Patents by Inventor Cheng-Kuang Yang

Cheng-Kuang Yang 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: 11808436
    Abstract: A light emitting apparatus, including: a first light emitting device with a first substrate having a first upper surface and first bottom surface, a plurality of first LED chips disposed on the first upper surface, emitting a light penetrating the first substrate, and a first wavelength conversion layer directly contacting the plurality of first LED chips and first upper surface, and a first shape in a cross-sectional view; a second wavelength conversion layer directly contacting the first bottom surface; a second shape in the cross-sectional view substantially the same as the first shape; a second light emitting device separated from the first light emitting device, including a second substrate and plurality of second LEDs disposed on the second substrate; a support base connected to the first light emitting device by a first angle and connected to the second light emitting device by a second angle; and a first support arranged between the support base and first light emitting device.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: November 7, 2023
    Assignee: EPISTAR CORPORATION
    Inventors: Chi-Chih Pu, Chen-Hong Lee, Shih-Yu Yeh, Wei-Kang Cheng, Shyi-Ming Pan, Siang-Fu Hong, Chih-Shu Huang, Tzu-Hsiang Wang, Shih-Chieh Tang, Cheng-Kuang Yang
  • Publication number: 20220178527
    Abstract: A light emitting apparatus, including: a first light emitting device with a first substrate having a first upper surface and first bottom surface, a plurality of first LED chips disposed on the first upper surface, emitting a light penetrating the first substrate, and a first wavelength conversion layer directly contacting the plurality of first LED chips and first upper surface, and a first shape in a cross-sectional view; a second wavelength conversion layer directly contacting the first bottom surface; a second shape in the cross-sectional view substantially the same as the first shape; a second light emitting device separated from the first light emitting device, including a second substrate and plurality of second LEDs disposed on the second substrate; a support base connected to the first light emitting device by a first angle and connected to the second light emitting device by a second angle; and a first support arranged between the support base and first light emitting device.
    Type: Application
    Filed: February 21, 2022
    Publication date: June 9, 2022
    Inventors: CHI-CHIH PU, CHEN-HONG LEE, SHIH-YU YEH, WEI-KANG CHENG, SHYI-MING PAN, SIANG-FU HONG, CHIH-SHU HUANG, TZU-HSIANG WANG, SHIH-CHIEH TANG, CHENG-KUANG YANG
  • Patent number: 11255524
    Abstract: A light-emitting device including a substrate with a top surface and a bottom surface opposite to the top surface and a plurality of LED chips disposed on the top surface and configured to generate a top light visible above the top surface and a bottom light visible beneath the bottom surface, each LED chip comprising a plurality of light-emitting surfaces. The substrate has a thickness greater than 200 ?m and comprises aluminum oxide, sapphire, glass, plastic, or rubber. The plurality of LED chips has an incident light with a wavelength of 420-470 nm. The top light and the bottom light have a color temperature difference of not greater than 1500K.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 22, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Chi-Chih Pu, Chen-Hong Lee, Shih-Yu Yeh, Wei-Kang Cheng, Shyi-Ming Pan, Siang-Fu Hong, Chih-Shu Huang, Tzu-Hsiang Wang, Shih-Chieh Tang, Cheng-Kuang Yang
  • Patent number: 10961113
    Abstract: A CMOS single chip includes a movable film, at least one support pillar, a base metal layer and a circuit integration. The movable film is disposed on a top layer of the CMOS single chip and has a plurality of through-vias. The support pillar is disposed under the movable film to provide a supporting force of the movable film. The base metal layer is formed under the support pillars and isolated from the support pillars, and faces towards the movable film to form a micro capacitor to sense one of the outside sensing signals. The area of the base metal layer is larger than the area of the movable film. The circuit integration is formed under the base metal layer, or formed under the base metal layer and on the side of the movable film, and connected to the movable film and the base metal layer.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 30, 2021
    Inventors: Chien-Chang Chen, Yi-Der Liang, Shiao-Yi Lin, Cheng-Kuang Yang
  • Publication number: 20200292157
    Abstract: A light-emitting device including a substrate with a top surface and a bottom surface opposite to the top surface and a plurality of LED chips disposed on the top surface and configured to generate a top light visible above the top surface and a bottom light visible beneath the bottom surface, each LED chip comprising a plurality of light-emitting surfaces. The substrate has a thickness greater than 200 ?m and comprises aluminum oxide, sapphire, glass, plastic, or rubber. The plurality of LED chips has an incident light with a wavelength of 420-470 nm. The top light and the bottom light have a color temperature difference of not greater than 1500K.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: CHI-CHIH PU, CHEN-HONG LEE, SHIH-YU YEH, WEI-KANG CHENG, SHYI-MING PAN, SIANG-FU HONG, CHIH-SHU HUANG, TZU-HSIANG WANG, SHIH-CHIEH TANG, CHENG-KUANG YANG
