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    • 5. 发明申请
    • Circuit for detecting capacitance change in variable capacitance
    • 用于检测可变电容中电容变化的电路
    • US20050099251A1
    • 2005-05-12
    • US10940014
    • 2004-09-14
    • Toshikazu ItakuraHisanori Yokura
    • Toshikazu ItakuraHisanori Yokura
    • G01L9/00G01P15/125G01R27/26H01H75/00
    • G01R27/2605G01P15/125
    • A capacitance of a capacitor member, which varies according to a dynamic force such as an acceleration force imposed on the capacitor member, is detected by a detecting circuit. The detecting circuit is composed of an operational amplifier and a switched capacitor circuit connected in parallel to each other. A reset time (t), during which a feedback capacitor in the switched capacitor circuit is discharged, is set to satisfy the following formula: t>(ΔC+m)/n, where ΔC is an initial capacitance of the capacitor member, and n and m are constant factors having values in certain ranges. By setting the reset time (t) according to the above formula, an amount of acceleration imposed on the capacitor member is accurately detected even when the capacitor member has a certain level of the initial capacitance.
    • 通过检测电路检测电容器部件的电容,其根据施加在电容器部件上的加速力等动力而变化。 检测电路由并联连接的运算放大器和开关电容电路构成。 将开关电容电路中的反馈电容器放电的复位时间(t)设定为满足以下公式:t>(DeltaC + m)/ n,其中DeltaC是电容器部件的初始电容, n和m是在一定范围内具有值的常数因子。 通过根据上述公式设定复位时间(t),即使电容器部件具有初始电容的一定水平,也能够精确地检测施加在电容器部件上的加速度。
    • 6. 发明申请
    • MAGNETIC SENSOR AND MANUFACTURING METHOD OF THE SAME
    • 磁传感器及其制造方法
    • US20120306490A1
    • 2012-12-06
    • US13477208
    • 2012-05-22
    • Takamoto FURUICHIHisanori YOKURAToshifumi YANO
    • Takamoto FURUICHIHisanori YOKURAToshifumi YANO
    • G01R33/09H01F7/06
    • G01R33/093G01R33/098H01L27/22H01L43/08H01L43/12Y10T29/4902
    • A manufacturing method of a magnetic sensor, detecting a physical amount based on a resistance change in each MRE while applying an external magnetic field to MREs, includes: preparing a substrate; forming MREs, including a free magnetic layer having a changeable magnetization direction and a pin magnetic layer having a fixed magnetization direction, above the substrate; forming heaters corresponding to MREs; arranging the substrate in the external magnetic field having a magnetic field direction in a first direction parallel to the substrate; and heating with one portion of the heater portions and magnetizing one portion of the pin magnetic layers in the first direction; and arranging the substrate in another external magnetic field having another magnetic field direction in a second direction different from the first direction; and heating with another portion of the heater portions and magnetizing another portion of the pin magnetic layers in the second direction.
    • 一种磁传感器的制造方法,其特征在于,在向MRE施加外部磁场的同时,基于每个MRE中的电阻变化来检测物理量,包括:准备基板; 在基板上形成包括具有可变磁化方向的自由磁性层和具有固定的磁化方向的销磁性层的MRE; 形成对应于MRE的加热器; 在与所述基板平行的第一方向上具有磁场方向的外部磁场中配置所述基板; 并加热一部分加热器部分,并在第一方向上磁化一部分销钉磁性层; 以及将所述基板设置在与所述第一方向不同的第二方向上的具有另一磁场方向的另一外部磁场中; 并且与另一部分加热器部分进行加热,并在第二方向上磁化另一部分销钉磁性层。
    • 8. 发明授权
    • Capacitive type humidity sensor
    • 电容式湿度传感器
    • US07387024B2
    • 2008-06-17
    • US11061448
    • 2005-02-22
    • Toshikazu ItakuraHisanori Yokura
    • Toshikazu ItakuraHisanori Yokura
    • G01N27/22G01R27/26
    • G01N27/223
    • A capacitive type humidity sensor includes: a semiconductor substrate; a plurality of humidity devices having a capacitance variable in accordance with a humidity; a standard capacitance device having a standard capacitance, a capacitance change of which in accordance with the humidity is smaller than that of the capacitance of each humidity device; and a CV converter circuit for converting a capacitance difference between the capacitance of each humidity device and the standard capacitance of the standard capacitance device to a signal voltage. The humidity devices, the standard capacitance device and the CV converter circuit are disposed on one side of the substrate.
