Patent ID: 6182369
Filing Date: 2001-02-06
Classification: G03F,H01J

Abstract:
A pattern forming apparatus configured to form a pattern on a sample based on original drawing data which indicates a pattern forming position, comprising:a correction circuit configured to produce corrected drawing data for each of a plurality of subregions obtained by dividing an entire region of the sample, the corrected drawing data indicating a corrected pattern-forming position; anda drawing device configured to draw a pattern on the sample based on the corrected drawing data,wherein said correction circuit is configured to store correction data indicating a forming position of reference points of each subregion, to produce correction data indicating a forming position of any points within the subregion using the correction data of the reference points, and to produce the corrected drawing data by adding the correction data to the original drawing data, andwherein said reference points are four comer points of each subregion and said correction circuit is configured to interpolate the correction data of the reference points to obtain the correction data of the points within each subregion.