Patent ID: 6545744
Filing Date: 2003-04-08
Classification: G03B,G03F,H05K

Abstract:
Apparatus for controlled two-sided mask pattern imaging of substrate panels, each substrate panel having two surfaces which may be designated obverse and reverse, said apparatus using loading means for positioning a substrate panel, having unloading means, having at least one mask station and having control means to direct imaging of a mask pattern onto a surface of a substrate panel, comprising:a) stage mechanism controllable to provide motions including scanning motions and positioning motions to a movable carriage, said carriage having substrate chuck means at positions including obverse and reverse imaging positions; b) a single-approach projection subsystem controllable to scan a selected mask image to the obverse surface of a substrate panel at said obverse imaging position and to scan a selected mask image to the reverse surface of a substrate panel at said reverse imaging position; and c) movable placement mechanism having controllable capability for taking a substrate panel from said obverse imaging position, inverting said substrate panel and returning said inverted substrate panel to said stage mechanism movable carriage at said reverse imaging position for a subsequent imaging scan of the reverse surface of said substrate.