Patents by Inventor Chung-Wen Chang

Chung-Wen 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: 11121308
    Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a magnetoresistive random access memory (MRAM) cell over a substrate. A dielectric structure overlies the substrate. The MRAM cell is disposed within the dielectric structure. The MRAM cell includes a magnetic tunnel junction (MTJ) sandwiched between a bottom electrode and a top electrode. A conductive wire overlies the top electrode. A sidewall spacer structure continuously extends along a sidewall of the MTJ and the top electrode. The sidewall spacer structure includes a first sidewall spacer layer, a second sidewall spacer layer, and a protective sidewall spacer layer sandwiched between the first and second sidewall spacer layers. The first and second sidewall spacer layers comprise a first material and the protective sidewall spacer layer comprises a second material different than the first material.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 14, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yao-Wen Chang, Chung-Chiang Min, Harry-Hak-Lay Chuang, Hung Cho Wang, Tsung-Hsueh Yang, Yuan-Tai Tseng, Sheng-Huang Huang, Chia-Hua Lin
  • Patent number: 11114610
    Abstract: A semiconductor structure includes an Nth metal layer, a diffusion barrier layer over the Nth metal layer, a first deposition of bottom electrode material over the diffusion barrier layer, a second deposition of bottom electrode material over the first deposition of bottom electrode material, a magnetic tunneling junction (MTJ) layer over the second deposition of bottom electrode material, a top electrode over the MTJ layer; and an (N+1)th metal layer over the top electrode; wherein the diffusion barrier layer and the first deposition of bottom electrode material are laterally in contact with a dielectric layer, the first deposition of bottom electrode material spacing the diffusion barrier layer and the second deposition of bottom electrode material apart, and N is an integer greater than or equal to 1. An associated electrode structure and method are also disclosed.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 7, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Chung-Yen Chou, Fu-Ting Sung, Yao-Wen Chang, Shih-Chang Liu
  • Publication number: 20210265289
    Abstract: Structures and formation methods of a chip package are provided. The chip package includes a semiconductor die having a conductive element and an antenna element over the semiconductor die. The chip package also includes a first conductive feature electrically connecting the conductive element of the semiconductor die and the antenna element. The chip package further includes a protective layer surrounding the first conductive feature. In addition, the chip package includes a second conductive feature over the first conductive feature. A portion of the second conductive feature is between the first conductive feature and the protective layer.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yung-Ping CHIANG, Yi-Che CHIANG, Nien-Fang WU, Min-Chien HSIAO, Chao-Wen SHIH, Shou-Zen CHANG, Chung-Shi LIU, Chen-Hua YU
  • Publication number: 20210240288
    Abstract: A touch panel includes a cover lens located at top of the touch panel, plural touch sensor units, and plural sensing channels. The touch sensor units are disposed below the cover lens and arranged in rows and columns. The touch sensor units are disposed on the sensing channels. Each of touch sensor units acquires a sensing magnitude for identifying a position of the cover lens that touched by the stylus according to signals outputted by the sensing channels. The sensing magnitude of one of the touch sensor units is composed of the signals of the adjacent sensing channels located within a vertical projection of the one of the touch sensor units.
    Type: Application
    Filed: September 20, 2020
    Publication date: August 5, 2021
    Inventors: Yaw-Guang CHANG, Hui-Min WANG, Cheng-Hung TSAI, Chung-Wen CHANG
  • Publication number: 20210027740
    Abstract: An electronic device control method applied to an electronic device can operate in a display mode and a touch sensing mode. The method comprises: (a) controlling the electronic device to have a first mode switch frequency; and (b) controlling the electronic device to have a second mode switch frequency different from the first mode switch frequency. The first mode switch frequency and the second mode switch frequency are frequencies for switching between the display mode and the touch sensing mode.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 28, 2021
    Inventors: Chih-Ming Wu, Yaw-Guang Chang, Chin-Jung Chen, Yu-Feng Lin, Chung-Wen Chang
  • Patent number: 10558306
    Abstract: A water mode detection method includes: operating a normal touch detection operation on each of a plurality of touch detection unit groups during each of a plurality of normal scan periods to obtain a first detection result; operating a dummy touch detection operation on a first touch detection group of the touch detection unit groups to obtain a second detection result during a dummy scan period, and setting a common voltage of a second touch detection group of a plurality of non-scanned touch detection unit groups to a reference ground during the dummy touch detection operation; and generating a water mode detection result according to the first detection result and the second detection result.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: February 11, 2020
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Fong-Wei Yang, Chun-Kai Chuang, Chih-Chen Tsai, Chung-Wen Chang
  • Publication number: 20180356931
    Abstract: A water mode detection method includes: operating a normal touch detection operation on each of a plurality of touch detection unit groups during each of a plurality of normal scan periods to obtain a first detection result; operating a dummy touch detection operation on a first touch detection group of the touch detection unit groups to obtain a second detection result during a dummy scan period, and setting a common voltage of a second touch detection group of a plurality of non-scanned touch detection unit groups to a reference ground during the dummy touch detection operation; and generating a water mode detection result according to the first detection result and the second detection result.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Fong-Wei Yang, Chun-Kai Chuang, Chih-Chen Tsai, Chung-Wen Chang
  • Patent number: 9582109
    Abstract: A method for detecting noise of a touch panel and performing signal control is provided, where the method may determine how many cycles of frame data are influenced by noise, may determine whether the frame data is influenced by noise by determining whether a number of cycles influenced by noise is greater than a first threshold value or not, and may determine whether a number of continuous frame data determined to be influenced by noise is greater than a second threshold value to generate a determination result. Finally, the method may determine whether to adjust a frequency of the transmitting signals according to the determination result.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 28, 2017
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu
  • Patent number: 9310945
