Patents by Inventor Chih-Hsiang Yao

Chih-Hsiang Yao 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: 20130207273
    Abstract: A device includes a dielectric layer, a metal line in the dielectric layer, and a via underlying and connected to the metal line. Two dummy metal patterns are adjacent to the metal line, and are aligned to a straight line. A dummy metal line interconnects the two dummy metal patterns. A width of the dummy metal line is smaller than lengths and widths of the two dummy metal patterns, wherein the width is measure in a direction perpendicular to the straight line. Bottoms of the two dummy metal patterns and the dummy metal line are substantially level with a bottom surface of the metal line.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsiang Yao, Ying-Wen Huang
  • Patent number: 8450200
    Abstract: A method for an integrated circuit structure includes providing a semiconductor substrate; forming a metallization layer over the semiconductor substrate; forming a first dielectric layer between the semiconductor substrate and the metallization layer; forming a second dielectric layer between the semiconductor substrate and the metallization layer, wherein the second dielectric layer is over the first dielectric layer; and forming a contact plug with an upper portion substantially in the second dielectric layer and a lower portion substantially in the first dielectric layer. The contact plug is electrically connected to a metal line in the metallization layer. The contact plug is discontinuous at an interface between the upper portion and the lower portion.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: May 28, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hua Yu, Chen-Nan Yeh, Chih-Hsiang Yao, Wen-Kai Wan, Jye-Yen Cheng
  • Patent number: 8435802
    Abstract: A semiconductor device is prepared by an annealing process to interconnect at least two components of the device by a conductor line surrounded by an insulator material. The annealing process results in formation of residual stresses within the conductor line and the insulator material. A notch is designed in the layout on a selective portion of the mask for patterning conductor line. The existence of a shape of notch on the selective portion generates extra stress components within the conductor line than if without the existence of the notch. The position of the notch is selected so that the extra stress components substantially counteract the residual stresses, thereby causing a net reduction in the residual stresses. The reduction in the residual stresses results in a corresponding mechanical stress migration and therefore improvement in the reliability of the device.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: May 7, 2013
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Min-Hwa Chi, Tai-Chun Huang, Chih-Hsiang Yao
  • Publication number: 20110241207
    Abstract: Semiconductor integrated circuit line structures for improving a process window in the vicinity of dense-to-isolated pattern transition areas and a technique to implement the line structures in the layout process are described in this disclosure. The disclosed structure includes a semiconductor substrate, and a material layer above the substrate. The material layer has a closely spaced dense line structure, an isolated line structure next to the dense line structure, and a dummy line shoulder structure formed in the vicinity of the dense line and the isolated line structures. One end of the dummy line shoulder structure connects to the isolated line structure and another end extends away from the isolated line structure in an orientation substantially perpendicular to the isolated line structure.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng Cheng Kuo, Luke Lo, Minghsing Tsai, Ken-Yu Chang, Jye-Yen Cheng, Jeng-Shiun Ho, Hua-Tai Lin, Chih-Hsiang Yao
  • Publication number: 20110092019
    Abstract: A method for an integrated circuit structure includes providing a semiconductor substrate; forming a metallization layer over the semiconductor substrate; forming a first dielectric layer between the semiconductor substrate and the metallization layer; forming a second dielectric layer between the semiconductor substrate and the metallization layer, wherein the second dielectric layer is over the first dielectric layer; and forming a contact plug with an upper portion substantially in the second dielectric layer and a lower portion substantially in the first dielectric layer. The contact plug is electrically connected to a metal line in the metallization layer. The contact plug is discontinuous at an interface between the upper portion and the lower portion.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 21, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hua Yu, Chen-Nan Yeh, Chih-Hsiang Yao, Wen-Kai Wan, Jye-Yen Cheng
  • Patent number: 7880303
    Abstract: An integrated circuit structure includes a semiconductor substrate; a metallization layer over the semiconductor substrate; a first dielectric layer between the semiconductor substrate and the metallization layer; a second dielectric layer between the semiconductor substrate and the metallization layer, wherein the second dielectric layer is over the first dielectric layer; and a contact plug with an upper portion substantially in the second dielectric layer and a lower portion substantially in the first dielectric layer. The contact plug is electrically connected to a metal line in the metallization layer. The contact plug is discontinuous at an interface between the upper portion and the lower portion.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: February 1, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hua Yu, Chen-Nan Yeh, Chih-Hsiang Yao, Wen-Kai Wan, Jye-Yen Cheng
