Patents by Inventor Chang-Yun Chang

Chang-Yun 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: 9324866
    Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a semiconductor substrate; an isolation feature formed in the semiconductor substrate; a first active region and a second active region formed in the semiconductor substrate, wherein the first and second active regions extend in a first direction and are separated from each other by the isolation feature; and a dummy gate disposed on the isolation feature, wherein the dummy gate extends in the first direction to the first active region from one side and to the second active region from another side.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: April 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shao-Ming Yu, Chang-Yun Chang, Chih-Hao Chang, Hsin-Chih Chen, Kai-Tai Chang, Ming-Feng Shieh, Kuei-Liang Lu, Yi-Tang Lin
  • Patent number: 9245080
    Abstract: A method for designing a semiconductor ic chip includes dividing the chip into functional blocks such as a core portion and one or more other functional cells and applying design rules concerning the spatial arrangement of semiconductor fins to the core portion but not to the other functional cells. The design guidelines include the application of design rules to some but not all functional blocks of the chip, may be stored on a computer-readable medium and the design of the semiconductor ic chip and the generation of a photomask set for manufacturing the semiconductor ic chip may be carried out using a CAD or other automated design system. The semiconductor ic chip formed in accordance with this method includes semiconductor fins that are formed in both the core portion and the other functional cells but are only required to be tightly packed in the core portion.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: January 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shao-Ming Yu, Chang-Yun Chang
  • Publication number: 20150115373
    Abstract: A semiconductor structure includes an isolation feature formed in the semiconductor substrate and a first fin-type active region. The first fin-type active region extends in a first direction. A dummy gate stack is disposed on an end region of the first fin-type active region. The dummy gate stack may overlie an isolation structure. In an embodiment, any recess such as formed for a source/drain region in the first fin-type active region will be displaced from the isolation region by the distance the dummy gate stack overlaps the first fin-type active region.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Shao-Ming Yu, Chang-Yun Chang, Chih-Hao Chang, Hsin-Chih Chen, Kai-Tai Chang, Ming-Feng Shieh, Kuei-Liang Lu, Yi-Tang Lin
  • Publication number: 20150111355
    Abstract: An integrated circuit structure includes a semiconductor substrate including a first portion in a first device region, and a second portion in a second device region. A first semiconductor fin is over the semiconductor substrate and has a first fin height. A second semiconductor fin is over the semiconductor substrate and has a second fin height. The first fin height is greater than the second fin height.
    Type: Application
    Filed: January 7, 2015
    Publication date: April 23, 2015
    Inventors: Tsung-Lin Lee, Chih Chieh Yeh, Chang-Yun Chang, Feng Yuan
  • Patent number: 8941153
    Abstract: An integrated circuit structure includes a semiconductor substrate including a first portion in a first device region, and a second portion in a second device region. A first semiconductor fin is over the semiconductor substrate and has a first fin height. A second semiconductor fin is over the semiconductor substrate and has a second fin height. The first fin height is greater than the second fin height.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: January 27, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsung-Lin Lee, Chih Chieh Yeh, Chang-Yun Chang, Feng Yuan
  • Publication number: 20140331192
    Abstract: A method for designing a semiconductor ic chip includes dividing the chip into functional blocks such as a core portion and one or more other functional cells and applying design rules concerning the spatial arrangement of semiconductor fins to the core portion but not to the other functional cells. The design guidelines include the application of design rules to some but not all functional blocks of the chip, may be stored on a computer-readable medium and the design of the semiconductor ic chip and the generation of a photomask set for manufacturing the semiconductor ic chip may be carried out using a CAD or other automated design system. The semiconductor ic chip formed in accordance with this method includes semiconductor fins that are formed in both the core portion and the other functional cells but are only required to be tightly packed in the core portion.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Inventors: Shao-Ming YU, Chang-Yun CHANG
  • Patent number: 8871597
    Abstract: A method of forming a semiconductor device includes providing a semiconductor substrate and forming a plurality of dummy gate structures in the substrate. The method further includes forming sidewall spacers on sidewalls of the dummy gate structures and forming a plurality of epitaxial growth regions between the dummy gate structures. After forming the plurality of epitaxial growth regions, one of the dummy gate structures is removed to form an isolation trench, which is filled with a dielectric layer to form an isolation feature. The remaining dummy gate structures are removed to form gate trenches, and gate structures are formed in the gate trenches.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 28, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Feng Shieh, Chang-Yun Chang, Hsin-Chih Chen
