Patents by Inventor Chih-Hsiang Chang

Chih-Hsiang 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: 20240126006
    Abstract: A backlight module comprises an outer frame unit, a light guide plate arranged in the outer frame unit, a light-emitting unit, a plurality of adhesives for fixing the light-emitting unit on the light guide plate, and a plurality of abutting structures. The light-emitting unit includes a flexible circuit board and a plurality of light-emitting elements arranged on the flexible circuit board at intervals. Part of the flexible circuit board is deformed at a specific position by the abutting structures, and the position of the light-emitting elements relative to the light guide plate can be adjusted. Thereby, the light-emitting elements can be aligned with the light incident surface of the light guide plate, prevent light from leaking from the light emitting surface of the light guide plate close to the light-emitting elements, and reduce the generation of bright lines and improving the overall uniformity. The present invention also provides a display device including the backlight module.
    Type: Application
    Filed: September 14, 2023
    Publication date: April 18, 2024
    Applicant: Radiant Opto-Electronics Corporation
    Inventors: Chih-Hsiang CHEN, Cheng-Te CHANG
  • Publication number: 20240121523
    Abstract: A light-adjusting device having first regions and second regions is provided. The light-adjusting device includes pillars that form several groups of meta structures. The groups of meta structures correspond to the first regions, and from a top view, the first regions and the second regions are arranged in a checkerboard pattern.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 11, 2024
    Inventors: Kai-Hao CHANG, Chun-Yuan WANG, Shin-Hong KUO, Zong-Ru TU, Po-Hsiang WANG, Chih-Ming WANG
  • Patent number: 11942652
    Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: March 26, 2024
    Assignees: Futaijing Precision Electronics (Yantai) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chen-Ting Kao, Chi-Cheng Wen, Yu-Sheng Chang, Chih-Cheng Lee, Chiung-Hsiang Wu, Sheng-Li Yen, Yu-Cheng Zhang, Chang-Ju Hsieh, Chen Chao
  • Publication number: 20240096781
    Abstract: A package structure including a semiconductor die, a redistribution circuit structure and an electronic device is provided. The semiconductor die is laterally encapsulated by an insulating encapsulation. The redistribution circuit structure is disposed on the semiconductor die and the insulating encapsulation. The redistribution circuit structure includes a colored dielectric layer, inter-dielectric layers and redistribution conductive layers embedded in the inter-dielectric layers. The electronic device is disposed over the colored dielectric layer and electrically connected to the redistribution circuit structure.
    Type: Application
    Filed: March 20, 2023
    Publication date: March 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Ti Lu, Hao-Yi Tsai, Chia-Hung Liu, Yu-Hsiang Hu, Hsiu-Jen Lin, Tzuan-Horng Liu, Chih-Hao Chang, Bo-Jiun Lin, Shih-Wei Chen, Hung-Chun Cho, Pei-Rong Ni, Hsin-Wei Huang, Zheng-Gang Tsai, Tai-You Liu, Po-Chang Shih, Yu-Ting Huang
  • Publication number: 20240096800
    Abstract: A semiconductor device includes first and second active regions extending in parallel in a substrate, a plurality of conductive patterns, each conductive pattern of the plurality of conductive patterns extending on the substrate across each of the first and second active regions, and a plurality of metal lines, each metal line of the plurality of metal lines overlying and extending across each of the first and second active regions. Each conductive pattern of the plurality of conductive patterns is electrically connected in parallel with each metal line of the plurality of metal lines.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Fei Fan DUAN, Fong-yuan CHANG, Chi-Yu LU, Po-Hsiang HUANG, Chih-Liang CHEN
  • Publication number: 20240096986
    Abstract: A method includes forming a first gate spacer and a second gate spacer on a sidewall of a first gate structure. The first gate spacer is between the second gate spacer and the first gate structure. A first interlayer dielectric (ILD) layer is formed to surround the first gate spacer, the second gate spacer, and the first gate structure. A portion of the second gate spacer and a portion of the first ILD layer are removed simultaneously. A top surface of the second gate spacer is lower than a top surface of the first ILD layer.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chung-Ting LI, Jen-Hsiang LU, Chih-Hao CHANG
  • Publication number: 20240086612
    Abstract: An IC device includes first through third rows of fin field-effect transistors (FinFETs), wherein the second row is between and adjacent to each of the first and third rows, the FinFETs of the first row are one of an n-type or p-type, the FinFETs of the second and third rows are the other of the n-type or p-type, the FinFETs of the first and third rows include a first total number of fins, and the FinFETs of the second row include a second total number of fins one greater or fewer than the first total number of fins.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Inventors: Po-Hsiang HUANG, Fong-Yuan CHANG, Clement Hsingjen WANN, Chih-Hsin KO, Sheng-Hsiung CHEN, Li-Chun TIEN, Chia-Ming HSU
  • Publication number: 20240080376
    Abstract: A task dispatching method for EPD tag devices includes receiving a task command; the server system forwarding the task command to a target router to which the target EPD tag device is connected; the target router checking whether the target EPD tag device is currently connected thereto; when it is determined that the target EPD tag device is not currently connected to the target router, the target router notifying the server system that the target EPD tag device is offline; in response to receiving an online notification indicating that the target EPD tag device is connected to another router, the server system updating a connection list accordingly, and forwarding the task command to an updated target router; and when it is determined that the target EPD tag device is currently connected to the target router, the target router delivering the task command to the target EPD tag device.
