Patents by Inventor Chih-Wei Chao

Chih-Wei Chao 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: 10658550
    Abstract: A light-emitting diode (LED) package structure includes: a support; an LED chip; and a package cover, wherein: a support circuit is formed over the support; the LED chip is arranged over the support and electrically coupled to the support circuit; a lower surface periphery of the package cover is provided with a groove structure filled with organic binder; and the package cover is arranged over the LED chip and connected to the support via the organic binder.
    Type: Grant
    Filed: November 10, 2018
    Date of Patent: May 19, 2020
    Assignee: XIAMEN SAN'AN OPTOELECTRONICS CO., LTD.
    Inventors: Junpeng Shi, Qiuxia Lin, Zhenduan Lin, Chen-Ke Hsu, Chih-Wei Chao
  • Publication number: 20200135493
    Abstract: A semiconductor device includes an isolation insulating layer disposed over a substrate, a fin structure disposed over the substrate, and extending in a first direction in plan view, an upper portion of the fin structure being exposed from the isolation insulating layer, a gate structure disposed over a part of the fin structure, the gate structure extending in a second direction crossing the first direction, and a source/drain structure formed on the upper portion of the fin structure, which is not covered by the gate structure and exposed from the isolation insulating layer. The source/drain structure includes a SiP layer, and an upper portion of the source/drain structure includes an alloy layer of Si, Ge and Ti.
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Inventors: Yuan-Shun CHAO, Chih-Wei KUO
  • Publication number: 20200127829
    Abstract: A technique to secure a wireless communication link that is being shared among a wireless access point (AP), and each of a set of wireless clients (each a mobile station (STA)) that are coupled to the AP over the communication link. A typical implementation is a WPA2-PSK communication link. In this approach, and in lieu of a single secret key being shared by all AP-STA pairs, each AP-STA pair derives its own unique WLAN shared secret, preferably via a Diffie-Hellman (DH) key exchange. The WLAN shared secret is then used to generate WPA2-PSK keys, namely, pairwise master key (PMK) and pairwise transient key (PTK), that establish an 802.11 standards-compliant secure link.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 23, 2020
    Applicant: International Business Machines Corporation
    Inventors: Chih-Wei Hsiao, Chih-Wen Chao, Wei-Hsiang Hsiung, Ya-Hsuan Tsai
  • Patent number: 10629480
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first layer over a second layer. The method includes forming a first recess and a second recess in the first layer. The first recess is narrower than the second recess. The method includes forming a first covering layer in the first recess and the second recess. The first covering layer in the first recess is thinner than the first covering layer in the second recess. The method includes removing the first covering layer in the first recess and the first covering layer covering the first bottom surface to form a first opening in the first covering layer in the second recess. The method includes removing the first portion and the second portion through the first recess and the first opening.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: April 21, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Xi-Zong Chen, Chih-Hsuan Lin, Cha-Hsin Chao, Yi-Wei Chiu, Li-Te Hsu
  • Patent number: 10628515
    Abstract: A method for compressing an initial weight matrix includes generating a first weight matrix and a second weight matrix according to the initial weight matrix where the initial weight matrix is a Kronecker product of a transposed matrix of the second weight matrix and the first weight matrix; optimizing the first and second weight matrixes to generate an optimized first weight matrix and an optimized second weight matrix; generating a processed data matrix according to an initial data matrix where the initial data matrix is vectorization of the processed data matrix; multiplying the processed data matrix by the optimized first weight matrix to generate a first product; multiplying the optimized second weight matrix by the first product to generate a second product; and vectorizing the second product. The initial weight matrix requires a larger memory space than a combined memory space of the first and second weight matrixes.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: April 21, 2020
    Assignee: KaiKuTek INC.
