Patents by Inventor Wen-Chung Chang

Wen-Chung 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: 9136276
    Abstract: A method for forming a memory cell structure includes following steps. A substrate including at least a memory cell region defined thereon is provided, and a first gate stack is formed in the memory cell region. A first LDD implantation is performed to form a first LDD at one side of the first gate stack in the memory cell region, and the first LDD includes a first conductivity type. A second LDD implantation is performed to form a second LDD at one side of the first gate stack opposite to the first LDD in the memory cell region, and the second LDD includes the first conductivity type. The first LDD and the second LDD are different from each other.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: September 15, 2015
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Ya-Huei Huang, Sung-Bin Lin, Wen-Chung Chang, Feng-Ji Tsai, Yen-Ting Ho, Chien-Hung Chen
  • Publication number: 20150056775
    Abstract: A method for manufacturing a non-volatile memory structure includes providing a substrate having a gate structure, performing a first oxidation process to form a first SiO layer at least covering a bottom corner of the conductive layer, performing a first etching process to remove the first SiO layer and a portion of the dielectric layer to form a cavity, performing a second oxidation process to form a second SiO layer covering sidewalls of the cavity and a third SiO layer covering a surface of the substrate, forming a first SiN layer filling in the cavity and covering the gate structure on the substrate, and removing a portion of the first SiN layer to form a SiN structure including a foot portion filling in the cavity and an erection portion upwardly extended from the foot portion, and the erection portion covering sidewalls of the gate structure.
    Type: Application
    Filed: October 3, 2014
    Publication date: February 26, 2015
    Inventors: Ya-Huei Huang, Shen-De Wang, Wen-Chung Chang, Feng-Ji Tsai, Chien-Hung Chen
  • Patent number: 8848454
    Abstract: A method for programming a non-volatile memory cell is described. The memory cell includes a substrate, a gate over the substrate, a charge-trapping structure at least between the substrate and the gate, and first and second S/D regions in the substrate beside the gate. The method includes performing a channel-initiated secondary electron (CHISEL) injection process to inject electrons to the charge-trapping structure.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: September 30, 2014
    Assignee: United Microelectronics Corp.
    Inventors: Feng-Ji Tsai, Shen-De Wang, Wen-Chung Chang, Ya-Huei Huang, Chien-Hung Chen
  • Patent number: 8837220
    Abstract: A manipulating method of a nonvolatile memory is provided and comprises following steps. The nonvolatile memory having a plurality of memory cell is provided. Two adjacent memory cells correspond to one bit and comprise a substrate, a first and another first doping regions, a second doping region, a charge trapping layer, a control gate, a first bit line, a source line and a second bit line different from the first bit line. A first and a second channel are formed. The charge trapping layer is disposed on the first and the second channels. The two adjacent memory cells are programmed by following steps. A first positive and negative voltages are applied to the control gate between the first and the second doping regions and the control gate between the second and the another first doping regions, respectively. A first voltage is applied to the source line.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: September 16, 2014
    Assignee: United Microelectronics Corp.
    Inventors: Shen-De Wang, Wen-Chung Chang, Ya-Huei Huang, Feng-Ji Tsai, Chien-Hung Chen
  • Publication number: 20140197472
    Abstract: A method for manufacturing a non-volatile memory structure includes providing a substrate having a memory region and a logic region defined thereon, masking the logic region while forming at least a first gate in the memory region, forming an oxide-nitride-oxide (ONO) structure under the first gate, forming an oxide structure covering the ONO structure on the substrate, masking the memory region while forming a second gate in the logic region, and forming a first spacer on sidewalls of the first gate and a second spacer on sidewalls of the second gate simultaneously.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Chung Chang, Shen-De Wang, Ya-Huei Huang, Feng-Ji Tsai, Chien-Hung Chen
  • Publication number: 20140198574
    Abstract: A manipulating method of a nonvolatile memory is provided and comprises following steps. The nonvolatile memory having a plurality of memory cell is provided. Two adjacent memory cells correspond to one bit and comprise a substrate, a first and another first doping regions, a second doping region, a charge trapping layer, a control gate, a first bit line, a source line and a second bit line different from the first bit line. A first and a second channel are formed. The charge trapping layer is disposed on the first and the second channels. The two adjacent memory cells are programmed by following steps. A first positive and negative voltages are applied to the control gate between the first and the second doping regions and the control gate between the second and the another first doping regions, respectively. A first voltage is applied to the source line.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Shen-De Wang, Wen-Chung Chang, Ya-Huei Huang, Feng-Ji Tsai, Chien-Hung Chen
  • Publication number: 20140175531
