Patent ID: 7642041
Filing Date: 2010-01-05
Classification: G03F,G11B

Abstract:
1. A method of manufacturing a master, comprising: applying a resist to a substrate; patterning the resist by interferometric lithography to form a patterned resist, wherein the patterning is performed by a rotary apertured interferometric lithography (RAIL) system comprising an interferometric tool, a rotating stage, at least two interfering laser beams and a mask having an aperture that creates a servo pattern in a master for magnetic-contact printing, wherein the master has a feature having a size of less than 0.35 micron and a standard deviation of a period of the servo pattern is less than 1 nm, wherein the aperture is an arc-shaped slit, and wherein the chord of the arc-shaped slit extends substantially radially from near the center of the rotating stage to near the perimeter of the rotating stage; and depositing a metal on the patterned resist, wherein the master has a feature having a standard deviation of a period of the feature of less than 1 nm and the master is a master for magnetic-contact printing.