Patents by Inventor Ching-An Chung

Ching-An Chung 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: 11056434
    Abstract: A semiconductor device comprises: a first semiconductor structure; a second semiconductor structure on the first semiconductor structure; an active region, wherein the active region comprises multiple alternating well layers and barrier layers, the active region further comprises an upper surface facing the second semiconductor structure and a bottom surface opposite the upper surface; an electron blocking region between the second semiconductor structure and the active region; a first aluminum-containing layer between the electron blocking region and the active region, wherein the first aluminum-containing layer has a band gap greater than the band gap of the first electron blocking layer; and a p-type dopant above the bottom surface of the active region and comprising a concentration profile comprising a peak shape having a peak concentration value, wherein the peak concentration value lies at a distance of between 15 nm and 60 nm from the upper surface of the active region.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: July 6, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Yung-Chung Pan, Chang-Yu Tsai, Ching-Chung Hu, Ming-Pao Chen, Chi Shen, Wei-Chieh Lien
  • Publication number: 20210199914
    Abstract: The present disclosure provides a small and well-focused lens driving device, a camera including the lens driving device, and a portable electronic apparatus. The lens driving device includes a fixing base, a cover, a lens holder, a support frame, a support member, and a shape memory alloy portion. In the lens driving device, a receiving space is defined by the fixing base and the cover. The lens holder configured to receive a lens, as well as the support frame, the support member, and the shape memory alloy portion that cause the lens holder to move freely in an optical axis direction are provided in the receiving space. The shape memory alloy portion has a shape memory alloy and a crimping lug, and the shape memory alloy portion is provided on the fixing base and the support frame to cause the lens holder to move freely in the optical axis direction.
    Type: Application
    Filed: February 14, 2020
    Publication date: July 1, 2021
    Inventor: Ching-Chung Chiu
  • Publication number: 20210196655
    Abstract: A composition for cross talk between estrogen receptors and cannabinoid receptors including a chelator and a receptor ligand is provided. A method of synthesizing the composition is also provided, and the composition may be further prepared in pharmaceutical formulations or kits for therapy or molecular imaging.
    Type: Application
    Filed: March 4, 2021
    Publication date: July 1, 2021
    Applicant: SeeCure Taiwan Co., Ltd.
    Inventors: Tsung-Tien Kuo, David J. Yang, Wei-Chung Chang, Min-Ching Chung, Chi-Shiang Ke
  • Publication number: 20210202089
    Abstract: The medical image recognition method includes the following steps: transmitting an accession number to a recognition module through a prediction unit; receiving an accession number and a human body image by a recognition model, and importing the human body image into a set of neural network models respectively; wherein each of the neural network models outputs at least one recognition result; the recognition module returns the recognition results to the prediction unit, and then the recognition results are stored in database.
    Type: Application
    Filed: July 20, 2020
    Publication date: July 1, 2021
    Inventors: Kuei-Hong KUO, Hao WANG, Chung-Yi YANG, Kuan-Chieh HUANG, Bo-Yu LIN, Yi-Ting PENG, Ching-Chung KAO
  • Publication number: 20210188652
    Abstract: A method for recovering lithium is provided. The method includes the following steps. A lithium-containing solution is provided. A manganese oxide adsorbent is immersed in the lithium-containing solution, and a reducing agent is added to carry out an adsorption reaction, and the manganese oxide adsorbent is immersed in a solution containing an oxidizing agent to carry out a desorption reaction.
    Type: Application
    Filed: August 7, 2020
    Publication date: June 24, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Li-Ching Chung, Guan-You Lin, Yi Ting Wang, Chun-Chi Lee, Tzu Yu Cheng, Shing-Der Chen, Kuan-Foo Chang, Hsin Shao
  • Patent number: 11043573
    Abstract: A method of fabricating tantalum nitride barrier layer in an ultra low threshold voltage semiconductor device is provided. The method includes forming a high-k dielectric layer over a semiconductor substrate. Subsequently, a tantalum nitride barrier layer is formed on the high-k dielectric layer. The tantalum nitride barrier layer has a Ta:N ratio between 1.2 and 3. Next, a plurality of first metal gates is formed on the tantalum nitride barrier layer. The first metal gates are patterned, and then a second metal gate is formed on the tantalum nitride barrier layer.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 22, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Chi-Cheng Hung, Yu-Sheng Wang, Weng-Cheng Chen, Hao-Han Wei, Ming-Ching Chung, Chi-Cherng Jeng
  • Publication number: 20210181486
    Abstract: A wide-angle lens assembly includes a first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth lenses. The first and second lenses are with negative refractive power and include a convex surface facing an object side and a concave surface facing an image side respectively. The third lens is a biconcave lens with negative refractive power. The fourth and fifth lenses are biconvex lenses with positive refractive power. The sixth lens is with positive refractive power and includes a convex surface facing the image side. The seventh lens is with negative refractive power and includes a concave surface facing the object side. The eighth lens is with positive refractive power and includes a convex surface facing the object side. The ninth lens is with positive refractive power and includes a concave surface facing the object side and a convex surface facing the image side.
