Patents by Inventor Yi-Chih Chang

Yi-Chih 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: 10312118
    Abstract: A bonding apparatus includes a wafer stage, a first chip stage, a first chip transporting device, a second stage and a second chip transporting device. The wafer stage is used for holding a wafer. The first chip stage is used for holding at least one first chip. The first chip transporting device is used for transporting the first chip from the first chip stage onto the wafer. The second chip stage is used for holding at least one second chip. The second chip transporting device is used for transporting the second chip from the second chip stage onto the wafer.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 4, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Pei-Shan Wu, Yi-Ting Hu, Ming-Tan Lee, Yu-Lin Wang, Yuh-Sen Chang, Pin-Yi Shin, Wen-Ming Chen, Wei-Chih Chen, Chih-Yuan Chiu
  • Publication number: 20190165167
    Abstract: A high-voltage semiconductor device structure is provided. The high-voltage semiconductor device structure includes a semiconductor substrate, a source ring in the semiconductor substrate, and a drain region in the semiconductor substrate. The high-voltage semiconductor device structure also includes a doped ring surrounding sides and a bottom of the source ring and a well region surrounding sides and bottoms of the drain region and the doped ring. The well region has a conductivity type opposite to that of the doped ring. The high-voltage semiconductor device structure further includes a conductor electrically connected to the drain region and extending over and across a periphery of the well region. In addition, the high-voltage semiconductor device structure includes a shielding element ring between the conductor and the semiconductor substrate. The shielding element ring extends over and across the periphery of the well region.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 30, 2019
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hung-Chou LIN, Yi-Cheng CHIU, Karthick MURUKESAN, Yi-Min CHEN, Shiuan-Jeng LIN, Wen-Chih CHIANG, Chen-Chien CHANG, Chih-Yuan CHAN, Kuo-Ming WU, Chun-Lin TSAI
  • Publication number: 20190056806
    Abstract: This invention discloses a capacitive stylus including a pen housing and a detachable eraser. The pen housing comprises a rear end section and a thinning section with a thinner wall thickness than that of the rear end section. A compressible latch is disposed at the outer surface of the eraser. The rear end section includes an axial groove. By pushing the latch to pass through the axial groove into the thinning section and rotating the latch within the thinning section, the pen housing is combined with the eraser.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 21, 2019
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Publication number: 20190056807
    Abstract: This invention discloses a capacitive stylus including a pen housing and an eraser for being applied to a touch device. The pen housing includes a tip for emitting an input signal, and the eraser can emit an erasing signal to the touch device. The intensity or erasing range of the erasing signal is determined by the pressure that the eraser exerted on the touch device. In addition, the eraser can trigger a signal to instruct the touch device performing an application.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 21, 2019
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Publication number: 20180260048
    Abstract: The present disclosure provides a portable electronic device and an active capacitive stylus thereof. The active capacitive stylus includes a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, an elastic assembly, an abutting assembly, a pen head structure and a power supply component. The circuit substrate is positioned on the support structure. The sensor module is electrically connected to the circuit substrate. The elastic assembly includes a flexible holder contacting the sensor module and a flexible element disposed between the flexible holder and the sensor module. The abutting assembly is disposed inside the pen-shaped casing structure to abut against the flexible holder. The pen head structure, the abutting assembly, the elastic assembly and the sensor module are abutted one to another, so that there is no gap between two of the pen head structure, the abutting assembly, the elastic assembly and the sensor module.
    Type: Application
    Filed: June 26, 2017
    Publication date: September 13, 2018
    Inventor: YI-CHIH CHANG
  • Patent number: 10042444
    Abstract: A capacitive stylus with two transmit electrodes is disclosed. The two transmit electrodes are isolated and shielded so that the transmit terminals of the transmit electrodes are spaced with a distance.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 7, 2018
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Publication number: 20180120958
    Abstract: A capacitive stylus with two transmit electrodes is disclosed. The two transmit electrodes are isolated and shielded so that the transmit terminals of the transmit electrodes are spaced with a distance.
    Type: Application
    Filed: December 16, 2016
    Publication date: May 3, 2018
    Inventors: Chia-Jui Yeh, Yi-Chih Chang
  • Publication number: 20170242501
    Abstract: A capacitive stylus with a replaceable conductive nib is disclosed. The capacitive stylus comprises a combination of a replaceable conductive nib and a tip.
    Type: Application
    Filed: March 14, 2016
    Publication date: August 24, 2017
    Inventors: Ying-Hwa Tang, Yi-Chih Chang, Hsin-Chiang Ho
  • Patent number: 9703401
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped metal casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped metal casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped metal casing structure.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 11, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi-Chih Chang
  • Publication number: 20170108962
    Abstract: A capacitive whiteboard eraser is disclosed. The capacitive whiteboard eraser includes an eraser body, a control circuit board, an emitting electrode and a tact switch. The eraser body is for a user to hold the capacitive whiteboard eraser with hand. The control circuit board is disposed in the eraser body and configured to generate an erasing control signal. The emitter electrode is disposed on a housing of the eraser body, electrically connected with the control circuit board, and configured to transmit the erasing control signal. The tact switch is dispose on the control circuit board, and when the tact switch is turned on, the control circuit board correspondingly generates and transmits the erasing control signal to the emitting electrode, in order to transmit the erasing control signal to a capacitive whiteboard for performing an erasing procedure.
