Patents by Inventor Liang Chang

Liang 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: 20240150192
    Abstract: A semiconductor device with different configurations of gate structures and a method of fabricating the same are disclosed. The method includes forming a fin structure on a substrate, forming a gate opening on the fin structure, forming a metallic oxide layer within the gate opening, forming a first dielectric layer on the metallic oxide layer, forming a second dielectric layer on the first dielectric layer, forming a work function metal (WFM) layer on the second dielectric layer, and forming a gate metal fill layer on the WFM layer. The forming the first dielectric layer includes depositing an oxide material with an oxygen areal density less than an oxygen areal density of the metallic oxide layer.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsiang-Pi CHANG, Chung-Liang Cheng, I-Ming Chang, Yao-Sheng Huang, Huang-Lin Chao
  • Publication number: 20240155082
    Abstract: A body-worn camera and an operation method thereof are provided, and the body-worn camera a central processing unit, a video recording module, a turntable, and a main button. The video recording module is electrically connected to the central processing unit. The turntable is electrically connected to the central processing unit. The main button is electrically connected to the central processing unit. After the video recording module completes recording a video, when the central processing unit receives a category mode signal from the turntable and receives a category name confirmation signal from the main button, the central processing unit executes a video tagging program, and the video tagging program saves a corresponding relationship between a category name and the video.
    Type: Application
    Filed: July 11, 2023
    Publication date: May 9, 2024
    Inventors: HSIEN-YANG CHIANG, TA-WEI CHANG, CHENG-LIANG HUANG, YEH-SHENG CHEN
  • Publication number: 20240153719
    Abstract: An operation-indication mode switching structure, a circuit, and a method for operating the same are provided. The operation-indication mode switching structure is disposed on a housing of a device, and includes a switching mechanism that is used to switch multiple operation-indication modes. The switching mechanism is selectively connected with one of multiple signal terminals. When the switching mechanism is manipulated to switch to one of the operation-indication modes, a control unit of the device receives an operation-indication mode switching signal generated by the switching mechanism conducting or circuit-shorting one of the multiple signal terminals. A corresponding operation-indication mode that is a covert mode, a stealth mode, or a normal mode can be determined. The control unit is used to control an indication function of the device according to the operation-indication mode that is switched to.
    Type: Application
    Filed: July 18, 2023
    Publication date: May 9, 2024
    Inventors: HSIEN-YANG CHIANG, TA-WEI CHANG, CHENG-LIANG HUANG, YEH-SHENG CHEN
  • Patent number: 11978677
    Abstract: In an embodiment, a method includes: placing a wafer on an implanter platen, the wafer including alignment marks; measuring a position of the wafer by measuring positions of the alignment marks with one or more cameras; determining an angular displacement between the position of the wafer and a reference position of the wafer; and rotating the implanter platen by the angular displacement.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 7, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Cheng Chen, Chih-Kai Yang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11978674
    Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a first source/drain epitaxial feature formed over a substrate, a second source/drain epitaxial feature formed over the substrate, two or more semiconductor layers disposed between the first source/drain epitaxial feature and the second source/drain epitaxial feature, a gate electrode layer surrounding a portion of one of the two or more semiconductor layers, a first dielectric region disposed in the substrate and in contact with a first side of the first source/drain epitaxial feature, and a second dielectric region disposed in the substrate and in contact with a first side of the second source/drain epitaxial feature, the second dielectric region being separated from the first dielectric region by a substrate.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: May 7, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: I-Ming Chang, Jung-Hung Chang, Chung-Liang Cheng, Hsiang-Pi Chang, Yao-Sheng Huang, Huang-Lin Chao
  • Publication number: 20240145596
    Abstract: A device includes a fin extending from a semiconductor substrate; a gate stack over the fin; a first spacer on a sidewall of the gate stack; a source/drain region in the fin adjacent the first spacer; an inter-layer dielectric layer (ILD) extending over the gate stack, the first spacer, and the source/drain region, the ILD having a first portion and a second portion, wherein the second portion of the ILD is closer to the gate stack than the first portion of the ILD; a contact plug extending through the ILD and contacting the source/drain region; a second spacer on a sidewall of the contact plug; and an air gap between the first spacer and the second spacer, wherein the first portion of the ILD extends across the air gap and physically contacts the second spacer, wherein the first portion of the ILD seals the air gap.
    Type: Application
    Filed: January 2, 2024
    Publication date: May 2, 2024
    Inventors: Su-Hao Liu, Kuo-Ju Chen, Kai-Hsuan Lee, I-Hsieh Wong, Cheng-Yu Yang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo, Syun-Ming Jang, Meng-Han Chou
  • Publication number: 20240145398
    Abstract: A carrier structure is provided, in which at least one positioning area is defined on a chip-placement area of a package substrate, and at least one alignment portion is disposed on the positioning area. Therefore, the precision of manufacturing the alignment portion is improved by disposing the positioning area on the chip-placement area, such that the carrier structure can provide a better alignment mechanism for the chip placement operation.