    Inventors: Yu-Lin Chao, Chieh Wu, Chih-Wei Chen, Guan-Sian Wu, Chun-Hsuan Kuo, Mike Chun Hung Wang
  • Publication number: 20200100107
    Abstract: Securing public hotspot communications by: generating a public-private key pair, deriving an SSID using the generated public key, creating a network using the SSID, specifying a network security setting, and providing a Client the SSID and network security settings. Further, by: receiving a network connection request from the Client, establishing a connection with the Client, receiving a probe request from a network access point, sending an authentication message, receiving SSID configuration information from the network access point, associating the SSID network and the network access point, and receiving Client data.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Inventors: Chih-Wei Hsiao, Wei-Hsiang Hsiung, Chih-Wen Chao, Sheng Hao Wang
  • Publication number: 20200094293
    Abstract: The present disclosure describes a wafer cleaning process in which a drained cleaning solution, which is used to remove metal contaminants from the wafer, is sampled and analyzed to determine the concentration of metal ions in the solution. The wafer cleaning process includes dispensing, in a wafer cleaning station, a chemical solution on one or more waters; collecting the dispensed chemical solution; determining a concentration of contaminants in the chemical solution; in response to the concentration of the contaminants being greater than a baseline value, adjusting one or more parameters in the cleaning process; and in response to the concentration of the contaminants being equal to or less than the baseline value, transferring the one or more wafers out of the wafer cleaning station.
    Type: Application
    Filed: July 24, 2019
    Publication date: March 26, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Wei Chao, Shu-Yen Wang
  • Publication number: 20200065351
    Abstract: A method for compressing an initial weight matrix includes generating a first weight matrix and a second weight matrix according to the initial weight matrix where the initial weight matrix is a Kronecker product of a transposed matrix of the second weight matrix and the first weight matrix; optimizing the first and second weight matrixes to generate an optimized first weight matrix and an optimized second weight matrix; generating a processed data matrix according to an initial data matrix where the initial data matrix is vectorization of the processed data matrix; multiplying the processed data matrix by the optimized first weight matrix to generate a first product; multiplying the optimized second weight matrix by the first product to generate a second product; and vectorizing the second product. The initial weight matrix requires a larger memory space than a combined memory space of the first and second weight matrixes.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 27, 2020
    Inventors: Yu-Lin Chao, Chieh Wu, Chih-Wei Chen, Guan-Sian Wu, Chun-Hsuan Kuo, Mike Chun Hung Wang
  • Patent number: 10567970
    Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The network signal forwarder includes at least two network connectors, each of which is configured to be connected to one remote signal source or the baseband processing unit pool. The software defined network controller obtains connection relation between the network connectors and the remote signal sources or the baseband processing unit pool, and provides network resource information to the network signal forwarder according to the connection relation. The network signal forwarder establishes communication between one remote signal source and the baseband processing unit pool according to the network resource information.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 18, 2020
    Assignee: ALPHA NETWORKS INC.
    Inventors: Chih-Wei Chao, Li-Chung Hsu, Yu-Hsin Kuo, Po-Wei Shih, Shih-Chi Lee
  • Publication number: 20200050103
    Abstract: The present disclosure describes a method for improving post-photolithography critical dimension (CD) uniformity for features printed on a photoresist. A layer can be formed on one or more printed features and subsequently etched to improve overall CD uniformity across the features. For example the method includes a material layer disposed over a substrate and a photoresist over the material layer. The photoresist is patterned to form a first feature with a first critical dimension (CD) and a second feature with a second CD that is larger than the first CD. Further, a layer is formed with one or more deposition/etch cycles in the second feature to form a modified second CD that is nominally equal to the first CD.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 13, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Xi-Zong Chen, Cha-Hsin Chao, Yi-Wei Chiu, Li-Te Hsu, Chih-Hsuan Lin
  • Patent number: 10559732
    Abstract: A surface-mounted light-emitting device is fabricated by epitaxial growth: forming the LED epitaxial structure over a growth substrate through epitaxial growth; chip fabrication: determining P and N electrode regions and an isolating region over the LED epitaxial structure surface and fabricating the P and N electrode pads and the insulator over the P and N electrode regions and the isolating region, wherein the P and N electrode pads have sufficient thicknesses to support the LED epitaxial structure, and the insulator is formed between the P and N electrode pads to prevent the P and N electrode pads from a short circuit; removing the growth substrate and unitizing the LED epitaxial structure to form the chip; and SMT packaging: providing the supporting substrate and directly mounting the P and N electrode pads of the chip over the supporting substrate through SMT packaging to thereby form the surface-mounted LED light-emitting device.
