Hitachi, Ltd.

Hitachi Instrument Engineering Co., Ltd.

Ikuo Takada

Yukinobu Shibata

Akira Hirakawa

Haruo Yoda

Yoshihiko Okamoto

Fumio Murai

Shinji Okazaki

Norio Saitou

Tadao Konishi

Selective pattern exposure with high reliability is made possible by a desired pattern of repeated pattern and a non-repeated pattern. Exposure technology is obtained to enable improvement of preparation efficiency of pattern data and to secure inspection of an aperture pattern. With the invention, an electron beam is used as focused beam, and a pattern exposure apparatus of a batch transfer system for transferring repeated pattern and non-repeated pattern of plural graphics of a semiconductor integrated circuit or the like comprises an EB drawing section for controlling the beam and irradiating beam onto a sample, a control I/O section, a drawing control section and a data storage section. In the EB drawing section, a semiconductor wafer is mounted on a platform, and in the path of the electron beam from the electron beam source to the stage, a first mask, a blanking electrode, an electron lens, a first deflector, a second deflector, a second mask and a third deflector are installed.

Exposure method and pattern data preparation system therefor, pattern

An electron beam lithographic method in which a sample is irradiated with an electron beam, wherein an extreme point of a contour of a pattern is calculated and a lithographic area is divided into a first region that is surrounded by straight lines drawn from the extreme point in parallel with the x-axis and the y-axis of the sample and by said pattern, and second regions in order to be lithographed.

Electron beam lithographic method

Growing community of inventors

Mikanohara-machi, Japan

Ikuo Takada