Patent ID: 8049190
Filing Date: 2011-11-01
Classification: B82Y,G11B,H01J

Abstract:
1. An electron beam writing method for writing a fine pattern on a substrate applied with a resist and placed on a rotation stage by scanning an electron beam on the substrate while rotating the rotation stage in one direction, the fine pattern including elements larger than an irradiation diameter of the electron beam, wherein: the elements are written by microscopically vibrating the electron beam back and forth in a radial direction of the substrate or in a direction orthogonal to the radial direction and deflecting the electron beam in a direction orthogonal to the vibration direction to scan the electron beam so as to completely fill the shapes of the elements; and a proximity-effect correction is performed according to the arrangement density of the elements in which the amount of dose is adjusted by setting the deflection speed faster for the writing of an element in a densely arranged region than for the writing of an identical element in a sparsely arranged region.