    Abstract: A touch-sensing display device comprises a plurality of row electrodes and column electrodes, a capacitance detector, detecting first capacitance-variation values of the row electrodes and second capacitance-variation values of the column electrodes, and detecting third capacitance-variation values of each intersection of the row electrodes and the column electrodes. The processor counts the first number of the first and second capacitance-variation values, exceeding a first threshold, counts the second number of the first and second capacitance-variation values up to a maximum capacitor-variation value, and counts the third number of the third capacitance values, exceeding a second threshold. The processor makes the touch-sensing display device enter a bending mode when the first and second numbers are over a first predetermined number and a second predetermined number respectively, and the third number is below the first number.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 12, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 9262009
    Abstract: A touch device and method for detecting a touch point thereof are provided. The method includes: detecting a plurality of first touch values, second touch values and third touch values corresponding to a plurality of touch regions of a touch panel, respectively, during a first frame period, a second frame period and a third frame period; performing a value obtaining operation to output a median of the first touch value, the second touch value and the third touch value to which each of the touch regions correspond; and determining a real touch point according a touch threshold and the first touch values, the second touch values and the third touch values outputted by the value obtaining operation.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 16, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 9244579
    Abstract: A touch display apparatus and a touch mode switching method thereof are provided. A touch mode of a touch panel is switched according to a touch track and a touch area of an input tool.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 26, 2016
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Shen-Feng Tai, Chung-Wen Chang, Jui-Min Liu
  • Patent number: 9104265
    Abstract: A touch device and an operating method thereof are provided. The operating method includes the following steps. A plurality of data baseline values of the touch panel is calibrated and set during an initialization of a touch panel. A plurality of touch data is obtained after scanning the touch panel. A plurality of touch values corresponding to the touch panel is calculated according to the data baseline values and the touch data. A touch point is detected according to the touch values. When the touch data is complied with a re-calibration requirement, the data baseline values are re-calibrated and reset.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 11, 2015
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150169102
    Abstract: A touch display apparatus and a touch mode switching method thereof are provided. A touch mode of a touch panel is switched according to a touch track and a touch area of an input tool.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Shen-Feng Tai, Chung-Wen Chang, Jui-Min Liu
  • Publication number: 20150103031
    Abstract: A touch-sensing display device comprises a plurality of row electrodes and column electrodes, a capacitance detector, detecting first capacitance-variation values of the row electrodes and second capacitance-variation values of the column electrodes, and detecting third capacitance-variation values of each intersection of the row electrodes and the column electrodes. The processor counts the first number of the first and second capacitance-variation values, exceeding a first threshold, counts the second number of the first and second capacitance-variation values up to a maximum capacitor-variation value, and counts the third number of the third capacitance values, exceeding a second threshold. The processor makes the touch-sensing display device enter a bending mode when the first and second numbers are over a first predetermined number and a second predetermined number respectively, and the third number is below the first number.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150091814
    Abstract: A method for detecting noise of a touch panel and performing signal control is provided, where the method may determine how many cycles of frame data are influenced by noise, may determine whether the frame data is influenced by noise by determining whether a number of cycles influenced by noise is greater than a first threshold value or not, and may determine whether a number of continuous frame data determined to be influenced by noise is greater than a second threshold value to generate a determination result. Finally, the method may determine whether to adjust a frequency of the transmitting signals according to the determination result.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu
  • Patent number: 8988378
    Abstract: A touch device and a driving method thereof are provided. A scanning line driving frequency of the touch device is switched according to a plurality of preset driving frequency setting data groups, so as to prevent misjudgment of a touched position caused by electromagnetic noise.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 24, 2015
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Publication number: 20150062058
    Abstract: A touch panel capable of detecting a stylus is disclosed. At least one self scan cycle and at least one mutual scan cycle are performed in each scan frame, and touch identification of the stylus is affirmed when both touch identifications via the self scan cycle and the mutual scan cycle are detected.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Applicant: Himax Technologies Limited
    Inventors: Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu, Chun-Kai Chuang
  • Publication number: 20150042596
    Abstract: A touch panel capable of performing proximity function is disclosed. A voltage is applied to column electrode or row electrode during a self scan cycle, and a capacitive object close to a surface of the touch panel is measured on the same column electrode or row electrode. A voltage is applied to one axis during a mutual scan cycle, and a capacitive object close to the surface of the touch panel is measured on the other axis.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chung-Wen Chang, Shen-Feng Tai, Jui-Min Liu, Li-Lin Liu
  • Patent number: 8902186
    Abstract: A touch display apparatus and a touch position mapping method thereof are provided, by mapping a touch position detected by a touch module to a display area of a display module according to one fitting function, so that a touch position on the display area of the display module may be determined according to a mapping result.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: December 2, 2014
    Assignee: Himax Technologies Limited
    Inventors: Jui-Ming Liu, Li-Lin Liu, Chung-Wen Chang, Shen-Feng Tai
  • Patent number: 8872138
    Abstract: A UV curing system includes an enclosure defining an interior, a UV radiation source disposed within the interior of the enclosure, and a first window disposed within the interior of the enclosure. The first window creates a barrier that separates the UV radiation source and a processing chamber. A second window is disposed within the interior of the enclosure at a distance from the first window to define a gas channel. The second window defines a plurality of openings such that the gas channel is in fluid communication with the processing chamber. A gas inlet conduit is in fluid communication with the gas channel and is configured to introduce a cooling gas into the gas channel. A gas outlet is in fluid communication with the processing chamber and is configured to remove gas from the processing chamber.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: October 28, 2014
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yu-Ying Lu, Sung-Po Yang, Ding-I Liu, Kuo-Shu Tseng, Chung-Wen Chang