Patents by Inventor Hsiang-Ping CHENG

Hsiang-Ping CHENG 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: 8552441
    Abstract: A method for manufacturing the AlGaInP LED having a vertical structure is provided, including: growing, epitaxially, a buffer layer, an n-type contact layer, an n-type textured layer, a confined layer, an active layer, a p-type confined layer and a p-type window layer in that order on a temporary substrate, to form a texturable epitaxial layer; forming a transparent conducting film with periodicity on the p-type window layer of the epitaxial layer, forming a regulated through-hole on the transparent conducting film, and filling the through-hole with a conducting material; forming a total-reflection metal layer on the transparent conducting film; bonding a permanent substrate with the texturable epitaxial layer via a bonding layer, and bring the total-reflection metal layer into contact with the bonding layer; removing the temporary substrate and the buffer layer; forming an n-type extension electrode on the exposed n-type contact layer; removing the n-type contact layer, and forming a pad on the n-type textur
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 8, 2013
    Assignee: Xiamen Sanan Optoelectronics Technology Co., Ltd.
    Inventors: Hou-Jun Wu, Yu-Tsai Teng, Po-Hung Tsou, Hsiang-Ping Cheng, Jyh-Chiarng Wu
  • Publication number: 20120043566
    Abstract: A method for manufacturing the AlGaInP LED having a vertical structure is provided, including: growing, epitaxially, a buffer layer, an n-type contact layer, an n-type textured layer, a confined layer, an active layer, a p-type confined layer and a p-type window layer in that order on a temporary substrate, to form a texturable epitaxial layer; forming a transparent conducting film with periodicity on the p-type window layer of the epitaxial layer, forming a regulated through-hole on the transparent conducting film, and filling the through-hole with a conducting material; forming a total-reflection metal layer on the transparent conducting film; bonding a permanent substrate with the texturable epitaxial layer via a bonding layer, and bring the total-reflection metal layer into contact with the bonding layer; removing the temporary substrate and the buffer layer; forming an n-type extension electrode on the exposed n-type contact layer; removing the n-type contact layer, and forming a pad on the n-type textur
    Type: Application
    Filed: August 19, 2011
    Publication date: February 23, 2012
    Inventors: Hou-Jun Wu, Yu-Tsai Teng, Po-Hung Tsou, Hsiang-Ping Cheng, Jyh-Chiarng Wu
  • Publication number: 20090146163
    Abstract: The present invention discloses a high brightness LED structure, wherein a highly-doped n-type AlInP island structure is formed on a portion of the surface of an AlGaInP semiconductor stack structure and functions as a current barrier structure. The island structure is covered by a p-type window layer and positioned below a p-type ohmic electrode. The island structure can make more input current flow to the AlGaInP semiconductor stack structure not shielded by the light-emitting side electrode and thus can optimize the current distribution and promote the light-emitting efficiency.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventors: Hsiang-Ping CHENG, Chang-Yi Yang, Hou-Ren Wu