Patent ID: 6761125
Filing Date: 2004-07-13
Classification: H01L

Abstract:
A coating film forming system comprising:a substrate holding portion configured to horizontally hold a substrate; a first driving part configured to move said substrate holding portion in longitudinal directions; a nozzle portion configured to face said substrate held on said substrate holding portion and configured to discharge a coating liquid to said substrate; a second driving part configured to move said nozzle portion in lateral directions; a plate which has a slit being open so as to have a width configured to correspond to a lateral width of a coating region of said substrate and which is provided between said nozzle portion and said substrate; and a suction mechanism configured to suck a suspended matter over a range corresponding to said width of said slit via a suction port which is provided in the vicinity of said slit, wherein said nozzle portion is configured to move in said lateral directions to linearly apply said coating liquid in linear coating regions on said substrate via said slit, and thereafter, the system is configured to intermittently move said substrate to closely arrange said linear coating regions in said longitudinal directions, to form a coating film, and wherein front and rear edge portions of the slit are formed so as to have a longer length in vertical directions by bending said plate in an L shave downwards.