Patents by Inventor Chi-Ying Chiu

Chi-Ying Chiu 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: 7781785
    Abstract: The present invention discloses a light emitting diode having a mirror and a permanent substrate plated thereon. The present invention also discloses a method for producing such light emitting diode. The permanent substrate and the mirror are formed after both electrodes are completed. Accordingly, the epitaxial structure and the mirror will not be damaged, and brightness and heat dissipation of the light emitting device are improved.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: August 24, 2010
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Shao-Hua Huang, Chi-Ying Chiu, Yann-Jyh Chiang
  • Patent number: 7319248
    Abstract: The present invention discloses a high brightness light emitting diode. The light emitting diode primarily includes a permanent substrate, a reflective mirror formed on said permanent substrate, an n-type cladding layer formed on said reflective mirror, and defining a higher port and a lower port on an upper surface thereof, an active layer with quantum well structure formed on said higher port of said n-type cladding layer, a p-type cladding layer formed on said active layer, a p-GaP layer formed on said p-type cladding layer, a metal contact layer formed on said GaP layer, a p-type ohmic contact electrode formed on said metal contact layer, and an n-type ohmic contact electrode formed on said lower port of said n-type cladding layer. By providing a gallium phosphide window and a reflective mirror, brightness of the LED can be promoted.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: January 15, 2008
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Yann-Jyh Chiang, Chi-Ying Chiu
  • Patent number: 7061065
    Abstract: The present invention discloses an LED (light emitting diode), which primarily includes a transparent window, such as a glass substrate, an LED epitaxial layer including at least an active layer, and a transparent conductive film formed between the transparent window and the LED epitaxial layer. The transparent conductive film can be oxides, nitrides or fluorides of metals, for example, ITO, InO, SnO, ZnO, etc. By involving the transparent conductive film, current spreading is improved and resistance is reduced because of larger cross section areas provided, particularly compared with the conventional spin on glass or polymer adhesives. Additionally, light-emitting efficiency can be improved since the conventional opaque substrate, such as a GaAs substrate on which the active layer is grown can be etched away after the transparent window and the active layer are combined with the transparent conductive film.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: June 13, 2006
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chi-Ying Chiu
  • Patent number: 6964878
    Abstract: The present invention discloses a method for producing an LED (light emitting diode), in which a transparent conductive film is formed between a transparent window and the front surface of a LED epitaxial layer. The transparent conductive film can be oxides, nitrides or fluorides of metals. The transparent conductive film can be preliminarily formed on one of the transparent window and the LED epitaxial layer or both of them by a suitable process, for example, thermal pressure. By involving the transparent conductive film, current spreading is improved and resistance is reduced because of larger cross section areas provided, particularly compared with the conventional spin on glass or polymer adhesives. Additionally, light-emitting efficiency can be improved since the conventional opaque substrate, such as a GaAs substrate.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: November 15, 2005
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chi-Ying Chiu
  • Publication number: 20050191777
    Abstract: The present invention discloses a method for producing a light emitting diode with a mirror and a plated substrate. The mirror and the plated substrate are formed after both electrodes are completed. Accordingly, the epitaxial structure and the mirror will not be damaged, and brightness and heat dissipation of the light emitting device are improved.
    Type: Application
    Filed: May 4, 2005
    Publication date: September 1, 2005
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Shao-Hua Huang, Chi-Ying Chiu, Yann-Jyh Chiang
  • Publication number: 20050062061
    Abstract: The present invention discloses a high brightness light emitting diode. The light emitting diode primarily includes a permanent substrate, a reflective mirror formed on said permanent substrate, an n-type cladding layer formed on said reflective mirror, and defining a higher port and a lower port on an upper surface thereof, an active layer with quantum well structure formed on said higher port of said n-type cladding layer, a p-type cladding layer formed on said active layer, a p-GaP layer formed on said p-type cladding layer, a metal contact layer formed on said GaP layer, a p-type ohmic contact electrode formed on said metal contact layer, and an n-type ohmic contact electrode formed on said lower port of said n-type cladding layer. By providing a gallium phosphide window and a reflective mirror, brightness of the LED can be promoted.
    Type: Application
    Filed: July 14, 2004
    Publication date: March 24, 2005
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Yann-Jyh Chiang, Chi-Ying Chiu
  • Publication number: 20050032383
    Abstract: The present invention discloses a method for producing an LED (light emitting diode), in which a transparent conductive film is formed between a transparent window and the front surface of a LED epitaxial layer. The transparent conductive film can be oxides, nitrides or fluorides of metals. The transparent conductive film can be preliminarily formed on one of the transparent window and the LED epitaxial layer or both of them by a suitable process, for example, thermal pressure. By involving the transparent conductive film, current spreading is improved and resistance is reduced because of larger cross section areas provided, particularly compared with the conventional spin on glass or polymer adhesives. Additionally, light-emitting efficiency can be improved since the conventional opaque substrate, such as a GaAs substrate.
    Type: Application
    Filed: September 8, 2004
    Publication date: February 10, 2005
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chi-Ying Chiu
  • Patent number: 6806112
    Abstract: The present invention discloses a high brightness light emitting diode and a method for producing the same. The light emitting diode includes a gallium phosphide window and a reflective mirror so as to promote brightness thereof. To produce the light emitting diode, a glass substrate is bonded to the main structure of the light emitting diode and then the temporary substrate for epitaxing thereon can be removed for depositing a reflective mirror. After bonding a permanent substrate below the reflective mirror, the glass substrate is removed, too. By means of the double-bonding process, reflectivity of the mirror is maintained in the present invention.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: October 19, 2004
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Yann-Jyh Chiang, Chi-Ying Chiu
  • Publication number: 20040188791
    Abstract: The present invention discloses an LED (light emitting diode), which primarily includes a transparent window, such as a glass substrate, an LED epitaxial layer including at least an active layer, and a transparent conductive film formed between the transparent window and the LED epitaxial layer. The transparent conductive film can be oxides, nitrides or fluorides of metals, for example, ITO, InO, SnO, ZnO, etc. By involving the transparent conductive film, current spreading is improved and resistance is reduced because of larger cross section areas provided, particularly compared with the conventional spin on glass or polymer adhesives. Additionally, light-emitting efficiency can be improved since the conventional opaque substrate, such as a GaAs substrate on which the active layer is grown can be etched away after the transparent window and the active layer are combined with the transparent conductive film.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chi-Ying Chiu
  • Publication number: 20040079951
    Abstract: The present invention discloses a light emitting diode having a mirror and a permanent substrate plated thereon. The present invention also discloses a method for producing such light emitting diode. The permanent substrate and the mirror are formed after both electrodes are completed. Accordingly, the epitaxial structure and the mirror will not be damaged, and brightness and heat dissipation of the light emitting device are improved.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 29, 2004
    Inventors: Ray-Hua Horng, Dong-Sing Wu, Shao-Hua Huang, Chi-Ying Chiu, Yann-Jyh Chiang