    Type: Grant
    Filed: December 3, 2016
    Date of Patent: February 11, 2020
    Assignee: XIAMEN SANAN OPTO ELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shaohua Huang, Xiaoqiang Zeng, Chih-Wei Chao
  • Patent number: 10553900
    Abstract: A precursor composition of a gel electrolyte is provided, which includes (1) meta-stable nitrogen-containing polymer, (2) gelling promoter, (3) carbonate compound, and (4) metal salt. The (1) meta-stable nitrogen-containing polymer is formed by reacting (a) nitrogen-containing heterocyclic compound with (b) maleimide compound, wherein (a) nitrogen-containing heterocyclic compound and (b) maleimide compound have a molar ratio of 1:0.1 to 1:10.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 4, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yueh-Wei Lin, Jason Fang, Wei-Hsin Wu, Chung-Hsiang Chao, Chih-Ching Chang
  • Patent number: 10545398
    Abstract: A projection device including at least one projection module, at least one reflecting element, and at least one adjusting structure is provided. The projection module has at least one optical axis. The projection module is adapted to provide a projection beam. The projection beam is transmitted along a light transmission path to a projection target to form a projection image. The reflecting element is disposed between the at least one projection module and the projection target and located on the optical axis and has a reflecting surface, wherein the reflecting surface is adapted to reflect the projection beam to the projection target. The adjusting structure is connected to the reflecting element. The adjusting structure is adapted to drive the reflecting element to rotate along a first axis such that the projection image moves horizontally.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 28, 2020
    Assignee: Coretronic Corporation
    Inventors: Chuan-Te Cheng, Yen-Lin Chen, Chih-Wei Shih, Chin-Sheng Chao
  • Patent number: 10545394
    Abstract: A projection device including at least one projection module, at least one reflecting element, and at least one adjusting structure is provided. The projection module has at least one optical axis. The projection module is adapted to provide a projection beam. The projection beam is transmitted along a light transmission path to a projection target to form a projection image. The reflecting element is disposed between the at least one projection module and the projection target and located on the optical axis and has a reflecting surface, wherein the reflecting surface is adapted to reflect the projection beam to the projection target. The adjusting structure is connected to the projection module and the reflecting element. The adjusting structure is adapted to drive the projection module and the reflecting element to rotate along a second axis such that the projection image rotates.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 28, 2020
    Assignee: Coretronic Corporation
    Inventors: Chuan-Te Cheng, Yen-Lin Chen, Chih-Wei Shih, Chin-Sheng Chao
  • Publication number: 20200028789
    Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. Each remote signal source is configured to transmit an access signal. The baseband processing unit pool provides a baseband processing signal. The access management server provides an access state signal. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The remote signal sources and the baseband processing unit pool are electrically connected to the network signal forwarder so that the access signal and the baseband processing signal are transmitted through the network signal forwarder. Signal transmission between the software defined network controller and the access management server are independent of the at least one network signal forwarder.
    Type: Application
    Filed: December 12, 2018
    Publication date: January 23, 2020
    Inventors: CHIH-WEI CHAO, LI-CHUNG HSU, YU-HSIN KUO, PO-WEI SHIH, SHIH-CHI LEE
  • Publication number: 20200029220
    Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. The software defined network controller is electrically connected to the access management server and the network signal forwarder. The network signal forwarder includes at least two network connectors, each of which is configured to be connected to one remote signal source or the baseband processing unit pool. The software defined network controller obtains connection relation between the network connectors and the remote signal sources or the baseband processing unit pool, and provides network resource information to the network signal forwarder according to the connection relation. The network signal forwarder establishes communication between one remote signal source and the baseband processing unit pool according to the network resource information.