  • Patent number: 10670244
    Abstract: The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180°, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 2, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chi-Chih Pu, Chen-Hong Lee, Shih-Yu Yeh, Wei-Kang Cheng, Shyi-Ming Pan, Siang-Fu Hong, Chih-Shu Huang, Tzu-Hsiang Wang, Shih-Chieh Tang, Cheng-Kuang Yang
  • Patent number: 10658547
    Abstract: A light emitting diode (LED) structure including a stacked semiconductor layer, a contact layer and a dielectric reflective layer is provided. The stacked semiconductor layer includes a first type doped layer, a second type doped layer and an active layer disposed between the first type doped layer and the second type doped layer, wherein the first type doped layer, the active layer and the second type doped layer are penetrated by a plurality of recesses. The contact layer is disposed on the second type doped layer. The dielectric reflective layer is disposed on the contact layer and extended into the recesses to connect the contact layer and the first type doped layer with a coverage rate equal to or less than 60% from a top view of the LED structure.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 19, 2020
    Assignee: Epistar Corporation
    Inventors: Cheng-Kuang Yang, Hui-Ching Feng, Chien-Pin Hsu, Kuo-Hui Yu, Shyi-Ming Pan
  • Patent number: 10562760
    Abstract: The present invention disclosed a micro acoustic collector with a lateral cavity, comprising: a base metal layer; a movable film, an annular side wall; a lateral metal layer. The movable film faces towards the base metal layer to form a hollow space. The lateral metal layer is formed at a side of the movable film and around the movable film, fixed by the annular side wall and spaced apart from peripheral of the movable film by a distance, and the lateral metal layer faces towards the base metal layer to form a lateral cavity to assist an acoustic collection.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 18, 2020
    Inventors: Chien-Chang Chen, Yi-Der Liang, Shiao-Yi Lin, Cheng-Kuang Yang
  • Patent number: 10562759
    Abstract: The present invention disclosed a micro acoustic collector and CMOS microphone single chip. The micro acoustic collector comprising: a plurality of leaf-shaped structures annularly arranged with symmetry, each of the plurality of leaf-shaped structure having a suspended arm and a restrained arm, and the suspended arm of the plurality of leaf-shaped structures connected to a suspended fulcrum, and a plurality of through-vias formed in the suspended fulcrum and the plurality of leaf-shaped structures; a plurality of support pillars uniformly disposed under edges of the plurality of leaf-shaped structures corresponding to the restrained arms and the suspend arms; and a base metal layer formed under and insulated from the plurality of support pillars, and facing towards the inner-annular-supported acoustic collection film to form a hollow space.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 18, 2020
    Inventors: Chien-Chang Chen, Yi-Der Liang, Shiao-Yi Lin, Cheng-Kuang Yang
  • Publication number: 20190219252
    Abstract: The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180°, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: CHI-CHIH PU, CHEN-HONG LEE, SHIH-YU YEH, WEI-KANG CHENG, SHYI-MING PAN, SIANG-FU HONG, CHIH-SHU HUANG, TZU-HSIANG WANG, SHIH-CHIEH TANG, CHENG-KUANG YANG
  • Patent number: 10247395
    Abstract: The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180°, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: April 2, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Chi-Chih Pu, Chen-Hong Lee, Shih-Yu Yeh, Wei-Kang Cheng, Shyi-Ming Pan, Siang-Fu Hong, Chih-Shu Huang, Tzu-Hsiang Wang, Shih-Chieh Tang, Cheng-Kuang Yang
  • Publication number: 20180342650
    Abstract: A light emitting diode (LED) structure including a stacked semiconductor layer, a contact layer and a dielectric reflective layer is provided. The stacked semiconductor layer includes a first type doped layer, a second type doped layer and an active layer disposed between the first type doped layer and the second type doped layer, wherein the first type doped layer, the active layer and the second type doped layer are penetrated by a plurality of recesses. The contact layer is disposed on the second type doped layer. The dielectric reflective layer is disposed on the contact layer and extended into the recesses to connect the contact layer and the first type doped layer with a coverage rate equal to or less than 60% from a top view of the LED structure.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Inventors: Cheng-Kuang Yang, Hui-Ching Feng, Chien-Pin Hsu, Kuo-Hui Yu, Shyi-Ming Pan
  • Patent number: 10074777
    Abstract: A light emitting diode (LED) structure including a stacked semiconductor layer, a contact layer and a dielectric reflective layer is provided. The stacked semiconductor layer includes a first type doped layer, a second type doped layer and an active layer disposed between the first type doped layer and the second type doped layer, wherein the first type doped layer, the active layer and the second type doped layer are penetrated by a plurality of recesses. The contact layer is disposed on the second type doped layer. The dielectric reflective layer is disposed on the contact layer and extended into the recesses to connect the contact layer and the first type doped layer with a coverage rate equal to or less than 60% from a top view of the LED structure.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: September 11, 2018
