Patents Assigned to Institute of Microelectronics Chinese Academy of Science
  • Patent number: 10797178
    Abstract: There are provided a multi-gate FinFET including a negative capacitor connected to one of its gates, a method of manufacturing the same, and an electronic device comprising the same. The FinFET may include a fin extending in a first direction on a substrate, a first gate extending in a second direction crossing the first direction on the substrate on a first side of the fin to intersect the fin, a second gate opposite to the first gate and extending in the second direction on the substrate on a second side of the fin opposite to the first side to intersect the fin, a metallization stack provided on the substrate and above the fin and the first and second gates, and a negative capacitor formed in the metallization stack and connected to the second gate.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 6, 2020
    Assignee: Institute of Microelectronics Chinese Academy of Sciences
    Inventors: Huilong Zhu, Zhengyong Zhu
  • Patent number: 10763105
    Abstract: A method of manufacturing a grooved-gate MOSFET device based on a two-step microwave plasma oxidation, including: etching a grooved gate, and oxidizing silicon carbide on a surface of the grooved gate to silicon dioxide by microwave plasma to form a grooved-gate oxide layer, the step of forming the grooved-gate oxide layer including: placing a silicon carbide substrate subjected to the grooved gate etching in a microwave plasma generating device; introducing a first oxygen-containing gas, heating generated oxygen plasma to a first temperature at a first heating rate, and performing low-temperature plasma oxidation at the first temperature and a first pressure; heating the oxygen plasma to a second temperature at a second heating rate, introducing a second oxygen-containing gas, and performing high-temperature plasma oxidation at the second temperature and a second pressure until a predetermined thickness of silicon dioxide is formed; stopping introduction of the oxygen-containing gas, and completing the react
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 1, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xinyu Liu, Yidan Tang, Shengkai Wang, Yun Bai, Chengyue Yang
  • Patent number: 10756256
    Abstract: A magnetoresistive random access memory and a method for manufacturing the same are provided, with which a stress layer covers a part of the protective layer along a direction of a current in the spin-orbit coupling layer, so that a stress is generated on the part of the magnetic layer locally due to the stress layer, thus a lateral asymmetric structure is formed in a direction perpendicular to the current source. In a case that a current is supplied to the spin-orbit coupling layer, the spin-orbit coupling effect in the magnetic layer is asymmetric due to the stress on the part of the magnetic layer, thereby realizing a deterministic switching of the magnetic moment under the function of the stress.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 25, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Meiyin Yang, Jun Luo, Tengzhi Yang, Jing Xu
  • Patent number: 10750606
    Abstract: A microwave plasma equipment and a method of exciting plasma are disclosed. The microwave plasma equipment includes: a plasma reaction device having a cavity in which a base support and a plasma-forming area is provided; a conversion device having gradient electrodes, the gradient electrodes being disposed inside the cavity and configured to generate a gradient electric field in the plasma-forming area; a gas supply device configured to introduce gas into the cavity of the plasma reaction device; and a microwave generating device configured to generate and transmit microwave into the cavity of the plasma reaction device.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 18, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xinyu Liu, Shengkai Wang, Yidan Tang, Yun Bai
  • Patent number: 10749021
    Abstract: A GaN-based enhancement-mode power electronic device and a method for manufacturing the same. The GaN-based enhancement-mode power electronic device comprises: a substrate; a thin barrier Al(In,Ga)N/GaN heterostructure formed on the substrate; a gate, a source, and a drain formed on the thin barrier Al(In,Ga)N/GaN heterostructure. An AlN or SiNx passivation layer is formed on access regions between the gate and the source and between the gate and the drain, respectively, such that two dimensional electron gas is recovered in channels of the thin barrier Al(In,Ga)N/GaN heterostructure below the MN passivation layer by utilizing the MN passivation layer having polarization characteristics, or by using the SiNx passivation layer with positive fixed bulk/interface charges, so as to reduce on-resistance of the device and inhibit high-voltage current collapse in the device.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: August 18, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Sen Huang, Xinyu Liu, Xinhua Wang, Ke Wei
  • Patent number: 10734199
