Patents by Inventor Jan-Dar Guo

Jan-Dar Guo 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).

  • Publication number: 20030148591
    Abstract: The present invention includes step of selecting a provisional substrate, and forming semiconductor device structure is formed on the provisional substrate. The provisional substrate includes conductor material, semiconductor material or insulator material. Then, next step is to separate the chips on the provisional substrate into a plurality of individual units on the provisional substrate. The separating method includes but is not limited to physical method such as cutting by knife or laser or, chemical method such as lithography. Next step is to select a permanence substrate to attach the device to the permanence substrate by using physical or chemical method. The attaching method includes the usage of glue, metal, fusion, pressure, van der waale force, and so on. Subsequently, the provisional substrate on the other side of the semiconductor device is removed. The method of removing the provisional substrate includes but is not limited to physical polish, chemical etching, or laser removal.
    Type: Application
    Filed: August 23, 2002
    Publication date: August 7, 2003
    Inventors: Jan-Dar Guo, Tsung-Yu Chen, Hui-wen Chuang, Jian-Shihn Tsang, Wen-Chung Tsai, Shih-Hsiung Chan
  • Patent number: 6472687
    Abstract: The present invention pertains to a light emitting diode with high luminance and method therefor, and specially to a light emitting diode having a selectively highly-doped low resistive layer of InGaAlP. The selectively highly-doped low resistive layer may be grown by the current epitaxy technique. Therefore, the light emitting diode of the present application may be mass produced, thus having industrial applicability.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: October 29, 2002
    Inventors: Yu-Shan Wu, Jian-Shihn Tsang, Shih-Hsiung Chan, Jan-Dar Guo
  • Patent number: 6448584
    Abstract: The present invention relates to a light emitting diode with high luminance and method for making the same, and more particularly to a light emitting diode having a transparent window layer which is formed by a semiconductor film of nitrogen-containing compounds. The present invention is mainly directed to growing a window layer of a light emitting diode with a nitrogen-containing compound on the double heterostructure of InGaAlP. Since the energy gap of the nitrogen-containing compound is greater than that of the light emitted from the active layer and is smaller than that of GaP, it is easily to be doped and to form metallic ohmic electrode. Therefore, it is suitable to form a window layer, thereby increasing the light emitting efficiency of a light emitting diode. In addition, the nitrogen-containing compounds can be formed by the current MBE or OMVPE techniques. Therefore, the light emitting diode can be mass-produced and does have industrial applicability.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: September 10, 2002
    Inventors: Shih-Hsiung Chan, Jian-Shihn Tsang, Jan-Dar Guo, Simon M. Sze
  • Patent number: 6174367
    Abstract: An epitaxial system is provided for performing an epitaxial growth of IIIA-VA compound on the wafer substrate. The epitaxial system includes a first reaction region for providing a plasma of a first reactant, a second reaction region for epitaxially reacting the plasma of the first reactant with a second reactant on a wafer, and a guiding medium disposed between the first reaction region and the second reaction region for passing therethrough the second reactant and the first reactant plasma to the second reaction region.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: January 16, 2001
    Assignee: National Science Council
    Inventors: Chun-Yen Chang, Shih-Hciung Chan, Jian-Shihn Tsang, Jan-Dar Guo, Wei-Chi Lai
  • Patent number: 6110809
    Abstract: A new method for manufacturing a Group III metal nitride epitaxial wafer comprises providing a first nitrogen-contained gas source, providing a second Group III metal trichloride--containing gas source, and causing said first gas to react with second gas in a heating region, thereby forming a Group III metal nitride epitaxial layer on a substrate. The formed epitaxial wafer can serve as a substrate of a laser diode.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: August 29, 2000
    Inventors: Simon M. Sze, Shih-Hsiung Chan, Jian-Shihn Tsang, Jan-Dar Guo, Wei-Chi Lai