Patents by Inventor Chi-Wei Chang

Chi-Wei 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).

  • Publication number: 20190295849
    Abstract: A method for fabricating semiconductor device includes the steps of first forming a gate dielectric layer on a substrate; forming a gate material layer on the gate dielectric layer, and removing part of the gate material layer and part of the gate dielectric layer to form a gate electrode, in which a top surface of the gate dielectric layer adjacent to two sides of the gate electrode is lower than a top surface of the gate dielectric layer between the gate electrode and the substrate. Next, a first mask layer is formed on the gate dielectric layer and the gate electrode, part of the first mask layer and part of the gate dielectric layer are removed to form a first spacer, a second mask layer is formed on the substrate and the gate electrode, and part of the second mask layer is removed to forma second spacer.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: I-Fan Chang, Yen-Liang Wu, Wen-Tsung Chang, Jui-Ming Yang, Jie-Ning Yang, Chi-Ju Lee, Chun-Ting Chiang, Bo-Yu Su, Chih-Wei Lin, Dien-Yang Lu
  • Patent number: 10422744
    Abstract: Provided is an interferometer for inspecting a test sample. The interferometer includes: a light source for providing a light beam; a beam splitting element, splitting the light beam into first and second incident light, wherein the first incident light is reflected by the test sample into first reflection light; a reflecting element, reflecting the second incident light into second reflection light; an optical detection element, receiving the first and the second reflection light into an interference signal; and a signal processing module, coupled to the optical detection element, for performing spatial differential calculation on the interference signal to generate a demodulation image of the test sample.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 24, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ting-Wei Chang, Yuan-Chin Lee, Chi-Shen Chang, Hung-Chih Chiang, Shuen-Chen Chen
  • Publication number: 20190289256
    Abstract: The present invention discloses an image processing device and an image processing method. The image processing method includes steps of: referring to multiple frames or an auxiliary data associated with the frames to determine whether the frames contain substantially the same frames; selecting the frames according to whether the frames contain substantially the same frames to generate multiple selected frames; and performing video processing on the selected frames. When the frames do not contain substantially the same frames, the selected frames are the same as the frames, and when the frames contain substantially the same frames, the selected frames are part of the frames.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 19, 2019
    Inventors: CHIA-WEI YU, CHENG-HSIN CHANG, CHUN-HSING HSIEH, CHI-HSIUNG CHENG
  • Patent number: 10388749
    Abstract: A semiconductor device includes a substrate, a gate structure, a spacer, a mask layer, and at least one void. The gate structure is disposed on the substrate, and the gate structure includes a metal gate electrode. The spacer is disposed on sidewalls of the gate structure, and a topmost surface of the spacer is higher than a topmost surface of the metal gate electrode. The mask layer is disposed on the gate structure. At least one void is disposed in the mask layer and disposed between the metal gate electrode and the spacer.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: August 20, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Yen-Liang Wu, Wen-Tsung Chang, Jui-Ming Yang, I-Fan Chang, Chun-Ting Chiang, Chih-Wei Lin, Bo-Yu Su, Chi-Ju Lee
  • Patent number: 10366896
    Abstract: A method for fabricating semiconductor device includes the steps of first forming a gate dielectric layer on a substrate; forming a gate material layer on the gate dielectric layer, and removing part of the gate material layer and part of the gate dielectric layer to form a gate electrode, in which a top surface of the gate dielectric layer adjacent to two sides of the gate electrode is lower than a top surface of the gate dielectric layer between the gate electrode and the substrate. Next, a first mask layer is formed on the gate dielectric layer and the gate electrode, part of the first mask layer and part of the gate dielectric layer are removed to form a first spacer, a second mask layer is formed on the substrate and the gate electrode, and part of the second mask layer is removed to form a second spacer.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: July 30, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: I-Fan Chang, Yen-Liang Wu, Wen-Tsung Chang, Jui-Ming Yang, Jie-Ning Yang, Chi-Ju Lee, Chun-Ting Chiang, Bo-Yu Su, Chih-Wei Lin, Dien-Yang Lu
  • Publication number: 20190221063
    Abstract: The invention relates to a mixed photonic lock structure having intelligent identification and a method thereof. It comprises a mixed photonic key inserted into a mixed photonic lock body. A power supply unit of the mixed photonic lock body supplies the required power to the mixed photonic lock body and the mixed photonic key. An infrared (IR)-LED in the mixed photonic lock body emits a corresponding signal to an infrared photo detector (IR-PD) in the mixed photonic key. When the comparison conducted by a signal comparison circuit of the mixed photonic key matches, a RGB-LED emits a light signal password to a RGB PD of the mixed photonic lock body to control the lock to unlock after the comparison conducted by a signal comparison circuit of the mixed photonic lock body matches.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 18, 2019
    Inventors: CHI-TA YANG, YUN-SOW SHIEH, ZIH-RUEI WANG, DING-YUAN WANG, CHIH-TING LIU, JUN-XIANG CHANG, XUAN-ZHI ZHANG, PO-JU LIN, GUO-WEI XU ZENG