    Abstract: A microwave plasma generating device for plasma oxidation of SiC, comprising an outer cavity and a plurality of micro-hole/micro-nano-structured double-coupling resonant cavities disposed in the outer cavity. Each resonant cavity includes a cylindrical cavity. A micro-hole array formed by a plurality of micro-holes is uniformly distributed on a peripheral wall of the cylindrical cavity, a diameter of each of the micro-holes is an odd multiple of wavelength, and an inner wall of the cylindrical cavity has a metal micro-nano structure, the metal micro-nano structure has a periodic dimension of ?/n, where ? is wavelength of an incident wave, and n is refractive index of material of the resonant cavity. The outer cavity is provided with an gas inlet for conveying an oxygen-containing gas into the outer cavity, and the oxygen-containing gas forms an oxygen plasma around the resonant cavities for oxidizing SiC; a stage is disposed under the resonant cavities.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: August 4, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xinyu Liu, Yidan Tang, Shengkai Wang, Yun Bai, Chengyue Yang
  • Patent number: 10720578
    Abstract: Provided are a self-gating resistive storage device and a method for fabrication thereof; said self-gating resistive storage device comprises: lower electrodes; insulating dielectric layers arranged perpendicular to, and intersecting with, the lower electrodes to form a stacked structure, said stacked structure being provided with a vertical trench; a gating layer grown on the lower electrodes by means of self-alignment technique, the interlayer leakage channel running through the gating layer being isolated via the insulating dielectric layers; a resistance transition layer arranged in the vertical trench and connected to the insulating dielectric layers and the gating layer; and an upper electrode arranged in the resistance transition layer.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 21, 2020
    Assignee: THE INSTITUTE OF MICROELECTRONICS OF CHINESE ACADEMY OF SCIENCES
    Inventors: Hangbing LV, Ming Liu, Xiaoxin Xu, Qing Luo, Qi Liu, Shibing Long
  • Patent number: 10714398
    Abstract: There are provided a semiconductor device, a method of manufacturing the same, and an electronic device including the device. According to an embodiment, the semiconductor device may include a substrate; a first source/drain layer, a channel layer and a second source/drain layer stacked on the substrate in sequence, wherein the second source/drain layer comprises a first semiconductor material which is stressed; and a gate stack surrounding a periphery of the channel layer.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 14, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Huilong Zhu
  • Patent number: 10700124
    Abstract: A spin-orbit torque magnetoresistive random access memory, and a method for manufacturing a spin-orbit torque magnetoresistive random access memory are provided. The spin-orbit torque magnetoresistive random access memory includes a spin-orbit coupling layer and a magnetoresistive tunnel junction located on the spin-orbit coupling layer. The magnetoresistive tunnel junction includes a first magnetic layer, a tunneling layer, and a second magnetic layer that are sequentially stacked from bottom to top, and each of the first magnetic layer and the second magnetic layer has perpendicular anisotropy. In a direction of a current in the spin-orbit coupling layer, defects are generated in a part of the magnetoresistive tunnel junction by an ion implantation process.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: June 30, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Meiyin Yang, Jun Luo, Tengzhi Yang, Jing Xu
  • Patent number: 10700276
    Abstract: The present invention discloses a preparation method of a Cu-based resistive random access memory, and a memory. The preparation method includes: performing composition and a chemical combination treatment on a lower copper electrode (10) to generate a compound buffer layer (40), wherein the compound buffer layer (40) is capable of preventing the oxidation of the lower copper electrode (10); depositing a solid electrolyte material (50) on the compound buffer layer (40); and depositing an upper electrode (60) on the solid electrolyte material (50) to form the memory.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: June 30, 2020
    Assignee: THE INSTITUTE OF MICROELECTRONICS OF CHINESE ACADEMY OF SCIENCES
    Inventors: Hangbing Lv, Ming Liu, Qi Liu, Shibing Long
  • Patent number: 10680067
    Abstract: The present disclosure discloses a self-aligned silicon carbide MOSFET device with an optimized P+ region and a manufacturing method thereof. The self-aligned silicon carbide MOSFET device is formed by a plurality of silicon carbide MOSFET device cells connected in parallel, and these silicon carbide MOSFET device cells are arranged evenly. The silicon carbide MOSFET device cell comprises two source electrodes, one gate electrode, one gate oxide layer, two N+ source regions, two P+ contact regions, two P wells, one N? drift layer, one buffer layer, one N+ substrate, one drain electrode and one isolation dielectric layer.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 9, 2020
    Assignees: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES, ZHUZHOU CRRC TIMES ELECTRIC CO., LTD.
