Patents by Inventor Hsien-Chung Tai

Hsien-Chung Tai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210291525
    Abstract: A manufacturing method of narrow type inkjet print head chip is provided and includes steps of: (S1) providing a silicon substrate; (S2) arranging and disposing an active component layer by utilizing a first type photomask on at least two high-precision regions of each of a plurality of inkjet print head chip regions on the silicon substrate; (S3) arranging and disposing a passive component layer by utilizing a second type photomask on the active component layer; and (S4) cutting the silicon substrate according to the inkjet print head chip regions so as to form the plurality of narrow type inkjet print head chips.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 23, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20210291523
    Abstract: A narrow type inkjet print head chip is disclosed and includes a silicon substrate, an active component layer and a passive component layer. The active component layer is stacked on the silicon substrate and includes plural ESD protection units, plural encoder switches, plural discharge protection units and plural heater switches. The ESD protection units, the encoder switches, the discharge protection units and the heater switches are disposed in each of at least two high-precision regions of the active component layer. The corresponding positions and quantities of these components are the same in the at least two high-precision regions. The passive component layer is stacked on the active component layer and includes plural heaters, plural electrode pads, plural encoders and plural circuit traces. The circuit traces are electrically connected to the ESD protection units, the encoder switches, the heater switches, the heaters, the electrode pads and the encoders.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 23, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20210296567
    Abstract: A manufacturing method of micro fluid actuator includes: providing a substrate; depositing a first protection layer on a first surface of the substrate; depositing an actuation region on the first protection layer; applying lithography dry etching to a portion of the first protection layer to produce at least one first protection layer flow channel; applying wet etching to a portion of a main structure of the substrate to produce a chamber body and a first polycrystalline silicon flow channel region, while a region of an oxidation layer middle section of the main structure is not etched; applying reactive-ion etching to a portion of a second surface of the substrate to produce at least one substrate silicon flow channel; and applying dry etching to a portion of a silicon dioxide layer to produce at least one silicon dioxide flow channel.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Inventors: Hao-Jan Mou, Hsien-Chung Tai, Lin-Huei Fang, Yung-Lung Han, Chi-Feng Huang, Chin-Wen Hsieh, Tsung-I Lin
  • Patent number: 11085554
    Abstract: A micro fluid actuator includes a first substrate, a chamber layer, a vibration layer, a first metal layer, a piezoelectric actuation layer, a second metal layer, a second substrate, an inlet layer, a resonance layer and an aperture array plate. The first substrate includes a plurality of first outflow apertures and a plurality of second outflow apertures. The chamber layer includes a storage chamber. The second metal layer includes an upper electrode pad and a lower electrode pad. While driving power having different phase charges is provided to the upper electrode pad and the lower electrode pad to drive and control the vibration layer to displace in a reciprocating manner, the fluid is inhaled from the exterior through the inlet layer, converged to the storage chamber, compressed and pushes out the aperture array plate, and then is discharged out from the micro fluid actuator to achieve fluid transportation.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 10, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Hsuan-Kai Chen
  • Publication number: 20210147221
    Abstract: A manufacturing method of miniature fluid actuator is disclosed and includes the following steps. A flow-channel main body manufactured by a CMOS process is provided, and an actuating unit is formed by a deposition process, a photolithography process and an etching process. Then, at least one flow channel is formed by etching, and a vibration layer and a central through hole are formed by a photolithography process and an etching process. After that, an orifice layer is provided to form at least one outflow opening by an etching process, and then a chamber is formed by rolling a dry film material on the orifice layer. Finally, the orifice layer and the flow-channel main body are flip-chip aligned and hot-pressed, and then the miniature fluid actuator is obtained by a flip-chip alignment process and a hot pressing process.
