Patents by Inventor Chao-Yuan Chang

Chao-Yuan 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).

  • Patent number: 11968817
    Abstract: A semiconductor device includes a fin structure. A source/drain region is formed on the fin structure. A first gate structure is disposed over the fin structure. A source/drain contact is disposed over the source/drain region. The source/drain contact has a protruding segment that protrudes at least partially over the first gate structure. The source/drain contact electrically couples together the source/drain region and the first gate structure.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jui-Lin Chen, Chao-Yuan Chang, Ping-Wei Wang, Fu-Kai Yang, Ting Fang, I-Wen Wu, Shih-Hao Lin
  • Publication number: 20240128381
    Abstract: A power diode device includes a substrate. The substrate includes a core layer of a first conductive type, a first diffusion layer of the first conductive type, a second diffusion layer of a second conductive type, and a heavily doped region of the second conductive type. The core layer is located between the first diffusion layer and the second diffusion layer. A thickness of the core layer is greater than that of the second diffusion layer. The heavily doped region is located in the second diffusion layer and extends toward the core layer to form a PN junction between the heavily doped region and the core layer. A method for manufacturing the power diode device is also provided.
    Type: Application
    Filed: June 2, 2023
    Publication date: April 18, 2024
    Inventors: Ching Chiu TSENG, Tzu Yuan LO, Chao Yi CHANG
  • Publication number: 20230363132
    Abstract: A semiconductor device comprising a plurality of cells arranged in an array is disclosed. Each cell comprises: at least one active region arranged along a first direction; and at least five spaced apart conductive regions arranged along a second direction disposed over the active regions, wherein the first through fifth conductive regions comprise one or more conductors, wherein the one or more conductors have a dimension along the first direction. The dimension along the first direction is larger for at least one conductor in the first or fifth conductive regions than the dimension along the first direction for a conductor in the third conductive region. The pitch between conductors in the second and the fourth conductive region and the pitch between a conductor in the second or fourth conductive region and a conductor in a next closest conductive region that is not the second or fourth conductive region are different.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 9, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Feng-Ming Chang, Jui-wen Chang, Chao-Yuan Chang
  • Publication number: 20230354573
    Abstract: The present disclosure describes a memory structure including a memory cell array. The memory cell array includes memory cells and first n-type wells extending in a first direction. The memory structure also includes a second n-type well formed in a peripheral region of the memory structure. The second n-type well extends in a second direction and is in contact with a first n-type well of the first n-type wells. The memory structure further includes a pick-up region formed in the second n-type well. The pick-up region is electrically coupled to the first n-type well of first n-type wells.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Chuan Yang, Chao-Yuan CHANG, Shih-Hao LIN, Chia-Hao PAO, Feng-Ming CHANG, Lien-Jung HUNG, Ping-Wei WANG
  • Publication number: 20230335184
    Abstract: The current disclosure is directed to a SRAM bit cell having a reduced coupling capacitance. In a vertical direction, a wordline “WL” and a bitline “BL” of the SRAM cell are stacked further away from one another to reduce the coupling capacitance between the WL and the BL. In an embodiment, the WL is vertically spaced apart from the BL with one or more metallization level that none of the WL or the BL is formed from. Connection island structures or jumper structures are provided to connect the upper one of the WL or the BL to the transistors of the SRAM cell.
    Type: Application
    Filed: June 16, 2023
    Publication date: October 19, 2023
    Inventors: Chao-Yuan CHANG, Feng-Ming CHANG, Jui-Lin CHEN, Kian-Long LIM
  • Publication number: 20230262950
    Abstract: A method includes providing a substrate having an epitaxial stack of layers including a plurality of semiconductor channel layers interposed by a plurality of dummy layers. The substrate includes a first device region and a second device region. An etch process is performed to remove a first portion of the epitaxial stack of layers from the second device region to form a trench in the second device region. The removed first portion of the epitaxial stack of layers includes at least one semiconductor channel layer of the plurality of semiconductor channel layers. An epitaxial layer is formed within the trench in the second device region and over the second portion of the epitaxial stack of layers. A top surface of the epitaxial layer in the second device region is substantially level with a top surface of the epitaxial stack of layers in the first device region.