    Inventors: Yidan Tang, Huajun Shen, Yun Bai, Jingtao Zhou, Chengyue Yang, Xinyu Liu, Chengzhan Li, Guoyou Liu
  • Patent number: 10665780
    Abstract: A selector for a bipolar resistive random access memory and a method for fabricating the selector are provided. The method includes: providing a substrate; forming a lower electrode on the substrate, where the lower electrode is made of a metal, and the metal is made up of metal atoms which diffuse under an annealing condition of below 400° C.; forming a first metal oxide layer on the lower electrode; performing an annealing process on the first metal oxide layer to make the metal atoms in the lower electrode diffuse into the first metal oxide layer to form a first metal oxide layer doped with metal atoms; forming a second metal oxide layer on the first metal oxide layer doped with metal atoms; forming an upper electrode layer on the second metal oxide layer; and patterning the upper electrode layer to form an upper electrode.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 26, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Ming Liu, Qing Luo, Xiaoxin Xu, Hangbing Lv, Shibing Long, Qi Liu
  • Patent number: 10644100
    Abstract: The present disclosure relates to the field of semiconductor Integrated Circuit (IC) manufacture, and provides an InGaAs-based double-gate PMOS Field Effect Transistor (FET). The FET includes a bottom gate electrode, a bottom gate dielectric layer, a bottom gate interface control layer, an InGaAs channel layer, an upper interface control layer, a highly doped P-type GaAs layer, an ohmic contact layer, source/drain metal electrodes, a top gate dielectric layer and a top gate electrode. The source/drain metal electrodes are located on opposite sides of the ohmic contact layer. A gate trench structure is etched to an upper surface of the interface control layer between the source and drain metal electrodes. The top gate dielectric layer uniformly covers an inner surface of the gate trench structure, and the top gate electrode is provided on the top gate dielectric layer.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 5, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Shengkai Wang, Honggang Liu, Bing Sun, Hudong Chang
  • Patent number: 10644103
    Abstract: Provided are a semiconductor device having a charged punch-through stopper (PTS) layer to reduce punch-through and a method of manufacturing the same. In an embodiment, the semiconductor device may include a fin structure formed on a substrate; an isolation layer formed on the substrate, wherein a portion of the fin structure above the isolation layer acts as a fin of the semiconductor device; a charged PTS layer formed on side walls of a portion of the fin structure beneath the fin; and a gate stack formed on the isolation layer and intersecting the fin. The semiconductor device may be an n-type device or a p-type device. For the n-type device, the PTS layer may have net negative charges, and for the p-type device, the PTS layer may have net positive charges.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 5, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Xing Wei
  • Patent number: 10643905
    Abstract: There are provided an Integrated Circuit (IC) unit, a method of manufacturing the same, and an electronic device including the IC unit. According to an embodiment, the IC unit includes a first source/drain layer, a channel layer and a second source/drain layer for a first device and a first source/drain layer, a channel layer and a second source/drain layer for a second device stacked in sequence on a substrate. In the first device, the channel layer includes a first portion and a second portion separated from each other. The first source/rain layer and the second source/drain layer each extend integrally to overlap both the first portion and the second portion of the channel layer. The IC unit further includes a first gate stack surrounding a periphery of the first portion and also a periphery of the second portion of the channel layer of the first device, and a second gate stack surrounding a periphery of the channel layer of the second device.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: May 5, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Zhengyong Zhu
  • Patent number: 10644020
