Patents by Inventor Shih-Yuan Chang

Shih-Yuan 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: 20250040214
    Abstract: A semiconductor fabrication method includes: forming an epitaxial stack including at least one sacrificial epitaxial layer and at least one channel epitaxial layer; forming a plurality of fins in the epitaxial stack; performing tuning operations to prevent a width of the sacrificial epitaxial layer expanding beyond a width of the channel epitaxial layer during operations to form isolation features; forming the isolation features between the plurality of fins, wherein the width of the sacrificial epitaxial layer does not expand beyond the width of the channel epitaxial layer; forming a sacrificial gate stack; forming gate sidewall spacers on sidewalls of the sacrificial gate stack; forming inner spacers around the sacrificial epitaxial layer and the channel epitaxial layer; forming source/drain features; removing the sacrificial gate stack and sacrificial epitaxial layer; and forming a replacement metal gate, wherein the metal gate is shielded from the source/drain features.
    Type: Application
    Filed: July 27, 2023
    Publication date: January 30, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuei-Yu Kao, Shih-Yao Lin, Chiung-Yu Cho, Po-Yuan Tseng, Min-Chiao Lin, Chen-Ping Chen, Chih-Han Lin, Ming-Ching Chang
  • Publication number: 20250027998
    Abstract: An electronic device and a battery power displaying method of the electronic device are provided. The method includes following steps. Estimated power of a battery module in the electronic device is obtained. A slope parameter is adjusted according to a charging and discharging state of the electronic device and the estimated power. The estimated power is converted into mapping power based on the slope parameter. The mapping power is disposed on a user interface.
    Type: Application
    Filed: December 5, 2023
    Publication date: January 23, 2025
    Applicant: ASUSTeK COMPUTER INC.
    Inventors: Shih-Teng Chiu, Hui-Hsiang Lin, Chih-Hung Lee, Chia-Yuan Chang, Po-Chun Chen, Chih-Hsiang Chiu
  • Patent number: 12202752
    Abstract: A method is provided for processing wastewater having organics even together with high-concentration ammonia-nitrogen, using an apparatus, comprising a catalyzation tank and a subsequent neutralization tank. Organic ammonia-nitrogen wastewater is introduced into tank for reaction without being pre-adjusted by acidic agent or mixing with other additives. A persulfate oxidant is used to process high-efficiency oxidative degradation for ammonia-nitrogen and toxic organics in wastewater through catalyzing oxidation of ultraviolet activation, tiny-amount-transition-metal catalyzation, or both of them, for simultaneous reductions or complete removals of ammonia-nitrogen and organic carbon contents. After neutralization according to actual needs, the final output is complied with biological treatment conditions, discharged-water quality standards, or recycled-water standards.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: January 21, 2025
    Assignee: CPC Corporation, Taiwan
    Inventors: Yi-Fong Huang, Shih-Yuen Chang, I-Cheng Chou, Mao-Yuan Tu, Guo-Hsu Lu
  • Patent number: 11552113
    Abstract: A moiré pattern imaging device includes a light-transmitting film and an optical sensor. The light-transmitting film includes a plurality of microlenses, and a light-incident surface and a light-exit surface opposite to each other. The plurality of microlenses are disposed on the light-incident surface, the light-exit surface or a combination thereof, and the plurality of microlenses are arranged in two dimensions to form a microlens array. The optical sensor includes a photosurface. The photosurface faces the light-exit surface of the light-transmitting film, the photosurface is provided with a plurality of pixels, and the plurality of pixels are arranged in two dimensions to form a pixel array. The microlens array and the pixel array correspondingly form a moiré pattern effect to produce an imaging magnification effect, and the photosurface of the optical sensor senses light and forms a moiré pattern magnification image.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 10, 2023
    Assignee: inFilm Optoelectronic Inc.
