Patents by Inventor Ching Wen Liu

Ching Wen Liu 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: 20250096086
    Abstract: A semiconductor module includes a substrate, at least one chip, at least one signal assembly, a first molding compound, and a second molding compound. The chip is disposed on the substrate and electrically connected to the substrate. The signal assembly is disposed on the substrate in a normal direction of the substrate and electrically connected to the substrate. The first molding compound is disposed on the substrate. The first molding compound at least covers the chip and has at least one opening, and the opening exposes the signal assembly. The second molding compound is disposed on the substrate and fills the opening. The second molding compound is located between the signal assembly and the first molding compound, and covers the signal assembly. At least one contact interface is formed between the second molding compound and the first molding compound.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 20, 2025
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20240282652
    Abstract: Disclosed are an energy conversion module and an energy conversion device. The energy conversion module includes an encapsulation structure and an integrated module packaged therein, the integrated module includes a trace, a power chip, a transistor control element and an energy storage device. The trace includes at least two electrodes, one is exposed from a first surface of the encapsulation structure, and the other is exposed from a second surface of the encapsulation structure. The first surface is opposite to the second surface. The power chip is respectively connected to the two electrodes of the trace. The transistor control element controls the power chip to perform energy conversion through the trace. The energy storage device supplies energy to the transistor control element through the trace.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 22, 2024
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20240276656
    Abstract: A circuit substrate includes a base material, a first electrode, and a second electrode. The base material has an upper side and a lower side opposite to each other in a length direction. The first electrode extends and is configured on the base material along the length direction. The second electrode is configured beside the first electrode and includes a first portion and a second portion connected to each other. The first portion is configured on the base material along the length direction. The second portion is configured on the base material along a width direction and is located between the upper side and the first electrode. A cross-sectional width of the first portion becomes larger from the lower side to the upper side.
    Type: Application
    Filed: March 7, 2023
    Publication date: August 15, 2024
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20240274515
    Abstract: A power semiconductor package signal connection component includes a cylinder having a first through hole and two bases respectively disposed on opposite sides of the cylinder. Each base includes a continuous protrusion pattern and has a flat surface, a curved surface, and a second through hole. The flat surface is connected to the curved surface, and a first side of the curved surface is connected to the cylinder. The second through hole runs through the curved surface and communicates with the first through hole. The continuous protrusion pattern is connected to a second side of the curved surface and is located on the flat surface.
    Type: Application
    Filed: March 5, 2023
    Publication date: August 15, 2024
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu, Ting-Ling Chen
  • Publication number: 20240274494
    Abstract: A heat dissipation structure includes a substrate and an annular groove. The substrate has an upper surface and a lower surface opposite to each other. The annular groove is configured on the upper surface of the substrate to divide the substrate into a configuration area and a periphery area. The annular groove is located between the configuration area and the periphery area. A depth of the annular groove is less than or equal to half of a thickness of the substrate.
    Type: Application
    Filed: March 7, 2023
    Publication date: August 15, 2024
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: 11810835
    Abstract: An intelligent power module packaging structure includes an insulated heat dissipation substrate, a plurality of power devices, a control chip, a lead frame, and an encapsulant. The insulated heat dissipation substrate has a first surface and a second surface opposite to the first surface. The power devices are disposed on the first surface. The control chip is disposed on the first surface. The control chip provides a gate driver function for driving the power devices and a pulse width modulation function. The lead frame is bonded onto the first surface. The power devices are electrically connected to the control chip and the lead frame. The encapsulant at least encapsulates the power devices, the control chip, and a portion of the lead frame, and the second surface is entirely or partially exposed outside the encapsulant.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: November 7, 2023
    Assignee: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20230056414
    Abstract: A 3D cell culture gel kit and a 3D cell culture method using the same are provided. The 3D cell culture gel kit includes a gel material A, a buffer solution C, and a buffer solution D. The 3D cell culture method includes the steps of adding cells into a mixed solution containing the gel material A and setting the mixed solution at low temperature to get gel containing the cells. Then adding the buffer solution C to the gel for performing crosslinking. Next removing the buffer solution C and adding a growth medium. Let stand until the cells form spheroids in the gel. Moreover, the buffer solution D is used to dissolve the gel and the cells cultured are taken out for analysis. Thereby the 3D cell culture gel kit is convenient to use and suitable for 3D culture of a plurality of cell lines.
