11.
    发明专利
    未知

    公开(公告)号:FR2481841A1

    公开(公告)日:1981-11-06

    申请号:FR8108293

    申请日:1981-04-27

    Applicant: RCA CORP

    Abstract: A method of making a grid for a cathode-ray tube includes the process of etching an electrically conductive base member of a first material from two sides through related openings in electrically conductive layers of a second material which overlays the two sides of the base material. Etching continues until an aperture of sufficient size is formed that the overlying layers overhang the aperture in the base member.

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