Patents by Inventor Wei-Chi Lee

Wei-Chi Lee 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: 11502088
    Abstract: A layout pattern of static random access memory at least includes a substrate, a plurality of fin structures on the substrate, a plurality of gate structures on the substrate and spanning the fin structures to form a plurality of transistors distributed on the substrate, the plurality of transistors include, a first pull-up transistor PU1, a first pull-down transistor PD1, a second pull-up transistor PU2, a second pull-down transistor PD2, a first pass gate transistor PG1, a second pass gate transistor PG2, a first read transistor RPD and a second read transistor RPG, and an additional fin structure, the additional fin structure is located between the fin structure of the first pass gate transistor PG1 and the fin structure of the second read transistor RPG.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: November 15, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chi Lee, Shu-Wei Yeh, Chang-Hung Chen
  • Publication number: 20220216220
    Abstract: A layout pattern of static random access memory at least includes a substrate, a plurality of fin structures on the substrate, a plurality of gate structures on the substrate and spanning the fin structures to form a plurality of transistors distributed on the substrate, the plurality of transistors include, a first pull-up transistor PU1, a first pull-down transistor PD1, a second pull-up transistor PU2, a second pull-down transistor PD2, a first pass gate transistor PG1, a second pass gate transistor PG2, a first read transistor RPD and a second read transistor RPG, and an additional fin structure, the additional fin structure is located between the fin structure of the first pass gate transistor PG1 and the fin structure of the second read transistor RPG.
    Type: Application
    Filed: February 1, 2021
    Publication date: July 7, 2022
    Inventors: Wei-Chi Lee, Shu-Wei Yeh, Chang-Hung Chen
  • Patent number: 10522551
    Abstract: A semiconductor device includes a first circuit structure and a second circuit structure. The first circuit structure has a first line terminal. The second circuit structure has a second line terminal. The first line terminal and the second line terminal are formed in a first circuit layer but separated by a gap. A conductive structure is forming in a second circuit layer above or below the first circuit layer, to electrically connect the first line terminal and the second line terminal.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: December 31, 2019
    Assignee: United Microelectronics Corp.
    Inventors: Chun-Hsien Huang, Ching-Cheng Lung, Yu-Tse Kuo, Chang-Hung Chen, Shu-Ru Wang, Wei-Chi Lee, Chun-Yen Tseng
  • Patent number: 10504788
    Abstract: An inverter structure includes a first fin structure and a second fin structure respectively disposed within a P-type transistor region and an N-type transistor region on a substrate. Agate line is disposed on the substrate. A first end of the gate line is within the P-type transistor region, and a second end of the gate line is within the N-type transistor region. Two dummy gate lines are disposed at two sides of the gate line. Each dummy gate line has a third end within the P-type transistor region, and a fourth end within the N-type transistor region. A distance between the first end and the first fin structure is greater than a distance between the third end and the first fin structure. The distance between the second end and the second fin structure is smaller than a distance between the fourth end and the second fin structure.
    Type: Grant
    Filed: March 10, 2019
    Date of Patent: December 10, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chi Lee, Han-Tsun Wang, Chang-Hung Chen, Po-Yu Yang, Mei-Ying Fan, Mu-Kai Tsai, Guan-Shyan Lin, Tsz-Hui Kuo, Cheng-Hsiung Chen
  • Publication number: 20190318964
    Abstract: An inverter structure includes a first fin structure and a second fin structure respectively disposed within a P-type transistor region and an N-type transistor region on a substrate. Agate line is disposed on the substrate. A first end of the gate line is within the P-type transistor region, and a second end of the gate line is within the N-type transistor region. Two dummy gate lines are disposed at two sides of the gate line. Each dummy gate line has a third end within the P-type transistor region, and a fourth end within the N-type transistor region. A distance between the first end and the first fin structure is greater than a distance between the third end and the first fin structure. The distance between the second end and the second fin structure is smaller than a distance between the fourth end and the second fin structure.
