X-ray or gamma ray systems or devices – Specific application – Lithography
Patent
1995-03-30
1995-11-21
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Lithography
378 34, 430 5, H01L 3900
Patent
active
054694892
ABSTRACT:
The present invention provides a simple and easy processing method for producing an X-ray mask structure having an X-ray absorber whose side walls have waviness. More specifically, in accordance with the present invention, the method for producing an X-ray mask structure which comprises an X-ray absorber, an X-ray transmissive membrane for supporting the X-ray absorber, and a supporting frame for supporting the X-ray transmissive membrane, includes a step of forming the X-ray absorber by depositing an X-ray absorber material in the regions between resist patterns, the above resist patterns having waviness on the side walls of the resist patterns.
REFERENCES:
patent: 5012500 (1991-04-01), Watanabe et al.
patent: 5052033 (1991-09-01), Ikeda et al.
patent: 5177773 (1993-01-01), Oizumi et al.
Fukuda Yasuaki
Maehara Hiroshi
Miyake Akira
Canon Kabushiki Kaisha
Porta David P.
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