Patents Examined by Nikolay K Yushin
  • Patent number: 11355647
    Abstract: A thin film transistor includes an active layer, a source electrode and a drain electrode. The active layer includes a conductive region and the conductive region is between the source electrode and the drain electrode and is spaced apart from at least one of the source electrode and the drain electrode.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: June 7, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yingbin Hu, Ce Zhao, Dongfang Wang, Bin Zhou, Jun Liu, Yuankui Ding, Wei Li
  • Patent number: 11355519
    Abstract: The present disclosure provides an array substrate, a manufacturing method of the array substrate, and a display device. The array substrate includes a hydrogen ion film formed between an active layer and a source/drain electrode of a low temperature poly-silicon thin film transistor, and a hole is formed in a region of the hydrogen ion film where a metal-oxide-semiconductor thin film transistor is disposed. Based on the hydrogen ion film, the electrical performance and stability of the low temperature poly-silicon thin film transistor are improved. Furthermore, hydrogen elements are not diffused to the region where the metal-oxide-semiconductor thin film transistor is disposed.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 7, 2022
    Inventors: Chunhsiung Fang, Yuanchun Wu, Poyen Lu
  • Patent number: 11355520
    Abstract: The purpose of the present invention is to improve reliability of the TFT of the oxide semiconductor. The feature of the invention is: A display device comprising: a substrate including a display area where plural pixels are formed, the pixel includes a first TFT of a first oxide semiconductor, a first gate insulating film is formed under the first oxide semiconductor, a first gate electrode is formed under the first gate insulating film, an interlayer insulating film is formed on the first oxide semiconductor; a drain wiring, which connects with the first oxide semiconductor, and a source wiring, which connects with the first oxide semiconductor, are formed on the interlayer insulating film; the drain wiring or the source wiring is a laminated structure of a second oxide semiconductor and a first metal, the second oxide semiconductor is under the first metal.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: June 7, 2022
    Assignee: Japan Display Inc.
    Inventor: Yohei Yamaguchi
  • Patent number: 11355530
    Abstract: A semiconductor device including: a first insulator in which an opening is formed; a first conductor positioned in the opening; a first oxide over the first insulator; a second oxide over the first oxide; a third oxide and a fourth oxide over the second oxide; a second conductor over the third oxide and the first conductor; a third conductor over the fourth oxide; a fifth oxide over the second oxide; a second insulator over the fifth oxide; and a fourth conductor positioned over the second insulator and overlapping with the fifth oxide. The fifth oxide is in contact with each of a side surface of the third oxide and a side surface of the fourth oxide. The conductivity of the third oxide is higher than the conductivity of the second oxide. The second conductor is in contact with the top surface of the first conductor.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: June 7, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Yuichi Sato, Hitoshi Nakayama
  • Patent number: 11348949
    Abstract: An object is to provide a semiconductor device having a structure with which parasitic capacitance between wirings can be sufficiently reduced. An oxide insulating layer serving as a channel protective layer is formed over part of an oxide semiconductor layer overlapping with a gate electrode layer. In the same step as formation of the oxide insulating layer, an oxide insulating layer covering a peripheral portion of the oxide semiconductor layer is formed. The oxide insulating layer which covers the peripheral portion of the oxide semiconductor layer is provided to increase the distance between the gate electrode layer and a wiring layer formed above or in the periphery of the gate electrode layer, whereby parasitic capacitance is reduced.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: May 31, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hiroki Ohara, Toshinari Sasaki, Kosei Noda, Hideaki Kuwabara
  • Patent number: 11349006
    Abstract: A semiconductor device is fabricated by a method including the following steps: a first step of forming a semiconductor film containing a metal oxide over an insulating layer; a second step of forming a conductive film over the semiconductor film; a third step of forming a first resist mask over the conductive film and etching the conductive film to form a first conductive layer and to expose a top surface of the semiconductor film that is not covered with the first conductive layer; and a fourth step of forming a second resist mask that covers a top surface and a side surface of the first conductive layer and part of the top surface of the semiconductor film and etching the semiconductor film to form a semiconductor layer and to expose a top surface of the insulating layer that is not covered with the semiconductor layer.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 31, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasutaka Nakazawa, Kenichi Okazaki, Takayuki Ohide, Rai Sato
  • Patent number: 11348948
    Abstract: The purpose of the present invention is to realize the display device having thin film transistors of the oxide semiconductor of stable characteristics. An example of the concrete structure is that: A display device having a substrate including a display area, plural pixels formed in the display area, the pixel includes a first thin film transistor having an oxide semiconductor film, a first insulating film made of a first silicon oxide on a first side of the oxide semiconductor film, a second insulating film made of a second silicon oxide on a second side of the oxide semiconductor film, wherein oxygen desorption amount per unit area from the first insulating film is larger than that from the second insulating film, when measured by TDS (Thermal Desorption Spectrometry) provided M/z=32 and a measuring range in temperature is from 100 centigrade to 500 centigrade.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 31, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Akihiro Hanada, Yohei Yamaguchi, Hirokazu Watanabe, Isao Suzumura