    Type: Application
    Filed: April 27, 2023
    Publication date: March 7, 2024
    Inventors: Chih-Cheng Chang, Feng-Hsiang Chung, Yi-Bin Yu
  • Publication number: 20240077124
    Abstract: A non-metal spring includes two non-metal elastic units connected to each other and formed between two non-metal terminal rings. Each of the non-metal elastic units includes two intermediate rings intersecting each other, thereby providing two cross portions. The cross portions of each of the non-metal elastic units divide each of the intermediate rings into a first portion and a second portion. The first portions of the intermediate rings of one of the non-metal elastic units are connected to one of the terminal rings. The second portions of the intermediate rings of another one of the non-metal elastic units are connected to a remaining one of the terminal rings. The first portions of the intermediate rings of each of the non-metal elastic units are connected to the second portions of the intermediate rings of an adjacent one of the non-metal elastic units.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 7, 2024
    Inventors: CHIH-CHUNG SUN, KAI-HSIANG CHANG
  • Patent number: 11831278
    Abstract: A voltage-controlled oscillator device includes first and second voltage-controlled oscillators, a first switch group including two first switches, and a second switch group including two second switches. The first voltage-controlled oscillator includes a first inductor group, a first negative resistance circuit and a first voltage output terminal group. The second voltage-controlled oscillator includes a second inductor group, a second negative resistance circuit and a second voltage output terminal group. For the first switch group, first control terminals are electrically connected to the first voltage output terminal group, first input terminals are electrically connected to the second voltage output terminal group, first output terminals are electrically connected.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: November 28, 2023
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang Chang, Yu Lee, Hua-Shan Hu, Ching-Yuan Yang
  • Publication number: 20230371263
    Abstract: In some embodiments, the present disclosure relates to a method of forming an integrated chip including forming a ferroelectric layer over a bottom electrode layer, forming a top electrode layer over the ferroelectric layer, performing a first removal process to remove peripheral portions of the bottom electrode layer, the ferroelectric layer, and the top electrode layer, and performing a second removal process using a second etch that is selective to the bottom electrode layer and the top electrode layer to remove portions of the bottom electrode layer and the top electrode layer, so that after the second removal process the ferroelectric layer has a surface that protrudes past a surface of the bottom electrode layer and the top electrode layer.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Inventors: Chih-Hsiang Chang, Kuo-Chi Tu, Sheng-Hung Shih, Wen-Ting Chu, Tzu-Yu Chen, Fu-Chen Chang
  • Publication number: 20230361039
    Abstract: A method of manufacturing an interconnect structure includes forming an opening through a dielectric layer. The opening exposes a top surface of a first conductive feature. The method further includes forming a barrier layer on sidewalls of the opening, passivating the exposed top surface of the first conductive feature with a treatment process, forming a liner layer over the barrier layer, and filling the opening with a conductive material.