    • 电容式湿度传感器包括:半导体衬底; 多个湿度装置,其具有根据湿度可变的电容; 具有标准电容的标准电容器件,根据湿度的电容变化小于每个湿度器件的电容的电容值; 以及用于将每个湿度装置的电容和标准电容装置的标准电容之间的电容差转换为信号电压的CV转换器电路。 湿度装置,标准电容装置和CV转换器电路设置在基板的一侧。
    • 9. 发明授权
    • Fabri-Perot filter
    • Fabri-Perot过滤器
    • US07154094B2
    • 2006-12-26
    • US11007277
    • 2004-12-09
    • Hisanori YokuraTakahiko Yoshida
    • Hisanori YokuraTakahiko Yoshida
    • G01J5/02
    • G01J3/26G02B26/001
    • A Fabri-Perot filter includes: a substrate; a first mirror disposed on the substrate; and a movable mirror unit facing the first mirror with a gap therebetween. The movable mirror unit is movable toward the first mirror in a case where a predetermined voltage is applied between the first mirror and the movable mirror unit so that the gap is changeable. The filter is capable of transmitting an infrared light having a predetermined wavelength corresponding to the gap. The movable mirror unit includes a center portion and a periphery portion, which is deformable easier than the center portion.
    • Fabri-Perot过滤器包括:基底; 设置在基板上的第一反射镜; 以及面对第一反射镜的可移动镜单元,其间具有间隙。 在第一反射镜和可动反射镜单元之间施加预定电压使得间隙可变的情况下,可动镜单元可朝向第一反射镜移动。 滤光器能够传输具有与间隙对应的预定波长的红外光。 可动镜单元包括中心部分和周边部分,其比中心部分易变形。
    • 10. 发明授权
    • Semiconductor device
    • 半导体器件
    • US08497557B2
    • 2013-07-30
    • US12754036
    • 2010-04-05
    • Masaya TanakaTetsuo FujiiHisanori Yokura
    • Masaya TanakaTetsuo FujiiHisanori Yokura
    • H01L29/84
    • B81B7/0041B81C2203/019H01L23/3121H01L2924/0002H01L2924/00
    • A semiconductor device includes a first semiconductor substrate, a second semiconductor substrate, and a sealing member. The first semiconductor substrate has a surface and includes a sensing portion on the surface side. The sensing portion has a movable portion. The first semiconductor substrate and the second semiconductor substrate are bonded together to form a stacked substrate. The stacked substrate defines a hermetically sealed space for accommodating the sensing portion between the first and second semiconductor substrates. The stacked substrate further defines a recess extending between the first semiconductor substrate and the second semiconductor substrate to penetrate an interface between the first semiconductor substrate and the second semiconductor substrate. The sealing member is located in the recess.
    • 半导体器件包括第一半导体衬底,第二半导体衬底和密封构件。 第一半导体衬底具有表面并且在表面侧包括感测部分。 感测部分具有可移动部分。 将第一半导体衬底和第二半导体衬底接合在一起以形成堆叠衬底。 堆叠的衬底限定用于在第一和第二半导体衬底之间容纳感测部分的气密密封空间。 堆叠的衬底还限定了在第一半导体衬底和第二半导体衬底之间延伸的凹部,以穿透第一半导体衬底和第二半导体衬底之间的界面。 密封件位于凹槽中。