NANOSTRUCTURE BASED SUPER-CAPACITOR FOR PRESSURE AND FINGERPRINT SENSOR

    公开(公告)号:US20170330010A1

    公开(公告)日:2017-11-16

    申请号:US15152504

    申请日:2016-05-11

    申请人: WAQAS KHALID

    发明人: WAQAS KHALID

    IPC分类号: G06K9/00 H05K1/18 G01R27/26

    摘要: An arrangement of individually addressable nanostructures (200) in an array format on a substrate (100) (non-conducting, flexible or rigid) with electrical portions (conducing) in the substrate where the electrical portions form electrical contacts with the nanostructures is utilized to form individually addressable nanostructures. The said nanostructures can be 1-1 000 000 nm in base size and range from 1-1000 000 nm in height. The distance between the said nanostructures in the array can also range from 10-1 000 000 nm. The said nanostructures are covered in a dielectric material (300) (air, polymer, ceramic) that is at least 5-5 00 000 nm thicker than the height of the said nanostructures. The dielectric properties of the dielectric material are an important component in determining the capacitance/supercapacitance properties of the fingerprint device. A top electrode (400) is placed on the face of dielectric film opposite to the face in contact with the substrate where nanostructures are arranged. A top layer (500) (glass or Other robust material) is placed on top of the top metal electrode. A voltage V (900) is applied between the nanostructures (200) and the top electrodes (400), an intense electric field (600) is generated between the nanostructures (200) and the top electrode (400). The direction of the said electrical field is dependent on the polarity of the voltage applied. The electric capacitance (700) between the nanostructures and the top electrode as formed. When a finger (1000) is placed on the device, the ridges (1001) of the fingerprints make contact with the top layer (500) of the device causing a signal, (a change in the capacitance of the device) that can be detected using external circuits. The valleys (1002) of the finger do not make contact with the top layer (500) device and hence do not produce a signal. If a pressure is applied on the top layer (500), the distance between the top electrode (400) and the nanostructures (200) is reduced, causing a change in the capacitance, allowing measurement of pressure. Since the nanostructures (200) are distributed on a surface (2000) in sections (2010) we can obtain special resolution of pressure on a surface or gather fingerprints using a cost effective, low power, robust and stand-alone portable, miniature system.

    ELECTRONIC DEVICE AND SHIELD THEREOF
    3.
    发明申请

    公开(公告)号:US20180263143A1

    公开(公告)日:2018-09-13

    申请号:US15706535

    申请日:2017-09-15

    IPC分类号: H05K9/00 H05K7/20 H05K3/34

    摘要: A shield is provided, including a frame and a cover. The frame includes a plurality of frame side walls and a frame top structure. Each frame side wall includes at least one frame side wall wedge. The frame side walls are connected to the frame top structure, and the frame top structure includes at least one cantilever beam. The cover includes a plurality of cover side walls and a cover top structure. Each cover side wall includes at least one cover side wall opening. The frame side wall wedge is adapted to be wedged into the cover side wall opening to restrict the movement of the cover in a first direction. The cover side walls are connected to the cover top structure. The cover top structure includes at least one cover top opening. The cantilever beam is wedged into and abuts the cover top opening.

    PRINTED CIRCUIT BOARD SPACER
    5.
    发明申请
    PRINTED CIRCUIT BOARD SPACER 审中-公开
    打印电路板间隔

    公开(公告)号:US20170013740A1

    公开(公告)日:2017-01-12

    申请号:US15203895

    申请日:2016-07-07

    摘要: A power tool and a printed circuit board assembly (“PCBA”) for the power tool. The PCBA includes, for example, a printed circuit board (“PCB”), a heat sink, a spacer between the PCB and the heat sink, and a gap pad. The PCB and the heat sink are fastened to one another via fasteners so the spacer absorbs excess forces torsional forces from torques applied to the fasteners. The gap pad is placed within an opening or recess of the spacer to contact one or more FETs on the PCB. In some embodiments, the PCBA includes a second heat sink or rigid member on the opposite side of the PCB than the spacer to further distribute excess torsional forces from torques applied to the fasteners.

    摘要翻译: 用于电动工具的电动工具和印刷电路板组件(“PCBA”)。 PCBA包括例如印刷电路板(“PCB”),散热器,PCB和散热器之间的间隔物,以及间隙垫。 PCB和散热器通过紧固件彼此紧固,因此间隔件吸收过多的扭矩,从扭矩施加到紧固件上。 间隙垫放置在间隔件的开口或凹槽内以接触PCB上的一个或多个FET。 在一些实施例中,PCBA在PCB的相对侧上包括第二散热器或刚性构件,而不是间隔件,以进一步将过量的扭转力分配给施加到紧固件上的扭矩。

    Nanostructure based super-capacitor for pressure and fingerprint sensor

    公开(公告)号:US09953202B2

    公开(公告)日:2018-04-24

    申请号:US15152504

    申请日:2016-05-11

    申请人: Waqas Khalid

    发明人: Waqas Khalid

    IPC分类号: G06K9/00 H05K1/18 G01R27/26

    摘要: An arrangement of individually addressable nanostructures (200) in an array format on a substrate (100) (non-conducting, flexible or rigid) with electrical portions (conducing) in the substrate where the electrical portions form electrical contacts with the nanostructures is utilized to form individually addressable nanostructures. The said nanostructures can be 1-1,000,000 nm in base size and range from 1-1,000,000 nm in height. The distance between the said nanostructures in the array can also range from 10-1,000,000 nm. The said nanostructures are covered in a dielectric material (300) (air, polymer, ceramic) that is at least 5-500,000 nm thicker than the height of the said nanostructures. The dielectric properties of the dielectric material are an important component in determining the capacitance/supercapacitance properties of the fingerprint device. A top electrode (400) is placed on the face of dielectric film opposite to the face in contact with the substrate where nanostructures are arranged. A top layer (500) (glass or Other robust material) is placed on top of the top metal electrode. A voltage V (900) is applied between the nanostructures (200) and the top electrodes (400), an intense electric field (600) is generated between the nanostructures (200) and the top electrode (400). The direction of the said electrical field is dependent on the polarity of the voltage applied. The electric capacitance (700) between the nanostructures and the top electrode as formed. When a finger (1000) is placed on the device, the ridges (1001) of the fingerprints make contact with the top layer (500) of the device causing a signal, (a change in the capacitance of the device) that can be detected using external circuits. The valleys (1002) of the finger do not make contact with the top layer (500) device and hence do not produce a signal. If a pressure is applied on the top layer (500), the distance between the top electrode (400) and the nanostructures (200) is reduced, causing a change in the capacitance, allowing measurement of pressure. Since the nanostructures (200) are distributed on a surface (2000) in sections (2010) we can obtain special resolution of pressure on a surface or gather fingerprints using a cost effective, low power, robust and stand-alone portable, miniature system.