Patents by Inventor Chi-Feng Chang

Chi-Feng 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: 11974441
    Abstract: A 3D memory array in which epitaxial source/drain regions which are horizontally merged and vertically unmerged are used as source lines and bit lines and methods of forming the same are disclosed. In an embodiment, a memory array includes a first channel region over a semiconductor substrate; a first epitaxial region electrically coupled to the first channel region; a second epitaxial region directly over the first epitaxial region in a direction perpendicular to a major surface of the semiconductor substrate; a dielectric material between the first epitaxial region and the second epitaxial region, the second epitaxial region being isolated from the first epitaxial region by the dielectric material; a gate dielectric surrounding the first channel region; and a gate electrode surrounding the gate dielectric.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Bo-Feng Young, Sai-Hooi Yeong, Chih-Yu Chang, Chi On Chui, Yu-Ming Lin
  • Publication number: 20240127109
    Abstract: A federated learning method includes: providing importance parameters and performance parameters by client devices respectively to a central device, performing a training procedure by the central device, wherein the training procedure includes: selecting target devices from the client devices according to a priority order associated with the importance parameters, dividing the target devices into training groups according to a similarity of the performance parameters, notifying the target devices to perform iterations according to the training groups respectively to generate trained models, transmitting the trained models to the central device, and updating a global model based on the trained models, performing the training procedure again or outputting the global model to the client devices based on a convergence value of the global model and the number of times of performing the training procedure.
    Type: Application
    Filed: November 10, 2022
    Publication date: April 18, 2024
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Ping Feng WANG, Chiun Sheng HSU, Chi-Yuan CHOU, Fu-Chiang CHANG
  • Publication number: 20240112688
    Abstract: The present disclosure provides an audio compression device, an audio compressing system and an audio compression method. The audio compression device comprises a first transceiver and a first processor. The first transceiver is connected to the first processor. The processor obtains an audio signal and an available bandwidth, and the processor performs an audio compression encoding on the audio signal to obtain a sample audio signal, and then compares with the audio signal and the sample audio signal to generate a residual signal, and the residual signal is transmitted according to the available bandwidth. The audio signal can be completely transmitted to an audio decompression device to reduce the distortion of the audio signal.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 4, 2024
    Applicant: SAVITECH CORP.
    Inventors: Sing-Ban Robert TIEN, Wen-Wei KANG, Wu-Lin CHANG, Chi-Feng HUANG, Lee-Chang PANG
  • Patent number: 11944412
    Abstract: A blood pressure detection device manufactured by a semiconductor process includes a substrate, a microelectromechanical element, a gas-pressure-sensing element, a driving-chip element, an encapsulation layer and a valve layer. The substrate includes inlet apertures. The microelectromechanical element and the gas-pressure-sensing element are stacked and integrally formed on the substrate. The encapsulation layer is encapsulated and positioned on the substrate. A flowing-channel space is formed above the microelectromechanical element and the gas-pressure-sensing element. The encapsulation layer includes an outlet aperture in communication with an airbag. The driving-chip element controls the microelectromechanical element, the gas-pressure-sensing element and valve units to transport gas.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 2, 2024
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ying-Lun Chang, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Wei-Ming Lee, Chun-Yi Kuo, Tsung-I Lin
  • Publication number: 20240079472
    Abstract: The present disclosure provides a semiconductor device and a method for forming a semiconductor device. The semiconductor device includes a substrate, and a first gate dielectric stack over the substrate, wherein the first gate dielectric stack includes a first ferroelectric layer, and a first dielectric layer coupled to the first ferroelectric layer, wherein the first ferroelectric layer includes a first portion made of a ferroelectric material in orthorhombic phase, a second portion made of the ferroelectric material in monoclinic phase, and a third portion made of the ferroelectric material in tetragonal phase, wherein a total volume of the second portion is greater than a total volume of the first portion, and the total volume of the first portion is greater than a total volume of the third portion.
    Type: Application
    Filed: November 6, 2023
    Publication date: March 7, 2024
    Inventors: CHUN-YEN PENG, TE-YANG LAI, BO-FENG YOUNG, CHIH-YU CHANG, SAI-HOOI YEONG, CHI ON CHUI
  • Patent number: 11923252
    Abstract: A semiconductor device includes a first set of nanostructures stacked over a substrate in a vertical direction, and each of the first set of nanostructures includes a first end portion and a second end portion, and a first middle portion laterally between the first end portion and the second end portion. The first end portion and the second end portion are thicker than the first middle portion. The semiconductor device also includes a first plurality of semiconductor capping layers around the first middle portions of the first set of nanostructures, and a gate structure around the first plurality of semiconductor capping layers.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: March 5, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sai-Hooi Yeong, Bo-Feng Young, Chi-On Chui, Chih-Chieh Yeh, Cheng-Hsien Wu, Chih-Sheng Chang, Tzu-Chiang Chen, I-Sheng Chen
  • Publication number: 20240071797
    Abstract: An apparatus in an overhead transport system is provided. The apparatus includes a hanger feature configured to be hung from a ceiling, a plate-like structure having a top surface and a bottom surface, the bottom surface being rotatably coupled to the hanger feature, and at least one pair of rail members mechanically coupled to the bottom surface of the plate-like structure by way of a plurality of yoke members.
