Patents by Inventor Meng-Sheng Chang

Meng-Sheng Chang 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: 20230066081
    Abstract: Disclosed herein are related to a memory array including a set of memory cells and a set of switches to configure the set of memory cells. In one aspect, each switch is connected between a corresponding local line and a corresponding subset of memory cells. The local clines may be connected to a global line. Local lines may be metal rails, for example, local bit lines or local select lines. A global line may be a metal rail, for example, a global bit line or a global select line. A switch may be enabled or disabled to electrically couple a controller to a selected subset of memory cells through the global line. Accordingly, the set of memory cells can be configured through the global line rather than a number of metal rails to achieve area efficiency.
    Type: Application
    Filed: August 28, 2021
    Publication date: March 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Sheng Chang, Chia-En HUANG, Yi-Ching LIU, Yih Wang
  • Publication number: 20230062566
    Abstract: Disclosed herein are related to a memory array. In one aspect, the memory array includes a set of resistive storage circuits including a first subset of resistive storage circuits connected between a first local line and a second local line in parallel. The first local line and the second local line may extend along a first direction. In one aspect, for each resistive storage circuit of the first subset of resistive storage circuits, current injected at a first common entry point of the first local line exits through a first common exit point of the second local line, such that each resistive storage circuit of the first subset of resistive storage circuits may have same or substantial equal resistive loading.
    Type: Application
    Filed: August 28, 2021
    Publication date: March 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Sheng CHANG, Chia-En HUANG, Yi-Ching LIU, Yih WANG
  • Publication number: 20230060167
    Abstract: An OTP memory device includes a substrate, a first transistor, a second transistor, a first word line, second word line, and a bit line. The first transistor includes a first gate structure, and first and second source/drain regions on opposite sides of the first gate structure. The second transistor is operable in an inversion mode, and the second transistor includes a second gate structure having more work function metal layers than the first gate structure of the first transistor, and second and third source/drain regions on opposite sides of the second gate structure. The first word line is over and electrically connected to the first gate structure of the first transistor. The second word line is over and electrically connected to the second gate structure of the second transistor. The bit line is over and electrically connected to the first source/drain region of the first transistor.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Sheng CHANG, Chia-En HUANG, Yih WANG
  • Publication number: 20230064518
    Abstract: In one aspect of the present disclosure, a semiconductor device is disclosed. In some embodiments, the semiconductor device includes a first conductive structure extending in a first direction, the first conductive structure coupled to a metal-oxide-semiconductor (MOS) device; a second conductive structure extending in the first direction and spaced from the first conductive structure in a second direction perpendicular to the first direction; a dielectric material extending in the second direction and disposed over, in a third direction perpendicular to the first direction and the second direction, the first conductive structure; and a via structure disposed over the second conductive structure and in contact with the dielectric material, wherein the dielectric material is configured to create a channel between the first conductive structure and the via structure when a voltage is applied to the second conductive structure.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsiang-Wei Liu, Yao-Jen Yang, Meng-Sheng Chang
  • Publication number: 20230054577
    Abstract: A method for operating a memory device is provided. A first address is decoded to select a bit line of a memory device. A second address is decoded to select a word line of the memory device. A word line voltage is applied to the selected word line. A bit line voltage is applied to the selected bit line. A first bias voltage is applied to each of a plurality of unselected word lines connected to a plurality of memory cells connected to the selected bit line san a memory cell connected to both the selected bit line and the selected word line.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 23, 2023
    Inventors: Meng-Sheng CHANG, Chia-En HUANG, Gu-Huan LI
  • Publication number: 20230058880
    Abstract: An OTP memory cell is provided. The OTP memory cell includes: an antifuse transistor, wherein a gate terminal of the antifuse transistor is connected to a first word line having a first signal, and the antifuse transistor is selectable between a first state and a second state in response to the first signal; and a selection transistor connected between the antifuse transistor and a bit line, wherein a gate terminal of the selection transistor is connected to a second word line having a second signal, and the selection transistor is configured to provide access to the antifuse transistor in response to the second signal. A first terminal of the antifuse transistor is a vacancy terminal, and a second terminal of the antifuse transistor is connected to the selection transistor.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 23, 2023
    Inventors: Meng-Sheng Chang, Chia-En Huang
  • Publication number: 20230037696
    Abstract: In some aspects of the present disclosure, a memory circuit is disclosed. In some aspects, the memory circuit includes a first storage element coupled to a first bit line, a first transistor coupled between the first storage element and a center node, a second storage element coupled to a second bit line, a second transistor coupled between the second storage element and the center node, and a third transistor coupled between the center node and a reference node.