    Abstract: A three-dimensional semiconductor device includes: A peripheral circuit, distributed on a substrate; a plurality of memory cells above the peripheral circuit, each of which includes: a common source region, between the memory cell and the peripheral circuit; a channel layer, distributed in a direction perpendicular to the surface of the substrate; at least one substrate contact layer, extending horizontally from the central portion of the channel layer parallel to the surface of the substrate, each comprising at least one substrate contact region; a plurality of insulating layers, located on sidewalls of the channel layer; a plurality of control gates, sandwiched between adjacent insulating layers; a gate dielectric layer, located between the channel layer and the control gates; a drain region, located at top of the channel layer; a substrate contact lead-out line, electrically connected to the substrate contact regions; and a bit line wiring, electrically connected to the drain region of each memory cell and
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 5, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Zongliang Huo, Tianchun Ye
  • Patent number: 10636699
    Abstract: A method of manufacturing three-dimensional semiconductor device, comprising the steps of: a) forming a device unit on a substrate, the said device includes a plurality of stack structures composed of the first material layer and the second material layer stacked along a direction perpendicular to the substrate surface; b) forming a contact lead-out region around the said device unit, the contact lead-out region comprises a plurality of sub-partitions, each of the sub-partitions respectively exposes a different second material layer; c) forming a photoresist on said substrate, covering said plurality of sub-partitions, exposing a portion of said second material layer; d) using the photoresist as a mask, simultaneously etching the portion of the second material layer exposed by said plurality of sub-partitions, until another second material layer beneath said second material layer is exposed; e) slimming the size of the photoresist to expose a portion of said another second material layer; f) repeating said st
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: April 28, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Zongliang Huo
  • Patent number: 10629498
    Abstract: There are provided an Integrated Circuit (IC) unit, a method of manufacturing the same, and an electronic device including the IC unit. According to an embodiment, the IC unit includes a first source/drain layer, a channel layer and a second source/drain layer for a first device and a first source/drain layer, a channel layer and a second source/drain layer for a second device stacked in sequence on a substrate. In the first device, the channel layer includes a first portion and a second portion separated from each other. The first source/rain layer and the second source/drain layer each extend integrally to overlap both the first portion and the second portion of the channel layer. The IC unit further includes a first gate stack surrounding a periphery of the first portion and also a periphery of the second portion of the channel layer of the first device, and a second gate stack surrounding a periphery of the channel layer of the second device.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 21, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Zhengyong Zhu
  • Patent number: 10608177
    Abstract: The present disclosure discloses a self-gated RRAM cell and a manufacturing method thereof; which belong to the field of microelectronic technology. The self-gated RRAM cell comprises: a stacked structure containing multiple layers of conductive lower electrodes; a vertical trench formed by etching the stacked structure; a M8XY6 gated layer formed on an inner wall and a bottom of the vertical trench; a resistance transition layer formed on a surface of the M8XY6, gated layer; and a conductive upper electrode formed on a surface of the resistance transition layer, the vertical trench being filled with the conductive upper electrode. The present disclosure is implemented on a basis of using the self-gated RRAM as a memory cell.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: March 31, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Hangbing Lv, Ming Liu, Qi Liu, Shibing Long
  • Publication number: 20200099373
    Abstract: The present disclosure provides a serial PWM signal decoding circuit based on a capacitor charge-discharge structure, comprising: a timing logic generation circuit configured to receive, at an input end of the timing logic generation circuit, a PWM differential signal, and generate a timing logic signal; and at least two capacitor charge-discharge decoding modules, each of the at least two capacitor charge-discharge decoding modules has an input end connected to an output end of the timing logic generation circuit, and is configured to perform charging and discharging based on the timing logic signal.
    Type: Application
    Filed: March 20, 2017
    Publication date: March 26, 2020
    Applicant: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Zhi LI, Jianzhong ZHAO, Yumei ZHOU, Weihua XIN