Patents by Inventor Chun-Ming Chuang

Chun-Ming Chuang 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: 20240134287
    Abstract: Embodiments of the present disclosure generally relate to lithography systems. More particularly, embodiments of the present disclosure relate to a method, a system, and a software application for a lithography process to control transmittance rate of write beams and write gray tone patterns in a single exposure operation. In one embodiment, a plurality of shots are provided by an image projection system in a lithography system to a photoresist layer. The plurality of shots exposes the photoresist layer to an intensity of light emitted from the image projection system. The local transmittance rate of the plurality of shots within an exposure area is varied to form varying step heights in the exposure area of the photoresist layer.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 25, 2024
    Inventors: YingChiao WANG, Chi-Ming TSAI, Chun-chih CHUANG, Yung Peng HU
  • Patent number: 11955515
    Abstract: A semiconductor device with dual side source/drain (S/D) contact structures and a method of fabricating the same are disclosed. The method includes forming a fin structure on a substrate, forming a superlattice structure on the fin structure, forming first and second S/D regions within the superlattice structure, forming a gate structure between the first and second S/D regions, forming first and second contact structures on first surfaces of the first and second S/D regions, and forming a third contact structure, on a second surface of the first S/D region, with a work function metal (WFM) silicide layer and a dual metal liner. The second surface is opposite to the first surface of the first S/D region and the WFM silicide layer has a work function value closer to a conduction band energy than a valence band energy of a material of the first S/D region.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Chuan Chiu, Chia-Hao Chang, Cheng-Chi Chuang, Chih-Hao Wang, Huan-Chieh Su, Chun-Yuan Chen, Li-Zhen Yu, Yu-Ming Lin
  • Patent number: 11914832
    Abstract: A membrane touch panel device includes a circuit board unit, a light-blocking frame plate, a plurality of light-blocking tabs, and an operation panel unit that are stacked along a front-rear direction. The circuit board unit includes a circuit board having a plurality of keypad circuits, and a plurality of LEDs being electrically connected to the circuit board. A light transmission rate of the circuit board ranges from 0% to 20%. The light-blocking frame plate is stacked on the circuit board, and defines a hollow section provided for the LEDs to protrude thereinto. The light-blocking tabs are connected to the light-blocking frame plate such that the light-blocking tabs respectively cover the LEDs. The operation panel unit is stacked on the light-blocking frame plate, and has a plurality of key segments being respectively aligned with the keypad circuits, and being adapted to permit light generated by the LEDs to pass therethrough.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: February 27, 2024
    Assignee: Tong Lung Metal Industry Co., Ltd.
    Inventors: Pai-Hsiang Chuang, Ruei-Jie Jeng, Chen-Ming Lin, Ding-Sian Cai, Chun-Yi Fang
  • Patent number: 8410707
    Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: April 2, 2013
    Assignee: UPEC Electronics Corp.
    Inventors: Chia-Shen Teng, Tze-Ching Tung, Chun-Ming Chuang
  • Publication number: 20110080099
    Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: UPEC ELECTRONICS CORP.
    Inventors: Chia-Shen Teng, Tze-Ching Tung, Chun-Ming Chuang