    Type: Application
    Filed: November 10, 2020
    Publication date: June 17, 2021
    Inventor: Ching-Chung Yeh
  • Patent number: 11035996
    Abstract: A light guide plate includes a main body, stripe structures, and light-adjusting structures. The main body includes a light-incident surface and an optical surface. The stripe structures are disposed on the optical surface. The light-adjusting structures are disposed between two adjacent stripe structures. Each of the light-adjusting structures includes a first light active surface and a second light active surface. The first light active surface faces towards the light-incident surface. The second light active surface faces towards an opposite light-incident surface. The first light active surface and the second light active surface are inclined towards different directions and formed a non-symmetrical shape. A first included angle is formed between the first light active surface and the optical surface. A second included angle is formed between the second light active surface and the optical surface. The first included angle and the second included angle are acute angles.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: June 15, 2021
    Assignees: Radiant(Guangzhou) Opto-Electronics Co., Ltd, Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Chin-Ting Weng, Hao Chen, Yi-Ching Chung
  • Patent number: 11036437
    Abstract: A control method of a storage device wherein a host cannot transfer a command to the storage device when the storage device transfers data to the host, after which there is a data transfer delay time period and no data is transferred to the host until a read command is received from the host, the control method comprising the steps of: detecting, by a memory controller of the storage device, a host delay time of the host each time a read command is received from the host during the data transfer delay time period; and adjusting, by the memory controller, the data transfer delay time period based on one or more of the detected host delay times.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: June 15, 2021
    Assignee: SK hynix Inc.
    Inventors: Chun-Shu Chen, Lian-Chun Lee, Ching-Chung Lai
  • Patent number: 11016580
    Abstract: A mouse includes an optical module and a casing. The optical module includes an optical element and two rotation portions. The optical element locates between the rotation portions. The casing includes a body, two extension portions, a driving piece and a rod. The extension portions connect to the body and define a space therebetween. The optical module locates at the space. The rotation portions insert into the extension portions. The driving piece moves inside the body and the extension portions. The driving piece is connected with one of the rotation portions and configured to rotate the corresponding rotation portion such that the optical element faces to a first direction or a second direction different from the first direction. A first end of the rod connects with the driving piece to move the driving piece. A second end of the rod is exposable outside the body.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: May 25, 2021
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Ching-Chung Chen
  • Patent number: 11009681
    Abstract: A photographing lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power. The second lens is a lens with negative refractive power, in which an image-side surface of the second lens is concave. The third lens is a lens with positive refractive power, in which an image-side surface of the third lens is convex. The fourth lens is a lens with positive refractive power. The fifth lens is a lens with negative refractive power, in which an object-side surface of the fifth lens is concave. The photographing lens has an excellent image resolving ability.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: May 18, 2021
    Assignees: Sintai Optical (Shenzhen) Co., Ltd., Asia Optical Co., Inc.
    Inventors: An-Kai Chang, Ching-Chung Yeh
  • Publication number: 20210141176
    Abstract: The present invention provides an optical transceiver including a first housing, a second housing, a printed circuit board, a handle member and an elastic body. The first housing and the second housing are assembled with each other as a main body, and form an accommodation space, a first handle-guiding groove and a second handle-guiding groove. The first handle-guiding groove and the second handle-guiding groove are respectively located on two opposite sides of the main body. The printed circuit board is accommodated within the accommodation space. The handle member has a first arm and a second arm respectively received in the first handle-guiding groove and the second handle-guiding groove. The elastic body is received in an elastic-body-receiving slot of the first housing. None side of the elastic-body-receiving slot is formed by the second housing, or the elastic-body-receiving slot is a non-linear slot.
    Type: Application
    Filed: February 4, 2020
    Publication date: May 13, 2021
    Inventors: Chen-Mao Lu, Wen-Ching Chung, Li-Hua Su
  • Publication number: 20210132138
    Abstract: The present disclosure provides a testing fixture. The testing fixture includes a carrier, a plurality of sets of electrical lines and a plurality of electrical lines. The carrier includes a base and a frame extending along an upper surface of the base. The base and the frame define a first recess, a second recess extending longitudinally from the first recess, and a third recess extending transversely from the first recess. The plurality of sets of electrical contacts are disposed on the base and arranged in a rotationally symmetrical manner, and the electrical lines are electrically connected to the plurality of sets of electrical contacts.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Inventors: Ching-Chung WANG, Jui-Hsiu JAO
  • Publication number: 20210132139
    Abstract: The present disclosure provides a testing fixture for holding a device under test (DUT). The testing fixture includes a base, a frame, a recessed portion, a plurality of sets of electrical contacts and a plurality of electrical lines. The frame extends upward along an outer perimeter of an upper surface of the base. The recessed portion is surrounded by the frame and the upper surface of the base, and the DUT is received in the recessed portion. The plurality of sets of electrical contacts are disposed on the recessed portion and arranged in a rotationally symmetrical manner, wherein a plurality of plated through holes of the DUT are in contact with one set of the electrical contacts after the DUT is assembled with the testing fixture.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Inventors: Ching-Chung WANG, Jui-Hsiu JAO
  • Publication number: 20210119014
    Abstract: A high voltage semiconductor device and a manufacturing method thereof are provided in the present invention. A recess is formed in a semiconductor substrate, and a gate dielectric layer and a main gate structure are formed in the recess. Therefore, the high voltage semiconductor device formed by the manufacturing method of the present invention may include the main gate structure lower than a top surface of an isolation structure formed in the semiconductor substrate. Problems about integrated manufacturing processes of the high voltage semiconductor device and other kinds of semiconductor devices when the gate structure is relatively high because of the thicker gate dielectric layer required in the high voltage semiconductor device may be improved accordingly.