    Type: Application
    Filed: October 16, 2020
    Publication date: May 20, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Hsien-Chung Tai, Lin-Huei Fang, Yung-Lung Han, Chi-Feng Huang, Chang-Yen Tsai, Wei-Ming Lee
  • Publication number: 20210151663
    Abstract: A miniature fluid actuator is disclosed and includes a substrate, a chamber layer, a carrying layer and a piezoelectric assembly. The substrate has an inlet. The chamber layer is formed on the substrate and includes a first chamber in communication with the inlet, a resonance layer and a second chamber. The resonance layer has a central aperture in communication between the first chamber and the second chamber. The carrying layer includes a fixed region formed on the chamber layer, a vibration region, a connection portion and a vacant. The vibration region is located at a center of the fixed region and corresponding to the second chamber. The connection portion is connected between the fixed region and the vibration region. The vacant is formed among the fixed region, the vibration region and the connection portion. The piezoelectric assembly is formed on the vibration region.
    Type: Application
    Filed: October 16, 2020
    Publication date: May 20, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Hsien-Chung Tai, Lin-Huei Fang, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo, Tsung-I Lin
  • Patent number: 10975856
    Abstract: A gas transportation device is provided and includes a plurality of flow guiding units. Each of the flow guiding units includes an inlet plate, a substrate, a resonance plate, an actuating plate, a piezoelectric component, an outlet plate and a valve, which are sequentially stacked. A convergence chamber is formed between the resonance plate and the inlet plate. The actuating plate has a suspension part, an outer frame and a plurality of interspaces. The piezoelectric component is attached on a surface of the suspension part. Gas is inhaled into the convergence chamber via an inlet aperture of the inlet plate, is transported into a first chamber via a central aperture of the resonance plate, is further transported into a second chamber via the interspaces, and is discharged out from an outlet aperture of the outlet plate. The gas is transported by the flow guiding units disposed in a specific arrangement.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: April 13, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Chi-Feng Huang, Wei-Ming Lee, Hsien-Chung Tai, Yung-Lung Han
  • Patent number: 10883487
    Abstract: A micro-electromechanical fluid control device includes at least one flow guiding unit. The at least one flow guiding unit includes an inlet plate, a substrate, a resonance membrane, an actuating membrane and an outlet plate sequentially stacked. A first chamber is defined between the resonance membrane and the actuating membrane and a second chamber is defined between the actuating membrane and the outlet plate. While the piezoelectric membrane of the flow guiding unit drives the actuating membrane, a fluid is inhaled into the convergence chamber via the inlet of the inlet plate, transported into the first chamber via the central aperture of the resonance membrane, transported into the second chamber via a vacant space of the actuating membrane, and discharged out from the outlet of the outlet plate, so as to control the fluid to flow.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: January 5, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Ying-Lun Chang, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Yung-Lung Han, Chi-Feng Huang
  • Patent number: 10800653
    Abstract: A manufacturing method of micro channel structure is disclosed and includes steps of: providing a substrate; depositing and etching to form a first insulation layer; depositing and etching to form a supporting layer; depositing and etching to form a valve layer; depositing and etching to form a second insulation layer; depositing and etching to form a vibration layer, a lower electrode layer and a piezoelectric actuating layer; providing a photoresist layer and depositing and etching to form a plurality of bonding pads; depositing and etching to from a mask layer; etching to form a first chamber; and etching to form a second chamber.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: October 13, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Publication number: 20200309111
    Abstract: A micro-electromechanical systems pump includes a first substrate, a first oxide layer, a second substrate, and a piezoelectric element. The first oxide layer is stacked on the first substrate. The second substrate is combined with the first substrate, and the second substrate includes a silicon wafer layer, a second oxide layer, and a silicon material layer. The silicon wafer layer has an actuation portion. The actuation portion is circular and has a maximum stress value and an actuation stress value. The second oxide layer is formed on the silicon wafer layer. The silicon material layer is located at the second oxide layer and is combined with the first oxide layer. The piezoelectric element is stacked on the actuation portion, and has a piezoelectric stress value. The maximum stress value is greater than the actuation stress value, and the actuation stress value is greater than the piezoelectric stress value.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 1, 2020
