Patents by Inventor Wen-Hsien Chang

Wen-Hsien 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: 20240162308
    Abstract: The present disclosure provides a semiconductor structure with having a source/drain feature with a central cavity, and a source/drain contact feature formed in central cavity of the source/drain region, wherein the source/drain contact feature is nearly wrapped around by the source/drain region. The source/drain contact feature may extend to a lower most of a plurality semiconductor layers.
    Type: Application
    Filed: February 9, 2023
    Publication date: May 16, 2024
    Inventors: Pin Chun SHEN, Che Chia CHANG, Li-Ying WU, Jen-Hsiang LU, Wen-Chiang HONG, Chun-Wing YEUNG, Ta-Chun LIN, Chun-Sheng LIANG, Shih-Hsun CHANG, Chih-Hao CHANG, Yi-Hsien CHEN
  • Patent number: 11978511
    Abstract: A phase-change memory (PCM) cell is provided to include a first electrode, a second electrode, and a phase-change feature disposed between the first electrode and the second electrode. The phase-change feature is configured to change its data state based on a write operation performed on the PCM cell. The write operation includes a reset stage and a set stage. In the reset stage, a plurality of reset current pulses are applied to the PCM cell, and the reset current pulses have increasing current amplitudes. In the set stage, a plurality of set current pulses are applied to the PCM cell, and the set current pulses exhibit an increasing trend in current amplitude. The current amplitudes of the set current pulses are smaller than those of the reset current pulses.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: May 7, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yung-Huei Lee, Chun-Wei Chang, Jian-Hong Lin, Wen-Hsien Kuo, Pei-Chun Liao, Chih-Hung Nien
  • Publication number: 20240145403
    Abstract: An electronic package is provided, in which electronic elements and at least one packaging module including a semiconductor chip and a shielding structure covering the semiconductor chip are disposed on a carrier structure, an encapsulation layer encapsulates the electronic elements and the packaging module, and a shielding layer is formed on the encapsulation layer and in contact with the shielding structure. Therefore, the packaging module includes the semiconductor chip and the shielding structure and has a chip function and a shielding wall function simultaneously.
    Type: Application
    Filed: February 6, 2023
    Publication date: May 2, 2024
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Chih-Hsien CHIU, Wen-Jung TSAI, Chih-Chiang HE, Ko-Wei CHANG, Chia-Yang CHEN
  • Publication number: 20240088182
    Abstract: In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Yu Huang, Chun-Hao Chuang, Chien-Hsien Tseng, Kazuaki Hashimoto, Keng-Yu Chou, Wei-Chieh Chiang, Wen-Chien Yu, Ting-Cheng Chang, Wen-Hau Wu, Chih-Kung Chang
  • Patent number: 10317185
    Abstract: A silicon steel bars checking device includes a top board, a bottom board, a block unit and multiple bolts. A room is defined between the top board, the bottom board and the block unit. The silicon steel bars are inserted into the room and positioned between the top board, the bottom board and the block unit, and checked their specification. The silicon steel bars are removed from the device without any damage.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 11, 2019
    Assignee: NISHOKU TECHNOLOGY INC.
    Inventors: Piao-Fu Chen, Chien-Sheng Tsai, Wen-Hsien Chang
  • Publication number: 20180231362
    Abstract: A silicon steel bars checking device includes a top board, a bottom board, a block unit and multiple bolts. A room is defined between the top board, the bottom board and the block unit. The silicon steel bars are inserted into the room and positioned between the top board, the bottom board and the block unit, and checked their specification. The silicon steel bars are removed from the device without any damage.
    Type: Application
    Filed: August 11, 2017
    Publication date: August 16, 2018
    Inventors: Piao-Fu CHEN, Chien-Sheng TSAI, Wen-Hsien CHANG
  • Patent number: 6595113
    Abstract: A radiating structure of a food processor includes an outer shell and an inner shell disposed in the outer shell with a passage formed in between. The inner shell has vent holes on the top, and has a revolving member disposed above it; the revolving member has blades on a bottom, and is turnable together with the shaft of a motor of the food processor. The motor is disposed in the inner shell, and is connected to a fan disposed right above inlets of a base joined to the inner shell. When the motor is working, air is forced to travel into the inner shell via the inlets by the fan to absorb heat produced by the motor, and is forced to travel through the vent holes and the passage to the atmosphere by the blades of the revolving member, thus dissipating the heat.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: July 22, 2003
    Inventor: Wen-Hsien Chang
  • Patent number: 6447861
    Abstract: A faery adhesive tape is a transparent or translucent membrane substrate with constant width that is back-coated with glue, and multiple reels are produced and used as a tape. While producing multiple reels, the topic related describing intrigue is printed or tape-fitted at suitable interval on the substrate. The intrigue of said topic is expressed by segment with designs, letters, or excellent pictures and literary composition. Depending on the seriatim torn away of the adhesive tape, it will gradually deepen into the intrigue or gradually disclose the solution, build up the interesting effect of the expectation and pleasant surprise of users, and thus widen the scope of usage of the adhesive tape.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: September 10, 2002
    Assignee: Four Pillars Enterprise Co., Ltd.
    Inventors: Cheng-Kang Kao, Wen-Hsien Chang, Ko-Hung Hsu
  • Patent number: 5947306
    Abstract: A modular rack is composed of a support tube, a plurality of support arms, and a plurality of trays. The support tube is provided in the wall thereof with a plurality of retaining slots located at various levels of the support tube. The support arms are provided respectively at one end thereof with two retaining protuberances engageable with said retaining slots of the support tube. The trays are fastened respectively with another end of the support arms for holding a flower pot, vase, and the like.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: September 7, 1999
    Inventor: Wen-Hsien Chang