Patents by Inventor Chun-Wei Yu

Chun-Wei Yu 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: 9960084
    Abstract: The present invention provides a method for forming a semiconductor device, comprising the following steps: firstly, a substrate is provided, having a NMOS region and a PMOS region defined thereon, next, a gate structure is formed on the substrate within the NMOS region, and a disposal spacer is formed on two sides of the gate structure, afterwards, a mask layer is formed on the PMOS region to expose the NMOS region, next, a recess is formed on two sides of the gate structure spaced from the gate structure by the disposal spacer within the NMOS region, the disposal spacer is then removed after the recess is formed, and an epitaxial layer is formed into the recess.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: May 1, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Yi-Liang Ye, Kuang-Hsiu Chen, Chun-Wei Yu, Chueh-Yang Liu, Wen-Jiun Shen, Yu-Ren Wang
  • Publication number: 20180096995
    Abstract: A method of forming a gate structure on a fin structure includes the steps of providing a fin structure covered by a first silicon oxide layer, a silicon nitride layer, a gate material and a cap material in sequence, wherein the silicon nitride layer contacts the first silicon oxide layer. Later, the cap material is patterned to form a first cap layer and the gate material is patterned to form a first gate electrode by taking the silicon nitride layer as an etching stop layer. Then, the silicon nitride layer not covered by the first gate electrode is removed to expose part of the first silicon oxide layer. Finally, a first dielectric layer is formed to conformally cover the first silicon oxide layer, the first gate electrode and the first cap layer.
    Type: Application
    Filed: October 4, 2016
    Publication date: April 5, 2018
    Inventors: Yi-Liang Ye, Kuang-Hsiu Chen, Chun-Wei Yu, Chueh-Yang Liu, Yu-Ren Wang
  • Patent number: 9871113
    Abstract: A semiconductor process including the following steps is provided. An epitaxial layer is formed on a substrate. An oxide layer is formed on the epitaxial layer, wherein the oxide layer includes a chemical oxide layer, a high-temperature oxide (HTO) layer or a surface modification oxide layer. An ion implant process is performed to the epitaxial layer to form a doped region in the epitaxial layer. The oxide layer is removed by using a diluted hydrofluoric acid (DHF) solution after performing the ion implant process, wherein a volume ratio of water to a hydrofluoric acid (HF) in the DHF solution is 200:1 to 1000:1.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: January 16, 2018
    Assignee: United Microelectronics Corp.
    Inventors: Chun-Wei Yu, Kuang-Hsiu Chen, Chueh-Yang Liu, Yu-Ren Wang
  • Publication number: 20170330742
    Abstract: A semiconductor device and a method of forming the same, the semiconductor device includes fin shaped structures and a recessed insulating layer. The fin shaped structures are disposed on a substrate. The recessed insulating layer covers a bottom portion of each of the fin shaped structures to expose a top portion of each of the fin shaped structures. The recessed insulating layer has a curve surface and a wicking structure is defined between a peak and a bottom of the curve surface. The wicking structure is disposed between the fin shaped structures and has a height being about 1/12 to 1/10 of a height of the top portion of the fin shaped structures.
    Type: Application
    Filed: June 29, 2017
    Publication date: November 16, 2017
    Inventors: Hsu Ting, Chun-Wei Yu, Chueh-Yang Liu, Yu-Ren Wang
  • Publication number: 20170309485
    Abstract: An apparatus for semiconductor wafer treatment includes a wafer holding unit configured to receive a single wafer, at least a solution supply unit configured to apply a solution onto the wafer and an irradiation unit configured to emit irradiation to the wafer. The irradiation unit further includes at least a plurality of first light sources configured to emit irradiation in FIR range and a plurality of second light sources configured to emit irradiation in UV range.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 26, 2017
    Inventors: Yu-Ying Lin, Chueh-Yang Liu, Yu-Ren Wang, Chun-Wei Yu, Kuang-Hsiu Chen, Yi-Liang Ye, Hsu Ting, Neng-Hui Yang
  • Patent number: 9793105
    Abstract: The invention provides a fabricating method of a FinFET, comprising: providing a substrate having fin structures; depositing an dielectric layer on the substrate filling between the fin structures; forming recesses to reveal a portion of the fin structure by removing a portion of the dielectric layer; performing a cleaning process on using a cleaning solution selected from one of a first solution, consisting of dHF and H2O2, and a second solution, consisting of dHF and DIO3; forming a gate structure across on the fin structures; and forming a source/drain structure on the substrate at two lateral sides of the gate structure. The present invention also provides a fabricating method of a FinFET having an improved cleaning step using a cleaning solution having one of a third solution, consisting of dHF and DIO3, and a fourth solution, consisting of NH4OH and DIO3 before formation of the source/drain structure.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 17, 2017
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Chun-Wei Yu, Hsu Ting, Chueh-Yang Liu, Yu-Ren Wang, Kuang-Hsiu Chen, Yi-Liang Ye
  • Publication number: 20170263730
    Abstract: A semiconductor process including the following steps is provided. An epitaxial layer is formed on a substrate. An oxide layer is formed on the epitaxial layer, wherein the oxide layer includes a chemical oxide layer, a high-temperature oxide (HTO) layer or a surface modification oxide layer. An ion implant process is performed to the epitaxial layer to form a doped region in the epitaxial layer. The oxide layer is removed by using a diluted hydrofluoric acid (DHF) solution after performing the ion implant process, wherein a volume ratio of water to a hydrofluoric acid (HF) in the DHF solution is 200:1 to 1000:1.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 14, 2017
    Inventors: Chun-Wei Yu, Kuang-Hsiu Chen, Chueh-Yang Liu, Yu-Ren Wang
  • Publication number: 20170243749