    Type: Application
    Filed: December 8, 2022
    Publication date: May 2, 2024
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Cheng-Liang HSU, Wan-Rou CHEN, Hsin-Yin CHANG, Tsung-Li LIN, Hsiu-Jung LI, Chiu-Lien LI, Fu-Quan XU, Yi-Wen LIU, Chih-Chieh SUN
  • Patent number: 11973303
    Abstract: A laser apparatus includes at least one electro-optic (EO) medium through which a polarized laser beam passes for N times, forming a plurality of first-pass to Nth-pass beams, by reflecting the polarized laser beam from at least one reflection mirror, and a power supplier configured to alternately provide a 1/N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to the EO medium, ? being a wavelength of the polarized laser beam. The at least one EO medium is tilted at angle ? and/or angle ? with respect to one of the plurality of first-pass to Nth-pass beams. The at least one EO medium comprises a M number of EO mediums, and the power supplier is configured to alternately provide a 1/M*N of a half-wave (?/2) or quarter-wave (?/4) voltage and remove the voltage to each of the M number of EO mediums.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: April 30, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Liang Chang, Fangqin Li, Riccardo Leto
  • Patent number: 11969752
    Abstract: The present invention discloses an organic polymer film and a manufacturing method thereof. The organic polymer film is mainly manufactured by the following steps. Firstly, the step (A) provides a xylene precursor and a substrate, and the step (B) places the substrate inside of a plasma equipment. After that, the step (C) evacuates the plasma equipment while introducing a carrier gas which carries vapor of the xylene precursor, and the step (D) turns on a pulse power supply system of the plasma equipment, generating a short pulse for plasma ignition. Finally, the step (E) forms the organic polymer film on the substrate. In the aforementioned steps, the frequency of the short pulse plasma is between 1 Hz˜10,000 Hz, and the pulse period of the short pulse plasma is between 1 ?s˜60 ?s.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 30, 2024
    Assignee: FENG CHIA UNIVERSITY
    Inventors: Ping-Yen Hsieh, Xuan-Xuan Chang, Ying-Hung Chen, Chu-Liang Ho
  • Patent number: 11973110
    Abstract: A semiconductor structure includes a substrate and a first capacitor. The substrate includes an active region. The first capacitor is over the substrate and free from overlapping the active region from a top view perspective.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: April 30, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Che-Yuan Chang, Hui-Zhong Zhuang, Chih-Liang Chen
  • Patent number: 11973050
    Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes an interconnect structure overlying a semiconductor substrate and comprising a conductive wire. A passivation structure overlies the interconnect structure. An upper conductive structure overlies the passivation structure and comprises a first conductive layer, a dielectric layer, and a second conductive layer. The first conductive layer is disposed between the dielectric layer and the passivation structure. The second conductive layer extends along a top surface of the dielectric layer and penetrates through the first conductive layer and the passivation structure to the conductive wire.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Yu Lin, Yao-Wen Chang, Chia-Wen Zhong, Yen-Liang Lin
  • Patent number: 11973027
    Abstract: A semiconductor device and a method of forming the same are provided. The semiconductor device includes a substrate, a gate structure, a dielectric structure and a contact structure. The substrate has source/drain (S/D) regions. The gate structure is on the substrate and between the S/D regions. The dielectric structure covers the gate structure. The contact structure penetrates through the dielectric structure to connect to the S/D region. A lower portion of a sidewall of the contact structure is spaced apart from the dielectric structure by an air gap therebetween, while an upper portion of the sidewall of the contact structure is in contact with the dielectric structure.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Pei-Yu Chou, Jr-Hung Li, Liang-Yin Chen, Su-Hao Liu, Tze-Liang Lee, Meng-Han Chou, Kuo-Ju Chen, Huicheng Chang, Tsai-Jung Ho, Tzu-Yang Ho
  • Publication number: 20240133918
    Abstract: In a method for obtaining the equivalent oxide thickness of a dielectric layer, a first semiconductor capacitor including a first silicon dioxide layer and a second semiconductor capacitor including a second silicon dioxide layer are provided and a modulation voltage is applied to the semiconductor capacitors to measure a first scanning capacitance microscopic signal and a second scanning capacitance microscopic signal. According to the equivalent oxide thicknesses of the silicon dioxide layers and the scanning capacitance microscopic signals, an impedance ratio is calculated. The modulation voltage is applied to a third semiconductor capacitor including a dielectric layer to measure a third scanning capacitance microscopic signal. Finally, the equivalent oxide thickness of the dielectric layer is obtained according to the equivalent oxide thickness of the first silicon dioxide layer, the first scanning capacitance microscopic signal, third scanning capacitance microscopic signal, and the impedance ratio.