  • Patent number: 10354466
    Abstract: The invention relates to a mixed photonic lock structure having intelligent identification and a method thereof. It comprises a mixed photonic key inserted into a mixed photonic lock body. A power supply unit of the mixed photonic lock body supplies the required power to the mixed photonic lock body and the mixed photonic key. An infrared (IR)-LED in the mixed photonic lock body emits a corresponding signal to an infrared photo detector (IR-PD) in the mixed photonic key. When the comparison conducted by a signal comparison circuit of the mixed photonic key matches, a RGB-LED emits a light signal password to a RGB PD of the mixed photonic lock body to control the lock to unlock after the comparison conducted by a signal comparison circuit of the mixed photonic lock body matches.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: July 16, 2019
    Assignees: National Kaohsiung Marine University
    Inventors: Chi-Ta Yang, Yun-Sow Shieh, Zih-Ruei Wang, Ding-Yuan Wang, Chih-Ting Liu, Jun-Xiang Chang, Xuan-Zhi Zhang, Po-Ju Lin, Guo-Wei Xu Zeng
  • Publication number: 20180276822
    Abstract: An ultra-dense electrode-based brain imaging system with high spatial and temporal resolution. A Sparsity and Smoothness enhanced Method Of Optimized electrical TomograpHy (s-SMOOTH) based reconstruction technique to improve the spatial resolution and localization accuracy of reconstructed brain images is described. Also described is a graph Fractional-Order Total Variation (gFOTV) based reconstruction technique to improve the spatial resolution and localization accuracy of reconstructed brain images.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 27, 2018
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Wentai Liu, Ying Li, Jing Qin, Chi-Wei Chang, Yi-Kai Lo
  • Patent number: 10057674
    Abstract: A headphone system includes a headphone body and a signal source device. The headphone body includes a connection kit, a first earmuff module, a second earmuff module, a connection port, and a processor. The first earmuff module is connected to a first terminal of the connection kit. The first earmuff module includes at least one first pressure sensor and a first speaker. The second earmuff module is connected to a second terminal of the connection kit. The second earmuff module includes at least one second pressure sensor and a second speaker. The connection port is used for receiving an audio source signal from the signal source device. The processor receives a plurality of pressure values detected by the at least one first pressure sensor and second pressure sensor and sets at least one set of equalizer gains of the first speaker and the second speaker according to the pressure values.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: August 21, 2018
    Assignee: Toong In Electronic Corp.
    Inventors: Teng-Sung Tseng, Chi-Wei Chang
  • Patent number: 9658316
    Abstract: In accordance with some embodiments, a positioning calibration device arranged within a transfer buffer is provided. The positioning calibration device includes at least one target element and at least three positioning modules. The at least one target element is arranged on a wafer transportation apparatus within the transfer buffer. The transportation apparatus is utilized to transfer a wafer. The at least three positioning modules are utilized to detect the positions of the at least one target element by wireless communications for generating position information of the wafer transportation apparatus. The heights which each of the at least three positioning modules arranged at are not the same.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 23, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chi-Wei Chang, Woo-Guan Chiong
  • Patent number: 9373300
    Abstract: A power management method and a power management device for a display are disclosed, including: comparing contents in an original frame image with contents in a previous image to generate a plurality of successive second periods with first stages and second stages, shortening a plurality of time intervals in the first pulse timing distribution and outputting the first pulse timing distribution for displaying a first sub-frame image on the display during the first stage of one of the plurality of successive second periods, and shortening a plurality of time intervals in the second pulse timing distribution and outputting the second pulse timing distribution for displaying a second sub-frame image on the display during the first stage of the other one of the plurality of successive second periods; and turning off the driving circuit of the display in the second stages.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: June 21, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Chi-Wei Chang, Feng-Ming Hsu, Szu-Che Yeh
  • Publication number: 20160118012
    Abstract: A power management method and a power management device for a display are disclosed, including: comparing contents in an original frame image with contents in a previous image to generate a plurality of successive second periods with first stages and second stages, shortening a plurality of time intervals in the first pulse timing distribution and outputting the first pulse timing distribution for displaying a first sub-frame image on the display during the first stage of one of the plurality of successive second periods, and shortening a plurality of time intervals in the second pulse timing distribution and outputting the second pulse timing distribution for displaying a second sub-frame image on the display during the first stage of the other one of the plurality of successive second periods; and turning off the driving circuit of the display in the second stages.