    Type: Application
    Filed: November 18, 2015
    Publication date: April 20, 2017
    Inventors: YING HWA TANG, YI CHIH CHANG
  • Publication number: 20170108956
    Abstract: A capacitive stylus is disclosed. The capacitive stylus comprises an elastomer and a sensor holder, which can effectively buffer and disperse the impact transmitted from a nib so as to protect internal components of the capacitive stylus.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 20, 2017
    Inventors: YING-HWA TANG, YI-CHIH CHANG
  • Publication number: 20170108953
    Abstract: The capacitive stylus includes a pen tube, an upper skeleton structure, a lower skeleton structure, a pen cover, a refill, a refill holder, a trigger element, a spring, a control circuit board, a pressure sensing element and an adjusting element. The pen cover is connected with the pen tube by the upper skeleton structure and the lower skeleton structure. The trigger element is inserted in another end of the refill holder. The pressure sensing element is electrically connected with the control circuit board and disposed in accordance with the trigger element. When the refill and the refill holder press the spring so that the trigger element contacts the pressure sensing element, the pressure sensing element detects the pressure force against the refill. The adjusting element is configured to adjust the gap between the pressure sensing element and the trigger element.
    Type: Application
    Filed: November 16, 2015
    Publication date: April 20, 2017
    Inventors: CHUNG-FUU MAO, YI-CHIH CHANG
  • Patent number: 9626011
    Abstract: A rechargeable capacitive stylus includes a pen-shaped casing structure, a sensor module, a pen head structure, and an electrical connector structure. The pen-shaped casing structure has a pen casing, a rotatable ring rotatably disposed around the pen casing, and a pen holder adjacent to the rotatable ring. The sensor module is disposed inside the pen-shaped casing structure. The pen head structure is movably disposed inside the pen-shaped casing structure to selectively contact the sensor module. The electrical connector structure is disposed inside the pen-shaped casing structure. The electrical connector structure includes a first electrical connector electrically connected to a power supply, and the first electrical connector has a first electrical connection portion. The pen casing has a first fixed opening for exposing the first electrical connection portion, and the rotatable ring has a movable opening that is moved relative to the pen casing or the pen holder.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 18, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi Chih Chang
  • Patent number: 9606642
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped casing structure. When the pen-shaped casing structure is inserted into a receiving space of the portable electronic device, the pen-shaped casing structure is positioned inside the receiving space of the portable electronic device by matching the retaining convex portion of the pen-shaped casing structure and a retaining concave portion that is disposed inside the receiving space of the portable electronic device.
    Type: Grant
    Filed: August 22, 2015
    Date of Patent: March 28, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi Chih Chang
  • Publication number: 20170075440
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped metal casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped metal casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped metal casing structure.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 16, 2017
    Inventor: YI-CHIH CHANG
  • Publication number: 20160357276
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped casing structure. When the pen-shaped casing structure is inserted into a receiving space of the portable electronic device, the pen-shaped casing structure is positioned inside the receiving space of the portable electronic device by matching the retaining convex portion of the pen-shaped casing structure and a retaining concave portion that is disposed inside the receiving space of the portable electronic device.
    Type: Application
    Filed: August 22, 2015
    Publication date: December 8, 2016
    Inventor: YI CHIH CHANG
  • Publication number: 20160320868
    Abstract: A rechargeable capacitive stylus includes a pen-shaped casing structure, a sensor module, a pen head structure, and an electrical connector structure. The pen-shaped casing structure has a pen casing, a rotatable ring rotatably disposed around the pen casing, and a pen holder adjacent to the rotatable ring. The sensor module is disposed inside the pen-shaped casing structure. The pen head structure is movably disposed inside the pen-shaped casing structure to selectively contact the sensor module. The electrical connector structure is disposed inside the pen-shaped casing structure. The electrical connector structure includes a first electrical connector electrically connected to a power supply, and the first electrical connector has a first electrical connection portion. The pen casing has a first fixed opening for exposing the first electrical connection portion, and the rotatable ring has a movable opening that is moved relative to the pen casing or the pen holder.
    Type: Application
    Filed: July 31, 2015
    Publication date: November 3, 2016
    Inventor: YI CHIH CHANG
  • Publication number: 20060290815
    Abstract: An analog color video signal is inputted to a chip, which converts the analog signal into digital video signal. The digital color difference signals are then converted into three primary color format. Then a format detector detects the resolution and the scanning format. If the video signal is of interlaced scanning format, the detector unit removes the interlacing and converts the interlace into progressive format. The video signal is enhanced by a enhancing unit and adjusted to fit into the frame of the display screen.
    Type: Application
    Filed: September 14, 2005
    Publication date: December 28, 2006
    Inventors: Yi-Chih Chang, Wen-Ming Lu
  • Patent number: D417204
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: November 30, 1999
    Assignee: First International Computer, Inc.
    Inventors: Ching Lung Liu, Yi-Chih Chang