Patents by Inventor Yuan Liao

Yuan Liao 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: 9673100
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a plurality of gate structures on the substrate; forming a first stop layer on the gate structures; forming a second stop layer on the first stop layer; forming a first dielectric layer on the second stop layer; forming a plurality of first openings in the first dielectric layer to expose the second stop layer; forming a plurality of second openings in the first dielectric layer and the second stop layer to expose the first stop layer; and removing part of the second stop layer and part of the first stop layer to expose the gate structures.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: June 6, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Ching-Wen Hung, Chih-Sen Huang, Yi-Wei Chen, Chien-Ting Lin, Shih-Fang Tzou, Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Chieh-Te Chen
  • Patent number: 9660019
    Abstract: A concentric capacitor structure generally comprising concentric capacitors is disclosed. Each concentric capacitor comprises a first plurality of perimeter plates formed on a first layer of a substrate and a second plurality of perimeter plates formed on a second layer of the substrate. The first plurality of perimeter plates extend in a first direction and the second plurality of perimeter plates extend in a second direction different than the first direction. A first set of the first plurality of perimeter plates is electrically coupled to a first set of the second plurality of perimeter plates and a second set of the first plurality of perimeter plates is electrically coupled to a second set of the second plurality of perimeter plates. A plurality of capacitive cross-plates are formed in the first layer such that each cross-plate overlaps least two of the second plurality of perimeter plates.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 23, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ying-Ta Lu, Chi-Hsien Lin, Hsien-Yuan Liao, Ho-Hsiang Chen, Tzu-Jin Yeh
  • Publication number: 20170133274
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate; forming a first gate structure and a second gate structure on the substrate; forming a contact etch stop layer (CESL) on the first gate structure, the second gate structure, and the substrate; removing part of the CESL between the first gate structure and the second gate structure; and forming an interlayer dielectric (ILD) layer on the CESL.
    Type: Application
    Filed: December 8, 2015
    Publication date: May 11, 2017
    Inventors: Chia-Lin Lu, Shih-Fang Tzou, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Wei-Hao Huang
  • Publication number: 20170125291
    Abstract: A method for fabricating semiconductor device includes the steps of: providing a substrate having a gate structure thereon and an interlayer dielectric (ILD) layer surrounding the gate structure; forming a sacrificial layer on the gate structure; forming a first contact plug in the sacrificial layer and the ILD layer; removing the sacrificial layer; and forming a first dielectric layer on the gate structure and the first contact plug.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Chieh-Te Chen
  • Patent number: 9640484
    Abstract: A semiconductor device and a method of manufacturing the same, the semiconductor device includes a fin shaped structure, a gate structure, an epitaxial layer, a germanium layer, an interlayer dielectric layer and a first plug. The fin shaped structure is disposed on a substrate. The gate structure is formed across the fin shaped structure. The epitaxial layer is disposed in the fin shaped structure adjacent to the gate structure. The germanium layer is disposed on the epitaxial layer. The interlayer dielectric layer covers the substrate and the fin shaped structure. The first plug is disposed in the interlayer dielectric layer to contact the germanium layer.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 2, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Hsien Lin, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang
  • Publication number: 20170117380
    Abstract: A semiconductor device with reinforced gate spacers and a method of fabricating the same. The semiconductor device includes low-k dielectric gate spacers adjacent to a gate structure. A high-k dielectric material is disposed over an upper surface of the low-k dielectric gate spacers to prevent unnecessary contact between the gate structure and a self-aligned contact structure. The high-k dielectric material may be disposed, if desired, over an upper surface of the gate structure to provide additional isolation of the gate structure from the self-aligned contact structure.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Inventors: Chia-Lin Lu, Yu-Cheng Tung, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang
  • Publication number: 20170084722
    Abstract: A semiconductor device and a method of forming the same, the semiconductor device includes a fin shaped structure, agate structure, an epitaxial layer, an interlayer dielectric layer, a first plug and a protection layer. The fin shaped structure is disposed on a substrate, and the gate structure is across the fin shaped structure. The epitaxial layer is disposed in the fin shaped structure, adjacent to the gate structure. The interlayer dielectric layer covers the substrate and the fin shaped structure. The first plug is formed in the interlayer dielectric layer, wherein the first plug is electrically connected to the epitaxial layer. The protection layer is disposed between the first plug and the gate structure.
