Patents by Inventor Yuan-Tai Tseng

Yuan-Tai Tseng 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: 10157706
    Abstract: An inductor structure is provided. The inductor structure includes a first dielectric layer formed over a substrate and a magnetic layer formed over the first dielectric layer. The magnetic layer has a planar top surface, a planar bottom surface, a protruding portion surrounding the planar top surface, and the protruding portion is higher than the planar top surface.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 18, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yuan-Tai Tseng, Ming-Chyi Liu, Chung-Yen Chou, Chia-Shiung Tsai
  • Publication number: 20180351081
    Abstract: The present disclosure provides a semiconductor structure, including an Nth metal layer, a bottom electrode over the Nth metal layer, a magnetic tunneling junction (MTJ) over the bottom electrode, a top electrode over the MTJ, and an (N+M)th metal layer over the Nth metal layer. N and M are positive integers. The (N+M)th metal layer surrounds a portion of a sidewall of the top electrode. A manufacturing method of forming the semiconductor structure is also provided.
    Type: Application
    Filed: July 30, 2018
    Publication date: December 6, 2018
    Inventors: Fu-Ting SUNG, Chung-Chiang MIN, Yuan-Tai TSENG, Chern-Yow HSU, Shih-Chang LIU
  • Publication number: 20180309055
    Abstract: The present disclosure relates to a resistive random access memory (RRAM) device architecture, that includes a thin single layer of a conductive etch-stop layer between a lower metal interconnect and a bottom electrode of an RRAM cell. The conductive etch-stop layer provides simplicity in structure and the etch-selectivity of this layer provides protection to the underlying layers. The conductive etch stop layer can be etched using a dry or wet etch to land on the lower metal interconnect. In instances where the lower metal interconnect is copper, etching the conductive etch stop layer to expose the copper does not produce as much non-volatile copper etching by-products as in traditional methods. Compared to traditional methods, some embodiments of the disclosed techniques reduce the number of mask step and also reduce chemical mechanical polishing during the formation of the bottom electrode.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 25, 2018
    Inventors: Ming Chyi Liu, Yuan-Tai Tseng, Chern-Yow Hsu, Shih-Chang Liu, Chia-Shiung Tsai
  • Publication number: 20180301624
    Abstract: A memory device includes a bottom electrode, a resistance switching element, a top electrode, a spacer and a conductive feature. The resistance switching element is over the bottom electrode. The top electrode is over the resistance switching electrode. The spacer abuts the resistance switching element. The conductive feature is over the top electrode. The spacer is at least partially between the conductive feature and the top electrode.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 18, 2018
    Inventors: Tsung-Hsueh Yang, Yuan-Tai Tseng, Yi-Jen Tsai, Shih-Chang Liu
  • Publication number: 20180277381
    Abstract: A method of planarizing a semiconductor device includes forming a first region and a second region on a semiconductor substrate. The first region has a larger thickness than a thickness of the second region. An interlayer dielectric layer is conformally deposited on the first region and the second region. A photoresist is formed on the second region. A bottom anti-reflective coating layer is formed on the photoresist, first region and second region. A planarization process is performed to the semiconductor substrate. The planarization process to the first region and the second region includes removing portions of the interlayer dielectric layer, the photoresist and the BARC layer.
    Type: Application
    Filed: January 29, 2018
    Publication date: September 27, 2018
    Inventors: Yi-Jen TSAI, Yuan-Tai TSENG, Shih-Chang LIU
  • Patent number: 10003022
    Abstract: The present disclosure relates to a resistive random access memory (RRAM) device architecture, that includes a thin single layer of a conductive etch-stop layer between a lower metal interconnect and a bottom electrode of an RRAM cell. The conductive etch-stop layer provides simplicity in structure and the etch-selectivity of this layer provides protection to the underlying layers. The conductive etch stop layer can be etched using a dry or wet etch to land on the lower metal interconnect. In instances where the lower metal interconnect is copper, etching the conductive etch stop layer to expose the copper does not produce as much non-volatile copper etching by-products as in traditional methods. Compared to traditional methods, some embodiments of the disclosed techniques reduce the number of mask step and also reduce chemical mechanical polishing during the formation of the bottom electrode.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 19, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming Chyi Liu, Yuan-Tai Tseng, Chern-Yow Hsu, Shih-Chang Liu, Chia-Shiung Tsai
  • Publication number: 20180137966
    Abstract: An inductor structure is provided. The inductor structure includes a first dielectric layer formed over a substrate and a magnetic layer formed over the first dielectric layer. The magnetic layer has a planar top surface, a planar bottom surface, a protruding portion surrounding the planar top surface, and the protruding portion is higher than the planar top surface.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 17, 2018
    Inventors: Yuan-Tai Tseng, Ming-Chyi Liu, Chung-Yen Chou, Chia-Shiung Tsai
  • Patent number: 9954100