    Abstract: A method for manufacturing a non-volatile memory structure includes providing a substrate having a gate structure, performing a first oxidation process to form a first SiO layer at least covering a bottom corner of the conductive layer, performing a first etching process to remove the first SiO layer and a portion of the dielectric layer to form a cavity, performing a second oxidation process to form a second SiO layer covering sidewalls of the cavity and a third SiO layer covering a surface of the substrate, forming a first SiN layer filling in the cavity and covering the gate structure on the substrate, and removing a portion of the first SiN layer to form a SiN structure including a foot portion filling in the cavity and an erection portion upwardly extended from the foot portion, and the erection portion covering sidewalls of the gate structure.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Ya-Huei Huang, Shen-De Wang, Wen-Chung Chang, Feng-Ji Tsai, Chien-Hung Chen
  • Publication number: 20140092689
    Abstract: A method for programming a non-volatile memory cell is described. The memory cell includes a substrate, a gate over the substrate, a charge-trapping structure at least between the substrate and the gate, and first and second S/D regions in the substrate beside the gate. The method includes performing a channel-initiated secondary electron (CHISEL) injection process to inject electrons to the charge-trapping structure.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 3, 2014
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Feng-Ji Tsai, Shen-De Wang, Wen-Chung Chang, Ya-Huei Huang, Chien-Hung Chen
  • Publication number: 20130085387
    Abstract: The present invention provides a radiotherapy system that can monitor a target location in real time. The radiotherapy system includes a remote control system operable to actuate a real-time image capturing device to acquire images in real time for monitoring the target location. The system also includes an image registration system that can register the acquired image with an image previously captured for the treatment plan, whereby it can be determined whether the patient's tumor is in the beam's eye view of the treatment plan. By confirming that the tumor is in the range of the beam's eye view, the accuracy of the treatment can be improved, and the irradiated area can be reduced, which makes the radiation treatment safer.
    Type: Application
    Filed: May 8, 2012
    Publication date: April 4, 2013
    Inventors: Yu-Jen Chen, Chia-Yuan Liu, Wen-Chung Chang, Chin-Sheng Chen
  • Patent number: 8122179
    Abstract: A memory apparatus and a method of evenly using the blocks of a flash memory are provided. The memory apparatus comprises a flash memory and a controller. The flash memory comprises a data region with a plurality of data blocks and a spare region with a plurality of spare blocks. The controller is configured to receive data corresponding to the first data block, select a spare block, program data into the spare block when the erase count corresponding to the spare block is less than the predetermined value or to select a second data block and program data stored in the second data block into the spare block when the erased count corresponding to the spare block reaches the predetermined value. As a result, the blocks of the flash memory are used evenly.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: February 21, 2012
    Assignee: Silicon Motion, Inc.
    Inventors: Chien-Cheng Lin, Wen-Chung Chang
  • Patent number: 8001651
    Abstract: A floor washing robot is disclosed. The robot includes: a control unit for controlling a power source to drive at least three omnidirectional wheels and at least one washing disc to rotate to wash a floor; a water spray device for spraying water; and a vacuum device for vacuuming waste water or dirt. The floor washing robot can be moved freely in any direction to improve the cleaning effect.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: August 23, 2011
    Assignee: National Taipei University of Technology
    Inventor: Wen-Chung Chang
  • Patent number: 7683487
    Abstract: A structure applied to a photolithographic process is provided. The structure includes at least a film layer, an optical isolation layer, an anti-reflection coating and a photoresist layer sequentially formed over a substrate. In the photolithographic process, the optical isolation layer stops light from penetrating down to the film layer. Since the optical isolation layer is set up underneath the photoresist layer, light emitted from a light source during photo-exposure is prevented from reflecting from the substrate surface after passing through the film layer. Thus, the critical dimensions of the photolithographic process are unaffected by any change in the thickness of the film layer.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: March 23, 2010
    Assignee: Macronix International Co., Ltd.
    Inventors: Shun-Li Lin, Yun-Chu Lin, Wen-Chung Chang, Ching-Yi Lee
  • Publication number: 20090314318
    Abstract: A floor washing robot is disclosed. The robot includes: a control unit for controlling a power source to drive at least three omnidirectional wheels and at least one washing disc to rotate to wash a floor; a water spray device for spraying water; and a vacuum device for vacuuming waste water or dirt. The floor washing robot can be moved freely in any direction to improve the cleaning effect.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 24, 2009
    Inventor: Wen-Chung Chang
  • Publication number: 20090157947
    Abstract: A memory apparatus and a method of evenly using the blocks of a flash memory are provided. The memory apparatus comprises a flash memory and a controller. The flash memory comprises a data region with a plurality of data blocks and a spare region with a plurality of spare blocks. The controller is configured to receive data corresponding to the first data block, select a spare block, program data into the spare block when the erase count corresponding to the spare block is less than the predetermined value or to select a second data block and program data stored in the second data block into the spare block when the erased count corresponding to the spare block reaches the predetermined value. As a result, the blocks of the flash memory are used evenly.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Applicant: SILICON MOTION, INC.