  • Patent number: 8865539
    Abstract: An integrated circuit comprises a substrate and a buried dielectric formed in the substrate. The buried dielectric has a first thickness in a first region, a second buried dielectric thickness in a second region, and a step between the first and second regions. A semiconductor layer overlies the buried dielectric.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hao-Yu Chen, Chang-Yun Chang, Di-Hong Lee, Fu-Liang Yang
  • Patent number: 8846465
    Abstract: A system and method for forming multi recessed shallow trench isolation structures on substrate of an integrated circuit is provided. An integrated circuit includes a substrate, at least two shallow trench isolation (STI) structures formed in the substrate, an oxide fill disposed in the at least two STI structures, and semiconductor devices disposed on the oxide fill in the at least two STI structures. A first STI structure is formed to a first depth and a second STI structure is formed to a second depth. The oxide fill fills the at least two STI structures, and the first depth and the second depth are based on semiconductor device characteristics of semiconductor devices disposed thereon.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 30, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsung-Lin Lee, Chang-Yun Chang
  • Patent number: 8847361
    Abstract: A system and method for a memory cell layout is disclosed. An embodiment comprises forming dummy layers and spacers along the sidewalls of the dummy layer. Once the spacers have been formed, the dummy layers may be removed and the spacers may be used as a mask. By using the spacers instead of a standard lithographic process, the inherent limitations of the lithographic process can be avoided and further scaling of FinFET devices can be achieved.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 30, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jhon-Jhy Liaw, Chang-Yun Chang
  • Patent number: 8847295
    Abstract: A structure and method of forming a semiconductor device with a fin is provided. In an embodiment a hard mask is utilized to pattern a gate electrode layer and is then removed. After the hard mask has been removed, the gate electrode layer may be separated into individual gate electrodes.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 30, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Feng Shieh, Chih-Hao Yu, Chang-Yun Chang
  • Patent number: 8846466
    Abstract: An integrated circuit structure includes a substrate having a first portion in a first device region and a second portion in a second device region; and two insulation regions in the first device region and over the substrate. The two insulation regions include a first dielectric material having a first k value. A semiconductor strip is between and adjoining the two insulation regions, with a top portion of the semiconductor strip forming a semiconductor fin over top surfaces of the two insulation regions. An additional insulation region is in the second device region and over the substrate. The additional insulation region includes a second dielectric material having a second k value greater than the first k value.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 30, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Feng Yuan, Tsung-Lin Lee, Hung-Ming Chen, Chang-Yun Chang
  • Publication number: 20140256107
    Abstract: A method of forming a semiconductor device includes providing a semiconductor substrate and forming a plurality of dummy gate structures in the substrate. The method further includes forming sidewall spacers on sidewalls of the dummy gate structures and forming a plurality of epitaxial growth regions between the dummy gate structures. After forming the plurality of epitaxial growth regions, one of the dummy gate structures is removed to form an isolation trench, which is filled with a dielectric layer to form an isolation feature. The remaining dummy gate structures are removed to form gate trenches, and gate structures are formed in the gate trenches.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ming-Feng Shieh, Chang-Yun Chang, Hsin-Chih Chen
  • Patent number: 8813014
    Abstract: A method for designing a semiconductor ic chip includes dividing the chip into functional blocks such as a core portion and one or more other functional cells and applying design rules concerning the spatial arrangement of semiconductor fins to the core portion but not to the other functional cells. The design guidelines include the application of design rules to some but not all functional blocks of the chip, may be stored on a computer-readable medium and the design of the semiconductor ic chip and the generation of a photomask set for manufacturing the semiconductor ic chip may be carried out using a CAD or other automated design system. The semiconductor ic chip formed in accordance with this method includes semiconductor fins that are formed in both the core portion and the other functional cells but are only required to be tightly packed in the core portion.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 19, 2014