    Type: Application
    Filed: January 28, 2022
    Publication date: February 9, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ku-Feng Lin, Perng-Fei Yuh, Meng-Sheng Chang
  • Publication number: 20230043443
    Abstract: A memory device is disclosed. The memory device includes a plurality of memory cells, each of the memory cells including an access transistor and a resistor coupled to each other in series. The resistors of the memory cells are each formed as one of a plurality of interconnect structures disposed over a substrate. The access transistors of the memory cells are disposed opposite a first metallization layer containing the plurality of interconnect structures from the substrate.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 9, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yih Wang
  • Patent number: 11569248
    Abstract: An integrated circuit is disclosed. The integrated circuit includes a transistor, a first fuse element and a second fuse element. The transistor is formed in a first conductive layer. The first fuse element is formed in a second conductive layer disposed above the first conductive layer. The second fuse element is formed in the second conductive layer and is coupled to the first fuse element. The transistor is coupled through the first fuse element to a first data line for receiving a first data signal, and the transistor is coupled through the second fuse element to a second data line for receiving a second data signal. A method of fabricating an integrated circuit (IC) is also disclosed herein.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: January 31, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Meng-Sheng Chang, Yao-Jen Yang
  • Patent number: 11569249
    Abstract: A method of manufacturing an anti-fuse device includes forming an anti-fuse structure on a substrate, forming a first transistor at a first position away from the anti-fuse device in a first direction, and forming a second transistor at a second position away from the anti-fuse device in a second direction opposite the first direction. Forming the anti-fuse structure includes forming first and second S/D structures in an active area, the first transistor includes the first S/D structure, and the second transistor includes the second S/D structure. The method includes constructing a first electrical connection between gate structures of the first and second transistors and a second electrical connection between a third S/D structure of the first transistor and a fourth S/D structure of the second transistor.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 31, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Min-Shin Wu, Meng-Sheng Chang, Shao-Yu Chou, Yao-Jen Yang
  • Patent number: 11563015
    Abstract: A memory device includes a first transistor. The first transistor includes one or more first semiconductor nanostructures spaced apart from one another along a first direction. Each of the one or more first semiconductor nanostructures has a first width along a second direction perpendicular to the first direction. The memory device also includes a second transistor coupled to the first transistor in series. The second transistor includes one or more second semiconductor nanostructures spaced apart from one another along the first direction. Each of the one or more second semiconductor nanostructures has a second, different width along the second direction.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: January 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yi-Hsun Chiu, Yih Wang
  • Patent number: 11563014
    Abstract: A memory cell is disclosed. The memory cell includes a first transistor. The first transistor includes a first conduction channel collectively constituted by one or more first nanostructures spaced apart from one another along a vertical direction. The memory cell includes a second transistor electrically coupled to the first transistor in series. The second transistor includes a second conduction channel collectively constituted by one or more second nanostructures spaced apart from one another along the vertical direction. At least one of the one or more first nanostructures is applied with first stress by a first metal structure extending, along the vertical direction, into a first drain/source region of the first transistor.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: January 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yi-Hsun Chiu, Yih Wang
  • Patent number: 11562998
    Abstract: An integrated circuit (IC) structure includes a semiconductor substrate, a shallow trench isolation (STI) region, and a capacitor. The STI region is embedded in the semiconductor substrate. The capacitor includes first and second conductive stacks. The first conductive stack includes a first dummy gate strip disposed entirely within the STI region and a plurality of first metal dummy gate contacts landing on the first metal capacitor strip. The second conductive stack includes a second dummy gate strip disposed entirely within the STI region and extending in parallel with the first dummy gate strip, and a plurality of second dummy gate contacts landing on the second dummy gate strip, wherein the first conductive stack is electrically isolated from the second conductive stack.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 24, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Han Lin, Meng-Sheng Chang
  • Patent number: 11532752