    Abstract: A method of forming an oxide layer is provided in the present invention. The method includes the following steps. A first oxide layer is formed on a semiconductor substrate, and a quality enhancement process is then performed to etch the first oxide layer and densify the first oxide layer at the same time for forming a second oxide layer. The first oxide layer is etched and densified at the same time by a mixture of dilute hydrofluoric acid (DHF) and hydrogen peroxide (H2O2) in the quality enhancement process. The thickness of the second oxide layer may be reduced and the quality of the second oxide layer may be enhanced by the quality enhancement process at the same time.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 24, 2017
    Inventors: Chueh-Yang Liu, Chun-Wei Yu, Yu-Ying Lin, Yu-Ren Wang
  • Patent number: 9741572
    Abstract: A method of forming an oxide layer is provided in the present invention. The method includes the following steps. A first oxide layer is formed on a semiconductor substrate, and a quality enhancement process is then performed to etch the first oxide layer and densify the first oxide layer at the same time for forming a second oxide layer. The first oxide layer is etched and densified at the same time by a mixture of dilute hydrofluoric acid (DHF) and hydrogen peroxide (H2O2) in the quality enhancement process. The thickness of the second oxide layer may be reduced and the quality of the second oxide layer may be enhanced by the quality enhancement process at the same time.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 22, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chueh-Yang Liu, Chun-Wei Yu, Yu-Ying Lin, Yu-Ren Wang
  • Patent number: 9728397
    Abstract: A semiconductor device and a method of forming the same, the semiconductor device includes fin shaped structures and a recessed insulating layer. The fin shaped structures are disposed on a substrate. The recessed insulating layer covers a bottom portion of each of the fin shaped structures to expose a top portion of each of the fin shaped structures. The recessed insulating layer has a curve surface and a wicking structure is defined between a peak and a bottom of the curve surface. The wicking structure is disposed between the fin shaped structures and has a height being about 1/12 to 1/10 of a height of the top portion of the fin shaped structures.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 8, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hsu Ting, Chun-Wei Yu, Chueh-Yang Liu, Yu-Ren Wang
  • Publication number: 20170200824
    Abstract: A semiconductor device includes: a substrate; a gate structure on the substrate; and an epitaxial layer in the substrate adjacent to the gate structure, in which the epitaxial layer includes a planar surface and protrusions adjacent to two sides of the planar surface. Preferably, a contact plug is embedded in part of the epitaxial layer, and a silicide is disposed under the contact plug, in which a bottom surface of the silicide includes an arc.
    Type: Application
    Filed: March 26, 2017
    Publication date: July 13, 2017
    Inventors: Chun-Wei Yu, Hsu Ting, Chueh-Yang Liu, Yu-Ren Wang, Kuang-Hsiu Chen
  • Patent number: 9646889
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a first gate structure on the substrate and a first spacer adjacent to the first gate structure; forming a first epitaxial layer in the substrate adjacent to the first gate structure; forming a first hard mask layer on the first gate structure; removing part of the first hard mask layer to form a protective layer on the first epitaxial layer; and removing the remaining first hard mask layer.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 9, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Wei Yu, Hsu Ting, Chueh-Yang Liu, Yu-Ren Wang, Kuang-Hsiu Chen
  • Patent number: 9514993
    Abstract: A method for manufacturing semiconductor devices includes following steps. A substrate including a first gate structure and a second gate structure formed thereon is provided. The first gate structure and the second gate structure are complementary to each other. Next, a first mask layer covering the second gate structure is formed and followed by forming first recesses in the substrate at two respective sides of the first transistor. Then, forming the first recesses, a first epitaxial layer is formed in each first recess. After forming the first epitaxial layers, a local protecting cap is formed on the first epitaxial layers and followed by removing the first mask layer.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: December 6, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Wei Yu, Ted Ming-Lang Guo, Hsu Ting, Yu-Ren Wang
  • Publication number: 20160284601
    Abstract: A method for manufacturing semiconductor devices includes following steps. A substrate including a first gate structure and a second gate structure formed thereon is provided. The first gate structure and the second gate structure are complementary to each other. Next, a first mask layer covering the second gate structure is formed and followed by forming first recesses in the substrate at two respective sides of the first transistor. Then, forming the first recesses, a first epitaxial layer is formed in each first recess. After forming the first epitaxial layers, a local protecting cap is formed on the first epitaxial layers and followed by removing the first mask layer.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 29, 2016
    Inventors: Chun-Wei Yu, Ted Ming-Lang Guo, Hsu Ting, Yu-Ren Wang
  • Publication number: 20080057640
    Abstract: A method for fabricating a first electrode of a capacitor is described. A substrate comprising an insulating layer formed thereon is provided. The insulating layer has an opening. A silicon layer is formed on the insulating layer. The silicon layer is transformed to a hemispherical grain layer. An etching process is performed to remove a portion of the hemispherical grain layer outside the opening.
    Type: Application
    Filed: November 13, 2006
    Publication date: March 6, 2008
    Applicant: PROMOS TECHNOLOGIES INC.
    Inventors: LI-CHENG TENG, CHUN-WEI YU, CHUN-CHONG FU, YUAN-MING CHANG
  • Publication number: 20060146262
    Abstract: A method to improve the effect of the overflow of the anisotropic conductive film has the steps of providing guide blocks on electrodes of a panel or on a flexible printing circuit (FPC) or on both of them, and then processing a bonding process of the flexible printing circuit (FPC) to melt a conductive film between the flexible printing circuit (FPC) and the panel. The melted conductive film is restricted by the guide blocks to flow to the electrodes and to cover them.
    Type: Application
    Filed: January 3, 2005
    Publication date: July 6, 2006
    Inventors: Chun-Wei Yu, Chi-hsun Li, Kuo-Chuan Huang