Patents Examined by Raj R Gupta
  • Patent number: 11855202
    Abstract: A MOS transistor includes a substrate, a first region, a second region, a source region, a drain region, an active gate stack, and a dummy gate stack. The substrate has a first conductivity. The first region having the first conductivity is formed in the substrate. The second region having a second conductivity is formed in the substrate and is adjacent to the first region. The source region with the second conductivity is formed in the first region. The drain region with the second conductivity is formed in the second region. The active gate stack is disposed on the first region. The dummy gate stack is disposed on the second region, and the dummy gate stack is electrically coupled to a variable voltage.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Ching Wu, Po-Jen Wang
  • Patent number: 11843037
    Abstract: Provided are a semiconductor device and a method of manufacturing the semiconductor device. The semiconductor device includes a substrate, a channel layer at least one of on or in the substrate, an insulation layer on the substrate, a ferroelectric layer on the insulation layer, a fixed charge layer on an interface between the insulation layer and the ferroelectric layer, the fixed charge layer including charges of a first polarity, and a gate on the ferroelectric layer.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: December 12, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dukhyun Choe, Jinseong Heo, Yunseong Lee, Sanghyun Jo
  • Patent number: 11829062
    Abstract: In a method of manufacturing a reflective mask, a photo resist layer is formed over a mask blank. The mask blank includes a substrate, a reflective multilayer on the substrate, a capping layer on the reflective multilayer, an absorber layer on the capping layer and a hard mask layer, and the absorber layer is made of Cr, CrO or CrON. The photo resist layer is patterned, the hard mask layer is patterned by using the patterned photo resist layer, the absorber layer is patterned by using the patterned hard mask layer, and an additional element is introduced into the patterned absorber layer to form a converted absorber layer.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: November 28, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Pei-Cheng Hsu, Ta-Cheng Lien, Hsin-Chang Lee
  • Patent number: 11824058
    Abstract: Aspects of the disclosure provide a semiconductor device and a method for forming the semiconductor device. The method for forming a semiconductor device includes forming a first stack of channel structures that extends between a source terminal and a drain terminal of a first transistor in a first region of the semiconductor device. The first stack of channel structures includes a first channel structure and a second channel structure. The method further includes forming a first gate structure that wraps around the first stack of channel structures with a first metal cap between the first channel structure and the second channel structure. The first metal cap has a different work function from another portion of the first gate structure.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: November 21, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Shi Ning Ju, Ching-Wei Tsai, Kuan-Lun Cheng, Chih-Hao Wang
  • Patent number: 11817470
    Abstract: The present disclosure, in some embodiments, relates to an integrated chip structure. The integrated chip structure includes a first plurality of interconnects within a first dielectric structure on a first substrate, and a second plurality of interconnects within a second dielectric structure on a second substrate. A bonding structure is arranged between the first dielectric structure and the second substrate. An inter-tier interconnect structure extends between the first plurality of interconnects and the second plurality of interconnects and through the second substrate. The inter-tier interconnect structure includes a first region having substantially vertical sidewalls extending through the second substrate and a second region surrounded by the bonding structure. The second region contacts a bottom of the first region and has tapered sidewalls.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: November 14, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jeng-Shyan Lin, Dun-Nian Yaung, Jen-Cheng Liu, Hsun-Ying Huang, Wei-Chih Weng, Yu-Yang Shen
  • Patent number: 11810899
    Abstract: A method includes forming a dielectric layer over a carrier, forming a plurality of bond pads in the dielectric layer, and performing a planarization to level top surfaces of the dielectric layer and the plurality of bond pads with each other. A device die is bonded to the dielectric layer and portions of the plurality of bond pads through hybrid bonding. The device die is encapsulated in an encapsulating material. The carrier is then demounted from the device die and the dielectric layer.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: November 7, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chen-Hua Yu, Sung-Feng Yeh, Ming-Fa Chen
  • Patent number: 11799006
    Abstract: A semiconductor device may include a first device on a first portion of a substrate, a second device on a second portion of the substrate, and a third device on a third portion of the substrate. The third device may include an oxide layer that is formed from an oxide layer that is a sacrificial oxide layer for the first device and the second device. The third device may include a gate provided on the oxide layer, a set of spacers provided on opposite sides of the gate, and a source region provided in the third portion of the substrate on one side of the gate. The third device may include a drain region provided in the third portion of the substrate on another side of the gate, and a protective oxide layer provided on a portion of the gate and a portion of the drain region.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: October 24, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Han Lin, Te-An Chen
  • Patent number: 11782346
