Patents Assigned to MIRAMEMS SENSING TECHNOLOGY CO., LTD
  • Patent number: 11802768
    Abstract: A MEMS multiaxial angular rate sensor includes a substrate and a MEMS wafer layer correspondingly deposited and parallel to each other, and a plurality of anchors coupled to the MEMS wafer layer and fixing the MEMS wafer layer onto the substrate. The MEMS wafer layer includes at least two drive-sensing structures, a third driving ring and two pendulum masses. Each of the drive-sensing structures includes a driving ring, a plurality of driving comb pair structures and a plurality of sensing proof masses respectively coupled to the corresponding driving ring. A third driving ring is coupled to and deposited between the two driving rings of the two drive-sensing structures. In a driving mode, those driving comb pair structures drive the corresponding driving rings to perform periodical rotation motions, and the two driving rings in periodical rotation motions further actuate the third driving ring to perform periodical rotation motion together.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: October 31, 2023
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD.
    Inventor: Li-Tien Tseng
  • Patent number: 11518673
    Abstract: A method for manufacturing a MEMS device includes disposing at least one bonding portion having a smaller bonding area in a region where an airtight chamber will be formed, and disposing a metal getter on a bonding surface of the bonding portion. According to this structure, when substrates are bonded to define the airtight chamber, the metal getter is squeezed out of the bonding position due to the larger bonding pressure of the bonding portion with a smaller bonding area. Then, the metal getter is activated to absorb the moisture in the airtight chamber. According to the above process, no additional procedure is needed to remove the moisture in the airtight chamber. A MEMS device manufactured by the above manufacturing method is also disclosed.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 6, 2022
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Yu-Hao Chien, Li-Tien Tseng, Chih-Liang Kuo
  • Patent number: 11312624
    Abstract: A manufacturing method of microelectromechanical system (MEMS) device includes providing a first, a second and a third substrates, wherein the first substrate includes a first and a second circuit, the second substrate includes second and third connection areas, and the third substrate includes first connection areas. Second grooves and a dividing groove are formed on the fourth surface of the third substrate. The second and third substrates are bonded to make the first and the second connection areas correspondingly connect with each other. The second substrate is divided to form electrically isolating first and second movable elements. The first movable element is spatial separated from the third substrate and corresponding to the second groove. The second movable element is connected to the third substrate. The first and the second substrates are bonded to make the fourth and the third connection areas connect correspondingly.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 26, 2022
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Li-Tien Tseng, Yu-Hao Chien
  • Patent number: 11137296
    Abstract: A force sensor includes a package substrate, a MEMS-based device, a package body and a force touching member. The MEMS-based device is disposed on the package substrate and electrically connected with the package substrate. The package body encapsulates the MEMS-based device. The force touching member including a rod is disposed on the package body and corresponding to the MEMS-based device. The force sensor allows a greater assembly tolerance.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 5, 2021
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Li-Tien Tseng, Yu-Hao Chien, Chih-Liang Kuo, Yu-Te Yeh
  • Patent number: 10538428
    Abstract: A method for manufacturing a MEMS device includes disposing at least one bonding portion having a smaller bonding area in a region where an airtight chamber will be formed, and disposing a metal getter on a bonding surface of the bonding portion. According to this structure, when substrates are bonded to define the airtight chamber, the metal getter is squeezed out of the bonding position due to the larger bonding pressure of the bonding portion with a smaller bonding area. Then, the metal getter is activated to absorb the moisture in the airtight chamber. According to the above process, no additional procedure is needed to remove the moisture in the airtight chamber. A MEMS device manufactured by the above manufacturing method is also disclosed.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 21, 2020
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Yu-Hao Chien, Li-Tien Tseng, Chih-Liang Kuo
  • Patent number: 10486962
    Abstract: A force sensor comprises a first substrate, a second substrate, a third substrate, and a package body. The first substrate includes a fixed electrode, at least one first conductive contact, and at least one second conductive contact. The second substrate is disposed on the first substrate and electrically connected to the first conductive contact of the first substrate. The second substrate includes a micro-electro-mechanical system (MEMS) element corresponding to the fixed electrode. The third substrate is disposed on the second substrate and includes a pillar connected to the MEMS element. The package body covers the third substrate. The foregoing force sensor has better reliability.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: November 26, 2019
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Li-Tien Tseng, Yu-Hao Chien, Chih-Liang Kuo, Yu-Te Yeh
  • Patent number: 10281350
    Abstract: A pressure sensor includes a bearing region and a frame which is spatially separated from the bearing region, wherein a sensing element of the pressure sensor is produced on the bearing region. When the aforementioned pressure sensor is mounted on a package substrate, the stress from the package substrate or a circuit board can be isolated by a space between the bearing region and the frame to avoid unexpected deformation on the sensing element.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 7, 2019
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD.
