Patents Assigned to Institute of Microelectronics
  • 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
  • Patent number: 10600696
    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: March 24, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Zhengyong Zhu
  • Patent number: 10573658
    Abstract: A method of manufacturing three-dimensional semiconductor device includes the steps of: forming a stack structure of a plurality of a first material layers and a second material layers on a substrate in the memory cell region; etching the stack structure to form a plurality of trenches; forming channel layers in the plurality of trenches; and reducing the surface roughness and the interface state by performing annealing treatment to at least one surface of the channel layers.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: February 25, 2020
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Zongliang Huo
  • Patent number: 10483279
    Abstract: A method of manufacturing a semiconductor device, comprising the steps of: forming a gate dielectric layer and a first amorphous channel layer on a substrate; thinning the first amorphous channel layer; etching the first amorphous channel layer and the gate dielectric layer until the substrate is exposed; forming a second amorphous channel layer on the first amorphous channel layer and the substrate; annealing such that the first amorphous channel layer and the second amorphous channel layer are converted into a polycrystalline channel layer; and thinning the polycrystalline channel layer. According to the method of manufacturing semiconductor device of the present invention, the grain size of the polycrystalline thin film is increased by depositing a thick amorphous film and then annealing and thinning it.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: November 19, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Tianchun Ye
  • Patent number: 10475807
    Abstract: A method for manufacturing three-dimensional memory, comprising the steps of: forming a stack structure composed of a plurality of first material layers and a plurality of second material layers on a substrate; etching the stack structure to expose the substrate, forming a plurality of first vertical openings; forming a filling layer in each of the first openings; etching the stack structure around each of the first openings to expose the substrate, forming a plurality of second vertical openings; forming a vertical channel layer and a drain in each of the second openings; removing the filling layer by selective etching, re-exposing the first openings; partially or completely removing the second material layers by lateral etching, leaving a plurality of recesses; forming a plurality of gate stack structure in the recesses; forming a plurality of common sources on and/or in the substrate at the bottom of each of the first openings.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 12, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Zongliang Huo, Ming Liu, Lei Jin
  • Patent number: 10475935
    Abstract: There are provided a nanometer semiconductor device with a high-quality epitaxial layer and a method of manufacturing the same. According to an embodiment, the semiconductor device may include: a substrate; at least one nanowire spaced apart from the substrate; at least one semiconductor layer, each formed around a periphery of respective one of the at least one nanowire to at least partially surround the corresponding nanowire, wherein the semiconductor layer(s) formed around the respective nanowire(s) are separated from each other; an isolation layer formed on the substrate, exposing the at least one semiconductor layer; and a gate stack formed on the isolation layer and intersecting the at least one semiconductor layer, wherein the gate stack includes a gate dielectric layer at least partially surrounding a periphery of respective one of the at least one semiconductor layer and a gate conductor layer.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 12, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Huilong Zhu
  • Patent number: 10468312
    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: November 5, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Zhengyong Zhu
  • Patent number: 10373968
    Abstract: A 3-D semiconductor device comprising a plurality of memory cells and a plurality of selection transistors, each of said plurality of memory cells comprises: a channel layer, distributed along a direction perpendicular to the substrate surface; a plurality of inter-layer insulating layers and a plurality of gate stack structures, alternately laminating along the sidewall of the channel layer; a plurality of floating gates, located between the plurality of inter-layer insulating layers and the sidewall of the channel layer; a plurality of drains, located at the top of the channel layer; and a plurality of sources, located in the said substrate between two adjacent memory cells of the said plurality of memory cells.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: August 6, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Zongliang Huo
  • Publication number: 20190229182
    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: Application
    Filed: December 28, 2016
    Publication date: July 25, 2019
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Shengkai Wang, Honggang Liu, Bing Sun, Hudong Chang
  • Patent number: 10276366
    Abstract: A method for manufacturing a low interface state device includes performing a remote plasma surface process on a III-Nitride layer on a substrate; transferring the processed substrate to a deposition cavity via an oxygen-free transferring system; and depositing on the processed substrate in the deposition cavity. The deposition may be low pressure chemical vapor deposition (LPCVD). The interface state between a surface dielectric and III-Nitride material may be significantly decreased by integrating a low impairment remote plasma surface process and LPCVD.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 30, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Xinyu Liu, Sen Huang, Xinhua Wang, Ke Wei, Wenwu Wang, Junfeng Li, Chao Zhao
  • Patent number: 10269919
    Abstract: A semiconductor device structure is provided. The semiconductor device includes a semiconductor substrate, a first device, and a second device. Each of the first and second devices includes a gate extending in a first direction, source/drain regions respectively formed on opposite first and second sides of the gate, dielectric spacers formed respectively on outer sidewalls of the gate on the first side and the second side, and conductive spacers serving contacts to the source/drain regions and formed respectively on outer sidewalls of the respective gate spacers. A second direction from the source/drain region on the first side to the source/drain region on the second side crosses the first direction.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: April 23, 2019
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Qingqing Liang, Haizhou Yin
  • Patent number: 10176287
    Abstract: The invention discloses an STI stress effect modeling method and device of an MOS device, and belongs to the technical field of parameter extraction modeling of devices. The method comprises the following steps: introducing the influence of temperature parameters on the STI stress effect of the MOS device, so as to form a function showing that the STI stress effect of the MOS device changes along with the temperature parameters; extracting the model parameter Model1 of the MOS device at normal temperature; on the basis of the Model1, extracting the parameter Model2 that the STI stress affects the properties of the MOS device at normal temperature; and on the basis of the Model2, extracting fitting parameters of the MOS device in the function so as to acquire final model parameters. The device comprises a first module, a second module, a third module and a fourth module.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 8, 2019
    Assignee: The Institute of Microelectronics of Chinese Academy of Science
    Inventors: Jianhui Bu, Shuzhen Li, Jiajun Luo, Zhengsheng Han
  • Publication number: 20190006584
    Abstract: A method for improving endurance of 3D integrated resistive switching memory, comprising: Step 1: Calculating the temperature distribution in the integrated array by the 3D Fourier heat conduction equation; Step 2, selecting heat transfer mode; Step 3: selecting an appropriate array structure; Step 4: analyzing the influence of integration degree on temperature in the array; Step 5: evaluating the endurance performance in the array; and Step 6: changing the array parameters according to the evaluation result to improve the endurance performance. According to the method of the present invention, based on the thermal transmission mode in the 3D integrated resistive switching device, a suitable 3D integrated array is selected to analyze the influence of the integration degree on the device temperature so as to evaluate and improve the endurance of the 3D integrated resistive switching device.