    Abstract: A method for patterning a substrate in which a patterned photoresist structure can be formed on the substrate, the patterned photoresist structure having a sidewall. A conformal layer of spacer material can be deposited on the sidewall. The patterned photoresist structure can then be removed from the substrate, leaving behind the spacer material. Then, the substrate can be directionally etched using the sidewall spacer as an etch mask to form the substrate having a target critical dimension.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: October 10, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Jodi Grzeskowiak, Anthony Schepis, Anton Devilliers
  • Patent number: 11765982
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a first inter-metal dielectric (IMD) layer on a substrate; forming a metal interconnection in the first IMD layer; forming a bottom electrode layer and a pinned layer on the first IMD layer; forming a sacrificial layer on the pinned layer; patterning the sacrificial layer, the pinned layer, and the bottom electrode layer to form a first magnetic tunneling junction (MTJ); forming a second IMD layer around the first MTJ; and removing the sacrificial layer.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: September 19, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Ching-Wen Hung, Ya-Sheng Feng
  • Patent number: 11756955
    Abstract: A method of making a semiconductor device, includes: providing a first dielectric layer; sequentially forming a first metal layer, a dummy capacitor dielectric layer, and a second metal layer over the first dielectric layer; and using a single mask layer with two patterns to simultaneously recess two portions of the second metal layer so as to define a metal thin film of a resistor and a top metal plate of a capacitor.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: September 12, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chen-Hsiang Hung, Li-Hsin Chu, Chia-Ping Lai, Chung-Chuan Tseng
  • Patent number: 11749720
    Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a fin active region formed on a semiconductor substrate and spanning between a first sidewall of a first shallow trench isolation (STI) feature and a second sidewall of a second STI feature; an anti-punch through (APT) feature of a first type conductivity; and a channel material layer of the first type conductivity, disposed on the APT feature and having a second doping concentration less than the first doping concentration. The APT feature is formed on the fin active region, spans between the first sidewall and the second sidewall, and has a first doping concentration.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: September 5, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Yi Peng, Ling-Yen Yeh, Chi-Wen Liu, Chih-Sheng Chang, Yee-Chia Yeo
  • Patent number: 11742431
    Abstract: A semiconductor device with favorable reliability is provided. The semiconductor device includes a first insulator; a second insulator positioned over the first insulator; an oxide positioned over the second insulator; a first conductor and a second conductor positioned apart from each other over the oxide; a third insulator positioned over the oxide, the first conductor, and the second conductor; a third conductor positioned over the third insulator and at least partly overlapping with a region between the first conductor and the second conductor; a fourth insulator positioned to cover the oxide, the first conductor, the second conductor, the third insulator, and the third conductor; a fifth insulator positioned over the fourth insulator; and a sixth insulator positioned over the fifth insulator.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: August 29, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshinobu Asami, Takahisa Ishiyama, Motomu Kurata, Ryo Tokumaru, Noritaka Ishihara, Yusuke Nonaka
  • Patent number: 11730069
    Abstract: The present disclosure includes memory cell structures and method of forming the same. One such method includes forming a memory cell includes forming, in a first direction, a select device stack including a select device formed between a first electrode and a second electrode; forming, in a second direction, a plurality of sacrificial material lines over the select device stack to form a via; forming a programmable material stack within the via; and removing the plurality of sacrificial material lines and etching through a portion of the select device stack to isolate the select device.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: August 15, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Scott E. Sills, D. V. Nirmal Ramaswamy
  • Patent number: 11723264
    Abstract: A light-emitting element which includes a plurality of light-emitting layers between a pair of electrodes and has low driving voltage and high emission efficiency is provided. A light-emitting element including first to third light-emitting layers between a cathode and an anode is provided. The first light-emitting layer includes a first phosphorescent material and a first electron-transport material; the second light-emitting layer includes a second phosphorescent material and a second electron-transport material; the third light-emitting layer includes a fluorescent material and a third electron-transport material; the first to third light-emitting elements are provided in contact with an electron-transport layer positioned on a cathode side; and a triplet excitation energy level of a material included in the electron-transport layer is lower than triplet excitation energy levels of the first electron-transport material and the second electron-transport material.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: August 8, 2023
    Inventors: Tsunenori Suzuki, Naoaki Hashimoto, Eriko Saijo, Satoshi Seo
  • Patent number: 11721586
    Abstract: Speed of plasma etching is regulated in regions prone to over-etching by providing an etch resistant structure, such as a metal saw bow, in the region. By adjusting dimensions, such as the length and width of the saw bow legs and an area defined by the saw bow legs, as well as a shape of the etch region through techniques such as chamfering, plasma etch speed in the region can be controlled with an intent to match the speed of etching in non-over-etched regions.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 8, 2023
    Assignee: NXP B.V.