    Inventor: Li-Tien Tseng
  • Patent number: 10266391
    Abstract: A microelectromechanical system (MEMS) device includes a processing die, a MEMS die and a plurality of wires. The MEMS die includes a substrate and a MEMS element. The substrate has a first surface, and the first surface includes a circuit and a plurality of first conductive contacts electrically connected with the circuit. The MEMS element has a second surface, a third surface and at least one second conductive contact, wherein the MEMS element is disposed on the first surface of the substrate with the second surface facing the substrate, and the at least one second conductive contact is disposed on the third surface of the MEMS element. The wires electrically connect the substrate and the MEMS element of the MEMS die to the processing die through the first conductive contacts and the second conductive contact respectively.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 23, 2019
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: I-Heng Chou, Li-Tien Tseng, Chih-Liang Kuo
  • Patent number: 9809447
    Abstract: A pressure sensor using the MEMS device comprises an airtight ring surrounding a chamber defined by the first substrate and the second substrate. The airtight ring extends from the upper surface of the second substrate to the interface between the first substrate and the second substrate and further breaks out the interface. The pressure sensor utilizes the airtight ring to retain the airtightness of the chamber.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: November 7, 2017
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD.
    Inventors: Yu-Hao Chien, Li-Tien Tseng
  • Patent number: 9598275
    Abstract: A pressure sensor using the MEMS device comprises an airtight ring surrounding a chamber defined by the first substrate and the second substrate. The airtight ring extends from the upper surface of the second substrate to the surface between the first substrate and the second substrate and further breaks out the surface. The pressure sensor utilizes the airtight ring to retain the airtightness of the chamber. The manufacture method of the pressure sensor is also disclosed.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 21, 2017
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Yu-Hao Chien, Li-Tien Tseng
  • Patent number: 9278853
    Abstract: A manufacturing process of a MEMS device divides a substrate for fabricating a MEMS component into two electrically isolated regions, so that the MEMS component and the circuit disposed on its surface could connect electrically with another substrate below respectively through the corresponding conducing regions, whereby the configuration of the electrical conducting paths and the manufacturing process are simplified. A MEMS device manufactured by using the aforementioned process is also disclosed herein.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: March 8, 2016
    Assignee: MiraMEMS Sensing Technology Co., Ltd.
    Inventors: Yu-Hao Chien, Hua-Shu Wu, Shih-Yung Chung, Li-Tien Tseng, Yu-Te Yeh
  • Patent number: 9227832
    Abstract: A pressure sensor using the MEMS element and the manufacture method thereof utilize the semiconductor processes to form the micro channel connecting to the chamber, open the micro channel, coat the anti-sticking layer on the inner surface of the chamber, and then seal the micro channel to keep the chamber airtight. Therefore, the manufacture method may essentially simplify the process to coat the anti-sticking layer on the inner surface of the airtight chamber to prevent the sticking and failing of the movable MEMS element.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: January 5, 2016
    Assignee: MIRAMEMS SENSING TECHNOLOGY CO., LTD
    Inventors: Yu-Hao Chien, Li-Tien Tseng