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Publication number: 20200240400
    Abstract: A MEMS pump module includes a MEMS chip, at least one signal electrode, a plurality of MEMS pumps and a plurality of switch units. The MEMS chip comprises a chip body. The signal electrode is disposed on the chip body. Each of the MEMS pumps comprises a first electrode and a second electrode. The second electrode is electrically connected to the signal electrode. The switch units are electrically connected to the first electrodes of the MEMS pumps. A modulation voltage is received by the at least one signal electrode and then is transmitted to the second electrodes of the MEMS pumps. The on-off actions of MEMS pumps are controlled by the plurality of switch units.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 30, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Publication number: 20200224791
    Abstract: A micro fluid actuator includes a first substrate, a chamber layer, a vibration layer, a first metal layer, a piezoelectric actuation layer, a second metal layer, a second substrate, an inlet layer, a resonance layer and an aperture array plate. The first substrate includes a plurality of first outflow apertures and a plurality of second outflow apertures. The chamber layer includes a storage chamber. The second metal layer includes an upper electrode pad and a lower electrode pad. While driving power having different phase charges is provided to the upper electrode pad and the lower electrode pad to drive and control the vibration layer to displace in a reciprocating manner, the fluid is inhaled from the exterior through the inlet layer, converged to the storage chamber, compressed and pushes out the aperture array plate, and then is discharged out from the micro fluid actuator to achieve fluid transportation.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Hsuan-Kai Chen
  • Publication number: 20200182233
    Abstract: A MEMS pump module includes a microprocessor and a MEMS chip. The microprocessor outputs a constant voltage and a variable voltage. The MEMS chip includes a chip body, a plurality of MEMS pumps and at least one common electrode. The plurality of MEMS pumps are disposed on the chip body, and each MEMS pump includes a first electrode and a second electrode. The at least one common electrode is disposed on the chip body and electrically connected to the second electrodes of the plurality of MEMS pumps. The microprocessor is electrically connected to the first electrodes of the plurality of MEMS pumps and the at least one common electrode so as to transmit the constant voltage to the at least one common electrode and transmit the variable voltage to the first electrodes of the plurality of MEMS pumps.
    Type: Application
    Filed: November 20, 2019
    Publication date: June 11, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Publication number: 20200166155
    Abstract: A micro fluid actuator includes an orifice layer, a flow channel layer, a substrate, a chamber layer, a vibration layer, a lower electrode layer, a piezoelectric actuation layer and an upper electrode layer, which are stacked sequentially. An outflow aperture, a plurality of first inflow apertures and a second inflow aperture are formed in the substrate by an etching process. A storage chamber is formed in the chamber layer by the etching process. An outflow opening and an inflow opening are formed in the orifice layer by the etching process. An outflow channel, an inflow channel and a plurality of columnar structures are formed in the flow channel layer by a lithography process. By providing driving power which have different phases to the upper electrode layer and the lower electrode layer, the vibration layer is driven to displace in a reciprocating manner, so as to achieve fluid transportation.
    Type: Application
    Filed: October 23, 2019
    Publication date: May 28, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Hsuan-Kai Chen
  • Publication number: 20200139368
    Abstract: A micro channel structure includes a substrate, a supporting layer, a valve layer, a second insulation layer, a vibration layer and a bonding-pad layer. A flow channel is formed on the substrate. A conductive part and a movable part are formed on the supporting layer and the valve layer, respectively. A first chamber is formed at the interior of a base part and communicates to the hollow aperture. A supporting part is formed on the second insulation layer. A second chamber is formed at the interior of the supporting layer and communicates to the first chamber through the hollow aperture. A suspension part is formed on the vibration layer. By providing driving power sources having different phases to the bonding-pad layer, the suspension part moves upwardly and downwardly, and a relative displacement is generated between the movable part and the conductive part, to achieve fluid transportation.