  • Patent number: 7791070
    Abstract: An outer border, and a seal ring substantially co-extensive with and spaced from the outer border is disclosed. A plurality of fault detection chains extend from adjacent the outer border to within the seal ring. At least a first one of the plurality of fault detection chains includes a contact pad, a first metal feature coupled to the contact pad by a first via in a passivation layer, a second metal feature coupled to the first metal feature by a second via, and a substrate contact coupled to the second metal feature by a third via.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: September 7, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Kuan-Shou Chi, Wen-Kai Wan
  • Patent number: 7777338
    Abstract: A seal ring structure is disclosed for protecting a core circuit region of an integrated circuit chip. The seal ring structure includes a metallization layer, having a bridge sublevel and a plug sublevel. An upper-level bridge is formed on the bridge sublevel at a predetermined location between a peripheral edge of the integrated circuit chip and the core circuit region. A lower-level bridge is formed on the plug sublevel in substantial alignment with the upper-level bridge, wherein the lower-level bridge has a width substantially the same as that of the upper-level bridge.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: August 17, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Hsiang Yao, Tai-Chun Huang, Kuan-Shou Chi, Chih-Cherng Jeng, Ming-Shuoh Liang, Wen-Kai Wan, Chin-Chiu Hsia
  • Patent number: 7772701
    Abstract: An improved integrated circuit structure and method of making the same is provided. The integrated circuit structure comprises a substrate, the substrate having a top surface and a bottom surface. The top surface has a circuit device formed thereon. The structure includes a plurality of metallization layers, a bonding structure formed over the bottom surface and a conductive interconnect structure formed through said substrate.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: August 10, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Hsiang Yao, Tai-Chun Huang, Mong-Song Liang
  • Patent number: 7741714
    Abstract: A bond pad structure for an integrated circuit chip has a stress-buffering layer between a top interconnection level metal layer and a bond pad layer to prevent damages to the bond pad structure from wafer probing and packaging impacts. The stress-buffering layer is a conductive material having a property selected from the group consisting of Young's modulus, hardness, strength and toughness greater than the top interconnection level metal layer or the bond pad layer. For improving adhesion and bonding strength, the lower portion of the stress-buffering layer may be modified as various forms of a ring, a mesh or interlocking-grid structures embedded in a passivation layer, alternatively, the stress-buffering layer may has openings filled with the bond pad layer.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: June 22, 2010
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Wen-Kai Wan
  • Patent number: 7592710
    Abstract: A bond pad structure of an integrated circuit is provided. The bond pad structure includes a conductive bond pad, a first dielectric layer underlying the bond pad, and an Mtop plate located in the first dielectric layer and underlying the bond pad. The Mtop plate is a solid conductive plate and is electrically coupled to the bond pad. The bond pad structure further includes a first passivation layer over the first dielectric layer wherein the first passivation layer has at least a portion under a middle portion of the bond pad. At least part of an active circuit is located under the bond pad.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: September 22, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chin-Chiu Hsia, Chih-Hsiang Yao, Tai-Chun Huang, Chih-Tang Peng
  • Patent number: 7470994
    Abstract: A semiconductor device includes a substrate with a dielectric layer thereon, a stack of interconnection structures in the dielectric layer, each interconnection structure including a conductive layer and a layer of plugs connecting the conductive layer, at least a layer of plugs including a crack stopper, and a bonding pad structure with a predetermined bump area thereon, overlying the stack of interconnection structures, wherein the crack stopper is formed along an edge of a projection area corresponding to the predetermined bump area.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: December 30, 2008
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Chin-Chiu Hsia
  • Publication number: 20080191352
    Abstract: An integrated circuit structure includes a semiconductor substrate; a metallization layer over the semiconductor substrate; a first dielectric layer between the semiconductor substrate and the metallization layer; a second dielectric layer between the semiconductor substrate and the metallization layer, wherein the second dielectric layer is over the first dielectric layer; and a contact plug with an upper portion substantially in the second dielectric layer and a lower portion substantially in the first dielectric layer. The contact plug is electrically connected to a metal line in the metallization layer. The contact plug is discontinuous at an interface between the upper portion and the lower portion.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 14, 2008
    Inventors: Chen-Hua Yu, Chen-Nan Yeh, Chih-Hsiang Yao, Wen-Kai Wan, Jye-Yen Cheng
  • Publication number: 20080003820