    Type: Application
    Filed: April 12, 2023
    Publication date: April 25, 2024
    Inventors: MAO-NAN CHANG, CHI-LUN LIU, HSUEH-LIANG CHOU, YI-SHAN WU, CHIAO-JUNG LIN, YU-HSUN HSUEH
  • Publication number: 20240136184
    Abstract: A method of forming a semiconductor device includes forming a photoresist layer over a mask layer, patterning the photoresist layer, and forming an oxide layer on exposed surfaces of the patterned photoresist layer. The mask layer is patterned using the patterned photoresist layer as a mask.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: Ching-Yu Chang, Jei Ming Chen, Tze-Liang Lee
  • Publication number: 20240136463
    Abstract: This disclosure discloses an optical sensing device. The device includes a carrier body; a first light-emitting device disposed on the carrier body; and a light-receiving device including a group III-V semiconductor material disposed on the carrier body, including a light-receiving surface having an area, wherein the light-receiving device is capable of receiving a first received wavelength having a largest external quantum efficiency so the ratio of the largest external quantum efficiency to the area is ?13.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 25, 2024
    Applicant: EPISTAR CORPORATION
    Inventors: Yi-Chieh LIN, Shiuan-Leh LIN, Yung-Fu CHANG, Shih-Chang LEE, Chia-Liang HSU, Yi HSIAO, Wen-Luh LIAO, Hong-Chi SHIH, Mei-Chun LIU
  • Publication number: 20240136423
    Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of: forming a buffer layer on a substrate; forming a first barrier layer on the buffer layer; forming a first hard mask on the first barrier layer; removing the first hard mask and the first barrier layer to form a recess; forming a second barrier layer in the recess; and forming a p-type semiconductor layer on the second barrier layer.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 25, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Ming Chang, Che-Hung Huang, Wen-Jung Liao, Chun-Liang Hou
  • Publication number: 20240136946
    Abstract: This patent presents a multidimensional space vector modulation (MDSVM) circuit formed by coupling a half-bridge logic control circuit not directly coupled to electronic components with at least three half-bridge logic control circuits coupled to electronic components. The half-bridge logic control circuit not directly coupled with any electronic components can form a full-bridge circuit with any other half-bridge logic control circuit coupled with electronic components. Therefore, users can further control the voltage difference between both ends of each electronic component separately and then individually control the strength and direction of current flowing through each electronic component and solving the problem of control attributed to the complexity of prior art.
    Type: Application
    Filed: April 10, 2023
    Publication date: April 25, 2024
    Applicant: TENSOR TECH CO., LTD
    Inventors: Shang Jung LEE, Po-Hsun YEN, Yung-Cheng CHANG, Sung-Liang HOU
  • Publication number: 20240128353
    Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of: forming a buffer layer on a substrate; forming a first barrier layer on the buffer layer; forming a first hard mask on the first barrier layer; removing the first hard mask and the first barrier layer to form a recess; forming a second barrier layer in the recess; and forming a p-type semiconductor layer on the second barrier layer.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 18, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Ming Chang, Che-Hung Huang, Wen-Jung Liao, Chun-Liang Hou
  • Publication number: 20240124844
    Abstract: The present disclosure provides a method for preparing a composition including mesenchymal stem cells, extracellular vesicles produced by the mesenchymal stem cells, and growth factors, the composition prepared by the method, and use of the composition for treating arthritis. The composition of the present disclosure achieves the effect of treating arthritis through various efficacy experiments.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 18, 2024
    Inventors: Chia-Hsin Lee, Po-Cheng Lin, Yong-Cheng Kao, Ming-Hsi Chuang, Chun-Hung Chen, Chao-Liang Chang, Kai-Ling Zhang
  • Patent number: 11960253
    Abstract: A system and a method for parameter optimization with adaptive search space and a user interface using the same are provided. The system includes a data acquisition unit, an adaptive adjustment unit and an optimization search unit. The data acquisition unit obtains a set of executed values of several operating parameters and a target parameter. The adaptive adjustment unit includes a parameter space transformer and a search range definer. The parameter space transformer performs a space transformation on a parameter space of the operating parameters according to the executed values. The search range definer defines a parameter search range in a transformed parameter space based on the sets of the executed values. The optimization search unit takes the parameter search range as a limiting condition and takes optimizing the target parameter as a target to search for a set of recommended values of the operating parameters.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 16, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Yu Huang, Chun-Fang Chen, Hong-Chi Ku, Te-Ming Chen, Chien-Liang Lai, Sen-Chia Chang