Fujitsu Corporation

Kawakami Kenichi

Yoshihisa Ooae

Tatsuro Ohkawa

Kazushi Ishida

Tohru Ikeda

An electron-beam exposure device having at least one deflector for deflecting an electron beam and detecting a position of a position-detection mark with the electron beam includes a plurality of detectors detecting electrons scattered from the position-detection mark, a plurality of amplifiers, each of the amplifiers amplifying an output of a corresponding one of the detectors, and a setting unit for setting amplification factors of the amplifiers such that a magnitude of an output from each of the amplifiers is constant irrespective of a deflected position of the electron beam at a time of detection of the position of the position-detection mark.

Growing community of inventors

Kawasaki, Japan

Kawakami Kenichi