  • Patent number: 11342476
    Abstract: An optical device includes a substrate, a light receiving component, an encapsulant, a coupling layer and a light shielding layer. The light receiving component is disposed on the substrate. The encapsulant covers the light receiving component. The coupling layer is disposed on at least a portion of the encapsulant. The light shielding layer is disposed on the coupling layer.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: May 24, 2022
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventor: Jenchun Chen
  • Patent number: 11342364
    Abstract: A thin-film transistor substrate includes an insulating substrate, a first insulating layer, a first thin-film transistor including a first oxide semiconductor film, a second insulating layer located upper than the first insulating layer, and a second thin-film transistor including a second oxide semiconductor film different in composition from the first oxide semiconductor film. At least a part of the first oxide semiconductor film is provided above and in contact with the first insulating layer. The first insulating layer is the uppermost insulating layer among insulating layers located lower than and in contact with the first oxide semiconductor film. At least a part of the second oxide semiconductor film is provided above and in contact with the second insulating layer. The second insulating layer is the uppermost insulating layer among insulating layers located lower than and in contact with the second oxide semiconductor film.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 24, 2022
    Assignees: TIANMA JAPAN. LTD., Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Jun Tanaka, Kazushige Takechi
  • Patent number: 11342461
    Abstract: A TFT includes an oxide semiconductor layer including a conductive region electrically connected to a source electrode, a conductive region electrically connected to a drain electrode, a channel region being an oxide semiconductor region that overlaps a gate electrode, and at least one resistive region being an oxide semiconductor region provided between the channel region and a conductive region adjacent to the channel region.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: May 24, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takao Saitoh, Yohsuke Kanzaki, Seiji Kaneko, Masahiko Miwa, Masaki Yamanaka, Yi Sun
  • Patent number: 11335812
    Abstract: A novel semiconductor device is provided. A component extending in a first direction, and a first conductor and a second conductor extending in a second direction are provided. The component includes a third conductor, a first insulator, a first semiconductor, and a second insulator. In a first intersection portion of the component and the first conductor, the first insulator, the first semiconductor, the second insulator, a second semiconductor, and a third insulator are provided concentrically. In a second intersection portion of the component and the second conductor, the first insulator, the first semiconductor, the second insulator, a fourth conductor, and a fourth insulator are provided concentrically around the third conductor.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 17, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hajime Kimura, Hitoshi Kunitake
  • Patent number: 11335709
    Abstract: Array substrate, display panel, display device, and method for forming array substrate are provided. The array substrate includes a substrate and at least one first thin-film transistor on the substrate. the first thin-film transistor includes a first gate electrode; a first gate electrode insulating layer on a side of the first gate electrode facing away from the substrate; a first active layer on a side of the first gate electrode insulating layer facing away from the first gate electrode; a second gate electrode insulating layer on a side of the first active layer facing away from the first gate electrode insulating layer; a second gate electrode on a side of the second gate electrode insulating layer facing away from the first active layer; and a first source electrode and a first drain electrode on the first active layer facing away from the first gate electrode insulating layer.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 17, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Shui He, Shanshan Zheng, Yaqi Kuang
  • Patent number: 11335684
    Abstract: Some embodiments include apparatuses and methods using a substrate, a pillar having a length perpendicular to the substrate, a first conductive plate, a second conductive plate, a memory cell located between the first and second conductive plates and electrically separated from the first and second conductive plates, and a conductive connection. The first conductive plate is located in a first level of the apparatus and being separated from the pillar by a first dielectric located in the first level. The second conductive plate is located in a second level of the apparatus and being separated from the pillar by a second dielectric located in the second level. The memory cell includes a first semiconductor material located in a third level of the apparatus between the first and second levels and contacting the pillar and the conductive connection, and a second semiconductor material located in a fourth level of the apparatus between the first and second levels and contacting the pillar.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 17, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Kamal M. Karda, Karthik Sarpatwari, Haitao Liu, Durai Vishak Nirmal Ramaswamy
  • Patent number: 11335710
