Patent ID: 9365927
Filing Date: 2016-06-14
CPC Classification: C12M,C23C,H01L

Claim Text:
1. A method of producing an organic EL element while collecting a vapor deposition material that is vapor-deposited on a vapor deposition device including a vapor deposition source, a vapor deposition mask, and a substrate, said vapor deposition device including, between the vapor deposition source and the vapor deposition mask, a plurality vapor deposition preventing members each one of which is (i) removable from the vapor deposition device and (ii) prevents a component in a vapor deposition chamber of the vapor deposition device from being contaminated with vapor deposition particles, said method comprising the steps of: (i) providing, on a surface of each vapor deposition preventing member that is perpendicular to the substrate, a film which can be peeled off; (ii) releasing vapor deposition particles from a vapor deposition source of the vapor deposition device, (iii) peeling off, from at least one vapor deposition preventing member, the film on which the vapor deposition particles having been released from the vapor deposition source are vapor-deposited; and (iv) separating, by use of a separating section, the film from a vapor-deposited film having been vapor-deposited on the film, and then collecting the vapor-deposited film, the film being made of: polylactic acid or polyglycol acid, any of which has greater microbial biodegradability than does the vapor-deposited film; polyethylene or polypropylene, any of which has a lower melting point or sublimation point than does the vapor-deposited film; or a material having greater photodegradability than does the vapor-deposited film.