    Type: Application
    Filed: October 21, 2015
    Publication date: March 23, 2017
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Wei-Hao Huang
  • Publication number: 20170077031
    Abstract: A semiconductor device and a method of manufacturing the same, the semiconductor device includes a fin shaped structure, a gate structure, an epitaxial layer, a germanium layer, an interlayer dielectric layer and a first plug. The fin shaped structure is disposed on a substrate. The gate structure is formed across the fin shaped structure. The epitaxial layer is disposed in the fin shaped structure adjacent to the gate structure. The germanium layer is disposed on the epitaxial layer. The interlayer dielectric layer covers the substrate and the fin shaped structure. The first plug is disposed in the interlayer dielectric layer to contact the germanium layer.
    Type: Application
    Filed: October 13, 2015
    Publication date: March 16, 2017
    Inventors: Chia-Lin Lu, Chun-Hsien Lin, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang
  • Publication number: 20170069528
    Abstract: The present invention provides a method for forming an opening, including: first, a hard mask material layer is formed on a target layer, next, a tri-layer hard mask is formed on the hard mask material layer, where the tri-layer hard mask includes an bottom organic layer (ODL), a middle silicon-containing hard mask bottom anti-reflection coating (SHB) layer and a top photoresist layer, and an etching process is then performed, to remove parts of the tri-layer hard mask, parts of the hard mask material layer and parts of the target layer in sequence, so as to form at least one opening in the target layer, where during the step for removing parts of the hard mask material layer, a lateral etching rate of the hard mask material layer is smaller than a lateral etching rate of the ODL.
    Type: Application
    Filed: September 4, 2015
    Publication date: March 9, 2017
    Inventors: Wei-Hao Huang, Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Chieh-Te Chen, Shang-Yuan Tsai
  • Patent number: 9583388
    Abstract: A method for fabricating semiconductor device is disclosed. The method includes the steps of: providing a substrate having a gate structure thereon and an interlayer dielectric (ILD) layer surrounding the gate structure; forming a sacrificial layer on the gate structure; forming a first contact plug in the sacrificial layer and the ILD layer; removing the sacrificial layer; and forming a first dielectric layer on the gate structure and the first contact plug.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: February 28, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Chieh-Te Chen
  • Patent number: 9543211
    Abstract: A manufacturing method of a semiconductor structure includes the following steps. Gate structures are formed on a semiconductor substrate. A source/drain contact is formed between two adjacent gate structures. The source/drain contact is recessed by a recessing process. A top surface of the source/drain contact is lower than a top surface of the gate structure after the recessing process. A stop layer is formed on the gate structures and the source/drain contact after the recessing process. A top surface of the stop layer on the source/drain contact is lower than the top surface of the gate structure. A semiconductor structure includes the semiconductor substrate, the gate structures, a gate contact structure, and the source/drain contact. The source/drain contact is disposed between two adjacent gate structures, and the top surface of the source/drain contact is lower than the top surface of the gate structure.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: January 10, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Yu-Cheng Tung, Kun-Yuan Liao, Feng-Yi Chang, En-Chiuan Liou, Wei-Hao Huang, Chih-Sen Huang, Ching-Wen Hung
  • Patent number: 9543203
    Abstract: A method of fabricating a semiconductor structure includes the following steps: forming a first interlayer dielectric on a substrate; forming a gate electrode on the substrate so that the periphery of the gate electrode is surrounded by the first interlayer dielectric; forming a patterned mask layer comprising at least a layer of organic material on the gate electrode; forming a conformal dielectric layer to conformally cover the layer of organic material; and forming a second interlayer dielectric to cover the conformal dielectric layer.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: January 10, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, En-Chiuan Liou, Chia-Hsun Tseng, Wei-Hao Huang, Yu-Ting Hung
  • Publication number: 20170004997
    Abstract: A method of fabricating a semiconductor structure includes the following steps: forming a first interlayer dielectric on a substrate; forming a gate electrode on the substrate so that the periphery of the gate electrode is surrounded by the first interlayer dielectric; forming a patterned mask layer comprising at least a layer of organic material on the gate electrode; forming a conformal dielectric layer to conformally cover the layer of organic material; and forming a second interlayer dielectric to cover the conformal dielectric layer.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 5, 2017
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, En-Chiuan Liou, Chia-Hsun Tseng, Wei-Hao Huang, Yu-Ting Hung
  • Publication number: 20160380077
