Patent ID: 9206505
Filing Date: 2015-12-08
Classification: C23C,H01L,Y10T

Abstract:
1. A method for continuously subjecting an elongated substrate to vacuum film formation, comprising the steps of: (a) feeding an elongated first substrate wound in a roll form, from a first roll chamber in a first direction from the first roll chamber toward a second roll chamber; (b) degassing the first substrate fed in the first direction; (c) forming a film of a second material on the degassed first substrate, using a target supported by a second cathode electrode of a second film formation chamber; (d) rolling up, in the second roll chamber, the first substrate having the second material film formed thereon, thereby producing the second material film-formed first substrate; (a′) feeding an elongated second substrate wound in a roll form, from the second roll chamber in a second direction from the second roll chamber toward the first roll chamber, wherein the second substrate is different from the first substrate; (b′) degassing the second substrate fed in the second direction; (c′) forming a film of a first material on the degassed second substrate, using a target supported by a first cathode electrode of a first film formation chamber; and (d) rolling up, in the first roll chamber, the second substrate having the first material film formed thereon, thereby producing the first material film-formed second substrate, wherein: in the first direction, the first cathode electrode of the first film formation chamber is removed from the first film formation chamber during operation of the second film formation chamber, and removing the first cathode electrode comprises removing the first cathode electrode through a first opening and closing a temporary cover over the first opening following removal of the first cathode electrode; and in the second direction, the second cathode electrode of the second film formation chamber is removed from the second film formation chamber during operation of the first film formation chamber.