    Assignee: Epistar Corporation
    Inventors: Cheng-Kuang Yang, Hui-Ching Feng, Chien-Pin Hsu, Kuo-Hui Yu, Shyi-Ming Pan
  • Patent number: 9902610
    Abstract: A support pillar is formed under a movable film for support. The support pillar includes a plurality of first metal micropillars, a base metal connection pillar layer and a first oxide encapsulation layer. The first metal micropillars are formed under the movable film and conductively connected to the movable film via metal connection. The base metal connection pillar layer is formed under the first metal micropillars and conductively connected to the first metal micropillars. The first oxide encapsulation layer fully or partially encapsulates the first metal micropillars to insulate the first metal micropillars from air, and shape the support pillar into a column shape.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: February 27, 2018
    Inventors: Chien-Chan Chen, Yi-Der Liang, Shiao-Yi Lin, Cheng-Kuang Yang
  • Publication number: 20170355592
    Abstract: The present invention disclosed a CMOS sensing component, a CMOS single chip and a method of manufacturing the same. The CMOS single chip comprises a movable film, at least one support pillar, a base metal layer and a circuit integration. The movable film is disposed on a top layer of the CMOS single chip and has a plurality of through-vias. The support pillar is disposed under the movable film to provide a supporting force of the movable film. The base metal layer is formed under the support pillars and isolated from the support pillars, and faces towards the movable film to form a micro capacitor to sense one of the outside sensing signals, the area of the base metal layer larger than the area of the movable film.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Chien-Chang CHEN, Yi-Der LIANG, Shiao-Yi LIN, Cheng-Kuang YANG
  • Publication number: 20170330868
    Abstract: The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180° , and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 16, 2017
    Inventors: CHI-CHIH PU, CHEN-HONG LEE, SHIH-YU YEH, WEI-KANG CHENG, SHYI-MING PAN, SIANG-FU HONG, CHIH-SHU HUANG, TZU-HSIANG WANG, SHIH-CHIEH TANG, CHENG-KUANG YANG
  • Publication number: 20170313576
    Abstract: The present invention disclosed a micro acoustic collector with a lateral cavity, comprising: a base metal layer; a movable film, an annular side wall; a lateral metal layer. The movable film faces towards the base metal layer to form a hollow space. The lateral metal layer is formed at a side of the movable film and around the movable film, fixed by the annular side wall and spaced apart from peripheral of the movable film by a distance, and the lateral metal layer faces towards the base metal layer to form a lateral cavity to assist an acoustic collection.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 2, 2017
    Inventors: Chien-Chang CHEN, Yi-Der LIANG, Shiao-Yi LIN, Cheng-Kuang YANG
  • Publication number: 20170313575
    Abstract: The present invention disclosed a micro acoustic collector and CMOS microphone single chip. The micro acoustic collector comprising: a plurality of leaf-shaped structures annularly arranged with symmetry, each of the plurality of leaf-shaped structure having a suspended arm and a restrained arm, and the suspended arm of the plurality of leaf-shaped structures connected to a suspended fulcrum, and a plurality of through-vias formed in the suspended fulcrum and the plurality of leaf-shaped structures; a plurality of support pillars uniformly disposed under edges of the plurality of leaf-shaped structures corresponding to the restrained arms and the suspend arms; and a base metal layer formed under and insulated from the plurality of support pillars, and facing towards the inner-annular-supported acoustic collection film to form a hollow space.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 2, 2017
    Inventors: Chien-Chang CHEN, Yi-Der LIANG, Shiao-Yi LIN, Cheng-Kuang YANG
  • Patent number: 9741699
    Abstract: The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180°, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: August 22, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Chi-Chih Pu, Chen-Hong Lee, Shih-Yu Yeh, Wei-Kang Cheng, Shyi-Ming Pan, Siang-Fu Hong, Chih-Shu Huang, Tzu-Hsiang Wang, Shih-Chieh Tang, Cheng-Kuang Yang
  • Publication number: 20160332865
    Abstract: A support pillar is formed under a movable film for support. The support pillar includes a plurality of first metal micropillars, a base metal connection pillar layer and a first oxide encapsulation layer. The first metal micropillars are formed under the movable film and conductively connected to the movable film via metal connection. The base metal connection pillar layer is formed under the first metal micropillars and conductively connected to the first metal micropillars. The first oxide encapsulation layer fully or partially encapsulates the first metal micropillars to insulate the first metal micropillars from air, and shape the support pillar into a column shape.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 17, 2016
    Inventors: Chien-Chan CHEN, Yi-Der LIANG, Shiao-Yi LIN, Cheng-Kuang YANG