    Abstract: A method for manufacturing a semiconductor device having metal gates includes following steps. A substrate including a first transistor and a second transistor formed thereon is provided. The first transistor includes a first gate trench and the second transistor includes a second gate trench. A patterned first work function metal layer is formed in the first gate trench and followed by forming a second sacrificial masking layer respectively in the first gate trench and the second gate trench. An etching process is then performed to form a U-shaped first work function metal layer in the first gate trench. Subsequently, a two-step etching process including a strip step and a wet etching step is performed to remove the second sacrificial masking layer and portions of the U-shaped first work function metal layer to form a taper top on the U-shaped first work function metal layer in the first gate trench.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang
  • Patent number: 9530851
    Abstract: The present invention provides a semiconductor device, including at least two gate structures, and each gate structure includes a gate, a spacer and a source/drain region, the source/drain region disposed on two sides of the gate. A first dielectric layer is disposed on the substrate and between two gate structures, where the first dielectric layer has a concave surface, and the first dielectric layer directly contacts the spacer. A floating spacer is disposed on the first dielectric layer and on a sidewall of the gate, and at least one contact plug is disposed on the source/drain region, where the contact plug directly contacts the floating spacer.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 27, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Lung Chen, En-Chiuan Liou, Chih-Wei Yang, Yu-Cheng Tung, Kun-Yuan Liao, Feng-Yi Chang
  • Publication number: 20160347404
    Abstract: A transmission system includes a hub unit and a crankshaft for being respectively mounted to seat stays and a bottom bracket of a bicycle, a transmission unit and an engaging unit. The transmission unit includes a driving sprocket sleeved on the crankshaft, at least one driven sprocket mounted to the hub unit, and a chain trained on the driving and driven sprockets. The engaging unit includes first and second ratchet members sleeved co-rotatably on the crankshaft, and a resilient element for biasing the first ratchet member toward the second ratchet member. The first ratchet member is slidable relative to the crankshaft and has first ratchet teeth. The second ratchet member is co-rotatable with the driving sprocket and has second ratchet teeth.
    Type: Application
    Filed: December 1, 2015
    Publication date: December 1, 2016
    Inventors: Hubert Chen, Yung-Yuan Liao
  • Publication number: 20160327102
    Abstract: A bidirectional hub assembly includes an axle unit, a hub shell mounted on the axle unit, a driving unit mounted on the axle unit, and a plurality of right-hand-drive and left-hand-drive units that are mounted to the hub shell. Each of the right-hand-drive and left-hand-drive units has a pawl engageable with the driving unit. The bidirectional hub assembly serves as a right-hand-drive hub when the pawl of at least one of the right-hand-drive units is in an enabled state and the pawl of each of the left-hand-drive units is in a disabled state, and serves as a left-hand-drive hub when the pawl of at least one of the left-hand-drive units is in an enabled state and the pawl of each of the right-hand-drive units is in a disabled state.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 10, 2016
    Inventors: Hubert Chen, Yung-Yuan Liao
  • Patent number: 9490334
    Abstract: A semiconductor device having metal gate includes a substrate, a first metal gate positioned on the substrate, and a second metal gate positioned on the substrate. The first metal gate includes a first work function metal layer, and the first work function metal layer includes a taper top. The second metal gate includes a second work function metal layer. The first work function metal layer and the second work function metal layer are complementary to each other.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 8, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang
  • Publication number: 20160322468
    Abstract: A semiconductor device is disclosed. The semiconductor device includes: a substrate; a gate structure on the substrate; an interlayer dielectric (ILD) around the gate structure; a first contact plug in the ILD layer; a second dielectric layer on the ILD layer; a second contact plug in the second dielectric layer and electrically connected to the first contact plug; and a spacer between the second contact plug and the second dielectric layer.
    Type: Application
    Filed: May 28, 2015
    Publication date: November 3, 2016
    Inventors: Chia-Lin Lu, Chun-Lung Chen, Kun-Yuan Liao, Feng-Yi Chang, Chieh-Te Chen, Wei-Hao Huang
  • Patent number: 9484312
    Abstract: An inductor shielding structure includes a first conductive layer including a plurality of first conductive lines having a first width and a plurality of second conductive lines having a second width. The inductor shielding structure further includes a second conductive layer over the first conductive layer. The second conductive layer includes at least one third conductive line having a third width and a plurality of fourth conductive lines having a fourth width. Each conductive line of the at least one third conductive line is parallel to each conductive line of the plurality of first conductive lines. Each conductive line of the plurality of fourth conductive lines is parallel to each conductive line of the plurality of second conductive lines. The first width is different from the second width, or the third width is different from the fourth width.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: November 1, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Hsien Lin, Hsien-Yuan Liao, Ying-Ta Lu, Ho-Hsiang Chen, Tzu-Jin Yeh