    Type: Application
    Filed: February 14, 2022
    Publication date: August 17, 2023
    Inventors: Chao-Yuan CHANG, Feng-Ming CHANG, Jui-Wen CHANG
  • Patent number: 11682451
    Abstract: The current disclosure is directed to a SRAM bit cell having a reduced coupling capacitance. In a vertical direction, a wordline “WL” and a bitline “BL” of the SRAM cell are stacked further away from one another to reduce the coupling capacitance between the WL and the BL. In an embodiment, the WL is vertically spaced apart from the BL with one or more metallization level that none of the WL or the BL is formed from. Connection island structures or jumper structures are provided to connect the upper one of the WL or the BL to the transistors of the SRAM cell.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: June 20, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chao-Yuan Chang, Kian-Long Lim, Jui-Lin Chen, Feng-Ming Chang
  • Publication number: 20230046028
    Abstract: SRAM designs based on GAA transistors are disclosed that provide flexibility for increasing channel widths of transistors at scaled IC technology nodes and relax limits on SRAM performance optimization imposed by FinFET-based SRAMs. GAA-based SRAM cells described have active region layouts with active regions shared by pull-down GAA transistors and pass-gate GAA transistors. A width of shared active regions that correspond with the pull-down GAA transistors are enlarged with respect to widths of the shared active regions that correspond with the pass-gate GAA transistors. A ratio of the widths is tuned to obtain ratios of pull-down transistor effective channel width to pass-gate effective channel width greater than 1, increase an on-current of pull-down GAA transistors relative to an on-current of pass-gate GAA transistors, decrease a threshold voltage of pull-down GAA transistors relative to a threshold voltage of pass-gate GAA transistors, and/or increases a ? ratio of an SRAM cell.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 16, 2023
    Inventors: Chia-Hao Pao, Chih-Chuan Yang, Shih-Hao Lin, Chih-Hsuan Chen, Kian-Long Lim, Chao-Yuan Chang, Feng-Ming Chang, Lien Jung Hung, Ping-Wei Wang
  • Publication number: 20220406372
    Abstract: A memory device is provided. The memory device includes a memory cell array having a plurality of memory cells arranged in a matrix of a plurality of rows and a plurality of columns. Each of the plurality of columns include a first plurality of memory cells connected to a first bit line and a second bit line. A pre-charge circuit is connected to the memory cell array. The pre-charge circuit pre-charges each of the first bit line and the second bit line from a first end. A pre-charge assist circuit is connected to the memory cell array. The pre-charge assist circuit pre-charges each of the first bit line and the second bit line from a second end, the second end being opposite the first end.
    Type: Application
    Filed: March 18, 2022
    Publication date: December 22, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Hao PAO, Kian-Long LIM, Chih-Chuan YANG, Jui-Wen CHANG, Chao-Yuan CHANG, Feng-Ming CHANG, Lien-Jung HUNG, Ping-Wei WANG
  • Publication number: 20220356594
    Abstract: A plating apparatus for electroplating a wafer includes a housing defining a plating chamber for housing a plating solution. A voltage source of the apparatus has a first terminal having a first polarity and a second terminal having a second polarity different than the first polarity. The first terminal is electrically coupled to the wafer. An anode is within the plating chamber, and the second terminal is electrically coupled to the anode. A membrane support is within the plating chamber and over the anode. The membrane support defines apertures, wherein in a first zone of the membrane support a first aperture-area to surface-area ratio is a first ratio, and in a second zone of the membrane support a second aperture-area to surface-area ratio is a second ratio, different than the first ratio.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Che-Min LIN, Hung-San Lu, Chao-Lung Chen, Chao Yuan Chang, Chun-An Kung, Chin-Hsin Hsiao, Wen-Chun Hou, Szu-Hung Yang, Ping-Ching Jiang
  • Patent number: 11401624
    Abstract: A plating apparatus for electroplating a wafer includes a housing defining a plating chamber for housing a plating solution. A voltage source of the apparatus has a first terminal having a first polarity and a second terminal having a second polarity different than the first polarity. The first terminal is electrically coupled to the wafer. An anode is within the plating chamber, and the second terminal is electrically coupled to the anode. A membrane support is within the plating chamber and over the anode. The membrane support defines apertures, wherein in a first zone of the membrane support a first aperture-area to surface-area ratio is a first ratio, and in a second zone of the membrane support a second aperture-area to surface-area ratio is a second ratio, different than the first ratio.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: August 2, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Che-Min Lin, Hung-San Lu, Chao-Lung Chen, Chao Yuan Chang, Chun-An Kung, Chin-Hsin Hsiao, Wen-Chun Hou, Szu-Hung Yang, Ping-Ching Jiang
  • Publication number: 20220181332
    Abstract: A semiconductor device includes a fin structure. A source/drain region is formed on the fin structure. A first gate structure is disposed over the fin structure. A source/drain contact is disposed over the source/drain region. The source/drain contact has a protruding segment that protrudes at least partially over the first gate structure. The source/drain contact electrically couples together the source/drain region and the first gate structure.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Inventors: Jui-Lin Chen, Chao-Yuan Chang, Ping-Wei Wang, Fu-Kai Yang, Ting Fang, I-Wen Wu, Shih-Hao Lin
  • Patent number: 11264393
    Abstract: A semiconductor device includes a fin structure. A source/drain region is formed on the fin structure. A first gate structure is disposed over the fin structure. A source/drain contact is disposed over the source/drain region. The source/drain contact has a protruding segment that protrudes at least partially over the first gate structure. The source/drain contact electrically couples together the source/drain region and the first gate structure.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 1, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jui-Lin Chen, Chao-Yuan Chang, Ping-Wei Wang, Fu-Kai Yang, Ting Fang, I-Wen Wu, Shih-Hao Lin
  • Publication number: 20220025540
    Abstract: A plating apparatus for electroplating a wafer includes a housing defining a plating chamber for housing a plating solution. A voltage source of the apparatus has a first terminal having a first polarity and a second terminal having a second polarity different than the first polarity. The first terminal is electrically coupled to the wafer. An anode is within the plating chamber, and the second terminal is electrically coupled to the anode. A membrane support is within the plating chamber and over the anode. The membrane support defines apertures, wherein in a first zone of the membrane support a first aperture-area to surface-area ratio is a first ratio, and in a second zone of the membrane support a second aperture-area to surface-area ratio is a second ratio, different than the first ratio.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 27, 2022
    Inventors: Che-Min Lin, Hung-San Lu, Chao-Lung Chen, Chao Yuan Chang, Chun-An Kung, Chin-Hsin Hsiao, Wen-Chun Hou, Szu-Hung Yang, Ping-Ching Jiang
  • Publication number: 20210383859
    Abstract: The current disclosure is directed to a SRAM bit cell having a reduced coupling capacitance. In a vertical direction, a wordline “WL” and a bitline “BL” of the SRAM cell are stacked further away from one another to reduce the coupling capacitance between the WL and the BL. In an embodiment, the WL is vertically spaced apart from the BL with one or more metallization level that none of the WL or the BL is formed from. Connection island structures or jumper structures are provided to connect the upper one of the WL or the BL to the transistors of the SRAM cell.