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shao-Ming Yu, Chang-Yun Chang
  • Patent number: 8796156
    Abstract: A method of forming an integrated circuit structure includes providing a semiconductor substrate; providing a first lithography mask, a second lithography mask, and a third lithography mask; forming a first mask layer over the semiconductor substrate, wherein a pattern of the first mask layer is defined using the first lithography mask; performing a first etch to the semiconductor substrate to define an active region using the first mask layer; forming a second mask layer having a plurality of mask strips over the semiconductor substrate and over the active region; forming a third mask layer over the second mask layer, wherein a middle portion of the plurality of mask strips is exposed through an opening in the third mask layer, and end portions of the plurality of mask strips are covered by the third mask layer; and performing a second etch to the semiconductor substrate through the opening.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: August 5, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Feng Shieh, Tsung-Lin Lee, Chang-Yun Chang
  • Patent number: 8748993
    Abstract: An integrated circuit structure includes a semiconductor substrate, and a FinFET over the semiconductor substrate. The FinFET includes a semiconductor fin; a gate dielectric on a top surface and sidewalls of the semiconductor fin; a gate electrode on the gate dielectric; and a source/drain region at an end of the semiconductor fin. A first pair of shallow trench isolation (STI) regions includes portions directly underlying portions of the source/drain regions, wherein the first pair of STI regions is separated by, and adjoining a semiconductor strip. The first pair of STI regions further has first top surfaces. A second pair of STI regions comprises portions directly underlying the gate electrode, wherein the second pair of STI regions is separated from each other by, and adjoining, the semiconductor strip. The second pair of STI regions has second top surfaces higher than the first top surfaces.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: June 10, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsung-Lin Lee, Chih Chieh Yeh, Chang-Yun Chang, Feng Yuan
  • Patent number: 8735991
    Abstract: A semiconductor device with an isolation feature is disclosed. The semiconductor device includes a plurality of gate structures disposed on a semiconductor substrate, a plurality of gate sidewall spacers of a dielectric material formed on respective sidewalls of the plurality of gate structures, an interlayer dielectric (ILD) disposed on the semiconductor substrate and the gate structures, an isolation feature embedded in the semiconductor substrate and extended to the ILD and a sidewall spacer of the dielectric material disposed on sidewalls of extended portion of the isolation feature.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: May 27, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Feng Shieh, Chang-Yun Chang, Hsin-Chih Chen
  • Patent number: 8723271
    Abstract: An integrated circuit structure includes a substrate; two insulation regions over the substrate, with one of the two insulation regions including a void therein; and a first semiconductor strip between and adjoining the two insulation regions. The first semiconductor strip includes a top portion forming a fin over top surfaces of the two insulation regions.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 13, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Feng Yuan, Tsung-Lin Lee, Hung-Ming Chen, Chang-Yun Chang
  • Patent number: RE45180
    Abstract: A method for forming a semiconductor device and a device made using the method are provided. In one example, the method includes forming a hard mask layer on a semiconductor substrate and patterning the hard mask layer to form multiple openings. The substrate is etched through the openings to form forming a plurality of trenches separating multiple semiconductor mesas. The trenches are partially filled with a dielectric material. The hard mask layer is removed and multiple-gate features are formed, with each multiple-gate feature being in contact with a top surface and sidewalls of at least one of the semiconductor mesas.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: October 7, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Wei Chen, Tang-Xuan Zhong, Sheng-Da Liu, Chang-Yun Chang, Ping-Kun Wu, Chao-Hsiung Wang, Fu-Liang Yang
  • Patent number: RE45944
    Abstract: A method for forming a semiconductor device and a device made using the method are provided. In one example, the method includes forming a hard mask layer on a semiconductor substrate and patterning the hard mask layer to form multiple openings. The substrate is etched through the openings to form forming a plurality of trenches separating multiple semiconductor mesas. The trenches are partially filled with a dielectric material. The hard mask layer is removed and multiple-gate features are formed, with each multiple-gate feature being in contact with a top surface and sidewalls of at least one of the semiconductor mesas.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: March 22, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Wei Chen, Tang-Xuang Zhong, Sheng-Da Liu, Chang-Yun Chang, Ping-Kun Wu, Chao-Hsiung Wang, Fu-Liang Yang