Patents by Inventor Huicai Zhong

Huicai Zhong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11251183
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 15, 2022
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huilong Zhu, Yanbo Zhang, Huicai Zhong
  • Patent number: 11251184
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 15, 2022
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huilong Zhu, Yanbo Zhang, Huicai Zhong
  • Publication number: 20210020639
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 21, 2021
    Inventors: Huilong ZHU, Yanbo ZHANG, Huicai ZHONG
  • Publication number: 20210020640
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 21, 2021
    Inventors: Huilong ZHU, Yanbo ZHANG, Huicai ZHONG
  • Patent number: 10832972
    Abstract: A semiconductor arrangement includes: a substrate; a plurality of fins formed on the substrate and extending in a first direction; a plurality of gate stacks formed on the substrate and extending in a second direction crossing the first direction and dummy gates composed of dielectric and extending in the second direction, wherein each of the gate stacks intersects at least one of the fins; and spacers formed on sidewalls of the gate stacks and sidewalls of the dummy gates, wherein spacers of at least a first one and a second one among the gate stacks and the dummy gates which are aligned in the second direction extend integrally, and at least some of the fins have ends abutting the dummy gates and substantially aligned with inner walls of corresponding ones of the spacers.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 10, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huilong Zhu, Huicai Zhong, Yanbo Zhang
  • Patent number: 10833086
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 10, 2020
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huilong Zhu, Yanbo Zhang, Huicai Zhong
  • Publication number: 20190304976
    Abstract: A semiconductor arrangement includes: a substrate; fins formed on the substrate and extending in a first direction; gate stacks formed on the substrate and each extending in a second direction crossing the first direction to intersect at least one of the fins, and dummy gates composed of a dielectric and extending in the second direction; spacers formed on sidewalls of the gate stacks and the dummy gates; and dielectric disposed between first and second ones of the gate stacks in the second direction to electrically isolate the first and second gate stacks. The dielectric is disposed in a space surrounded by respective spacers of the first and second gate stacks which extend integrally. At least a portion of an interval between the first and second gate stacks in the second direction is less than a line interval achievable by lithography in a process of manufacturing the semiconductor arrangement.
    Type: Application
    Filed: December 21, 2016
    Publication date: October 3, 2019
    Inventors: Huilong ZHU, Yanbo ZHANG, Huicai ZHONG
  • Publication number: 20190189523
    Abstract: A semiconductor arrangement includes: a substrate; a plurality of fins formed on the substrate and extending in a first direction; a plurality of gate stacks formed on the substrate and extending in a second direction crossing the first direction and dummy gates composed of dielectric and extending in the second direction, wherein each of the gate stacks intersects at least one of the fins; and spacers formed on sidewalls of the gate stacks and sidewalls of the dummy gates, wherein spacers of at least a first one and a second one among the gate stacks and the dummy gates which are aligned in the second direction extend integrally, and at least some of the fins have ends abutting the dummy gates and substantially aligned with inner walls of corresponding ones of the spacers.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 20, 2019
    Inventors: Huilong ZHU, Huicai ZHONG, Yanbo ZHANG
  • 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: 10128351
    Abstract: Semiconductor devices and methods of manufacturing the same are provided. In one embodiment, the method may include: forming a first shielding layer on a substrate; forming one of source and drain regions with the first shielding layer as a mask; forming a second shielding layer on the substrate, and removing the first shielding layer; forming a shielding spacer on a sidewall of the second shielding layer; forming the other of the source and drain regions with the second shielding layer and the shielding spacer as a mask; removing at least a portion of the shielding spacer; and forming a gate dielectric layer, and forming a gate conductor as a spacer on a sidewall of the second shielding layer or a possible remaining portion of the shielding spacer.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: November 13, 2018
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huilong Zhu, Qingqing Liang, Huicai Zhong
  • Patent number: 9806169
    Abstract: Semiconductor devices and methods for manufacturing the same are provided. In one embodiment, the method may include: forming a first shielding layer on a substrate, and forming one of source and drain regions with the first shielding layer as a mask; forming a second shielding layer on the substrate, and forming the other of the source and drain regions with the second shielding layer as a mask; removing a portion of the second shielding layer which is next to the other of the source and drain regions; forming a gate dielectric layer, and forming a gate conductor as a spacer on a sidewall of a remaining portion of the second shielding layer; and forming a stressed interlayer dielectric layer on the substrate.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: October 31, 2017
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADAMY OF SCIENCES
    Inventors: Huilong Zhu, Qingqing Liang, Huicai Zhong
  • Publication number: 20170288037
    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: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Qingqing Liang, Haizhou Yin
  • Patent number: 9711612
    Abstract: A semiconductor device structure and a method for fabricating the same. A method for fabricating semiconductor device structure includes forming gate lines on a semiconductor substrate; forming gate sidewall spacers surrounding the gate lines; forming respective source/drain regions in the semiconductor substrate and on either side of the respective gate lines; forming conductive sidewall spacers surrounding the gate sidewall spacers; and cutting off the gate lines, the gate sidewall spacers and the conductive sidewall spacers at predetermined positions, in which the cut gate lines are electrically isolated gates, and the cut conductive sidewall spacers are electrically isolated lower contacts. The method is applicable to the manufacture of contacts in integrated circuits.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: July 18, 2017
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Qingqing Liang, Haizhou Yin
  • Patent number: 9653358
