Patents Assigned to SETTSU OIL MILL., INC.
  • Etching agent for semiconductor substrate
    Patent number: 10106736
    Abstract: The present invention relates to an alkaline etching agent for treating a surface of a semiconductor substrate for solar cells, containing at least one hydroxystyrene polymer represented by the general formula (1) and an alkaline agent. According to the present invention, some effects are exhibited that the texture formation is made possible to a semiconductor substrate for solar cells at relatively lower temperatures with a shorter amount of time, thereby having excellent productivity.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: October 23, 2018
    Assignee: SETTSU OIL MILL., INC.
    Inventors: Seimei Akagi, Yoshiteru Kamada, Noboru Ohyagi, Toshinori Saida, Kazuhiro Moriwaki, Yuzo Yamamoto
  • ETCHING AGENT FOR SEMICONDUCTOR SUBSTRATE
    Publication number: 20170306229
    Abstract: The present invention relates to an alkaline etching agent for treating a surface of a semiconductor substrate for solar cells, containing at least one hydroxystyrene polymer represented by the general formula (1) and an alkaline agent. According to the present invention, some effects are exhibited that the texture formation is made possible to a semiconductor substrate for solar cells at relatively lower temperatures with a shorter amount of time, thereby having excellent productivity.
    Type: Application
    Filed: October 20, 2015
    Publication date: October 26, 2017
    Applicant: SETTSU OIL MILL., INC.
    Inventors: Seimei AKAGI, Yoshiteru KAMADA, Noboru OHYAGI, Toshinori SAIDA, Kazuhiro MORIWAKI, Yuzo YAMAMOTO