    Type: Application
    Filed: August 19, 2021
    Publication date: December 9, 2021
    Inventors: Chao-Yuan CHANG, Kian-Long LIM, Jui-Lin CHEN, Feng-Ming CHANG
  • Publication number: 20210366831
    Abstract: An SRAM device and method of forming include pass gate (PG), pull-down (PD), and pull-up (PU) transistors. A first gate line of the PG and a second gate line of the PD and the PU extend in a first direction. A common source/drain of the PG, PD, and PU transistors interposes the first and second gate lines and another source/drain of the PG transistor. A first contact extends from the common source/drain and a second contact extends from the another source/drain. A third contact is disposed above the second contact with a first width in the first direction and a first length in a second direction, first length being greater than the first width.
    Type: Application
    Filed: June 7, 2021
    Publication date: November 25, 2021
    Inventors: Chao-Yuan CHANG, Jui-Lin CHEN, Kian-Long LIM, Feng-Ming CHANG
  • Patent number: 11121078
    Abstract: A semiconductor device includes a gate structure, a source/drain, a first via that is disposed over the gate structure and the source/drain, and a first metal line having a more elevated vertical position than the first via in a cross-sectional view. The first via is electrically coupled to both the gate structure and the source/drain. The first metal line and the first via each extends in a first direction. A first distance separates the metal line from the via in a second direction different from the first direction. The first metal line includes a protruding portion that protrudes outwardly in the second direction.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: September 14, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jui-Lin Chen, Chao-Yuan Chang, Yu-Kuan Lin, Chang-Ta Yang, Ping-Wei Wang
  • Patent number: 11114153
    Abstract: The current disclosure is directed to a SRAM bit cell having a reduced coupling capacitance. In a vertical direction, a wordline “WL” and a bitline “BL” of the SRAM cell are stacked further away from one another to reduce the coupling capacitance between the WL and the BL. In an embodiment, the WL is vertically spaced apart from the BL with one or more metallization level that none of the WL or the BL is formed from. Connection island structures or jumper structures are provided to connect the upper one of the WL or the BL to the transistors of the SRAM cell.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: September 7, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chao-Yuan Chang, Kian-Long Lim, Jui-Lin Chen, Feng-Ming Chang
  • Publication number: 20210217467
    Abstract: The current disclosure is directed to a SRAM bit cell having a reduced coupling capacitance. In a vertical direction, a wordline “WL” and a bitline “BL” of the SRAM cell are stacked further away from one another to reduce the coupling capacitance between the WL and the BL. In an embodiment, the WL is vertically spaced apart from the BL with one or more metallization level that none of the WL or the BL is formed from. Connection island structures or jumper structures are provided to connect the upper one of the WL or the BL to the transistors of the SRAM cell.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 15, 2021
    Inventors: Chao-Yuan CHANG, Kian-Long LIM, Jui-Lin CHEN, Feng-Ming CHANG
  • Patent number: 11031336
    Abstract: An SRAM device and method of forming include pass gate (PG), pull-down (PD), and pull-up (PU) transistors. A first gate line of the PG and a second gate line of the PD and the PU extend in a first direction. A common source/drain of the PG, PD, and PU transistors interposes the first and second gate lines and another source/drain of the PG transistor. A first contact extends from the common source/drain and a second contact extends from the another source/drain. A third contact is disposed above the second contact with a first width in the first direction and a first length in a second direction, first length being greater than the first width.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 8, 2021
    Inventors: Chao-Yuan Chang, Jui-Lin Chen, Kian-Long Lim, Feng-Ming Chang