    Type: Application
    Filed: August 12, 2016
    Publication date: January 3, 2019
    Applicant: Institute of Microelectronics, Chinese Academy of Science
    Inventors: Nianduan LU, Pengxiao SUN, Ling LI, Ming IIU, Qi LIU, Hangbing LV, Shibing LONG
  • Publication number: 20180366643
    Abstract: A method for evaluating the thermal effects of 3D RRAM arrays and reducing thermal crosstalk, including the following steps: Step 1: calculating the temperature distribution in the array through 3D Fourier heat conduction equation; Step 2, selecting a heat transfer mode; Step 3, selecting an appropriate array structure; Step 4, analyzing the effect of position of programming device in the array on the temperature; Step 5, analyzing the thermal crosstalk effect in the array; Step 6, evaluating thermal effects and thermal crosstalk; Step 7, changing the array structure or modify operating parameters based on the evaluation results to reduce the thermal crosstalk.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 20, 2018
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Nianduan Lu, Pengxiao Sun, Ling Li, Ming Iiu, Qi Liu, Hangbing Lv, Shibing Long
  • Patent number: 10128375
    Abstract: An FinFET and a method for manufacturing the same are disclosed. The FinFET comprises: a semiconductor substrate; a stress layer on the semiconductor substrate; a semiconductor fin on the stress layer, the semiconductor fin having two sidewalls extending in its length direction; a gate dielectric on the sidewalls of the semiconductor fin; a gate conductor on the gate dielectric; and a source region and a drain region at two ends of the semiconductor fin, wherein the stress layer extends below and in parallel with the semiconductor fin, and applies stress to the semiconductor fin in the length direction of the semiconductor fin.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: November 13, 2018
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Miao Xu
  • Patent number: 10128244
    Abstract: Provided are a CMOS device having a charged punch-through stopper (PTS) layer to reduce punch-through and a method of manufacturing the same. In an embodiment, the CMOS semiconductor device includes an n-type device and a p-type device. The n-type device and the p-type device each 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 n-type device or the p-type 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. For the n-type device, the PTS layer has net negative charges, and for the p-type device, the PTS layer has net positive charges.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 13, 2018
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Xing Wei
  • Patent number: 10115641
    Abstract: There are provided a semiconductor arrangement, a method of manufacturing the same, and an electronic device including the semiconductor arrangement. According to an embodiment, the semiconductor arrangement may include a first semiconductor device and a second semiconductor device stacked in sequence on a substrate. Each of the first semiconductor device and the second semiconductor device may include a first source/drain layer, a channel layer and a second source/drain layer stacked in sequence, and a gate stack surrounding a periphery of the channel layer. The channel layer may comprise a semiconductor material different from that of the first source/drain layer and from that of the second source/drain layer.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 30, 2018
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventor: Huilong Zhu
  • Patent number: 10068803
    Abstract: A planarization process is disclosed. The method includes forming a trench in an area of a material layer which has a relatively high loading condition for sputtering. The method further includes sputtering the material layer to make the material layer flat.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: September 4, 2018
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Jun Luo, Chunlong Li, Jian Deng, Chao Zhao
  • Patent number: 10056261
    Abstract: Provided are P type MOSFETs and methods for manufacturing the same. The method may include forming source/drain regions in a semiconductor substrate; forming an interfacial oxide layer on the semiconductor substrate; forming a high K gate dielectric layer on the interfacial oxide layer; forming a first metal gate layer on the high K gate dielectric layer; implanting dopants into the first metal gate layer through conformal doping; and performing annealing to change an effective work function of a gate stack including the first metal gate layer, the high K gate dielectric, and the interfacial oxide layer.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 21, 2018
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Qiuxia Xu, Yanbo Zhang, Hong Yang