    Type: Application
    Filed: August 26, 2020
    Publication date: February 23, 2023
    Inventors: YU-CHUN WU, CHING-WEN LIU, WEI-YU LIN
  • Patent number: 11406990
    Abstract: An electrostatic-precipitator air cleaner includes a base, a shell, a fan, a barrel, a high-voltage discharge module, a distribution module and a precipitation module. The shell is connected to the base. The fan is connected to an upper portion of the shell. The barrel is connected to the shell above the base. The high-voltage discharge module is connected to the base and inserted in the barrel. The distribution module is connected to the high-voltage discharge module. The precipitation module is inserted in the barrel.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: August 9, 2022
    Inventor: Ching-Wen Liu
  • Publication number: 20220068754
    Abstract: An intelligent power module packaging structure includes an insulated heat dissipation substrate, a plurality of power devices, a control chip, a lead frame, and an encapsulant. The insulated heat dissipation substrate has a first surface and a second surface opposite to the first surface. The power devices are disposed on the first surface. The control chip is disposed on the first surface. The control chip provides a gate driver function for driving the power devices and a pulse width modulation function. The lead frame is bonded onto the first surface. The power devices are electrically connected to the control chip and the lead frame. The encapsulant at least encapsulates the power devices, the control chip, and a portion of the lead frame, and the second surface is entirely or partially exposed outside the encapsulant.
    Type: Application
    Filed: October 28, 2020
    Publication date: March 3, 2022
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: 11232992
    Abstract: A power device package structure including a first substrate, a second substrate, at least one power device, and a package is provided. A heat conductivity of the first substrate is greater than 200 Wm?1K?1. The power device is disposed on the first substrate, and the second substrate is disposed under the first substrate. A heat capacity of the second substrate is greater than that of the first substrate. The package encapsulates the first substrate, the second substrate, and the power device.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: January 25, 2022
    Assignee: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: 11183439
    Abstract: A package structure for power devices includes a heat dissipation insulating substrate, a plurality of power devices, a heat dissipation baseplate, and a thermal interface layer. The heat dissipation insulating substrate has a first surface and a second surface which are opposite to each other, and the power devices are coupled to the first surface of the heat dissipation insulating substrate. The heat dissipation baseplate is disposed at the second surface of the heat dissipation insulating substrate, wherein at least one of a surface of the heat dissipation baseplate and the second surface of the heat dissipation insulating substrate has at least one plateau, and the plateau is at least disposed within a projected area of the plurality of power devices. The thermal interface layer is disposed between the second surface of the heat dissipation insulating substrate and the surface of the heat dissipation baseplate.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 23, 2021
    Assignee: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: 11177188
    Abstract: A chip packaging structure includes a heat dissipation substrate, a pre-molded chipset, an interconnection and a second encapsulant. The pre-molded chipset is located on the heat dissipation substrate. The interconnection is located in the packaging structure and electrically connects the heat dissipation substrate and the pre-molded chipset. The second encapsulant covers part of the heat dissipation substrate, part or all of the interconnection, and part or all of the pre-molded chipset. The pre-molded chipset includes a thermally conductive substrate, at least two chips, a patterned circuit, and a first encapsulant. The patterned circuit is located in the pre-molded chipset. At least two chips are electrically connected by the patterned circuit. The first encapsulant covers at least two chips and part or all of the patterned circuit. A manufacturing method of a chip packaging structure is also provided.
    Type: Grant
    Filed: September 13, 2020
    Date of Patent: November 16, 2021
    Assignee: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20210130074
    Abstract: Disclosed is a thermal insulating container with a combination inner liner, which includes a cup, surrounded with a storage space and forming an open end. The inner edge of the open end has an inner locking part. An inner liner is surrounded with a bearing space and forms an opening end, wherein the inner liner is fitted in the storage space, and the opening end is provided with a screw thread section. There is a connecting part under the screw thread section. An external member is assembled on the connecting part, and there is an outer locking part on the external surface of the external member. The outer locking part is assembled with the inner locking part of the cup body. A cover has an edge which is a circumferential wall extended downwards, and is provided with a ridge section screwed on/off the screw thread section of the inner liner.
