Patent ID: 8359999
Filing Date: 2013-01-29
Classification: C23C,H01L

Abstract:
1. A film-forming device provided with a film-forming mask and film-forming means for depositing a film-forming material through said film-forming mask onto the surface of a substrate on which the film-forming mask has been superimposed, to form a thin film in a desired pattern, said film forming device comprising: an aligning mechanism for moving said film-forming mask and said substrate relative to one another so that the film-forming mask and the substrate are aligned; a first superimposing and securing mechanism for superimposing and securing said substrate and said film-forming mask aligned by the aligning mechanism; and a second superimposing and securing mechanism for superimposing and securing said substrate superimposed and secured to said film-forming mask by the first superimposing and securing mechanism, and a magnetic body for magnetically attracting to an obverse surface side of said substrate said film-forming mask or a weight member in the form of a sheet for causing said substrate to bend and causing said substrate to be affixably superimposed on said film-forming mask so that said film-forming mask is affixably superimposed on said substrate, the weight member being disposed on a reverse surface of the substrate, wherein said film-forming mask includes a mask body having a pattern of openings through which a film-forming material is allowed to pass, and a holding frame for holding the mask body; said holding frame is provided with a pair of holding parts for holding a pair of side parts, respectively, among four sides of said mask body, the pair of holding parts being arranged along the pair of side parts, respectively; said holding frame being configured so that the mask body is held only by the pair of holding parts; the pair of side parts is secured to said pair of holding parts so that said mask body bends under the weight thereof between the pair of side parts held by said pair of holding parts, and the amount by which said mask body bends varies in a direction a in which the pair of side parts oppose one another; and said first superimposing and securing mechanism or said second superimposing and securing mechanism is provided with a support body having a support surface part for supporting the substrate on which said film-forming mask has been superimposed; and configured to pressing parts rise and lower in relation to the support surface part of the support body; said first superimposing and securing mechanism or said second superimposing configured so that said film-forming mask and said substrate, or said substrate and said weight member or said magnetic body, are held by the pressing parts and the support surface part of the support body, whereby said film-forming mask and said substrate are superimposed and secured, or said substrate and said weight member or said magnetic body are superimposed and secured.