    Type: Application
    Filed: December 9, 2020
    Publication date: April 22, 2021
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Ping-Hung Chiang
  • Patent number: 10971652
    Abstract: A semiconductor device comprises: a first semiconductor structure; a second semiconductor structure on the first semiconductor structure; an active region, wherein the active region comprises multiple alternating well layers and barrier layers, the active region further comprises an upper surface facing the second semiconductor structure and a bottom surface opposite the upper surface; an electron blocking region between the second semiconductor structure and the active region; a first aluminum-containing layer between the electron blocking region and the active region, wherein the first aluminum-containing layer has a band gap greater than the band gap of the first electron blocking layer; and a p-type dopant above the bottom surface of the active region and comprising a concentration profile comprising a peak shape having a peak concentration value, wherein the peak concentration value lies at a distance of between 15 nm and 60 nm from the upper surface of the active region.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: April 6, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chia-Ming Liu, Chang-Hua Hsieh, Yung-Chung Pan, Chang-Yu Tsai, Ching-Chung Hu, Ming-Pao Chen, Chi Shen, Wei-Chieh Lien
  • Publication number: 20210080191
    Abstract: A manufacturing method for a vapor chamber without an injection tube and an apparatus thereof, includes the steps of preparing two plates for covering onto each other to form a vapor chamber housing, injecting a working fluid between the two plates, and further preparing a sealed space having a refrigeration device installed therein, and then placing the two plates having the working fluid injected therein onto the refrigeration device, thereby maintaining a temperature of the working fluid below a boiling point under a vacuum state; next, performing evacuation on the sealing space, and then sealing perimeters of the two plates. Consequently, a vapor chamber without any injection tube can be obtained through such manufacturing method.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Inventors: San-Hsi WANG, Ching-Chung WANG, Tzu WANG
  • Patent number: 10936028
    Abstract: An electronic device and a method for controlling a fan operation are provided. A containing space of the electronic device has a fan module and a deformation sensor. The deformation sensor detects whether a fan housing of the fan module is deformed. The deformation sensor transmits a deformation signal to a controller when detecting that the fan housing is deformed. The controller drives a fan blade of the fan module to stop running after receiving the deformation signal.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 2, 2021
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Chih-Chin Chien, I-Feng Hsu, Ching-Chung Chen, Tse-Yang Lin, Tse-An Chu, Ching-Ya Tu, Chang-Yuan Wu, Hao-Wu Yang, Huan-Yang Yeh, Chin-Hsien Chang, Chin-Yuan Chuang, Chia-Hung Lin
  • Publication number: 20210044455
    Abstract: A method of transmitting a block from a bridge to a mesh network includes transmitting the block to at least a first node of a plurality of nodes, for distribution through the mesh network. The block includes a plurality of packets. The bridge receives, from the plurality of nodes, a plurality of status packets. Each status packet indicates reception status of the plurality of packets at a respective node of the plurality of nodes. The bridge selects at least a first packet of the plurality of packets for retransmission to the mesh network, based on the status packets. The bridge generates a retransmission block including at least the first packet. The first packet is included in the retransmission block a number of times based on the status packets. The bridge transmits the retransmission block to at least the first node, for distribution of the retransmission block through the mesh network.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 11, 2021
    Applicant: WiSilica Inc.
    Inventors: Francis Antony, Suresh Singamsetty, Dennis Ching Chung Kwan, Manu Velayudhan
  • Patent number: 10914885
    Abstract: A light guide plate, a backlight module and a display device are provided. The light guide plate includes a main body and optical structures. The main body has a light-incident surface, an opposite light-incident surface, and an optical surface. The optical structures are disposed on the optical surface. Each of the optical structures has a first optical active surface and a second optical active surface, and the first optical active surface and the second optical active surface are inclined towards different directions and formed in a non-symmetrical shape. A first inclined angle is formed between the first optical active surface and the optical surface. A second inclined angle is formed between the second optical active surface and the optical surface. The first included angle is greater than the second included angle, and a light-emitting angle of the light guide plate decreases exponentially with the first inclined angle.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 9, 2021
    Assignees: Radiant(Guangzhou) Opto-Electronics Co., Ltd, Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Chin-Ting Weng, Hao Chen, Yi-Ching Chung