    Inventors: Antonius Hendrikus Jozef Kamphuis, Ernst Eiper, Johannes Cobussen, Chantal Dijkstra
  • Patent number: 11721763
    Abstract: A method comprises forming a source/drain region on a substrate; forming a dielectric layer over the source/drain region; forming a contact hole in the dielectric layer; forming a contact hole liner in the contact hole; removing a first portion of the contact hole liner to expose a sidewall of the contact hole; etching the exposed sidewall of the contact hole to laterally expand the contact hole; and forming a contact plug in the laterally expanded contact hole.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: August 8, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wen-Che Tsai, Min-Yann Hsieh, Hua-Feng Chen, Kuo-Hua Pan
  • Patent number: 11710805
    Abstract: A method of forming a light emitting device includes forming a semiconductor light emitting diode, forming a metal layer stack including a first metal layer and a second metal layer on the light emitting diode, and oxidizing the metal layer stack to form transparent conductive layer including at least one conductive metal oxide.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: July 25, 2023
    Assignee: NANOSYS, INC.
    Inventors: Fariba Danesh, Tsun Lau, Richard P. Schneider, Jr., Michael Jansen, Max Batres
  • Patent number: 11682705
    Abstract: A thin film transistor including a gate electrode, a semiconductor layer, and source and drain electrodes contacting the semiconductor layer. The source and drain electrodes include a metal oxide having a crystal size in a c-axis direction Lc(002) that ranges from 67 ? or more to 144 ? or less.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan Woo Yang, Hyune Ok Shin, Chang Oh Jeong, Su Kyoung Yang, Dong Min Lee
  • Patent number: 11682726
    Abstract: A high voltage semiconductor device includes a semiconductor substrate, an isolation structure, a gate oxide layer, and a gate structure. The semiconductor substrate includes a channel region, and at least a part of the isolation structure is disposed in the semiconductor substrate and surrounds the channel region. The gate oxide layer is disposed on the semiconductor substrate, and the gate oxide layer includes a first portion and a second portion. The second portion is disposed at two opposite sides of the first portion in a horizontal direction, and a thickness of the first portion is greater than a thickness of the second portion. The gate structure is disposed on the gate oxide layer and the isolation structure.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: June 20, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Tsung-Yu Yang, Shin-Hung Li, Nien-Chung Li, Chang-Po Hsiung
  • Patent number: 11678549
    Abstract: An OLED display device includes a substrate, a first protection layer substrate, conductive lines extending substantially in a first direction, a second protection layer, a first electrode overlapping at least a part of the conductive lines, a pixel defining layer including an opening exposing at least a part of the first electrode, an organic light emission layer, and a second electrode. The opening is divided into a first polygon and a second polygon with respect to an imaginary straight line that passes through the opening at a maximum length in the first direction. A planar area of the first polygon is different from a planar area of the second polygon.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangmin Hong, Heeseong Jeong