    Inventors: Chien-Cheng Lin, Wen-Chung Chang
  • Patent number: 7270549
    Abstract: This invention is about providing a kind of electrical connection design comprising insulator body and conductive terminal; the insulator body is designed with several receptor holes, where each receptor hole is designed with the first conductive terminal and the second conductive terminal; the outer side of the two conductive terminals are designed with conductive connecting section, the inner side is designed with elastic structure. As the first conductive terminal moves downward under pressure, the elastic structure generates elastic deformation. When not under pressure, the elastic structure will move the first conductive terminal upward due to the elasticity, returning to the original state. In addition, the said electrical structure is designed with a shifting structure.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: September 18, 2007
    Assignee: Lotes Co., Ltd.
    Inventors: Ted Ju, Wen-Chung Chang
  • Patent number: 7261568
    Abstract: A kind of electrical connector comprising insulator body and conductive terminal; the insulator body is installed with several terminal receptor holes; each receptor hole is installed with the first conductive terminal and the second and third conductive terminal located at the two ends of the first conductive terminal; the second and third conductive terminal could move relative to the first conductive terminal and electrically connect to each other in order to form press on contact type electrical connector. Comparing to the present art, the electrical connector of this invention prevents the two ends of the one-body conductive terminal from compression by PCB and chip module at the same time that makes the conductive terminal easily yield and deformed, making the elasticity of the terminal to become poorer and present contact problem, in order to guarantee good electrical conductivity.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: August 28, 2007
    Assignee: Lotes Co., Ltd.
    Inventors: Ted Ju, Wen-Chung Chang
  • Publication number: 20070169086
    Abstract: A system for updating In-System Program (ISP) comprises an ISP loader that is called when an Interrupt Function Table is matched, an ISP RAM space has run out, or a page fault has happened. When an Interrupt Function Table is matched, a Function is partially updated; when an ISP RAM space has run out, a Function is executed; and when a page fault has happened, the page fault address is recorded and the page fault is corrected.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 19, 2007
    Inventors: Chin-Wei Cheng, Wen-Chung Chang
  • Patent number: 7201584
    Abstract: An electrical connector for a chip module including an insulator body and a conductive terminal. The insulator body has a plurality of receptor holes. Each of the plurality of receptor holes has a first conductive terminal and a second receptor hole. A first end of the first conductive terminal forms a first conductive connecting section connected to a terminal of the chip module and a second end forming a press-on section. A first end of the second conductive terminal forms a second conductive connecting section that could be electrically connected to an external electronic terminal and a second end forms an elastic section that presses against the press-on section of the first conductive terminal. At least one part of the first conductive connecting section is located at an oblique angle relative to an outer edge of the insulator body.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: April 10, 2007
    Assignee: Lotes Co., Ltd.
    Inventors: Ted Ju, Wen-Chung Chang
  • Publication number: 20070077789
    Abstract: An electrical connector for a chip module including an insulator body and a conductive terminal. The insulator body has a plurality of receptor holes. Each of the plurality of receptor holes has a first conductive terminal and a second receptor hole. A first end of the first conductive terminal forms a first conductive connecting section connected to a terminal of the chip module and a second end forming a press-on section. A first end of the second conductive terminal forms a second conductive connecting section that could be electrically connected to an external electronic terminal and a second end forms an elastic section that presses against the press-on section of the first conductive terminal. At least one part of the first conductive connecting section is located at an oblique angle relative to an outer edge of the insulator body.
    Type: Application
    Filed: January 18, 2006
    Publication date: April 5, 2007
    Inventors: Ted Ju, Wen-Chung Chang
  • Publication number: 20070077785
    Abstract: A kind of electrical connector comprising insulator body and conductive terminal; the insulator body is installed with several terminal receptor holes; each receptor hole is installed with the first conductive terminal and the second and third conductive terminal located at the two ends of the first conductive terminal; the second and third conductive terminal could move relative to the first conductive terminal and electrically connect to each other in order to form press on contact type electrical connector. Comparing to the present art, the electrical connector of this invention prevents the two ends of the one-body conductive terminal from compression by PCB and chip module at the same time that makes the conductive terminal easily yield and deformed, making the elasticity of the terminal to become poorer and present contact problem, in order to guarantee good electrical conductivity.
    Type: Application
    Filed: January 18, 2006
    Publication date: April 5, 2007
    Inventors: Ted Ju, Wen-Chung Chang