Patent ID: 7225732
Filing Date: 2007-06-05
Classification: B41F,H05K

Abstract:
1. A screen printer in which a mask plate having a pattern hole is abutted on a substrate positioned in a substrate positioning portion, and paste is printed on the substrate through said pattern hole by supplying the paste onto the mask plate and sliding a squeegee, the screen printer comprising: a substrate holding portion for holding the substrate in said substrate positioning portion; a clamp means for nipping and holding the end face of a side end portion of the substrate held in said substrate holding portion from both sides by a clamp face of a clamp member; a warp correcting portion arranged in a concave portion arranged on an upper face of said clamp member and correcting warp deformation of the substrate by abutting a warp correcting member on the upper face side of the side end portion of the substrate in a state in which said substrate is nipped by the clamp member; and a position aligning raising-lowering means for aligning the height position of the upper face of the held substrate with the lower face of said warp correcting member by raising and lowering said substrate holding portion.