    Inventors: Chih-Hsiung Lin, Shih-Yuan Chang
  • Patent number: 11209294
    Abstract: A thin proximity sensing device includes a transparent plate and a light sensor. The transparent plate includes a first surface and a second surface. The first surface is provided with a light source and a light entering area. The light source is arranged on the first surface. The second surface is provided with a reflector. The light sensor includes a light receiving area. The light sensor is arranged on the transparent plate. The reflector is capable of correspondingly reflecting specific incident light. The specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to the reflector. After reflected by the reflector, the specific incident light is reflected one or more times within the thickness of the transparent plate and is transmitted to the light sensor.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 28, 2021
    Assignee: inFilm Optoelectronic Inc.
    Inventors: Chih-Hsiung Lin, Shih-Yuan Chang
  • Publication number: 20210111206
    Abstract: A moiré pattern imaging device includes a light-transmitting film and an optical sensor. The light-transmitting film includes a plurality of microlenses, and a light-incident surface and a light-exit surface opposite to each other. The plurality of microlenses are disposed on the light-incident surface, the light-exit surface or a combination thereof, and the plurality of microlenses are arranged in two dimensions to form a microlens array. The optical sensor includes a photosurface. The photosurface faces the light-exit surface of the light-transmitting film, the photosurface is provided with a plurality of pixels, and the plurality of pixels are arranged in two dimensions to form a pixel array. The microlens array and the pixel array correspondingly form a moiré pattern effect to produce an imaging magnification effect, and the photosurface of the optical sensor senses light and forms a moiré pattern magnification image.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Applicant: inFilm Optoelectronic Inc.
    Inventors: Chih-Hsiung LIN, Shih-Yuan CHANG
  • Publication number: 20200408576
    Abstract: A thin proximity sensing device includes a transparent plate and a light sensor. The transparent plate includes a first surface and a second surface. The first surface is provided with a light source and a light entering area. The light source is arranged on the first surface. The second surface is provided with a reflector. The light sensor includes a light receiving area. The light sensor is arranged on the transparent plate. The reflector is capable of correspondingly reflecting specific incident light. The specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to the reflector. After reflected by the reflector, the specific incident light is reflected one or more times within the thickness of the transparent plate and is transmitted to the light sensor.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 31, 2020
    Applicant: inFilm Optoelectronic Inc.
    Inventors: Chih-Hsiung LIN, Shih-Yuan CHANG
  • Patent number: 10442312
    Abstract: An air-charging unmanned aerial vehicle set is provided, including a charging unmanned aerial vehicle and a functional unmanned aerial vehicle. The charging unmanned aerial vehicle includes a first unmanned aerial vehicle body, a plurality of first propeller units, a rotation stage, a first battery slot and a second battery slot. The first propeller units are disposed on the first unmanned aerial vehicle body. The rotation stage is disposed on the first unmanned aerial vehicle body. The first battery slot and the second battery slot are disposed on the rotation stage. The functional unmanned aerial vehicle includes a second unmanned aerial vehicle body, a plurality of second propeller units, a third battery slot and a battery cover. The second propeller units, the third battery slot and the battery cover are disposed on the second unmanned aerial vehicle body.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 15, 2019
    Assignee: WISTRON CORP.
    Inventors: Chen-Yi Liang, Yung Chen Chang, Shih-Yuan Chang
  • Publication number: 20190084432
    Abstract: An air-charging unmanned aerial vehicle set is provided, including a charging unmanned aerial vehicle and a functional unmanned aerial vehicle. The charging unmanned aerial vehicle includes a first unmanned aerial vehicle body, a plurality of first propeller units, a rotation stage, a first battery slot and a second battery slot. The first propeller units are disposed on the first unmanned aerial vehicle body. The rotation stage is disposed on the first unmanned aerial vehicle body. The first battery slot and the second battery slot are disposed on the rotation stage. The functional unmanned aerial vehicle includes a second unmanned aerial vehicle body, a plurality of second propeller units, a third battery slot and a battery cover. The second propeller units, the third battery slot and the battery cover are disposed on the second unmanned aerial vehicle body.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 21, 2019
    Inventors: Chen-Yi LIANG, Yung Chen CHANG, Shih-Yuan CHANG
  • Publication number: 20180024316
    Abstract: An wide-angle imaging lens module satisfies: 0.84<|f1|/f<2.28; 0.52<f2/f<1.26; 0.49<f3/f<1.12; 0.32<|f4|/f<0.70; FOV>100?; and TTL/ImagH<2.80, where f1 denotes a focal length of a first lens, f2 denotes a focal length of a second lens, f3 denotes a focal length of a third lens, f4 denotes a focal length of a fourth lens, f denotes a total system focal length of the wide-angle imaging lens module, FOV denotes a total system field-of-view angle of the wide-angle imaging lens module, TTL denotes a system length of the wide-angle imaging lens module, and ImagH denotes a maximum image height of the wide-angle imaging lens module.