    Type: Application
    Filed: October 23, 2019
    Publication date: May 7, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Publication number: 20200140264
    Abstract: A manufacturing method of micro channel structure is disclosed and includes steps of: providing a substrate; depositing and etching to form a first insulation layer; depositing and etching to form a supporting layer; depositing and etching to form a valve layer; depositing and etching to form a second insulation layer; depositing and etching to form a vibration layer, a lower electrode layer and a piezoelectric actuating layer; providing a photoresist layer and depositing and etching to form a plurality of bonding pads; depositing and etching to from a mask layer; etching to form a first chamber; and etching to form a second chamber.
    Type: Application
    Filed: October 23, 2019
    Publication date: May 7, 2020
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Publication number: 20200088185
    Abstract: A MEMS pump includes a first substrate, a first oxide layer, a second substrate, a second oxide layer, a third substrate and a piezoelectric element sequentially stacked to form the entire structure of the MEMS pump. The first substrate has a first thickness and at least one inlet aperture. The first oxide layer has at least one fluid inlet channel and a convergence chamber, wherein the fluid inlet channel communicates with the convergence chamber and the inlet aperture. The second substrate has a second thickness and a through hole, and the through hole is misaligned with the inlet aperture and communicates with the convergence chamber. The second oxide layer has a first chamber with a concave central portion. The third substrate has a third thickness and a plurality of gas flow channels, wherein the gas flow channels are misaligned with the through hole.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Applicant: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Publication number: 20190101939
    Abstract: The present disclosure provides a control method of a fluid device. The control method includes the steps of (a) providing the fluid device, which includes a plurality of flow guiding units manufactured by a micro-electro-mechanical-system process; (b) dividing the flow guiding units into a plurality of groups, which are electrically connected to and controlled by a control module; and (c) generating a driving signal by the control module for a corresponding one of the groups, wherein the control module generates a high level signal to a specific one of the groups, so that the flow guiding units of the specific one of the groups are driven to transport fluid, and thereby controlling the fluid device to discharge a specific amount of fluid.
    Type: Application
    Filed: August 23, 2018
    Publication date: April 4, 2019
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Rong-Ho YU, Cheng-Ming CHANG, Hsien-Chung TAI, Wen-Hsiung LIAO, Chang-Yen TSAI
  • Publication number: 20190085839
    Abstract: A gas transportation device is provided and includes a plurality of flow guiding units. Each of the flow guiding units includes an inlet plate, a substrate, a resonance plate, an actuating plate, a piezoelectric component, an outlet plate and a valve, which are sequentially stacked. A convergence chamber is formed between the resonance plate and the inlet plate. The actuating plate has a suspension part, an outer frame and a plurality of interspaces. The piezoelectric component is attached on a surface of the suspension part. Gas is inhaled into the convergence chamber via an inlet aperture of the inlet plate, is transported into a first chamber via a central aperture of the resonance plate, is further transported into a second chamber via the interspaces, and is discharged out from an outlet aperture of the outlet plate. The gas is transported by the flow guiding units disposed in a specific arrangement.
    Type: Application
    Filed: August 8, 2018
    Publication date: March 21, 2019
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Chi-Feng HUANG, Wei-Ming LEE, Hsien-Chung TAI, Yung-Lung HAN
  • Publication number: 20190063417
    Abstract: A micro-electromechanical fluid control device includes at least one flow guiding unit. The at least one flow guiding unit includes an inlet plate, a substrate, a resonance membrane, an actuating membrane and an outlet plate sequentially stacked. A first chamber is defined between the resonance membrane and the actuating membrane and a second chamber is defined between the actuating membrane and the outlet plate. While the piezoelectric membrane of the flow guiding unit drives the actuating membrane, a fluid is inhaled into the convergence chamber via the inlet of the inlet plate, transported into the first chamber via the central aperture of the resonance membrane, transported into the second chamber via a vacant space of the actuating membrane, and discharged out from the outlet of the outlet plate, so as to control the fluid to flow.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 28, 2019
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan MOU, Ta-Wei HSUEH, Ying-Lun CHANG, Rong-Ho YU, Cheng-Ming CHANG, Hsien-Chung TAI, Wen-Hsiung LIAO, Yung-Lung HAN, Chi-Feng HUANG