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    Miniature fluid control device
    41.
    发明授权
    Miniature fluid control device 有权

    公开(公告)号：US10584695B2

    公开(公告)日：2020-03-10

    申请号：US15392061

    申请日：2016-12-28

    Applicant: MICROJET TECHNOLOGY CO., LTD.

    Inventor： Shih-Chang Chen ,  Chi-Feng Huang ,  Yung-Lung Han ,  Jia-Yu Liao ,  Shou-Hung Chen ,  Che-Wei Huang ,  Hung-Hsin Liao ,  Chao-Chih Chen ,  Jheng-Wei Chen ,  Ying-Lun Chang ,  Chia-Hao Chang ,  Wei-Ming Lee

    IPC: F04B43/04 ,  H01L41/09

    Abstract: A miniature fluid control device includes a piezoelectric actuator and a housing. The piezoelectric actuator comprises a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate and has a length not larger than that of the suspension plate. The housing includes a gas collecting plate and a base. The gas collecting plate is a frame body with a sidewall and comprises a plurality of perforations. The base seals a bottom of the piezoelectric actuator and has a central aperture corresponding to the middle portion of the suspension plate. When the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.

    MINIATURE FLUID CONTROL DEVICE
    42.
    发明申请
    MINIATURE FLUID CONTROL DEVICE 审中-公开

    公开(公告)号：US20190247880A1

    公开(公告)日：2019-08-15

    申请号：US16240297

    申请日：2019-01-04

    Applicant: Microjet Technology Co., Ltd.

    Inventor： Hao-Jan Mou ,  Ying-Lun Chang ,  Shih-Chang Chen ,  Chih-Feng Lin ,  Yung-Lung Han ,  Chi-Feng Huang ,  Chang-Yen Tsai

    IPC: B05B17/06

    Abstract: A miniature fluid control device is provided and includes a gas inlet plate, a resonance plate and a piezoelectric actuator. The resonance plate is assembled and combined with the gas inlet plate. The piezoelectric actuator is assembled and combined with the resonance plate. The piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric plate. The suspension plate has a first surface and a second surface. The outer frame is arranged around the suspension plate and has an assembling surface. The piezoelectric plate is attached on the second surface. The at least one bracket is formed between the suspension plate and the outer frame as making the first surface of the suspension plate non-coplanar with the assembling surface of the outer frame, so that a specific chamber spacing is maintained between the first surface of the suspension plate and the resonance plate.

    Miniature pneumatic device
    43.
    发明授权
    Miniature pneumatic device 有权

    公开(公告)号：US10371136B2

    公开(公告)日：2019-08-06

    申请号：US15409871

    申请日：2017-01-19

    Applicant: MICROJET TECHNOLOGY CO., LTD.

    Inventor： Shih-Chang Chen ,  Chi-Feng Huang ,  Yung-Lung Han ,  Jia-Yu Liao ,  Shou-Hung Chen ,  Che-Wei Huang ,  Hung-Hsin Liao ,  Chao-Chih Chen ,  Jheng-Wei Chen ,  Ying-Lun Chang ,  Chia-Hao Chang ,  Wei-Ming Lee

    IPC: F04B43/04 ,  F16K99/00

    Abstract: A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. A first chamber is formed between the resonance plate and the piezoelectric actuator. After a gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device includes a valve plate and a gas outlet plate. After the gas is transferred from the miniature fluid control device to the miniature valve device, the valve opening of the valve plate is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.

    FLUID CONTROL DEVICE
    44.
    发明申请
    FLUID CONTROL DEVICE 审中-公开

    公开(公告)号：US20180066644A1

    公开(公告)日：2018-03-08

    申请号：US15640735

    申请日：2017-07-03

    Applicant: Microjet Technology Co., Ltd.

    Inventor： Shih-Chang Chen ,  Ying-Lun Chang ,  Hsiang-Dyi Wu ,  Yung-Lung Han ,  Chi-Feng Huang

    IPC: F04B43/04

    Abstract: A fluid control device includes a piezoelectric actuator and a deformable substrate. The piezoelectric actuator includes a piezoelectric element and a vibration plate. The piezoelectric element is attached on a first surface of the vibration plate and is subjected to deformation in response to an applied voltage. The vibration plate is subjected to a curvy vibration in response to the deformation of the piezoelectric element. A bulge is formed on a second surface of the vibration plate. The deformable substrate includes a flexible plate and a communication plate stacked on each other. A synchronously-deformed structure is defined by the flexible plate and the communication plate. The deformable substrate is bent in the direction away from the vibration plate. There is a specified depth maintained between the flexible plate and the bulge of the vibration plate. The flexible plate includes a movable part corresponding to the bulge of vibration plate.

    DRIVING CIRCUIT FOR PIEZOELECTRIC PUMP AND CONTROL METHOD THEREOF
    47.
    发明申请
    DRIVING CIRCUIT FOR PIEZOELECTRIC PUMP AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20170218948A1

    公开(公告)日：2017-08-03

    申请号：US15414788

    申请日：2017-01-25

    Applicant: MICROJET TECHNOLOGY CO., LTD.

    Inventor： Ying-Lun Chang ,  Shih-Chang Chen ,  Jia-Yu Liao

    IPC: F04B49/20 ,  A61H9/00 ,  F04B51/00 ,  F04B45/047 ,  F04B49/06

    CPC classification number: F04B49/20 ,  F04B45/047 ,  F04B49/06 ,  F04B51/00

    Abstract: A control method of a driving circuit is provided for controlling a piezoelectric actuator of a piezoelectric pump to move a fluid of a fluid reservoir. Firstly, a driving voltage is outputted from the driving circuit. Then, a first inhalation adjusting process is implemented while the piezoelectric pump performs an inhaling operation. In the first inhalation adjusting process, a fluid pressure of the fluid within the fluid reservoir is detected and the fluid pressure is adjusted to the first predetermined inhalation pressure value according to the detecting result. Then, a first exhalation adjusting process is performed while the piezoelectric pump performs an exhaling operation. In the first exhalation adjusting process, the fluid pressure is detected and the fluid pressure is adjusted to the first predetermined exhalation pressure value according to the detecting result.

    Wafer structure
    50.
    发明授权
    Wafer structure 有权

    公开(公告)号：US11850854B2

    公开(公告)日：2023-12-26

    申请号：US17473276

    申请日：2021-09-13

    Applicant: Microjet Technology Co., Ltd.

    Inventor： Hao-Jan Mou ,  Ying-Lun Chang ,  Hsien-Chung Tai ,  Yung-Lung Han ,  Chi-Feng Huang ,  Wei-Ming Lee

    IPC: B41J2/14

    CPC classification number: B41J2/14145 ,  B41J2/14072 ,  B41J2202/11

    Abstract: A wafer structure is disclosed and includes a chip substrate and an inkjet chip. The chip substrate is a silicon substrate fabricated by a semiconductor process on a wafer of 12 inches. The inkjet chips are formed on the chip substrate by the semiconductor process and diced into the inkjet chip. The inkjet chip includes plural ink-drop generators generated by the semiconductor process on the chip substrate. Each of the plurality of ink-drop generators includes a nozzle. A diameter of the nozzle is in a range between 0.5 micrometers and 10 micrometers. A volume of an inkjet drop discharged from the nozzle is in a range between 1 femtoliter and 3 picoliters. The ink-drop generators form plural longitudinal axis array groups having a pitch and plural horizontal axis array groups having a central stepped pitch equal to or less than 1/600 inches.

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