Patents by Inventor Chun-Ju Tun

Chun-Ju Tun 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: 10306714
    Abstract: A semiconductor component including a Wheatstone bridge rectifying circuit and a transistor is provided, wherein the Wheatstone bridge rectifying circuit and the transistor are formed on a same growth substrate, and wherein the Wheatstone bridge rectifying circuit includes a first rectifying diode; a second rectifying diode electrically connected to the first rectifying diode; a third rectifying diode electrically connected to the second rectifying diode; and a fourth rectifying diode electrically connected to the third rectifying diode.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 28, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Chih-Shu Huang, Chun-Ju Tun, Shyi-Ming Pan, Wei-Kang Cheng, Keng-Ying Liao
  • Publication number: 20170325303
    Abstract: A semiconductor component including a Wheatstone bridge rectifying circuit and a transistor is provided, wherein the Wheatstone bridge rectifying circuit and the transistor are formed on a same growth substrate, and wherein the Wheatstone bridge rectifying circuit includes a first rectifying diode; a second rectifying diode electrically connected to the first rectifying diode; a third rectifying diode electrically connected to the second rectifying diode; and a fourth rectifying diode electrically connected to the third rectifying diode.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 9, 2017
    Inventors: Chih-Shu HUANG, Chun-Ju TUN, Shyi-Ming PAN, Wei-Kang CHENG, Keng-Ying LIAO
  • Patent number: 9661698
    Abstract: A light emitting device including a light emitting component is provided, wherein said light emitting comprising an integrated light emitting diode and a semiconductor field effect transistor. The semiconductor field effect transistor may prevent situations such as overheating and voltage instability by controlling a current passing through the light emitting diode as well as enhancing the ability to withstand electrostatic discharge and reducing cost of the light emitting device in multiple aspects.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: May 23, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Chih-Shu Huang, Chun-Ju Tun, Shyi-Ming Pan, Wei-Kang Cheng, Keng-Ying Liao
  • Patent number: 9583573
    Abstract: A compound semiconductor device is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region; a semiconductor layer disposed on the substrate; and a buffer layer located between said substrate and said semiconductor layer; wherein doping conditions of said first doped region and said second doped region are different from each other; wherein said semiconductor layer has different thicknesses on locations corresponding to said first doped region and said second doped region respectively, and is formed as a structure with difference in thickness.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 28, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Chun-Ju Tun, Yi-Chao Lin, Chen-Fu Chiang, Cheng-Huang Kuo
  • Patent number: 9220135
    Abstract: A light emitting device including a light emitting component is provided, wherein said light emitting comprising an integrated light emitting diode and a semiconductor field effect transistor. The semiconductor field effect transistor may prevent situations such as overheating and voltage instability by controlling a current passing through the light emitting diode as well as enhancing the ability to withstand electrostatic discharge and reducing cost of the light emitting device in multiple aspects.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: December 22, 2015
    Assignee: Formosa Epitaxy Incorporation
    Inventors: Chih-Shu Huang, Chun-Ju Tun, Shyi-Ming Pan, Wei-Kang Cheng, Keng-Ying Liao
  • Patent number: 9142621
    Abstract: A compound semiconductor device and method of fabricating the same according to the present invention is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region, and a semiconductor layer disposed on the substrate, wherein doping conditions of said first doped region and said second doped region may be different from each other.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 22, 2015
    Assignee: Formosa Epitaxy Incorporation
    Inventors: Chun-Ju Tun, Yi-Chao Lin, Chen-Fu Chiang, Cheng-Huang Kuo
  • Publication number: 20150061526
    Abstract: A light emitting device including a light emitting component is provided, wherein said light emitting comprising an integrated light emitting diode and a semiconductor field effect transistor. The semiconductor field effect transistor may prevent situations such as overheating and voltage instability by controlling a current passing through the light emitting diode as well as enhancing the ability to withstand electrostatic discharge and reducing cost of the light emitting device in multiple aspects.
    Type: Application
    Filed: October 24, 2014
    Publication date: March 5, 2015
    Inventors: Chih-Shu Huang, Chun-Ju Tun, Shyi-Ming Pan, Wei-Kang Cheng, Keng-Ying Liao
  • Publication number: 20150053997
    Abstract: A compound semiconductor device and method of fabricating the same according to the present invention is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region, and a semiconductor layer disposed on the substrate, wherein doping conditions of said first doped region and said second doped region may be different from each other.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventors: CHUN-JU TUN, YI-CHAO LIN, CHEN-FU CHIANG, CHENG-HUANG KUO
  • Publication number: 20140061860
    Abstract: A compound semiconductor device and method of fabricating the same according to the present invention is disclosed. The compound semiconductor device comprises a substrate having at least a first doped region and at least a second doped region, and a semiconductor layer disposed on the substrate, wherein doping conditions of said first doped region and said second doped region may be different from each other.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Applicant: FORMOSA EPITAXY INCORPORATED
    Inventors: CHUN-JU TUN, YI-CHAO LIN, CHEN-FU CHIANG, CHENG-HUANG KUO
  • Patent number: 8173462
    Abstract: A manufacturing method of a nitride crystalline film includes following steps. First, a substrate is provided. Next, a first nitride crystalline film is formed on the substrate. A patterned mask is then formed on the first nitride crystalline film. The patterned mask covers a first part of the first nitride crystalline film and exposes a second part of the first nitride crystalline film. Afterwards, the second part is etched, and the first part is maintained. After that, the patterned mask is removed. The first part is then etched to form a plurality of nitride crystal nuclei. Next, a second nitride crystalline film is formed on the substrate, and the second nitride crystalline film is made to cover the nitride crystal nuclei. A nitride film and a substrate structure are also provided.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: May 8, 2012
    Assignee: National Central University
    Inventors: Cheng-Huang Kuo, Chi-Wen Kuo, Chun-Ju Tun
  • Publication number: 20100119845
    Abstract: A manufacturing method of a nitride crystalline film includes following steps. First, a substrate is provided. Next, a first nitride crystalline film is formed on the substrate. A patterned mask is then formed on the first nitride crystalline film. The patterned mask covers a first part of the first nitride crystalline film and exposes a second part of the first nitride crystalline film. Afterwards, the second part is etched, and the first part is maintained. After that, the patterned mask is removed. The first part is then etched to form a plurality of nitride crystal nuclei. Next, a second nitride crystalline film is formed on the substrate, and the second nitride crystalline film is made to cover the nitride crystal nuclei. A nitride film and a substrate structure are also provided.
    Type: Application
    Filed: March 6, 2009
    Publication date: May 13, 2010
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Cheng-Huang Kuo, Chi-Wen Kuo, Chun-Ju Tun