    Type: Application
    Filed: August 26, 2022
    Publication date: February 29, 2024
    Inventors: Guancyun Li, Ching-Jung Chang, Chi-Feng Tung
  • Patent number: 9409381
    Abstract: The present invention relates to a floor underlay, which is reusable and has multilayer and multifunctional characteristics. The floor underlay is used for joining the floor and floor decoration sheets. The structure of the floor underlay comprises adhesive layers, support layers, waterproof layers, and a multiple-media intermediate layer. The multiple-media intermediate layer is formed by mixing a plurality of medium particles. The medium particles are formed by elastic materials, such as rubber, rubber foam, polyurethane, or polyurethane foam. Thereby, the floor including the floor underlay will have the vibration absorption, sound absorption, flame resistive, and fall prevention functions.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: August 9, 2016
    Inventor: Chi-Feng Chang
  • Publication number: 20160053497
    Abstract: The present invention relates to a floor underlay, which is reusable and has multilayer and multifunctional characteristics. The floor underlay is used for joining the floor and floor decoration sheets. The structure of the floor underlay comprises adhesive layers, support layers, waterproof layers, and a multiple-media intermediate layer. The multiple-media intermediate layer is formed by mixing a plurality of medium particles. The medium particles are formed by elastic materials, such as rubber, rubber foam, polyurethane, or polyurethane foam. Thereby, the floor including the floor underlay will have the vibration absorption, sound absorption, flame resistive, and fall prevention functions.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 25, 2016
    Inventor: CHI-FENG CHANG
  • Patent number: 9202953
    Abstract: The invention relates to a method for manufacturing a solar cell with a nanostructural film, including steps of treating a glass substrate with UV ozone, uniformly coating a polystyrene nanospherical layer containing plural nanospheres on the surface of the glass substrate and curing the polystyrene nanospherical layer for adhesion onto the glass substrate, forming a first optical layer on the surface of the polystyrene nanospherical layer, curing and releasing the first optical layer from the polystyrene nanospherical layer to obtain a concave spherical nanostructured film, and finally affixing the concave spherical nanostructured film on the surface of a solar cell to manufacture a solar cell with nanostructure after curing by baking.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: December 1, 2015
    Assignee: National Cheng Kung University
    Inventors: Yu-Shun Cheng, Chie Gau, Chi-Feng Chang, Chih-Hung Chuang, Yu-Cheng Hong, Kai-Hung Chen
  • Publication number: 20150337386
    Abstract: Provided in the present invention are a molecule for biomarking cancers and a test composition for screening cancers and a detection method thereof comprising designing a number of oligonucleotide primers or probes by analyzing specimens for methylated regions of targeted genes PAX1, ZNF582, SOX1 and NKX6-1 in physical examination, and then using the oligonucleotide probes to detect whether methylation exists in the target genes, and further judge the likelihood of the occurrence of cancer. The detection methods for methylation status include methylation-specific PCR, (MSP), quantitative methylation-specific PCR (QMSP), bisulfate sequencing (BS), microarrays, mass spectrometer, denaturing high-performance liquid chromatography (DHPLC), pyrosequencing, and enzyme-linked immunosorbent assay (ELISA).
    Type: Application
    Filed: August 28, 2012
    Publication date: November 26, 2015
    Applicant: ISTAT BIOMEDICAL CO., LTD.
