Patents Assigned to Wuxi China Resources Huajing Microelectronic Co., Ltd.
  • Publication number: 20240088273
    Abstract: A vertical semiconductor structure with an integrated sampling structure and a method for manufacturing the same; the vertical semiconductor structure includes a vertical-semiconductor-structure unit cell, a sampling unit cell, a control electrode, a first electrode, a second electrode, and a sampling electrode. The sampling electrode performs real-time sampling of a voltage difference between the first electrode and the second electrode; a PN junction is formed between a first/second P-type diffusion region and a second N-type base region, which forms a potential barrier blocking electron emission from the sampling electrode. Therefore, a voltage signal of the sampling electrode is input into a protection circuit, which detects whether the vertical-semiconductor-structure unit cell is desaturated when it determines that the unit cell is in the open state. Second, a sampling resistor is connected between the sampling electrode and the first electrode to ensure the stable operation of the sampling unit cell.
    Type: Application
    Filed: May 20, 2022
    Publication date: March 14, 2024
    Applicant: WUXI CHINA RESOURCES HUAJING MICROELECTRONICS CO., LTD.
    Inventors: PENGFEI JIA, QIANG RUI, WEI LI
  • Patent number: 11437510
    Abstract: The present disclosure discloses a trench MOSFET and a method of manufacturing trench MOSFET. The trench MOSFET includes a substrate, an epitaxial layer, a plurality of trenches, and body region; the substrate has a first conductivity type; the epitaxial layer has the first conductivity type; the plurality of trenches are formed in the epitaxial layer, and at least two of the plurality of trenches are communicated with each other a gate structure is provided in the trench; the body region has a second conductivity type and has a second conductivity type and is disposed among the plurality of trenches.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 6, 2022
    Assignee: WUXI CHINA RESOURCES HUAJING MICROELECTRONICS CO., LTD.
    Inventors: Xuan Xiao, Jun Ye, Jie Li
  • Patent number: 9391182
    Abstract: A Trench Insulated Gate Bipolar Transistor (IGBT) and a manufacture method thereof are provided by the present invention, which belongs to the field of IGBT technical field. The manufacture method includes following steps: (1) preparing a semiconductor substrate; (2) forming an epitaxial layer grow on a first side of the semiconductor substrate by epitaxial growth; (3) preparing and forming a gate and an emitter of the Trench Insulated Gate Bipolar Transistor on a second side of the semiconductor substrate; (4) thinning the epitaxial layer to form a collector region; (5) metalizing the collector region to form a collector. The cost of the manufacture method is low and the performance of the Trench IGBT formed by the manufacture method is good.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: July 12, 2016
    Assignee: WUXI CHINA RESOURCES HUAJING MICROELECTRONICS CO., LTD.
    Inventors: Hongxiang Tang, Yongsheng Sun, Jianxin Ji, Weiqing Ma
  • Patent number: 9356213
    Abstract: A manufacturing method of a light-emitting diode device. The light-emitting diode device comprises: a substrate (1); an epitaxial layer at one side of the substrate (1) and comprising an N-type layer (2), a P-type layer (4), and an active layer (3) between the N-type layer (2) and the P-type layer (4); an N-type electrode (5); a P-type electrode (7); an adhesive layer (8); and a patterned substrate (9). The light-emitting diode device further comprises an insulating layer (6) between the N-type electrode (5) and the P-type electrode (7), the insulating layer (6) electrically insulating the N-type electrode (5) and the P-type electrode (7). In the manufacturing method thereof, light-emitting efficiency and luminous efficiency of the light-emitting diode device can be improved, wiring is easier as compared with conventional chips, and the manufacturing process can be optimized.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 31, 2016
    Assignee: WUXI CHINA RESOURCES HUAJING MICROELECTRONICS CO., LTD.
    Inventors: Lei Wang, Guoqi Li, Zhiyan Yu, Rongsheng Pu
  • Patent number: 9172002
    Abstract: A light-emitting diode device and a manufacturing method thereof. The light-emitting diode device includes: a substrate (1); an epitaxial layer at one side of the substrate (1) and including an N-type layer (2), a P-type layer (4), and an active layer (3) between the N-type layer (2) and the P-type layer (4); an N-type electrode (5); a P-type electrode (7); an adhesive layer (8); and a patterned substrate (9). The light-emitting diode device further includes an insulating layer (6) between the N-type electrode (5) and the P-type electrode (7), the insulating layer (6) electrically insulating the N-type electrode (5) and the P-type electrode (7). In the light-emitting diode device and the manufacturing method thereof, light-emitting efficiency and luminous efficiency of the light-emitting diode device can be improved, wiring is easier as compared with conventional chips, and the manufacturing process can be optimized.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 27, 2015
    Assignee: Wuxi China Resources Huajing Microelectronic Co., Ltd.
    Inventors: Lei Wang, Guoqi Li, Zhiyan Yu, Rongsheng Pu
  • Publication number: 20140322900
    Abstract: A low-pressure chemical vapor deposition (LPCVD) apparatus and a thin-film deposition method thereof The apparatus comprises a reaction furnace, having reaction gas input pipelines respectively arranged at a furnace opening part and a furnace tail part. During thin film deposition, each reaction gas is synchronously introduced into the reaction furnace through the input pipeline at the furnace opening part and the input pipeline at the furnace tail part.
    Type: Application
    Filed: December 3, 2012
    Publication date: October 30, 2014
    Applicant: Wuxi China Resources Huajing Microelectronics Co., Ltd
    Inventors: Xunhui Wang, Xiao Wu, Qijun Guo, Jianchao Fan