    Type: Application
    Filed: December 26, 2014
    Publication date: April 28, 2016
    Inventors: Chi-Wei Chang, Feng-Ming Hsu, Szu-Che Yeh
  • Publication number: 20150185310
    Abstract: In accordance with some embodiments, a positioning calibration device arranged within a transfer buffer is provided. The positioning calibration device includes at least one target element and at least three positioning modules. The at least one target element is arranged on a wafer transportation apparatus within the transfer buffer. The transportation apparatus is utilized to transfer a wafer. The at least three positioning modules are utilized to detect the positions of the at least one target element by wireless communications for generating position information of the wafer transportation apparatus. The heights which each of the at least three positioning modules arranged at are not the same.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Wei CHANG, Woo-Guan CHIONG
  • Publication number: 20150162227
    Abstract: Embodiments of mechanisms of an etching apparatus are provided. The etching apparatus includes a processing chamber. The etching apparatus also includes a gas distribution plate disposed in the processing chamber and comprising a number of exhaust openings. The etching apparatus further includes a number of end-point detectors disposed on the gas distribution plate. The gas distribution plate is configured to spurt gas into the processing chamber via the exhaust openings during a semiconductor process.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 11, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Wei CHANG, Ping-Ling FAN
  • Patent number: 8292440
    Abstract: A projection module includes a base, a light source, a light valve, a lens module, and an adjustment module. The light source is disposed on the base and capable of providing an illumination beam. The light valve is disposed on the base and capable of converting the illumination beam into an image beam. The lens module is slidably disposed on the base and capable of projecting the image beam. The adjustment mechanism includes a rolling wheel and a slide pin. The rolling wheel is pivotably mounted to the base and includes a slide groove. The slide pin is fixed to the lens module and extends into the slide groove. The rolling wheel is capable of pivoting to drive the slide groove to pivot and the slide groove moves the slide pin to drive the lens module to move with respect to the base when the slide groove pivots.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: October 23, 2012
    Assignee: Young Optics Inc.
    Inventors: Chi-Wei Chang, Wei-Szu Lin, Hsu-Chun Cheng
  • Publication number: 20110279783
    Abstract: An optical engine includes a chassis, a light source module, a light combination module, a light-homogenizing module and a projection lens module. The chassis has different positioning parts, and a part of members of each of the light source module, light combination module, light-homogenizing module, and projection lens module are inserted into a corresponding positioning parts of the chassis to achieve accurate positioning.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 17, 2011
    Inventors: Chi-Wei CHANG, Wei-Szu Lin
  • Patent number: 8054376
    Abstract: An image sensor holder a frame, a first slidable holder, a second slidable holder, a first and a second driving arms, a first and a second driving device and at least two restoration devices. The first slidable holder is slidably mounted on the frame. The second slidable holder is slidably mounted on the first slidable holder. The first and second driving devices are separately mounted on the frame. The first driving arm rotatably is mounted on the frame and contacts the first slidable holder and the first driving device by both opposite ends thereof. The second driving arm slidably is mounted on the frame and contacts the second slidable holder and the second driving device respectively by both opposite ends thereof. The restoration devices are respectively positioned on the frame and the first holder for restoring the first and second holders back to original positions.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: November 8, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chi-Wei Chang, Heng-Hsin Huang
  • Publication number: 20110043772
    Abstract: A projection module includes a base, a light source, a light valve, a lens module, and an adjustment module. The light source is disposed on the base and capable of providing an illumination beam. The light valve is disposed on the base and capable of converting the illumination beam into an image beam. The lens module is slidably disposed on the base and capable of projecting the image beam. The adjustment mechanism includes a rolling wheel and a slide pin. The rolling wheel is pivotably mounted to the base and includes a slide groove. The slide pin is fixed to the lens module and extends into the slide groove. The rolling wheel is capable of pivoting to drive the slide groove to pivot and the slide groove moves the slide pin to drive the lens module to move with respect to the base when the slide groove pivots.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 24, 2011
    Applicant: YOUNG OPTICS INC.
    Inventors: Chi-Wei Chang, Wei-Szu Lin, Hsu-Chun Cheng
  • Publication number: 20100110281
    Abstract: An image sensor holder a frame, a first slidable holder, a second slidable holder, a first and a second driving arms, a first and a second driving device and at least two restoration devices. The first slidable holder is slidably mounted on the frame. The second slidable holder is slidably mounted on the first slidable holder. The first and second driving devices are separately mounted on the frame. The first driving arm rotatably is mounted on the frame and contacts the first slidable holder and the first driving device by both opposite ends thereof. The second driving arm slidably is mounted on the frame and contacts the second slidable holder and the second driving device respectively by both opposite ends thereof. The restoration devices are respectively positioned on the frame and the first holder for restoring the first and second holders back to original positions.
    Type: Application
    Filed: April 28, 2009
    Publication date: May 6, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHI-WEI CHANG, HENG-HSIN HUANG
  • Publication number: 20090272360
    Abstract: A lubricant device of four-stroke engine is provided according to the present invention. The lubricant device is applicable to a four-stroke engine having a cylinder, a crank case, a rocker arm room and a cam room connected to the rocker arm room. The lubricant device mainly has the rocker arm room and the crank case be connected to each other, and the design of alternating oil supply and oil recycling channels enables lubricant mists to cycle from the crank case through the rocker arm room to the cam room, and then be re-absorbed into the crank case, thereby allowing engines to be manipulated at various angles.
    Type: Application
    Filed: July 10, 2009
    Publication date: November 5, 2009
    Applicant: Industrial Technology Research Institute
    Inventors: Shao-Yu LI, Yeu-Jou Lin, Huan-Lung Gu, Chi-Wei Chang