    Type: Application
    Filed: March 10, 2019
    Publication date: October 17, 2019
    Inventors: Wei-Chi Lee, Han-Tsun Wang, Chang-Hung Chen, Po-Yu Yang, Mei-Ying Fan, Mu-Kai Tsai, Guan-Shyan Lin, Tsz-Hui Kuo, Cheng-Hsiung Chen
  • Patent number: 10396064
    Abstract: The present invention provides a layout pattern of a static random access memory (SRAM). The layout pattern includes a first inverter and a second inverter constituting a latch circuit, wherein the latch circuit includes four transistors, a first access transistor (PG1) and a second access transistor (PG2) being electrically connected to the latch circuit, wherein the first access transistor is electrically connected to a first word line and a first bit line, and the second access transistor is electrically connected to a second word line and a second bit line, the first access transistor has a first gate length, the first access transistor has a second gate length, and the first gate length is different from the second gate length, and two read transistors series connected to each other, wherein one of the two read transistors is connected to the latch circuit.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 27, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jun-Jie Wang, Yu-Lin Wang, Tzu-Feng Chang, Wei-Chi Lee
  • Publication number: 20190206879
    Abstract: A semiconductor device includes a first circuit structure and a second circuit structure. The first circuit structure has a first line terminal. The second circuit structure has a second line terminal. The first line terminal and the second line terminal are formed in a first circuit layer but separated by a gap. A conductive structure is forming in a second circuit layer above or below the first circuit layer, to electrically connect the first line terminal and the second line terminal.
    Type: Application
    Filed: January 30, 2018
    Publication date: July 4, 2019
    Applicant: United Microelectronics Corp.
    Inventors: Chun-Hsien Huang, Ching-Cheng Lung, Yu-Tse Kuo, Chang-Hung Chen, Shu-Ru Wang, Wei-Chi Lee, Chun-Yen Tseng
  • Patent number: 10276446
    Abstract: An inverter structure includes a first fin structure and a second fin structure respectively disposed within a P-type transistor region and an N-type transistor region on a substrate. A gate line is disposed on the substrate. A first end of the gate line is within the P-type transistor region, and a second end of the gate line is within the N-type transistor region. Two dummy gate lines are disposed at two sides of the gate line. Each dummy gate line has a third end within the P-type transistor region, and a fourth end within the N-type transistor region. A distance between the first end and the first fin structure is greater than a distance between the third end and the first fin structure. The distance between the second end and the second fin structure is smaller than a distance between the fourth end and the second fin structure.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 30, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chi Lee, Han-Tsun Wang, Chang-Hung Chen, Po-Yu Yang, Mei-Ying Fan, Mu-Kai Tsai, Guan-Shyan Lin, Tsz-Hui Kuo, Cheng-Hsiung Chen
  • Publication number: 20190067268
    Abstract: The present invention provides a layout pattern of a static random access memory (SRAM). The layout pattern includes a first inverter and a second inverter constituting a latch circuit, wherein the latch circuit includes four transistors, a first access transistor (PG1) and a second access transistor (PG2) being electrically connected to the latch circuit, wherein the first access transistor is electrically connected to a first word line and a first bit line, and the second access transistor is electrically connected to a second word line and a second bit line, the first access transistor has a first gate length, the first access transistor has a second gate length, and the first gate length is different from the second gate length, and two read transistors series connected to each other, wherein one of the two read transistors is connected to the latch circuit.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: Jun-Jie Wang, Yu-Lin Wang, Tzu-Feng Chang, Wei-Chi Lee
  • Patent number: 10177132
    Abstract: A layout pattern of a static random access memory, including a first inverter and a second inverter constituting a latch circuit. A first inner access transistor, a second inner access transistor, a first outer access transistor and a second outer access transistor are electrically connected to the latch circuit, wherein the first outer access transistor has a first gate length, the first inner access transistor has a second gate length, and the first gate length is different from the second gate length.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 8, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jun-Jie Wang, Yu-Lin Wang, Tzu-Feng Chang, Wei-Chi Lee
  • Patent number: 9871047
    Abstract: A semiconductor structure includes a SRAM cell having transistors defined by fins and metal gate stack structures. A transistor and a corresponding pick up cell are disposed in an extension direction of the fins. The transistor and the corresponding pick up cell have metal gate stack structures of the same type.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 16, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Yu-Lin Wang, Wei-Chi Lee
  • Publication number: 20170243861
    Abstract: A layout pattern of a static random access memory, including a first inverter and a second inverter constituting a latch circuit. A first inner access transistor, a second inner access transistor, a first outer access transistor and a second outer access transistor are electrically connected to the latch circuit, wherein the first outer access transistor has a first gate length, the first inner access transistor has a second gate length, and the first gate length is different from the second gate length.