    Abstract: A thin film transistor, a display panel and a preparation method thereof and a display apparatus are provided. The thin film transistor includes: a substrate; a gate metal located on a side of the substrate; a gate insulating layer located on a side of the gate metal away from the substrate; an active layer located on a side of the gate insulating layer away from the substrate; a first metal oxide and a second metal oxide which are located on a side of the active layer away from the substrate and are arranged on a same layer; and a source metal and a drain metal which are located on sides of the first metal oxide and the second metal oxide away from the substrate and are arranged in a same layer.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 17, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qinghe Wang, Tongshang Su, Yongchao Huang, Yingbin Hu, Yang Zhang, Haitao Wang, Ning Liu, Guangyao Li, Zheng Wang, Yu Ji, Jinliang Hu, Wei Song, Jun Cheng, Liangchen Yan
  • Patent number: 11329074
    Abstract: An array substrate, a manufacturing method thereof, and a display panel. The array substrate includes a light-emitting area and a non-light-emitting area. The array substrate comprises: a substrate; a gate insulating layer comprising a first gate insulating layer and a second gate insulating layer disposed on the substrate in sequence; and a storage capacitor disposed in the light-emitting area and comprising a first transparent electrode and a second transparent electrode. Wherein the first transparent electrode is disposed between the first gate insulating layer and the second gate insulating layer, and the second transparent electrode is disposed on the second gate insulating layer.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: May 10, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Zhenguo Lin, Xingyu Zhou, Yuanjun Hsu
  • Patent number: 11322621
    Abstract: A thin film transistor includes a gate electrode, an active layer formed of oxide semiconductor material on a substrate, and a gate insulation layer therebetween. The active layer includes a channel region corresponding to the gate electrode, a source region at one side of the channel region, and a drain region at the other side of the channel region. The source region includes a first upper portion and the drain region includes a second upper portion that includes the oxide semiconductor material and Si.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: May 3, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Ju-Heyuck Baeck
  • Patent number: 11315963
    Abstract: The present disclosure provides a display substrate, a method for preparing the same, and a display device. The method for preparing the display substrate includes a step of preparing a pixel driving circuit on a substrate, the step specifically includes: preparing a first active layer of an oxide transistor on the substrate; preparing a barrier layer on a surface of the first active layer away from the substrate, an orthogonal projection of the barrier layer on the substrate covering an orthogonal projection of the first active layer on the substrate; preparing a low-temperature polysilicon transistor is on the substrate; and preparing a first gate insulating layer, a first gate electrode, a first input electrode, and a first output electrode of the oxide transistor on the substrate.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhen Song, Guoying Wang
  • Patent number: 11316051
    Abstract: A semiconductor device includes a transistor including, a first to fifth insulator, a first to third oxide, a first to third conductor. An opening reaching the second oxide is provided in the fourth insulator and the fifth insulator. The third oxide, the third insulator, and the third conductor are arranged sequentially from the inner wall side of the opening so as to fill the opening. In the channel length direction of the transistor, at least part of the fourth insulator in a region where the fourth insulator and the second oxide do not overlap with each other is in contact with the first insulator. In the channel width direction of the transistor, at least part of the third oxide in a region where the third oxide and the second oxide do not overlap with each other is in contact with the first insulator.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: April 26, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Katsuaki Tochibayashi, Ryota Hodo, Kentaro Sugaya, Naoto Yamade
  • Patent number: 11309336
    Abstract: The purpose of the present invention is to decrease the resistance of the drain and source in the TFT of the oxide semiconductor as well as to have stable Vd-Id characteristics of the TFT. The structure of the present invention is as follows: A display device having plural pixels including thin film transistors (TFT) having oxide semiconductor films comprising: a gate insulating film formed on the oxide semiconductor film, an aluminum oxide film formed on the gate insulating film, a gate electrode formed on the aluminum oxide film, a side spacer formed on both sides of the gate electrode, and an interlayer insulating film formed on the gate electrode, the side spacer, a drain and a source, wherein in a plan view, and in a direction from the drain to the source, a length of the gate electrode is shorter than a length of the aluminum oxide film.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 19, 2022
    Assignee: Japan Display Inc.
    Inventor: Isao Suzumura
  • Patent number: 11309258
    Abstract: A semiconductor structure includes a substrate, a MIM capacitor disposed over the substrate, a first insulating layer disposed over the MIM capacitor, an ONON stack disposed over the first insulating layer, a connecting via disposed in the first insulating layer, and a connecting pad disposed in the ONON stack and in contact with the connecting via. The ONON stack covers sidewalls of the connecting pad and a portion of a top surface of the connecting pad. The ONON stack includes a first silicon oxide layer, a first silicon nitride layer, a second silicon oxide layer and a second silicon nitride layer upwardly disposed over the first insulating layer. A thickness of the second silicon nitride layer is greater than a thickness of the second silicon oxide layer and greater than a thickness of the first silicon nitride layer.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: April 19, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Tung-Jiun Wu, Yinlung Lu, Mingni Chang, Ming-Yih Wang