Patent ID: 6198525
Filing Date: 2001-03-06
Classification: G03B,H05K

Abstract:
Apparatus for contact exposing a first side of a substrate to illumination through a first mask and for contact exposing a second side of said substrate to illumination through a second mask, wherein said apparatus comprises:a first-side exposure station for exposing said first side of said substrate, including:an input tray for introducing said substrate into said first-side exposure station;a first transport carriage moving said substrate through said first-side exposure station in a longitudinal direction;a first illumination source illuminating said first side of said substrate through said first mask in a first imaging position;a first mask support plate holding said first mask in said first imaging position;a first imaging carriage moving said substrate between said first transport carriage and said first imaging position; andan output position to which said substrate is moved by said first transport carriage after exposure of said first side of said substrate to said first illumination source in said first imaging position;a second-side exposure station for exposing said second side of said substrate, including:an input position for introducing said substrate into said second-side exposure station;a second transport carriage moving said substrate through said second-side exposure station in a longitudinal direction;a second illumination source illuminating said second side of said substrate through said second mask in a second imaging position;a second mask support plate holding said second mask in said second imaging position;a second imaging carriage moving said substrate between said second transport carriage and said second imaging position; andan output tray to which said substrate is moved by said second transport carriage after exposure of said second side of said substrate to said second illumination source in said second imaging position; andan intermediate station receiving said substrate from said output position of said first-side exposure and supplying said substrate to said input position of said second-side exposure station, wherein said intermediate station includes a flipping member inverting said substrate.