on the first and the second predetermined resonant frequencies.

    摘要翻译: 机械频率发生器具有第一机械谐振器和第二机械谐振器以及与第一和第二机械谐振器连接的电路。 第一和第二机械谐振器具有与第一和第二机械谐振器的环境的函数基本上相同的谐振器频率系数。 第一机械谐振器的尺寸与第二机械谐振器的尺寸不同。 该电路适于响应于第一和第二机械谐振器频率信号并基于第一和第二预定谐振频率产生差频信号。

    BUILT-IN SELF-TEST CIRCUIT FOR LIQUID CRYSTAL DISPLAY SOURCE DRIVER
    4.
    发明申请
    BUILT-IN SELF-TEST CIRCUIT FOR LIQUID CRYSTAL DISPLAY SOURCE DRIVER 有权
    用于液晶显示源驱动器的内置自检电路

    公开(公告)号:US20110260746A1

    公开(公告)日:2011-10-27

    申请号:US12764346

    申请日:2010-04-21

    IPC分类号: G01R31/02 G01R31/26

    摘要: A built-in self-test (BIST) circuit for a liquid crystal display (LCD) source driver includes at least one digital-to-analog converter (DAC) and at least one buffer coupled to the respective DAC, wherein the buffer is reconfigurable as a comparator. A first input signal and a second input signal are coupled to the comparator. The first input signal is a predetermined reference voltage level. The second input signal is a test offset voltage in a test range.

    摘要翻译: 用于液晶显示器(LCD)源驱动器的内置自检(BIST)电路包括至少一个数模转换器(DAC)和耦合到相应DAC的至少一个缓冲器,其中缓冲器可重新配置 作为比较。 第一输入信号和第二输入信号耦合到比较器。 第一输入信号是预定的参考电压电平。 第二输入信号是测试范围内的测试偏移电压。

    RATIO METER OF A THERMAL SENSOR
    5.
    发明申请
    RATIO METER OF A THERMAL SENSOR 有权
    热传感器的比率表

    公开(公告)号:US20140211905A1

    公开(公告)日:2014-07-31

    申请号:US13754151

    申请日:2013-01-30

    IPC分类号: G01K1/00

    摘要: A ratio meter includes a converter circuit, a first counter, a delay circuit, and a second counter. The converter circuit is configured to receive a temperature-independent signal, to convert the received temperature-independent signal into a first frequency signal during a first phase, to receive a temperature-dependent signal, and to convert the temperature-dependent signal into a second frequency signal during a second phase. The first counter is configured to receive the first frequency signal and to generate a control signal by counting a predetermined number of pulses of the first frequency signal count. The delay circuit is configured to delay the control signal for a predetermined time delay. The second counter is configured to receive the second frequency signal and to generate a count value by counting the second frequency signal.

    摘要翻译: 比率计包括转换器电路,第一计数器,延迟电路和第二计数器。 转换器电路被配置为接收温度独立信号,以在第一阶段期间将接收到的与温度无关的信号转换为第一频率信号,以接收依赖于温度的信号,并将温度相关信号转换为第二频率信号 频率信号在第二阶段。 第一计数器被配置为接收第一频率信号并且通过对预定数量的第一频率信号计数的脉冲进行计数来产生控制信号。 延迟电路被配置为延迟控制信号达预定的时间延迟。 第二计数器被配置为接收第二频率信号并且通过对第二频率信号进行计数来产生计数值。

    SMALL AREA HIGH PERFORMANCE CELL-BASED THERMAL DIODE
    6.
    发明申请
    SMALL AREA HIGH PERFORMANCE CELL-BASED THERMAL DIODE 有权
    小区域高性能基于单元的二极管

    公开(公告)号:US20130195142A1

    公开(公告)日:2013-08-01

    申请号:US13428549

    申请日:2012-03-23

    IPC分类号: G01K7/01 G01K7/00 H02B1/00

    CPC分类号: G01K7/01 Y10T307/76

    摘要: A thermal sensing system includes a circuit having a layout including standard cells arranged in rows and columns. First and second current sources provide first and second currents, respectively. The thermal sensing system includes thermal sensing units, first and second switching modules, and an analog to digital converter (ADC). Each thermal sensing unit is configured to provide a voltage drop dependent on a temperature at that thermal sensing unit. The first switching module is configured to select one of the thermal sensing units. The second switching module includes at least one switch controllable by a control signal. The at least one switch is configured to selectively couple the thermal sensing units, based on the control signal, to one of the first and second current sources, via the first switching module. The ADC is configured to convert an analog voltage, provided by the selected thermal sensing unit, to a digital value.

    摘要翻译: 热感测系统包括具有布置成行和列的标准单元的布局的电路。 第一和第二电流源分别提供第一和第二电流。 热感测系统包括热敏单元,第一和第二开关模块以及模数转换器(ADC)。 每个热敏单元被配置成提供取决于该热感测单元处的温度的电压降。 第一开关模块被配置为选择一个热感测单元。 第二开关模块包括可由控制信号控制的至少一个开关。 所述至少一个开关被配置为经由所述第一开关模块将所述热感测单元基于所述控制信号选择性地耦合到所述第一和第二电流源之一。 ADC配置为将所选热敏单元提供的模拟电压转换为数字值。