    Inventors: Chi-Feng CHANG, Huei-Jen WANG, Yu-Ligh LIOU
  • Publication number: 20150333195
    Abstract: The invention relates to a method for manufacturing a solar cell with a nanostructural film, including steps of treating a glass substrate with UV ozone, uniformly coating a polystyrene nanospherical layer containing plural nanospheres on the surface of the glass substrate and curing the polystyrene nanospherical layer for adhesion onto the glass substrate, forming a first optical layer on the surface of the polystyrene nanospherical layer, curing and releasing the first optical layer from the polystyrene nanospherical layer to obtain a concave spherical nanostructured film, and finally affixing the concave spherical nanostructured film on the surface of a solar cell to manufacture a solar cell with nanostructure after curing by baking.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 19, 2015
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: YU-SHUN CHENG, CHIE GAU, CHI-FENG CHANG, CHIH-HUNG CHUANG, YU-CHENG HONG, KAI-HUNG CHEN
  • Publication number: 20150333194
    Abstract: A method for manufacturing a nanostructural film in a solar cell is revealed herein to include steps of forming an optical layer on a surface of a solar cell, heating a substrate of the solar cell at a temperature ranging from 100° C. to 200° C., imprinting a micro-pattern of a brightness enhanced film (BEF) on the optical layer in a vacuum environment, wherein the micro-pattern has a triangular pyramid shape and arranged periodically on the optical layer, finally removing the BEF after cooling so that the optical layer is formed into a nanostructured film corresponding to the micro-pattern of the BEF.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 19, 2015
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: YU-SHUN CHENG, CHIE GAU, CHI-FENG CHANG, CHIH-HUNG CHUANG, YU-CHENG HONG, KAI-HUNG CHEN
  • Patent number: 8142999
    Abstract: This invention relates to a method of determining the presence of certain HLA alleles, such as HLA-B*1502 or HLA-B*5801, and a kit for carrying out this method. Also disclosed is a method for assessing whether a patient is at risk for developing adverse drug reactions (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis, or hypersensitivity syndrome) based on the presence or absence of a genetic marker (e.g., HLA-B*1502, HLA-B*5801, or HLA-B*4601).
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: March 27, 2012
    Assignees: Academia Sinica, Pharmigene, Inc.
    Inventors: Yuan-Tsong Chen, Shuen-Iu Hung, Chih-Lung Shen, Chi-Feng Chang, Hsin-Yu Lin, Wei-Hsuan Chen
  • Publication number: 20110212439
    Abstract: This invention relates to a method of determining the presence of certain HLA alleles, such as HLA-B*1502 or HLA-B*5801, and a kit for carrying out this method. Also disclosed is a method for assessing whether a patient is at risk for developing adverse drug reactions (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis, or hypersensitivity syndrome) based on the presence or absence of a genetic marker (e.g., HLA-B*1502, HLA-B*5801, or HLA-B*4601).
    Type: Application
    Filed: May 4, 2011
    Publication date: September 1, 2011
    Applicants: ACADEMIA SINICA, PHARMIGENE INC.
    Inventors: YUAN-TSONG CHEN, SHUEN-IU HUNG, CHIH-LUNG SHEN, CHI-FENG CHANG, HSIN-YU LIN, WEI-HSUAN CHEN
  • Patent number: 7943309
    Abstract: This invention relates to a method of determining the presence of certain HLA alleles, such as HLA-B*1502 or HLA-B*5801, and a kit for carrying out this method. Also disclosed is a method for assessing whether a patient is at risk for developing adverse drug reactions (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis, or hypersensitivity syndrome) based on the presence or absence of a genetic marker (e.g., HLA-B*1502, HLA-B*5801, or HLA-B*4601).
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 17, 2011
    Assignees: Pharmigene Inc., Academia Sinica
    Inventors: Yuan-Tsong Chen, Shuen-Iu Hung, Chih-Lung Shen, Chi-Feng Chang, Hsin-Yu Lin, Wei-Hsuan Chen
  • Publication number: 20080145846
    Abstract: This invention relates to a method of determining the presence of certain HLA alleles, such as HLA-B*1502 or HLA-B*5801, and a kit for carrying out this method. Also disclosed is a method for assessing whether a patient is at risk for developing adverse drug reactions (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis, or hypersensitivity syndrome) based on the presence or absence of a genetic marker (e.g., HLA-B*1502, HLA-B*5801, or HLA-B*4601).
    Type: Application
    Filed: May 11, 2007
    Publication date: June 19, 2008
    Applicants: Academia Sinica, PharmiGene Inc.
    Inventors: Yuan-Tsong Chen, Shuen-lu Hung, Chih-Lung Shen, Chi-Feng Chang, Hsin-Yu Lin, Wei-Hsuan Chen
  • Publication number: 20070298426
    Abstract: This invention relates to predicting a patient's warfarin dose based on the nucleotide at position ?1639 of the VKORC1 gene and the genotype of the CYP2C9 gene in that patient. The warfarin dose so predicted can be further adjusted according to the patient's non-genetic factors, e.g., age, body surface area, medical conditions, and use or non-use of certain drugs.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 27, 2007
    Applicants: Academia Sinica, PharmiGene Inc.
    Inventors: Yuan-Tsong Chen, Chih-Lung Shen, Chi-Feng Chang, Ming Ta Lee, Jen-Chi Hsu, Liang-Suei Lu, Ming-Shen Wen