Film formation apparatus, film formation method, and manufacturing method of solar battery

    公开(公告)号:US10508332B2

    公开(公告)日:2019-12-17

    申请号:US15780886

    申请日:2017-08-08

    申请人: ULVAC, Inc.

    摘要: The present invention provides a technique for performing film formation at low cost without causing a short-circuit between sputtered films formed on opposite surfaces of a film-formation target substrate. According to the present invention, in a substrate-holder conveyance mechanism 3, a substrate holder 11 is conveyed by a first conveyance portion so that the substrate holder 11 passes through a first film formation region; film formation is performed by sputtering on a first surface of a film-formation target substrate 50 held by the substrate holder 11; the substrate holder 11 is conveyed from the first conveyance portion to a second conveyance portion in such a manner as to make a turn with the up/down orientation of the substrate holder 11 maintained; the substrate holder 11 is conveyed by the second conveyance portion in a direction opposite to the direction of conveyance by the first conveyance portion so that the substrate holder 11 passes through a second film formation region; and film formation is performed by sputtering on a second surface of the film-formation target substrate 50. The substrate holder 11 has openings 14 and 15 through which first and second surfaces of the film-formation target substrate 50 are exposed, and includes a shield portion 16 for shielding an edge portion of the film-formation target substrate 50 from a film formation material supplied from a second sputtering source.