Scan type projection exposure apparatus and microdevice manufact

Photocopying – Projection printing and copying cameras – Illumination systems or details

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355 67, 359227, H01L 2130, G03B 2772

Patent

active

057060770

ABSTRACT:
A scanning projection exposure apparatus includes an imaging system for imaging a pattern of an original, placed on an object plane, upon a substrate, and a scanning device for relatively scanning the original and the substrate relative to the imaging system, wherein the imaging system provides different imaging positions with respect to a direction of an optical axis, to plural zones on the object plane, which zones are juxtaposedly defined along a direction of scan.

REFERENCES:
patent: 4688932 (1987-08-01), Suzuki
patent: 5184176 (1993-02-01), Unno et al.
patent: 5194893 (1993-03-01), Nishi
patent: 5459000 (1995-10-01), Unno
Patent Abstracts of Japan, Kokai No. JP 2-220425, vol. 14, No. 524, Nov. 16, 1990.

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