Patents by Inventor Chih-Chiang Lu

Chih-Chiang Lu 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: 11901480
    Abstract: The present disclosure provides a light-emitting device comprising a substrate with a topmost surface; a first semiconductor stack arranged on the substrate, and comprising a first top surface separated from the topmost surface by a first distance; a first bonding layer arranged between the substrate and the first semiconductor stack; a second semiconductor stack arranged on the substrate, and comprising a second top surface separated from the topmost surface by a second distance which is different form the first distance; a second bonding layer arranged between the substrate and the second semiconductor stack; a third semiconductor stack arranged on the substrate, and comprising third top surface separated from the topmost surface by a third distance; and a third bonding layer arranged between the substrate and the third semiconductor stack; wherein the first semiconductor stack, the second semiconductor stack, and the third semiconductor stack are configured to emit different color lights.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: February 13, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Chien-Fu Huang, Chih-Chiang Lu, Chun-Yu Lin, Hsin-Chih Chiu
  • Publication number: 20240047604
    Abstract: A semiconductor light-emitting device comprises a substrate; a first adhesive layer on the substrate; multiple epitaxial units on the first adhesive layer; a second adhesive layer on the multiple epitaxial units; multiple first electrodes between the first adhesive layer and the multiple epitaxial units, and contacting the first adhesive layer and the multiple epitaxial units; and multiple second electrodes between the second adhesive layer and the multiple epitaxial units, and contacting the second adhesive layer and the multiple epitaxial units; wherein the multiple epitaxial units are totally separated.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Inventors: Hsin-Chih Chiu, Chih-Chiang Lu, Chun-Yu Lin, Ching-Huai Ni, Yi-Ming Chen, Tzu-Chieh Hsu, Ching-Pei Lin
  • Patent number: 11859302
    Abstract: An electroplating apparatus includes an anode and a cathode, a power supply, a regulating plate, and a controller. The power supply is electrically connected to the anode and the cathode. The regulating plate is disposed between the anode and the cathode. The regulating plate includes an insulation grid plate and a plurality of wires. The controller is electrically connected to the plurality of wires to control a state of an electromagnetic field around the plurality of wires. An electroplating method is also provided.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: January 2, 2024
    Assignee: Unimicron Technology Corp.
    Inventors: Heng-Ming Nien, Chih-Chiang Lu, Chih-Kai Chan, Shih-Lian Cheng
  • Publication number: 20230389172
    Abstract: Provided is a manufacturing method of circuit board, including a first substrate, a second substrate, a third substrate, a fourth substrate, multiple conductive structures, and a conductive via structure. The third substrate has an opening and includes a first dielectric layer. The opening penetrates the third substrate, and the first dielectric layer fills the opening. Multiple conductive structures are formed so that the first substrate, the second substrate, the third substrate, and the fourth substrate are electrically connected through the conductive structures to define a ground path. A conductive via structure is formed to penetrate the first substrate, the second substrate, the first dielectric layer of the third substrate, and the fourth substrate. The conductive via structure is electrically connected to the first substrate and the fourth substrate to define a signal path, and the ground path surrounds the signal path.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Heng-Ming Nien, Ching-Sheng Chen, Ching Chang, Ming-Ting Chang, Chi-Min Chang, Shao-Chien Lee, Jun-Rui Huang, Shih-Lian Cheng
  • Patent number: 11791436
    Abstract: A semiconductor light-emitting device comprises a substrate; a first adhesive layer on the substrate; multiple epitaxial units on the first adhesive layer; a second adhesive layer on the multiple epitaxial units; multiple first electrodes between the first adhesive layer and the multiple epitaxial units, and contacting the first adhesive layer and the multiple epitaxial units; and multiple second electrodes between the second adhesive layer and the multiple epitaxial units, and contacting the second adhesive layer and the multiple epitaxial units; wherein the multiple epitaxial units are totally separated.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: October 17, 2023
    Assignee: EPISTAR CORPORATION
    Inventors: Hsin-Chih Chiu, Chih-Chiang Lu, Chun-Yu Lin, Ching-Huai Ni, Yi-Ming Chen, Tzu-Chieh Hsu, Ching-Pei Lin
  • Patent number: 11785707
