Patents by Inventor Sheng-Wei Yang

Sheng-Wei Yang 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).

  • Publication number: 20250275249
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Application
    Filed: May 15, 2025
    Publication date: August 28, 2025
    Applicant: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Patent number: 12336288
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: June 17, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Publication number: 20230014320
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Application
    Filed: September 19, 2022
    Publication date: January 19, 2023
    Applicant: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Patent number: 11488981
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: November 1, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Publication number: 20220028903
    Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
  • Patent number: 10891410
    Abstract: In an example embodiment, a computer-implemented method is provided for receiving an integrated circuit design, wherein the integrated circuit design comprises at least one position in violation of one or more design rules associated with the integrated design, identifying one or more design patterns at the at least one violating position, generating one or more pattern graphs for the one or more design patterns, extracting a system on chip design for transformation into a block graph, and. comparing the block graph with each of the one or more pattern graphs to determine whether the at least one violating position is cleared. In circumstances where a match is found between the block graph and the each of the one or more pattern graphs, the computer-implemented method further comprises changing the one or more design patterns and repeating the step of comparing until there is no further match found.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 12, 2021
    Assignee: Synopsys, Inc.
    Inventors: Chin-Hsiung Hsu, Philip Hui-Yuh Tai, Sheng-Wei Yang, Guo-Ting Wang
  • Patent number: 10854514
    Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: December 1, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
  • Patent number: 10388564
    Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: August 20, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
  • Publication number: 20190252251
    Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
  • Publication number: 20170200722
    Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including: forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive fine and the contact.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 13, 2017
    Inventors: Tieh-Chiang WU, Wen-Chieh WANG, Sheng-Wei YANG
  • Patent number: 9419001
    Abstract: A method for forming a cell contact. A substrate having first and second protruding structures is prepared. An etch stop layer is deposited over the substrate. A sacrificial layer is deposited on the etch stop layer. The sacrificial layer is recessed. Spacers are formed on the top surface of the sacrificial layer. A portion of the sacrificial layer not covered by the spacers is etched away, thereby forming a recess. A gap filling material layer is deposited into the recess. An upper portion of the gap filling material layer and the spacers are removed to expose the top surface of the sacrificial layer. The sacrificial layer is removed to form contact holes. A punch etching process is performed to remove the etch stop layer from bottoms of the contact holes. The contact holes is filled up with a conductive material layer.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 16, 2016
    Assignee: INOTERA MEMORIES, INC.
    Inventors: Sheng-Wei Yang, Tieh-Chiang Wu, Wen-Chieh Wang
  • Publication number: 20150340320
    Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.
    Type: Application
    Filed: August 4, 2015
    Publication date: November 26, 2015
    Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
  • Patent number: 9117759
    Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: August 25, 2015
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
  • Patent number: 9041099
    Abstract: The present invention provides a single-sided access device including an active fin structure comprising a source region and a drain region; an insulating layer interposed between the source region and the drain region; a trench isolation structure disposed at one side of the active fin structure; a single-sided sidewall gate electrode disposed on the other side of the active fin structure opposite to the trench isolation structure so that the active fin structure is sandwiched by trench isolation structure and the single-sided sidewall gate electrode; and a gate protrusion laterally and electrically extended from the single-sided sidewall gate electrode and embedded between the source region and the drain region under the insulating layer.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 26, 2015
    Assignee: NANYA TECHNOLOGY CORP.
    Inventors: Shyam Surthi, Sheng-Wei Yang
  • Patent number: 9012303
    Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: April 21, 2015
    Assignee: Nanya Technology Corporation
    Inventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
  • Publication number: 20150037961
    Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.
    Type: Application
    Filed: October 21, 2014
    Publication date: February 5, 2015
    Inventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
  • Patent number: 8901631
    Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 2, 2014
    Assignee: Nanya Technology Corporation
    Inventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
  • Publication number: 20140252532
    Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: NANYA TECHNOLOGY CORPORATION
    Inventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
  • Publication number: 20130037919
    Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
  • Patent number: 8334196
    Abstract: A method of forming a conductive contact includes forming a structure comprising an upper surface joining with a sidewall surface. The sidewall surface contains elemental-form silicon. Silicon is epitaxially grown from the sidewall surface. Dielectric material is formed over the upper surface and the epitaxially-grown silicon. A conductive contact is formed through the dielectric material to conductively connect with the upper surface.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: December 18, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Ying-Cheng Chuang, Hung-Ming Tsai, Sheng-Wei Yang, Ping-Cheng Hsu, Ming-Cheng Chang