    Abstract: A method includes forming a gate spacer along sidewalls of a gate structure, forming a source region and a drain region on opposite sides of the gate structure, wherein a sidewall of the source region is vertically aligned with a first sidewall of the gate spacer, depositing a dielectric layer over the substrate, depositing a conductive layer over the dielectric layer, patterning the dielectric layer and the conductive layer to form a field plate, wherein the dielectric layer comprises a horizontal portion extending from the second drain/source region to a second sidewall of the gate spacer and a vertical portion formed along the second sidewall of the gate spacer, forming a plurality of metal silicide layers by applying a salicide process to the conductive layer, the gate structure, the first drain/source region and the second drain/source region and forming contact plugs over the plurality of metal silicide layers.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: April 24, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Chyi Liu, Pei-Lun Wang, Yuan-Tai Tseng, Yu-Hsing Chang, Shih-Chang Liu
  • Patent number: 9935119
    Abstract: The present disclosure relates to a flash memory cell. In some embodiments, the flash memory cell has a control gate arranged over a substrate, and a select gate separated from the substrate by a gate dielectric layer. A charge trapping layer has a first portion disposed between the select gate and the control gate, and a second portion arranged under the control gate. A first control gate spacer is arranged on the second portion of the charge trapping layer. A second control gate spacer is arranged on the second portion of the charge trapping layer and is separated from the control gate by the first control gate spacer.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: April 3, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuan-Tai Tseng, Chang-Ming Wu, Shih-Chang Liu
  • Patent number: 9865389
    Abstract: An inductor structure is provided. The inductor structure includes a first dielectric layer formed over a substrate and a first metal layer formed in the first dielectric layer. The inductor structure includes a magnetic layer formed over the first dielectric layer, and the magnetic layer has a main portion and a tapered portion extending from the main portion.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: January 9, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Yuan-Tai Tseng, Ming-Chyi Liu, Chung-Yen Chou, Chia-Shiung Tsai
  • Publication number: 20170309816
    Abstract: A method of manufacturing an integrated circuit device. In the method, a plurality of contacts are formed over a substrate, and one or more bottom electrode layers are formed over the plurality of contacts. A first dielectric layer is formed such that a first base region of the first dielectric layer is in contact with the one or more bottom electrode layers and a second base region of the first dielectric layer is not in contact with the one or more bottom electrode layers. One or more top electrode layers are formed over the first dielectric layer. Patterning is then performed by etching through the one or more top electrode layers and by etching through the first dielectric layer to form a metal-insulator-metal structure. The patterning removes a portion of the second base region, but does not remove the first base region.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 26, 2017
    Inventors: Ming Chyi Liu, Yuan-Tai Tseng, Shih-Chang Liu, Chia-Shiung Tsai
  • Patent number: 9786674
    Abstract: Provided is a method of forming a decoupling capacitor device and the device thereof. The decoupling capacitor device includes a first dielectric layer portion that is deposited in a deposition process that also deposits a second dielectric layer portion for a non-volatile memory cell. Both portions are patterned using a single mask. A system-on-chip (SOC) device is also provided, the SOC include an RRAM cell and a decoupling capacitor situated in a single inter-metal dielectric layer. Also a method for forming a process-compatible decoupling capacitor is provided. The method includes patterning a top electrode layer, an insulating layer, and a bottom electrode layer to form a non-volatile memory element and a decoupling capacitor.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 10, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chung-Chiang Min, Chang-Ming Wu, Shih-Chang Liu, Yuan-Tai Tseng
  • Publication number: 20170278963
    Abstract: A method includes forming a gate spacer along sidewalls of a gate structure, forming a source region and a drain region on opposite sides of the gate structure, wherein a sidewall of the source region is vertically aligned with a first sidewall of the gate spacer, depositing a dielectric layer over the substrate, depositing a conductive layer over the dielectric layer, patterning the dielectric layer and the conductive layer to form a field plate, wherein the dielectric layer comprises a horizontal portion extending from the second drain/source region to a second sidewall of the gate spacer and a vertical portion formed along the second sidewall of the gate spacer, forming a plurality of metal silicide layers by applying a salicide process to the conductive layer, the gate structure, the first drain/source region and the second drain/source region and forming contact plugs over the plurality of metal silicide layers.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 28, 2017
    Inventors: Ming-Chyi Liu, Pei-Lun Wang, Yuan-Tai Tseng, Yu-Hsing Chang, Shih-Chang Liu
  • Patent number: 9768220
    Abstract: Some embodiments of the present disclosure relate to a deep trench isolation structure. This deep trench isolation structure is formed on a semiconductor substrate having an upper semiconductor surface. A deep trench, which has a deep trench width as measured between opposing deep trench sidewalls, extends into the semiconductor substrate beneath the upper semiconductor surface. A fill material is formed in the deep trench, and a dielectric liner is disposed on a lower surface and sidewalls of the deep trench to separate the fill material from the semiconductor substrate. A shallow trench region has sidewalls that extend upwardly from the sidewalls of the deep trench to the upper semiconductor surface. The shallow trench region has a shallow trench width that is greater than the deep trench width. A dielectric material fills the shallow trench region and extends over top of the conductive material in the deep trench.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: September 19, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuan-Tai Tseng, Yu-Hsing Chang, Ming Chyi Liu, Shih-Chang Liu, Chia-Shiung Tsai