    Abstract: Provided is a circuit board, including a first substrate, a second substrate, a third substrate, a fourth substrate, multiple conductive structures, and a conductive via structure. The second substrate is disposed between the first substrate and the third substrate. The third substrate is disposed between the second substrate and the fourth substrate. The third substrate has an opening penetrating the third substrate and includes a first dielectric layer filling the opening. The conductive via structure penetrates the first substrate, the second substrate, the first dielectric layer of the third substrate, and the fourth substrate, and is electrically connected to the first substrate and the fourth substrate to define a signal path. The first substrate, the second substrate, the third substrate and the fourth substrate are electrically connected through the conductive structures to define a ground path, and the ground path surrounds the signal path.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: October 10, 2023
    Assignee: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Heng-Ming Nien, Ching-Sheng Chen, Ching Chang, Ming-Ting Chang, Chi-Min Chang, Shao-Chien Lee, Jun-Rui Huang, Shih-Lian Cheng
  • Patent number: 11737209
    Abstract: A circuit board includes a first dielectric material, a second dielectric material, a third dielectric material, a first external circuit layer, a second external circuit layer, multiple conductive structures, and a conductive via structure. Dielectric constants of the first, the second and the third dielectric materials are different. The first and the second external circuit layers are respectively disposed on the first and the third dielectric materials. The conductive via structure at least penetrates the first and the second dielectric materials and is electrically connected to the first and the second external circuit layers to define a signal path. The conductive structures are electrically connected to each other and surround the first, the second and the third dielectric materials. The conductive structures are electrically connected to the first and the second external circuit layers to define a ground path surrounding the signal path.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: August 22, 2023
    Assignee: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Chi-Min Chang, Shao-Chien Lee, Jun-Rui Huang, Ming-Ting Chang
  • Publication number: 20230262890
    Abstract: A circuit board structure includes a substrate, a first build-up structure layer, first and second external circuit layers, at least one first conductive via, and second conductive vias. The first build-up structure layer is disposed on a first circuit layer of the substrate. The first external circuit layer is disposed on the first build-up structure layer. The second external circuit layer is disposed on a second circuit layer and a portion of a third dielectric layer of the substrate. The first conductive via is electrically connected to the first external circuit layer and the second external circuit layer to define a signal path. The second conductive vias surround the first conductive via, and the first external circuit layer, the second conductive vias, the first circuit layer, the outer conductive layer, and the second external circuit layer define a first ground path. The first ground path surrounds the signal path.
    Type: Application
    Filed: September 7, 2022
    Publication date: August 17, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Chi-Min Chang, Ming-Hao Wu, Yi-Pin Lin, Tung-Chang Lin, Jun-Rui Huang
  • Publication number: 20230262893
    Abstract: A circuit board, including a first dielectric material, a second dielectric material, a third dielectric material, a fourth dielectric material, a first external circuit layer, a second external circuit layer, a conductive structure, a first conductive via, and multiple second conductive vias, is provided. The first conductive via at least passes through the first dielectric material and the fourth dielectric material, and is electrically connected to the first external circuit layer and the second external circuit layer to define a signal path. The second conductive vias pass through the first dielectric material, the second dielectric material, the third dielectric material, and a part of the conductive structure, and surround the first conductive via. The second conductive vias are electrically connected to the first external circuit layer, the conductive structure, and the second external circuit layer to define a ground path, and the ground path surrounds the signal path.
    Type: Application
    Filed: August 23, 2022
    Publication date: August 17, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Jun-Rui Huang, Ming-Hao Wu, Yi-Pin Lin, Tung-Chang Lin
  • Publication number: 20230262880
    Abstract: Provided is a circuit board structure including a substrate, a loop-wrapping ground layer, an insulating structure, a first build-up layer, a top wiring layer, a bottom wiring layer, a first conductive via, and a plurality of second conductive vias. The aforementioned structure defines a signal transmitting structure. An equivalent circuit of the signal transmitting structure at least includes a first equivalent circuit, a second equivalent circuit, a third equivalent circuit and a fourth equivalent circuit, which correspond to different uniform transmitting sections respectively. The first equivalent circuit, the second equivalent circuit, the third equivalent circuit and the fourth equivalent circuit are connected in series with each other according to an ABCD transmission matrix series connection principle.