    Abstract: A memory device includes a substrate, a semiconductor fin over the substrate and extending in a first direction, and a first gate electrode and a second gate electrode over the substrate and extending in a second direction. The semiconductor fin extends through the second gate electrode and terminates on the first gate electrode at one end. The memory device further includes a first conductive via over and electrically coupled to the first gate electrode. The one end of the semiconductor fin is surrounded by the first gate electrode.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: December 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yao-Jen Yang, Yih Wang
  • Patent number: 11527541
    Abstract: A memory device includes an anti-fuse cell array having a plurality of anti-fuse cells, each of the plurality of anti-fuse cells having a first transistor and a second transistor connected to the first transistor. A first terminal of the first transistor is connected to a bit line and the bit line is a buried rail formed in a substrate of the first transistor and the second transistor.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: December 13, 2022
    Assignee: TAIWAN SEMICONDUCTOH MANUFACTUHING COMPANY LIMITED
    Inventors: Meng-Sheng Chang, Chia-En Huang
  • Publication number: 20220383934
    Abstract: In some aspects of the present disclosure, a memory device is disclosed. In some aspects, the memory device includes a plurality of memory cells arranged in a plurality of rows and a plurality of columns; a plurality of word lines, each of the word lines coupled to a corresponding row of the memory cells; a plurality of bit lines, each of the bit lines coupled to a corresponding column of the memory cells; and a plurality of second word lines, each of the second word lines coupled to a corresponding column of the memory cells.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 1, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yoshitaka Yamauchi, Meng-Sheng Chang, Hiroki Noguchi, Perng-Fei Yuh
  • Publication number: 20220384462
    Abstract: A method of making a ROM structure includes the operations of forming an active area having a channel, a source region, and a drain region; depositing a gate electrode over the channel; depositing a conductive line over at least one of the source region and the drain region; adding dopants to the source region and the drain region of the active area; forming contacts to the gate electrode, the source region, and the drain; depositing a power rail, a bit line, and at least one word line of the integrated circuit against the contacts; and dividing the active area with a trench isolation structure to electrically isolate the gate electrode from the source region and the drain region.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Inventors: Geng-Cing LIN, Ze-Sian LU, Meng-Sheng CHANG, Chia-En HUANG, Jung-Ping YANG, Yen-Huei CHEN
  • Publication number: 20220384339
    Abstract: A method (fabricating a fusible structure) includes forming a metal line that extends in a first direction, the forming a metal line including: configuring the mask such that the metal line has a first portion that is between a second portion and a third portion; and using an optical proximity correction technique with a mask so that the first portion has a first thickness that is thinner than a second thickness of each of the second portion and the third portion; and forming a first dummy structure proximal to the metal line and aligned with the first portion relative to the first direction.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Inventors: Shao-Ting WU, Meng-Sheng CHANG, Shao-Yu CHOU, Chung-I HUANG
  • Publication number: 20220375859
    Abstract: In the present disclosure, a semiconductor structure includes an Mx-1 layer including a first dielectric layer and first metal features, wherein the first metal features include a first set of first metal features in a first region and a second set of first metal features in a second region, wherein the first set has a first pattern density and the second set has a second pattern density being greater than the first pattern density. The structure further includes a Vx layer disposed over the Mx-1 layer, the Vx layer including first vias contacting the first set of the first metal features. The structure further includes an Mx layer disposed over the Vx layer, the Mx layer including a fuse element, wherein the fuse element has a first thickness in the first region less than a second thickness in the second region.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 24, 2022
    Inventors: An-Jiao Fu, Po-Hsiang Huang, Derek Hsu, Hsiu-Wen Hsueh, Meng-Sheng Chang
  • Publication number: 20220367489
    Abstract: A memory device is disclosed. The memory device includes a substrate having a first side and a second side that is opposite to the first side, and a transistor disposed on the first side of the substrate. The memory device includes a capacitor electrically connected to the transistor and including a first terminal, a second terminal, and an insulation layer interposed between the first and second terminals, at least the insulation layer disposed on the second side of the substrate. The transistor and the capacitor form a one-time programmable (OTP) memory cell.
    Type: Application
    Filed: September 13, 2021
    Publication date: November 17, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Meng-Sheng Chang, Chia-En Huang, Yih Wang