    Abstract: A semiconductor device, comprising: a substrate with a dielectric layer thereon; a stack of interconnection structures in the dielectric layer, each interconnection structure comprising a conductive layer and a layer of plugs connecting the conductive layer, at least a layer of plugs comprising a crack stopper; and a bonding pad structure with a predetermined bump area thereon, overlying the stack of interconnection structures; wherein the crack stopper is formed along an edge of a projection area corresponding to the predetermined bump area.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Chin-Chiu Hsia
  • Publication number: 20070284747
    Abstract: An improved integrated circuit structure and method of making the same is provided. The integrated circuit structure comprises a substrate, the substrate having a top surface and a bottom surface. The top surface has a circuit device formed thereon. The structure includes a plurality of metallization layers, a bonding structure formed over the bottom surface and a conductive interconnect structure formed through said substrate.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 13, 2007
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Hsiang Yao, Tai-Chun Huang, Mong-Song Liang
  • Publication number: 20070269907
    Abstract: A semiconductor device is prepared by an annealing process to interconnect at least two components of the device by a conductor line surrounded by an insulator material. The annealing process results in formation of residual stresses within the conductor line and the insulator material. A notch is designed in the layout on a selective portion of the mask for patterning conductor line. The existence of a shape of notch on the selective portion generates extra stress components within the conductor line than if without the existence of the notch. The position of the notch is selected so that the extra stress components substantially counteract the residual stresses, thereby causing a net reduction in the residual stresses. The reduction in the residual stresses results in a corresponding mechanical stress migration and therefore improvement in the reliability of the device.
    Type: Application
    Filed: May 22, 2006
    Publication date: November 22, 2007
    Inventors: Min-Hwa Chi, Tai-Chun Huang, Chih-Hsiang Yao
  • Publication number: 20070205508
    Abstract: A bond pad structure of an integrated circuit is provided. The bond pad structure includes a conductive bond pad, a first dielectric layer underlying the bond pad, and an Mtop plate located in the first dielectric layer and underlying the bond pad. The Mtop plate is a solid conductive plate and is electrically coupled to the bond pad. The bond pad structure further includes a first passivation layer over the first dielectric layer wherein the first passivation layer has at least a portion under a middle portion of the bond pad. At least part of an active circuit is located under the bond pad.
    Type: Application
    Filed: April 21, 2006
    Publication date: September 6, 2007
    Inventors: Chin-Chiu Hsia, Chih-Hsiang Yao, Tai-Chun Huang, Chih-Tang Peng
  • Patent number: 7265436
    Abstract: A method of forming an improved seal ring structure is described. A continuous metal seal ring is formed along a perimeter of a die wherein the metal seal ring is parallel to the edges of the die and sloped at the corner of the die so as not to have a sharp corner and wherein the metal seal ring has a first width at the corners and a second width along the edges wherein the first width is wider than the second width.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: September 4, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Kuan-Shou Chi
  • Patent number: 7253531
    Abstract: The invention provides a bonding pad structure. At least one lower circuit layer is disposed overlying the substrate, wherein the lower circuit layer is a layout of circuit under pad. A top circuit layer is disposed overlying the lower circuit layer, wherein the top circuit layer comprises a top interconnect dielectric layer and a top interconnect pattern in the top interconnect dielectric layer. A top connecting layer is disposed overlying the top circuit layer, electrically connecting the top interconnect pattern. A top pad layer is disposed overlying the top connecting layer. A bonding ball is disposed overlying the top pad layer, wherein sides of the top interconnect pattern do not overlap a region extending inwardly and outwardly from a boundary of the bonding ball within distance of about 2.5?m.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: August 7, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Kuan-Shou Chi, Ming-Ta Lei, Chin-Chiu Hsia
  • Patent number: 7244673
    Abstract: A structure for a multi-level interconnect inter-level dielectric layer (ILD), a method of manufacturing thereof, and a semiconductor device including the ILD layer. The ILD layer includes a first low-dielectric constant material sub-layer, and a second low-dielectric constant material sub-layer disposed over the first low-dielectric constant material sub-layer. The second low-dielectric constant material sub-layer has at least one different material property than the first low-dielectric constant material sub-layer. A third low-dielectric constant material sub-layer is disposed over the second low-dielectric constant material sub-layer, the third low-dielectric constant material sub-layer having at least one different material property than the second low-dielectric constant material sub-layer.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: July 17, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tai-Chun Huang, Chih-Hsiang Yao, Yih-Hsiung Lin, Tien-I Bao, Bi-Trong Chen, Yung-Cheng Lu