Patents by Inventor Ching-Chang Wen

Ching-Chang Wen 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: 9085700
    Abstract: A coating composition is provided. The coating composition comprises (a) an aluminum oxide precursor and (b) a solvent, wherein the aluminum oxide precursor (a) comprises aluminum elements and the following groups bound thereon: (a1) a —OR1 group, wherein R1 is H or a substituted or unsubstituted C1 to C13 alkyl; (a2) a bidentate chelating group; and (a3) a tetrahedral coordinating group, wherein, the amount of the aluminum oxide precursor (a) is about 1 wt % to about 50 wt %, based on the total weight of the composition, and the total amount of the groups (a1), (a2) and (a3) is no more than 3 moles per 1 mole of the aluminum elements. The coating composition can be used in a semiconductor process for providing a passivation layer.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: July 21, 2015
    Assignees: ETERNAL CHEMICAL CO., LTD., NEW E MATERIALS CO., LTD.
    Inventors: Fu-Chuan Fang, Jia-Hong Chen, Jui-Yi Hung, Ching-Chang Wen
  • Publication number: 20130255762
    Abstract: The present invention pertains to a passivation layer disposed on a surface of a substrate for use in solar cells, including a first passivation layer formed on the substrate by screen printing. The present invention also pertains to a method for preparing the passivation layer structure. The method according to the present invention can prepare a passivation layer on a surface of a semiconductor substrate by screen printing, and during the screen printing, a patterning step can be performed simultaneously. Therefore, the present invention is able to produce the passivation layer in a more economic and faster manner.
    Type: Application
    Filed: February 12, 2013
    Publication date: October 3, 2013
    Applicants: NEW E MATERIALS CO., LTD., ETERNAL CHEMICAL CO., LTD.
    Inventors: FU-CHUAN FANG, JIA-HONG CHEN, JUI-YI HUNG, CHING-CHANG WEN
  • Publication number: 20130177759
    Abstract: A coating composition is provided. The coating composition comprises (a) an aluminum oxide precursor and (b) a solvent, wherein the aluminum oxide precursor (a) comprises aluminum elements and the following groups bound thereon: (a1) a —OR1 group, wherein R1 is H or a substituted or unsubstituted C1 to C13 alkyl; (a2) a bidentate chelating group; and (a3) a tetrahedral coordinating group, wherein, the amount of the aluminum oxide precursor (a) is about 1 wt % to about 50 wt %, based on the total weight of the composition, and the total amount of the groups (a1), (a2) and (a3) is no more than 3 moles per 1 mole of the aluminum elements. The coating composition can be used in a semiconductor process for providing a passivation layer.
    Type: Application
    Filed: July 6, 2012
    Publication date: July 11, 2013
    Inventors: Fu-Chuan Fang, Jia-Hong Chen, Jui-Yi Hung, Ching-Chang Wen