    Type: Application
    Filed: November 10, 2016
    Publication date: January 25, 2018
    Inventor: Shih-Yuan Chang
  • Publication number: 20170269789
    Abstract: An optical touch device using imaging module according the present invention includes a guide light plate, at least a light source, an imaging module, at least a photosensitive unit and a microprocessor; the imaging module has at least an image reflective curved surface to image multiple contact positions to at least a photosensitive unit conveniently to form image information corresponding to the multiple contact positions so as to allow the microprocessor to generate corresponding touch signals; the images at where an object contacts the guide light plate are utilized directly to generate the touch signals instead of detecting attenuation signal of frustrated total internal reflection resulting from the object contacting the guide light plate; due to the light in the guide light plate is employed to conduct the total internal reflection propagation to attain touch control function, components needed in the touch device is reduced and the fabrication cost is saved largely.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 21, 2017
    Applicant: inFilm Optoelectronic Inc.
    Inventors: CHIH-HSIUNG LIN, SHIH-YUAN CHANG
  • Publication number: 20170199360
    Abstract: An imaging zoom lens system includes a first lens group, a second lens group and a third lens group in sequence along an optical axis of the imaging zoom lens. Through designs of structural relationships among the first to third lens groups and relevant optical parameters, the imaging zoom lens system is able to increase a focusing speed at a telephoto end to approach a focusing speed at a wide angle end.
    Type: Application
    Filed: July 1, 2016
    Publication date: July 13, 2017
    Inventor: Shih-Yuan Chang
  • Patent number: 9703082
    Abstract: An imaging zoom lens system includes a first lens group, a second lens group and a third lens group in sequence along an optical axis of the imaging zoom lens. Through designs of structural relationships among the first to third lens groups and relevant optical parameters, the imaging zoom lens system is able to increase a focusing speed at a telephoto end to approach a focusing speed at a wide angle end.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: July 11, 2017
    Assignee: Tan Cian Technology Co., Ltd.
    Inventor: Shih-Yuan Chang
  • Publication number: 20170192203
    Abstract: An imaging zoom lens includes a first lens group, a second lens group and a third lens group in sequence along an optical axis of the imaging zoom lens. With the structural relationship of the first to third lens group and relevant optical parameters, the imaging zoom lens may be as miniaturized as possible while maintaining good optical performance.
    Type: Application
    Filed: June 6, 2016
    Publication date: July 6, 2017
    Inventor: Shih-Yuan Chang
  • Patent number: 9377605
    Abstract: A wide angle optical lens system includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a negative refractive power; a second lens element with a positive refractive power; a third lens element with a negative refractive power; a fourth lens element with a refractive power; a fifth lens element with a positive refractive power; a sixth lens element with a negative refractive power, wherein a focal length of the wide angle optical lens system is f, a focal length of the fifth lens element is f5, a radius of curvature of an object-side surface of the third lens element is R5, a radius of curvature of an image-side surface of the third lens element is R6, the following conditions are satisfied: 1.0<f/f5<3.8; ?3.5<(R6+R5)/(R6?R5)<0.6.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 28, 2016
    Assignee: Glory Science Co., Ltd.