    Type: Application
    Filed: February 1, 2023
    Publication date: August 17, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Jun-Rui Huang, Ming-Hao Wu, Tung-Chang Lin
  • Patent number: 11686008
    Abstract: An electroplating apparatus including an anode and a cathode, a power supply, and a regulating plate is provided. The power supply is electrically connected to the anode and the cathode. The regulating plate is arranged between the anode and the cathode. The regulating plate includes an insulating grid plate and a plurality of magnetic components. The plurality of magnetic components are uniformly and randomly arranged on the insulating grid plate. An electroplating method is also provided.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: June 27, 2023
    Assignee: Unimicron Technology Corp.
    Inventors: Heng-Ming Nien, Chih-Chiang Lu, Cho-Ying Wu, Shih-Lian Cheng
  • Publication number: 20230124732
    Abstract: An electroplating apparatus including an anode and a cathode, a power supply, and a regulating plate is provided. The power supply is electrically connected to the anode and the cathode. The regulating plate is arranged between the anode and the cathode. The regulating plate includes an insulating grid plate and a plurality of magnetic components. The plurality of magnetic components are uniformly and randomly arranged on the insulating grid plate. An electroplating method is also provided.
    Type: Application
    Filed: May 16, 2022
    Publication date: April 20, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Heng-Ming Nien, Chih-Chiang Lu, Cho-Ying Wu, Shih-Lian Cheng
  • Publication number: 20230124913
    Abstract: An electroplating apparatus includes an anode and a cathode, a power supply, a regulating plate, and a controller. The power supply is electrically connected to the anode and the cathode. The regulating plate is disposed between the anode and the cathode. The regulating plate includes an insulation grid plate and a plurality of wires. The controller is electrically connected to the plurality of wires to control a state of an electromagnetic field around the plurality of wires. An electroplating method is also provided.
    Type: Application
    Filed: March 28, 2022
    Publication date: April 20, 2023
    Applicant: Unimicron Technology Corp.
    Inventors: Heng-Ming Nien, Chih-Chiang Lu, Chih-Kai Chan, Shih-Lian Cheng
  • Patent number: 11574585
    Abstract: A light-emitting unit includes a multilayer circuit structure, a plurality of display pixels, and at least one compensation pixel. The multilayer circuit structure includes a top circuit layer and a bottom circuit layer. The display pixels are arranged into an N×M pixel array along a first direction and a second direction. Each of the display pixels includes a plurality of sub-pixels. The sub-pixels are disposed on the top circuit layer of the multilayer circuit structure. The compensation pixel is disposed on the top circuit layer of the multilayer circuit structure and electrically bonded to the multilayer circuit structure. The compensation pixel is located between the display pixels. The number of the compensation pixel is less than the number of the display pixels. Extension lines in the first direction and the second direction do not pass through the compensation pixel. A display apparatus is also provided.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: February 7, 2023
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Po-Jen Su, Gwo-Jiun Sheu, Chih-Chiang Lu
  • Patent number: 11425178
    Abstract: Techniques for low latency streaming, for example in a broadcasting environment, are described herein. In some examples, a playlist may include both currently encoded segments, which are segments that are fully encoded at or before playlist generation, and also future encoded segments, which are segments that have not yet been fully encoded at playlist generation. In some cases, the inclusion of future encoded segments in a playlist may result in a player requesting a segment that has not yet been fully encoded at the time that the request is received by the server. In some examples, even though the segment is not yet fully encoded, the server may nevertheless save and process the request, for example by transmitting encoded portions of the requested segment as those portions are made available by the encoder.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 23, 2022
    Assignee: Twitch Interactive, Inc.
