Patent ID: 7759660

Claim:
An electron beam lithography system, comprising: an electron emitter for emitting an electron beam; at least one lens spaced apart from the electron emitter and located coaxially for the electron beam to pass therethrough; first aperture and a second aperture for defining a generally rectangular shape of the electron beam passed therethrough; at least one deflector for varying a path of the generally rectangular-shaped electron beam toward the second aperture; a projection lens located to receive the electron beam from the second aperture for defining the shape of the electron beam passed therethrough; and a stage configured to support a substrate and located in the path of the generally rectangular-shaped electron beam, wherein the stage is configured to alter a rotational orientation of the substrate relative to the path of the generally rectangular-shaped electron beam by a predetermined angle to form a first feature and a second feature having at least one linear, peripheral edge substantially oriented at the predetermined angle relative to the first feature.