    Abstract: The present invention presents a method for manufacturing a semiconductor device structure as well as the semiconductor device structure. Said method comprises: providing a semiconductor substrate; forming a first insulating layer on the semiconductor substrate; forming a shallow trench isolation embedded in the first insulating layer and the semiconductor substrate; forming a channel region embedded in the semiconductor substrate; and forming a gate stack stripe on the channel region. Said method further comprises, before forming the channel region, performing a source/drain implantation on the semiconductor substrate. By means of forming the source/drain regions in a self-aligned manner before forming the channel region and the gate stack, said method achieves the advantageous effects of the replacement gate process without using a dummy gate, thereby simplifying the process and reducing the cost.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 16, 2017
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huicai Zhong, Qingqing Liang
  • Patent number: 9607877
    Abstract: The present invention provides a substrate structure, a semiconductor device, and a manufacturing method thereof. The substrate structure comprises: a semiconductor substrate; and a first isolation region, wherein the first isolation region comprises: a first trench extending through the semiconductor substrate; and a first dielectric layer filling the first trench. Due to the isolation region extending through the substrate, it is possible to make device structures on both surfaces of the substrate, so as to increase the utilization of the substrate and the integration degree of the devices.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 28, 2017
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huicai Zhong, Qingqing Liang
  • Patent number: 9543188
    Abstract: The present invention provides an isolation structure for a semiconductor substrate and a method for manufacturing the same, as well as a semiconductor device having the structure. The present invention relates to the field of semiconductor manufacture. The isolation structure comprises: a trench embedded in a semiconductor substrate; an oxide layer covering the bottom and sidewalls of the trench, and isolation material in the trench and on the oxide layer, wherein a portion of the oxide layer on an upper portion of the sidewalls of the trench comprises lanthanum-rich oxide. By the trench isolation structure according to the present invention, metal lanthanum in the lanthanum-rich oxide can diffuse into corners of the oxide layer of the gate stack, thus alleviating the impact of the narrow channel effect and making the threshold voltage adjustable.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: January 10, 2017
    Assignee: INSTITUTE OF MICROELECTONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Zhijiong Luo, Haizhou Yin, Huilong Zhu, Huicai Zhong
  • Patent number: 9425288
    Abstract: A method of manufacturing a FinFET semiconductor device is provided, wherein the semiconductor fins are formed in a parallel arrangement which intersects the gates arranged in parallel. The polycrystalline silicon layer is deposited and then converted into a single crystal silicon layer such that the single crystal silicon layer and the semiconductor fins are integrated in essence, i.e., the source/drain region in the semiconductor fins is raised and the top area of the semiconductor fins is extended. Subsequently, the single crystal silicon layer above the top of the semiconductor fins is converted into a metal silicide so as to form a source/drain region contact. The source/drain region contact in the present invention has a larger area than that in a conventional FinFET, which decreases the contact resistance and facilitates the formation of a self-aligned metal plug in the follow-up process.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: August 23, 2016
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Qingqing Liang, Chao Zhao
  • Patent number: 9419108
    Abstract: One embodiment of present invention provides a method for manufacturing a semiconductor structure, which comprises: forming a gate stack on a semiconductor substrate and removing parts of the substrates situated on two sides of the gate stack; forming sidewall spacers on sidewalls of the gate stack and on sidewalls of the part of the substrate under the gate stack; forming doped regions in parts of the substrate on two sides of the gate stack, and forming a first dielectric layer to cover the entire semiconductor structure; selectively removing parts of the gate stack and parts of the first dielectric layer to form a channel region opening and source/drain region openings; forming a high K dielectric layer on sidewalls of the channel region opening; and implementing epitaxy process to form a continuous fin structure that spans across the channel region opening and the source/drain region openings.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 16, 2016
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qingqing Liang, Huicai Zhong, Huilong Zhu, Chao Zhao, Tianchun Ye
  • Patent number: 9412657
    Abstract: In a method for manufacturing a semiconductor, a Through Silicon Via (TSV) template wafer and production wafers form a sandwich structure, in which the TSV template wafer has TSV structures uniformly distributed therein, for providing electrical connection between the production wafers to form 3D interconnection. The TSV template wafer is obtained by thinning a semiconductor wafer, which facilitates reducing the difficulty in etching and filling. Connection parts are provided on the TSV template wafer, for convenience of interconnection between the overlying and underlying production wafers, which facilitates reducing the difficulty in alignment and improving the convenience of design of electrical connection for 3D devices.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 9, 2016
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huicai Zhong, Chao Zhao, Huilong Zhu
  • Patent number: 9397007
    Abstract: The present invention provides a method for manufacturing a semiconductor structure, which comprises: a) forming gate lines extending in a direction on a substrate; b) forming a photoresist layer that covers the semiconductor structure; patterning the photoresist layer to form openings across the gate lines; c) narrowing the openings by forming a self-assembly copolymer inside the openings; and d) cutting the gate lines via the openings to make the gate lines insulated at the openings. Through forming an additional layer on the inner wall of the openings of the photoresist layer, the method for manufacturing a semiconductor structure provided by the present invention manages to reduce the distance between the two opposite walls of the openings in the direction of gate width, namely, the method manages to reduce the distance between the ends of electrically isolated gates located on the same line where it is unnecessary to manufacture a cut mask whose lines are extremely fine.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 19, 2016
    Assignee: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Huicai Zhong, Qingqing Liang, Da Yang, Chao Zhao