    Type: Application
    Filed: June 3, 2020
    Publication date: May 6, 2021
    Inventor: Ching-Wen LIU
  • Publication number: 20210074604
    Abstract: A package structure for power devices includes a heat dissipation insulating substrate, a plurality of power devices, a heat dissipation baseplate, and a thermal interface layer. The heat dissipation insulating substrate has a first surface and a second surface which are opposite to each other, and the power devices are coupled to the first surface of the heat dissipation insulating substrate. The heat dissipation baseplate is disposed at the second surface of the heat dissipation insulating substrate, wherein at least one of a surface of the heat dissipation baseplate and the second surface of the heat dissipation insulating substrate has at least one plateau, and the plateau is at least disposed within a projected area of the plurality of power devices. The thermal interface layer is disposed between the second surface of the heat dissipation insulating substrate and the surface of the heat dissipation baseplate.
    Type: Application
    Filed: October 30, 2019
    Publication date: March 11, 2021
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: 10935043
    Abstract: An assembly of a blade assembly bracket and a blade of a ceiling fan includes a blade assembly bracket, an adaptor, and a fan blade. The adaptor is pivoted to the blade assembly bracket, and the fan blade is pivoted to the adaptor. When the adaptor is pivoted relative to the blade assembly bracket, the adaptor can drive the rotatable holder simultaneously to switch a position of the fan blade between an initial position and a rotational position, so as to change an inclination angle of the fan blade, and make the fan blade unfold outwardly. When the operation of the ceil fan is stopped, the adaptor is operated reversely to make the fan blade fold from the outwardly-unfolded state.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: March 2, 2021
    Assignee: Pan Air Electric Co., Ltd.
    Inventor: Ching-Wen Liu
  • Publication number: 20210050320
    Abstract: A package structure for power devices includes a heat dissipation insulating substrate, a plurality of power devices, at least one conductive clip, and a heat dissipation baseplate. The heat dissipation insulating substrate has a first surface and a second surface opposite thereto, and the power devices form a bridge circuit topology and are disposed on the first surface, wherein active regions of at least one of the power devices are flip-chip bonded to the first surface. The conductive clip is configured to electrically connect at least one of the power devices to the first surface, and the heat dissipation baseplate is disposed at the second surface of the heat dissipation insulating substrate.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 18, 2021
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Publication number: 20200306766
    Abstract: An electrostatic-precipitator air cleaner includes a base, a shell, a fan, a barrel, a high-voltage discharge module, a distribution module and a precipitation module. The shell is connected to the base. The fan is connected to an upper portion of the shell. The barrel is connected to the shell above the base. The high-voltage discharge module is connected to the base and inserted in the barrel. The distribution module is connected to the high-voltage discharge module. The precipitation module is inserted in the barrel.
    Type: Application
    Filed: January 6, 2020
    Publication date: October 1, 2020
    Inventor: Ching-Wen Liu
  • Publication number: 20190393111
    Abstract: A power device package structure including a first substrate, a second substrate, at least one power device, and a package is provided. A heat conductivity of the first substrate is greater than 200 Wm?1K?1. The power device is disposed on the first substrate, and the second substrate is disposed under the first substrate. A heat capacity of the second substrate is greater than that of the first substrate. The package encapsulates the first substrate, the second substrate, and the power device.
    Type: Application
    Filed: September 7, 2018
    Publication date: December 26, 2019
    Applicant: ACTRON TECHNOLOGY CORPORATION
    Inventors: Hsin-Chang Tsai, Ching-Wen Liu
  • Patent number: D785145
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 25, 2017
    Inventor: Ching-Wen Liu
  • Patent number: D952816
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: May 24, 2022
    Inventor: Ching-Wen Liu