• Patent Title: Method of manufacturing semiconductor device including laser treatment for contact plug
  • Application No.: US17281966
    Application Date: 2019-08-26
  • Publication No.: US12009255B2
    Publication Date: 2024-06-11
  • Inventor: Jeong Do Ryu
  • Applicant: RNR LAB INC.
  • Applicant Address: KR Seoul
  • Assignee: RNR LAB INC.
  • Current Assignee: RNR LAB INC.
  • Current Assignee Address: KR Seoul
  • Agency: McLean IP Global
  • Agent Jason Y. Pahng
  • Priority: KR 20180118311 2018.10.04
  • International Application: PCT/KR2019/010846 2019.08.26
  • International Announcement: WO2020/071638A 2020.04.09
  • Date entered country: 2021-03-31
  • Main IPC: H01L21/768
  • IPC: H01L21/768
Method of manufacturing semiconductor device including laser treatment for contact plug
Abstract:
A method of manufacturing a semiconductor device comprises providing a substrate; forming an insulating layer on the substrate; etching the insulating layer to form an opening that exposes the substrate; forming a contact plug in the opening and on the insulating layer; forming a metal layer on the contact plug; and irradiating the metal layer with a laser.
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