Patent ID: 6366340
Filing Date: 2002-04-02
Classification: G01Q,G11B,H02N,Y10S

Abstract:
A fabrication apparatus, comprising:a plurality of electrically conductive tips; a plurality of first holders, each having a surface which has a conductive line for providing an exposure current to a respective one of said tips, for holding said tips; a second holder having a surface which has conductive lines connected to said conductive lines on said first holders, for holding said first holders; a third holder for holding said second holder; a coarse moving mechanism of a wafer, for approaching to said plurality of tips, wherein said wafer comprises one of a resist layer on a conductive layer on a substrate and a resist layer on a conductive substrate; a transfer mechanism, which is provided between said second holder and said third holder, for correcting an inclination of a line which connects two tips at respective ends of said plurality of tips toward the surface of said resist layer; an X-Y driving mechanism for relatively driving said substrate and said plurality of tips; control devices for respectively controlling said coarse moving mechanism, said transfer mechanism and said drive mechanism; a device for supplying currents to said plurality of tips; detectors for detecting the currents supplied to said plurality of tips; a control device for allowing target values of the currents supplied to said plurality of tips to coincide with detected values; and a pattern input device for supplying a target value corresponding to an electron-exposure pattern to said control device for controlling said drive mechanism; wherein said first holders are springs and said plurality of tips are arranged in a row at predetermined intervals; said two tips at respective ends of said plurality of tips are used to control distances between said plurality of tips and said conductive layer or conductive substrate, and other tips of said plurality of tips are used for electron exposure on said resist layer; said plurality of first holders are bent or deformed and said plurality of tips are held in contact with said resist layer due to a Coulomb force which acts between said plurality of tips and said conductive layer or conductive substrate by a voltage applied to create a latent image in said resist layer; and said wafer is relatively moved with said plurality of tips by said drive mechanism while holding said plurality of tips in contact with said resist layer.