    Inventors: Yueshi Shen, Martin Hess, Shawn Hsu, Eran Ambar, Abhinav Kapoor, Jorge Arturo Villatoro, Spencer Nelson, Jeffrey Garneau, Cyrus Hall, Jyotindra Vasudeo, Andrew Francis, Yuechuan Li, Chih-Chiang Lu
  • Publication number: 20220240369
    Abstract: A circuit board includes a first dielectric material, a second dielectric material, a third dielectric material, a first external circuit layer, a second external circuit layer, multiple conductive structures, and a conductive via structure. Dielectric constants of the first, the second and the third dielectric materials are different. The first and the second external circuit layers are respectively disposed on the first and the third dielectric materials. The conductive via structure at least penetrates the first and the second dielectric materials and is electrically connected to the first and the second external circuit layers to define a signal path. The conductive structures are electrically connected to each other and surround the first, the second and the third dielectric materials. The conductive structures are electrically connected to the first and the second external circuit layers to define a ground path surrounding the signal path.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 28, 2022
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Chi-Min Chang, Shao-Chien Lee, Jun-Rui Huang, Ming-Ting Chang
  • Publication number: 20220232694
    Abstract: Provided is a circuit board, including a first substrate, a second substrate, a third substrate, a fourth substrate, multiple conductive structures, and a conductive via structure. The second substrate is disposed between the first substrate and the third substrate. The third substrate is disposed between the second substrate and the fourth substrate. The third substrate has an opening penetrating the third substrate and includes a first dielectric layer filling the opening. The conductive via structure penetrates the first substrate, the second substrate, the first dielectric layer of the third substrate, and the fourth substrate, and is electrically connected to the first substrate and the fourth substrate to define a signal path. The first substrate, the second substrate, the third substrate and the fourth substrate are electrically connected through the conductive structures to define a ground path, and the ground path surrounds the signal path.
    Type: Application
    Filed: October 8, 2021
    Publication date: July 21, 2022
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Heng-Ming Nien, Ching-Sheng Chen, Ching Chang, Ming-Ting Chang, Chi-Min Chang, Shao-Chien Lee, Jun-Rui Huang, Shih-Lian Cheng
  • Publication number: 20220232695
    Abstract: A circuit board includes a first substrate, a second substrate, a third substrate, a plurality of conductive structures and a conductive via structure. The second substrate is disposed between the first substrate and the third substrate. The third substrate has an opening and includes a first dielectric layer, a second dielectric layer, and a third dielectric layer. The opening penetrates the first dielectric layer and the second dielectric layer, and the third dielectric layer fully fills the opening. The conductive via structure penetrates the first substrate, the second substrate, the third dielectric layer of the third substrate, and is electrically connected to the first substrate and the third substrate to define a signal path. The first substrate, the second substrate, and the third substrate are electrically connected through the conductive structures to define a ground path, and the ground path surrounds the signal path.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 21, 2022
    Applicant: Unimicron Technology Corp.
    Inventors: Jun-Rui Huang, Chih-Chiang Lu, Yi-Pin Lin, Ching-Sheng Chen
  • Publication number: 20220230949
    Abstract: A circuit board includes a first external circuit layer, a first substrate, a second substrate, a third substrate, and a conductive through hole structure. The first substrate includes conductive pillars electrically connecting the first external circuit layer and the second substrate. The second substrate has an opening and includes a first dielectric layer. The opening penetrates the second substrate, and the first dielectric layer fills the opening. The third substrate includes an insulating layer, a second external circuit layer, and conductive holes. A conductive material layer of the conductive through hole structure covers an inner wall of a through hole and electrically connects the first and the second external circuit layers to define a signal path. The first external circuit layer, the conductive pillars, the second substrate, the conductive holes and the second external circuit layer are electrically connected to define a ground path surrounding the signal path.
    Type: Application
    Filed: October 12, 2021
    Publication date: July 21, 2022
    Applicant: Unimicron Technology Corp.
    Inventors: Chih-Chiang Lu, Hsin-Ning Liu, Jun-Rui Huang, Pei-Wei Wang, Ching Sheng Chen, Shih-Lian Cheng
  • Patent number: 11349047
    Abstract: This disclosure discloses a light-emitting device. The light-emitting device includes a light-emitting stack having a first-type semiconductor layer, a second-type semiconductor layer, and an active layer formed between the first-type semiconductor layer and the second-type semiconductor layer; and a reflective structure formed on the first-type semiconductor layer and having a first interface and a second interface. A critical angle at the first interface for a light emitted from the light-emitting stack is larger than that at the second interface. The reflective structure electrically connects to the first-type semiconductor layer at the first interface, and an area of the first interface is more than an area of the second interface in a top view.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: May 31, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Yi-Ming Chen, Hao-Min Ku, Chih-Chiang Lu, Tzu-Chieh Hsu