    Type: Application
    Filed: December 12, 2018
    Publication date: January 23, 2020
    Inventors: CHIH-WEI CHAO, LI-CHUNG HSU, YU-HSIN KUO, PO-WEI SHIH, SHIH-CHI LEE
  • Publication number: 20200029247
    Abstract: A cloud radio access network system includes remote signal sources, a baseband processing unit pool, an access management server, a software defined network controller and a network signal forwarder. Each remote signal source is configured to transmit an access signal. The baseband processing unit pool provides a baseband processing signal. The access management server provides an access state signal. Different maximum transmission rates are transmitted via the access state signal. When the baseband processing unit pool has authenticated one remote signal source, the baseband processing unit pool transmits an authentication notification signal to the access management server. Then, the access management server informs the software defined network controller according to the authentication notification signal to increase an upper limit of a signal transmission rate between the baseband processing unit pool and the authenticated remote signal source to a higher one of the maximum transmission rates.
    Type: Application
    Filed: December 12, 2018
    Publication date: January 23, 2020
    Inventors: CHIH-WEI CHAO, LI-CHUNG HSU, YU-HSIN KUO, PO-WEI SHIH, SHIH-CHI LEE
  • Publication number: 20200020583
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a fin structure over a semiconductor substrate and forming a gate stack over the fin structure. The method also includes forming an epitaxial structure over the fin structure, and the epitaxial structure is adjacent to the gate stack. The method further includes forming a dielectric layer over the epitaxial structure and forming an opening in the dielectric layer to expose the epitaxial structure. In addition, the method includes applying a metal-containing material on the epitaxial structure while the epitaxial structure is heated so that a portion of the epitaxial structure is transformed to form a metal-semiconductor compound region.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 16, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yi-Hsiang CHAO, Min-Hsiu HUNG, Chun-Wen NIEH, Ya-Huei LI, Yu-Hsiang LIAO, Li-Wei CHU, Kan-Ju LIN, Kuan-Yu YEH, Chi-Hung CHUANG, Chih-Wei CHANG, Ching-Hwanq SU, Hung-Yi HUANG, Ming-Hsing TSAI
  • Patent number: 10522368
    Abstract: A semiconductor device includes an isolation insulating layer disposed over a substrate, a fin structure disposed over the substrate, and extending in a first direction in plan view, an upper portion of the fin structure being exposed from the isolation insulating layer, a gate structure disposed over a part of the fin structure, the gate structure extending in a second direction crossing the first direction, and a source/drain structure formed on the upper portion of the fin structure, which is not covered by the gate structure and exposed from the isolation insulating layer. The source/drain structure includes a SiP layer, and an upper portion of the source/drain structure includes an alloy layer of Si, Ge and Ti.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 31, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yuan-Shun Chao, Chih-Wei Kuo
  • Publication number: 20190383903
    Abstract: A gesture recognition system includes a Frequency modulated continuous waveform radar system. First and second channels of the signal reflected by the object are preprocessed and respectively sent to first and second feature map generators. A machine-learning accelerator is configured to receive output from the first and second feature map generators and form frames fed to a deep neural network realized with a hardware processor array for gesture recognition. A memory stores a compressed set of weights as fixed-point, low rank matrices that are directly treated as weights of the deep neural network during inference.
    Type: Application
    Filed: August 23, 2018
    Publication date: December 19, 2019
    Inventors: Yu-Lin Chao, Chieh Wu, Chih-Wei Chen, Guan-Sian Wu, Chun-Hsuan Kuo, Mike Chun Hung Wang