    Inventors: Feng-Chao Chung, Shih-Yuan Chang, Kun-Ti Liu
  • Patent number: 9201217
    Abstract: An imaging optical lens assembly includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a positive refractive power; a second lens element with a refractive power; a third lens element with a refractive power; a fourth lens element with a refractive power; a fifth lens element with a negative refractive power having an image-side surface being convex near an optical axis; wherein the image-side surface of the fifth lens element is formed with at least two inflection points, including a first inflection point and a second inflection point further away from the optical axis, a vertical distance from the first inflection point to the optical axis is Y_inf1, a vertical distance from the second inflection point to the optical axis is Y_inf2, satisfying: 1.7<Y_inf2/Y_inf1<2.1.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: December 1, 2015
    Assignee: Glory Science Co., Ltd.
    Inventors: Feng-Chao Chung, Shih-Yuan Chang, Kun-Ti Liu
  • Patent number: 9057868
    Abstract: An optical lens system includes an aperture stop and an optical assembly, the optical assembly includes, in order from an object side to an image side: a first lens element with a positive refractive power; a second lens element with a negative refractive power; a third lens element with a positive refractive power; a fourth lens element with a positive refractive power; a fifth lens element with a negative refractive power; the aperture stop is located between an image-side surface of the first lens element and an object to be photographed. The optical lens system satisfies the following conditions: 0.55<TD/CA52<0.73; 20<Vd3?Vd2<40; 80<FOV<100; and 1.0<TL/ImgH<1.6.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: June 16, 2015
    Assignee: GLORY SCIENCE CO., LTD.
    Inventors: Feng-Chao Chung, Kun-Ti Liu, Shih-Yuan Chang
  • Publication number: 20150131170
    Abstract: An imaging optical lens assembly includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a positive refractive power; a second lens element with a refractive power; a third lens element with a refractive power; a fourth lens element with a refractive power; a fifth lens element with a negative refractive power having an image-side surface being convex near an optical axis; wherein the image-side surface of the fifth lens element is formed with at least two inflection points, including a first inflection point and a second inflection point further away from the optical axis, a vertical distance from the first inflection point to the optical axis is Y_inf1, a vertical distance from the second inflection point to the optical axis is Y_inf2, satisfying: 1.7<Y_inf2/Y_inf1<2.1.
    Type: Application
    Filed: September 24, 2014
    Publication date: May 14, 2015
    Inventors: Feng-Chao CHUNG, Shih-Yuan CHANG, Kun-Ti LIU
  • Publication number: 20150098135
    Abstract: A wide angle optical lens system includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a negative refractive power; a second lens element with a positive refractive power; a third lens element with a negative refractive power; a fourth lens element with a refractive power; a fifth lens element with a positive refractive power; a sixth lens element with a negative refractive power, wherein a focal length of the wide angle optical lens system is f, a focal length of the fifth lens element is f5, a radius of curvature of an object-side surface of the third lens element is R5, a radius of curvature of an image-side surface of the third lens element is R6, the following conditions are satisfied: 1.0<f/f5<3.8; ?3.5<(R6+R5)/(R6?R5)<0.6.
    Type: Application
    Filed: September 9, 2014
    Publication date: April 9, 2015
    Inventors: Feng-Chao CHUNG, Shih-Yuan CHANG, Kun-Ti LIU
  • Patent number: 8908291
    Abstract: An optical lens system, sequentially arranged from an object side to an image side along an optical axis, includes: a stop, a first lens element with positive refractive power having a convex object-side surface, a second lens element with negative refractive power, a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface, and a fourth lens element with negative refractive power having a concave image-side surface with both being aspheric. Furthermore, the optical lens system satisfies conditions related to increase the field of view and reduce the total length as well as the sensitivity of assembly tolerance of the optical lens system.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 9, 2014
    Assignee: Glory Science Co., Ltd.
    Inventors: Feng-Chao Chung, Shih-Yuan Chang