    Type: Application
    Filed: April 1, 2016
    Publication date: August 24, 2017
    Inventors: Jun-Jie Wang, Yu-Lin Wang, Tzu-Feng Chang, Wei-Chi Lee
  • Patent number: 9455202
    Abstract: A mask set includes a first mask and a second mask. The first mask includes geometric patterns. The second mask includes at least a strip-shaped pattern with a first edge and a second edge opposite to the first edge. The strip-shaped pattern has a centerline along a long axis of the strip-shaped pattern. The first edge includes inwardly displaced segments shifting towards the centerline and each of the inwardly displaced segments overlaps each of the geometric patterns.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: September 27, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chi Lee, Yu-Lin Wang, Chung-Yuan Lee
  • Publication number: 20160099184
    Abstract: A method of estimating the capability of a semiconductor manufacturing system is provided. Plural first transistors are formed and a first VtMM value and a first scale value are obtained. Plural second transistors are formed and a second VtMM value and a second scale value are obtained. Plural third transistors are formed and a third VtMM value and a third scale value are obtained. A first channel length of the first transistor is smaller than a second channel length of the second transistor and is equal to a third channel length of the third transistor. A VtMM v.s. scale figure is established. A line is formed by linking the first dot and the third dot and a vertical Gap between the line and the second dot is measured. The capability of the semiconductor system is determined based on the vertical Gap. The invention further provides a chip.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 7, 2016
    Inventors: Wei-Chi Lee, Yu-Lin Wang, Chun-Chieh Chang, Tzu-Feng Chang, Po-Peng Lin
  • Publication number: 20150348850
    Abstract: A mask set includes a first mask and a second mask. The first mask includes geometric patterns. The second mask includes at least a strip-shaped pattern with a first edge and a second edge opposite to the first edge. The strip-shaped pattern has a centerline along a long axis of the strip-shaped pattern. The first edge includes inwardly displaced segments shifting towards the centerline and each of the inwardly displaced segments overlaps each of the geometric patterns.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 3, 2015
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chi Lee, Yu-Lin Wang, Chung-Yuan Lee
  • Patent number: 8829487
    Abstract: A light emitting diode (LED) is provided. The LED includes a carrying substrate, a semiconductor composite layer and an electrode. The semiconductor composite layer is disposed on the carrying substrate, and an upper surface of the semiconductor composite layer includes a patterned surface and a flat surface. The electrode is disposed on the flat surface. A method for manufacturing the light emitting diode is provided as well.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: September 9, 2014
    Assignee: Walsin Lihwa Corporation
    Inventors: Wei-Chi Lee, Shiue-Lung Chen, Jang-Ho Chen
  • Patent number: 8551869
    Abstract: A method for roughening an epitaxy structure layer, including: providing an epitaxy structure layer; and etching a surface of the epitaxy structure layer by an excimer laser having an energy density of 1000 mJ/cm2 or less to form a roughened surface. In addition, a method for manufacturing a light-emitting diode having a roughened surface is provided.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 8, 2013
    Assignee: National Cheng Kung University
    Inventors: Shui-Jinn Wang, Wei-Chi Lee
  • Publication number: 20120241718
    Abstract: A vertical light emitting diodes (LEDs) with new construction for reducing the current crowding effect and increasing the light extraction efficiency (LEE) of the LEDs is provided. By providing at least one current blocking portion corresponded to an electrode, the current flows from the electrode may be diffused or distributed more laterally instead of straight downward directly under the electrode and the current crowding effect could be reduced thereby. By providing at least one current blocking portion covered by a mirror layer to form an omni-directional reflective (ODR) structure, the internal light of the LEDs may be reflected by the ODR structure and the LEE could be increased thereby.
    Type: Application
    Filed: February 16, 2012
    Publication date: September 27, 2012
    Applicant: WALSIN LIHWA CORPORATION
    Inventors: Shiue-Lung Chen, Wei-Chi Lee, Chang-Ho Chen
  • Publication number: 20120241719
    Abstract: A light emitting diode (LED) is provided. The LED includes a carrying substrate, a semiconductor composite layer and an electrode. The semiconductor composite layer is disposed on the carrying substrate, and an upper surface of the semiconductor composite layer includes a patterned surface and a flat surface. The electrode is disposed on the flat surface. A method for manufacturing the light emitting diode is provided as well.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 27, 2012
    Applicant: WALSIN LIHWA CORPORATION
    Inventors: Wei-Chi Lee, Shiue-Lung Chen, Jang-Ho Chen
  • Publication number: 20120214267
    Abstract: The present invention relates to a novel method for roughening an epitaxy structure layer, including: providing an epitaxy structure layer; and etching a surface of the epitaxy structure layer by an excimer laser having an energy density of 1000 mJ/cm2 or less to form a roughened surface. In addition, the present invention further provides a method for manufacturing a light-emitting diode having a roughened surface. Accordingly, the present invention can resolve the conventional problems of process complexity, time consumption and high cost.
    Type: Application
    Filed: June 21, 2011
    Publication date: August 23, 2012
    Applicant: National Cheng Kung University
    Inventors: Shui-Jinn WANG, Wei-Chi Lee