Patent ID: 7098464
Filing Date: 2006-08-29
Classification: B82Y,H01J

Abstract:
1. Electron beam writing equipment comprising: an electron source; an electron optical system illuminating an electron beam emitted from said electron source onto a sample for scanning to form a desired pattern on said sample; a stage mounting said sample; a mark substrate provided on said stage; means beaming a light beam for position detection which is on the same side as the illumination direction of said electron beam for illuminating said mark substrate; light detection means which is on the same side as said means beaming a light beam for detecting reflected light reflected on said mark substrate; and electron detection means which is on the side opposite said light detection means with respect to said mark substrate for detecting a transmitted electron obtained by illumination of said electron beam onto said mark substrate, wherein relative position information of said light beam and said electron beam is obtained based on the signals of said detected reflected light and transmitted electron.