  • Publication number: 20170263616
    Abstract: A nonvolatile memory embedded in an advanced logic circuit and a method forming the same are provided. In the nonvolatile memory, the word lines and erase gates have top surfaces lower than the top surfaces of the control gate. In addition, the word lines and the erase gates are surrounded by dielectric material before a self-aligned silicidation process is performed. Therefore, no metal silicide can be formed on the word lines and the erase gate to produce problems of short circuit and current leakage in a later chemical mechanical polishing process.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chang-Ming WU, Wei-Cheng WU, Yuan-Tai TSENG, Shih-Chang LIU, Chia-Shiung TSAI, Ru-Liang LEE, Harry Hak-Lay CHUANG
  • Patent number: 9741868
    Abstract: The present disclosure relates to a self-aligned split gate memory cell, and an associated method. The self-aligned split gate memory cell has a memory gate with a flat top surface. A memory gate spacer is arranged directly above the memory gate having a lateral dimension smaller than that of the memory gate. The memory gate spacer has an inner sidewall disposed along an upper portion of a charge trapping layer and an outer sidewall recessed back laterally relative to an outer sidewall of the memory gate. In some embodiments, a dielectric liner is continuously lined the outer sidewall of the memory gate, extending on a portion of the top surface of the memory gate not covered by the memory gate spacer, and extending upwardly along the outer sidewall of the memory gate spacer.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 22, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuan-Tai Tseng, Chang-Ming Wu, Shih-Chang Liu
  • Patent number: 9728719
    Abstract: An integrated circuit device includes a resistive random access memory (RRAM) cell or a MIM capacitor cell having a dielectric layer, a top conductive layer, and a bottom conductive layer. The dielectric layer includes a peripheral region adjacent an edge of the dielectric layer and a central region surrounded by the peripheral region. The top conductive layer abuts and is above dielectric layer. The bottom conductive layer abuts and is below the dielectric layer in the central region, but does not abut the dielectric layer the peripheral region of the cell. Abutment can be prevented by either an additional dielectric layer between the bottom conductive layer and the dielectric layer that is exclusively in the peripheral region or by cutting of the bottom electrode layer short of the peripheral region. Damage or contamination at the edge of the dielectric layer does not result in leakage currents.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 8, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming Chyi Liu, Yuan-Tai Tseng, Shih-Chang Liu, Chia-Shiung Tsai
  • Publication number: 20170222128
    Abstract: The present disclosure provides a semiconductor structure, including an Nth metal layer, a bottom electrode over the Nth metal layer, a magnetic tunneling junction (MTJ) over the bottom electrode, a top electrode over the MTJ, and an (N+M)th metal layer over the Nth metal layer. N and M are positive integers. The (N+M)th metal layer surrounds a portion of a sidewall of the top electrode. A manufacturing method of forming the semiconductor structure is also provided.
    Type: Application
    Filed: May 10, 2016
    Publication date: August 3, 2017
    Inventors: FU-TING SUNG, CHUNG-CHIANG MIN, YUAN-TAI TSENG, CHERN-YOW HSU, SHIH-CHANG LIU
  • Publication number: 20170221797
    Abstract: A novel integrated circuit and method thereof are provided. The integrated circuit includes a plurality of first interconnect pads, a plurality of second interconnect pads, a first inter-level dielectric layer, a thin film resistor, and at least two end-caps. The end-caps, which are connectors for the thin film resistor, are positioned at the same level with the plurality of second interconnect pads. Therefore, an electrical connection between the end-caps and the plurality of second interconnect pads can be formed by directly connection of them. An integrated circuit with a thin film resistor can be made in a cost benefit way accordingly, so as to overcome disadvantages mentioned above.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 3, 2017
    Inventors: Yuan-Tai Tseng, Chia-Shiung Tsai, Chung-Yen Chou, Ming-Chyi Liu
  • Patent number: 9691883
    Abstract: A semiconductor structure of a split gate flash memory cell is provided. The semiconductor structure includes a semiconductor substrate having a source region and a drain region. Further, the semiconductor structure includes a floating gate, a word line, and an erase gate spaced over the semiconductor substrate between the source and drain regions with the floating gate arranged between the word line and the erase gate. The semiconductor structure further includes a first dielectric sidewall region disposed between the word line and the floating gate, as well as a second dielectric sidewall region disposed between the erase and floating gates. A thickness of the first dielectric sidewall region is greater than a thickness of the second dielectric sidewall region. A method of manufacturing the semiconductor structure and an integrated circuit including the semiconductor structure are also provided.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: June 27, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sheng-Chieh Chen, Yuan-Tai Tseng, Chang-Ming Wu, Shih-Chang Liu