Patents by Inventor Shao-Hua Huang

Shao-Hua Huang 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: 7026181
    Abstract: The present invention relates to a method for forming LED. In the present invention, LED dies are defined by photolithography and etching processes to replace a cutting step, and a metal substrate of the LED is formed by chemical or physical method.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: April 11, 2006
    Assignee: Advanced Epitaxy Technology
    Inventors: Jan-Der Guo, Wen-Chung Tsai, Tsung-Yu Chen, Shao-Hua Huang
  • Publication number: 20050272176
    Abstract: The present invention relates to a method for forming LED. In the present invention, LED dies are defined by photolithography and etching processes to replace a cutting step, and a metal substrate of the LED is formed by chemical or physical method.
    Type: Application
    Filed: August 1, 2005
    Publication date: December 8, 2005
    Inventors: Jan-Der Guo, Wen-Chung Tsai, Tsung-Yu Chen, Shao-Hua Huang
  • Patent number: 6969626
    Abstract: The present invention relates to a method for forming LED. In the present invention, LED dies are defined by photolithography and etching processes to replace a cutting step, and a metal substrate of the LED is formed by chemical or physical method.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: November 29, 2005
    Assignee: Advanced Epitaxy Technology
    Inventors: Jan-Der Guo, Wen-Chung Tsai, Tsung-Yu Chen, Shao-Hua Huang
  • Patent number: 6967117
    Abstract: The present invention discloses a method for producing a high brightness LED (light emitting diode). The method primarily comprises steps of: a) providing a temporary substrate for epitaxy; b) forming LED epitaxial layers on said temporary substrate, wherein said LED epitaxial layers with pn junction; c) providing a permanent substrate; d) forming a layered structure between said permanent substrate and said LED epitaxial layers, wherein said layered structure has properties of reflection, adhesion, diffusion barrier and buffer; and e) forming a first electrode and a second electrode on proper position to supply enough energy for said LED epitaxial layers. The LED manufactured in accordance with the present invention can exhibit high brightness and excellent mechanical strength during manufacturing.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: November 22, 2005
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang
  • 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: 20050176162
    Abstract: The present invention relates to a method for forming LED. In the present invention, LED dies are defined by photolithography and etching processes to replace a cutting step, and a metal substrate of the LED is formed by chemical or physical method.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 11, 2005
    Inventors: Jan-Der Guo, Wen-Chung Tsai, Tsung-Yu Chen, Shao-Hua Huang
  • 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
  • Publication number: 20040259281
    Abstract: The present invention discloses a method for producing a high brightness LED (light emitting diode). The method primarily comprises steps of: a) providing a temporary substrate for epitaxy; b) forming LED epitaxial layers on said temporary substrate, wherein said LED epitaxial layers with pn junction; c) providing a permanent substrate; d) forming a layered structure between said permanent substrate and said LED epitaxial layers, wherein said layered structure has properties of reflection, adhesion, diffusion barrier and buffer; and e) forming a first electrode and a second electrode on proper position to supply enough energy for said LED epitaxial layers. The LED manufactured in accordance with the present invention can exhibit high brightness and excellent mechanical strength during manufacturing.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 23, 2004
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang
  • 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: 20040130263
    Abstract: The present invention discloses a high brightness LED (light emitting diode) and a method for producing the same. The LED of the present invention primarily includes a permanent substrate, LED epitaxial layers with a p-n or n-p junction structure, a layered structure formed between the permanent substrate and the LED epitaxial layers, a first electrode and a second electrode. The layered structure may include single layer, two layers or three layers. For the three layers structure, a reflective layer, a diffusion barrier and a buffer layer are usually included. These layers may be electrically conductive and formed by one or more thin films. Accordingly, the LED of the present invention can exhibit high brightness and excellent mechanical strength during manufacturing.
    Type: Application
    Filed: January 2, 2003
    Publication date: July 8, 2004
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang
  • Patent number: 6759685
    Abstract: The present invention discloses a high-brightness light emitting diode (LED), which primarily includes a LED epitaxial layer with a reflective layer and a Si substrate with an adhesive layer. The LED epitaxial layer is bonded with the Si substrate by attaching the reflective layer and the adhesive layer. An n-type ohmic contact electrode and a p-type ohmic contact electrode are deposed on the front side of the LED. In the present invention, the reflective layer, the adhesive layer and the ohmic contact electrodes preferably perform single function, so that the most appropriate materials can be applied. Therefore, the LED of the present invention can exhibit excellent brightness.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: July 6, 2004
    Assignee: National Chung-Hsing University
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chih-Ru Chung, Juin-Jer Yang
  • 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
  • Publication number: 20030087463
    Abstract: The present invention discloses a method for producing a high-brightness light emitting diode (LED), which primarily includes at least one step of bonding a reflective layer formed on an LED epitaxial layer to an adhesive layer formed on an Si substrate. An n-type ohmic contact electrode and a p-type ohmic contact electrode are deposed on the front side of the LED. In the present invention, the reflective layer, the adhesive layer and the ohmic contact electrodes preferably perform single function, so that the most appropriate materials can be applied. Therefore, the LED of the present invention can exhibit excellent brightness.
    Type: Application
    Filed: September 30, 2002
    Publication date: May 8, 2003
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chih-Ru Chung, Juin-Jer Yang
  • Publication number: 20030085851
    Abstract: The present invention discloses a high-brightness light emitting diode (LED), which primarily includes a LED epitaxial layer with a reflective layer and a Si substrate with an adhesive layer. The LED epitaxial layer is bonded with the Si substrate by attaching the reflective layer and the adhesive layer. An n-type ohmic contact electrode and a p-type ohmic contact electrode are deposed on the front side of the LED. In the present invention, the reflective layer, the adhesive layer and the ohmic contact electrodes preferably perform single function, so that the most appropriate materials can be applied. Therefore, the LED of the present invention can exhibit excellent brightness.
    Type: Application
    Filed: September 30, 2002
    Publication date: May 8, 2003
    Inventors: Ray-Hua Horng, Tung-Hsing Wu, Shao-Hua Huang, Chih-Ru Chung, Juin-Jer Yang