    Type: Application
    Filed: July 13, 2023
    Publication date: November 9, 2023
    Inventors: Shu-Cheng Chin, Ming-Yuan Gao, Chen-Yi Niu, Yen-Chun Lin, Hsin-Ying Peng, Chih-Hsiang Chang, Pei-Hsuan Lee, Chi-Feng Lin, Chih-Chien Chi, Hung-Wen Su
  • Patent number: 11800720
    Abstract: The present disclosure, in some embodiments, relates to an integrated chip. The integrated chip includes a bottom electrode disposed over a substrate. A data storage structure is disposed on the bottom electrode and is configured to store a data state. A top electrode is disposed on the data storage structure. The top electrode has interior surfaces defining a recess within an upper surface of the top electrode. A masking layer contacts a bottom of the recess and extends to over the upper surface of the top electrode. An interconnect extends through the masking layer and to the top electrode. The interconnect is directly over the upper surface of the top electrode.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: October 24, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Yu Chen, Kuo-Chi Tu, Sheng-Hung Shih, Wen-Ting Chu, Chih-Hsiang Chang, Fu-Chen Chang
  • Publication number: 20230329128
    Abstract: A memory device includes a bottom electrode, a buffer element, a metal-containing oxide portion, a resistance switch element, and a top electrode. The buffer element is over the bottom electrode. The metal-containing oxide portion is over the buffer element, in which the metal-containing oxide portion has a same metal material as that of the buffer element. The resistance switch element is over the metal-containing oxide portion. The top electrode is over the resistance switch element.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsia-Wei CHEN, Chih-Hung PAN, Chih-Hsiang CHANG, Yu-Wen LIAO, Wen-Ting CHU
  • Patent number: 11785777
    Abstract: In some embodiments, the present disclosure relates to a method of forming an integrated chip including forming a ferroelectric layer over a bottom electrode layer, forming a top electrode layer over the ferroelectric layer, performing a first removal process to remove peripheral portions of the bottom electrode layer, the ferroelectric layer, and the top electrode layer, and performing a second removal process using a second etch that is selective to the bottom electrode layer and the top electrode layer to remove portions of the bottom electrode layer and the top electrode layer, so that after the second removal process the ferroelectric layer has a surface that protrudes past a surface of the bottom electrode layer and the top electrode layer.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: October 10, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsiang Chang, Kuo-Chi Tu, Sheng-Hung Shih, Wen-Ting Chu, Tzu-Yu Chen, Fu-Chen Chang
  • Publication number: 20230284540
    Abstract: A resistive memory device includes an ultrathin barrier layer disposed between the bottom electrode and the bottom electric contact to the memory device. The ultrathin barrier layer may reduce the overall step height of the resistive memory elements by 15% or more, including up to about 20% or more. The use of an ultrathin barrier layer may additionally improve the uniformity of the thickness of the dielectric etch stop layer that partially underlies and extends between the memory elements by at least about 15%. The use of an ultrathin barrier layer may result in improved manufacturability and provide reduced costs and higher yields for resistive memory devices, and may facilitate integration of resistive memory devices in advanced technology nodes.
    Type: Application
    Filed: June 29, 2022
    Publication date: September 7, 2023
    Inventors: Hsia-Wei Chen, Chih-Hsiang Chang, Yu-Wen Liao, Wen-Ting Chu
  • Patent number: 11742290
    Abstract: A method of manufacturing an interconnect structure includes forming an opening through a dielectric layer. The opening exposes a top surface of a first conductive feature. The method further includes forming a barrier layer on sidewalls of the opening, passivating the exposed top surface of the first conductive feature with a treatment process, forming a liner layer over the barrier layer, and filling the opening with a conductive material. The liner layer may include ruthenium.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: August 29, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Shu-Cheng Chin, Ming-Yuan Gao, Chen-Yi Niu, Yen-Chun Lin, Hsin-Ying Peng, Chih-Hsiang Chang, Pei-Hsuan Lee, Chi-Feng Lin, Chih-Chien Chi, Hung-Wen Su
  • Patent number: 11723294
    Abstract: A method for fabricating a memory device is provided. The method includes forming a bottom electrode layer over a substrate; forming a buffer layer over the bottom electrode layer; performing a surface treatment to a top surface of the buffer layer; depositing a resistance switch layer over the top surface of the buffer layer after performing the surface treatment; forming a top electrode over the resistance switch layer; and patterning the resistance switch layer into a resistance switch element below the top electrode.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: August 8, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsia-Wei Chen, Chih-Hung Pan, Chih-Hsiang Chang, Yu-Wen Liao, Wen-Ting Chu
  • Publication number: 20230198467
    Abstract: A voltage-controlled oscillator device includes first and second voltage-controlled oscillators, a first switch group including two first switches, and a second switch group including two second switches. The first voltage-controlled oscillator includes a first inductor group, a first negative resistance circuit and a first voltage output terminal group. The second voltage-controlled oscillator includes a second inductor group, a second negative resistance circuit and a second voltage output terminal group. For the first switch group, first control terminals are electrically connected to the first voltage output terminal group, first input terminals are electrically connected to the second voltage output terminal group, first output terminals are electrically connected.
    Type: Application
    Filed: August 11, 2022
    Publication date: June 22, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Hsiang CHANG, Yu LEE, Hua-Shan HU, Ching-Yuan YANG
  • Publication number: 20230066892
    Abstract: A production schedule estimation method and a production schedule estimation system are provided. The production schedule estimation method includes the following steps. Current-day work-in-process data, machine group cycle time data of a machine group, and productivity data of the machine group are obtained. The current-day work-in-process data, the cycle time data of the machine group, and the productivity data of the machine group are inputted into a prediction model. Current-day cycle time data and a current-day move volume for each of multiple stations in the machine group are calculated through the prediction model. And, current-day move data is calculated according to the current-day cycle time data and the current-day move volume for each of the multiple stations in the machine group.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 2, 2023
    Applicant: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Chih-Neng Liu, Chih-Chuen Huang, Chia-Jen Fu, Chih-Hsiang Chang