Paper
28 July 1981 Simultaneous Transfer Of A Fine Pattern On Two Complementary Or Identical Replicas By X-Ray Lithography
E. Rammos, V. Chalmeton, Y. Le Jean
Author Affiliations +
Abstract
X-ray masks being fragile and expensive, we elaborate a duplication method giving replicas exactly iden-tical or complementary. Using the X-ray transparency of X-ray mask substrates, we make in a simultaneous exposure two replicas of a master-mask, their polarity being determined by that of the two used resists. A careful calculation ensure a correct exposure of the two resist layers by synchrotron radiation. Examples are given for 2 positive or 1 positive 1 negative resists. The polarity inversion of PMMA is also used.
© (1981) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Rammos, V. Chalmeton, and Y. Le Jean "Simultaneous Transfer Of A Fine Pattern On Two Complementary Or Identical Replicas By X-Ray Lithography", Proc. SPIE 0275, Semiconductor Microlithography VI, (28 July 1981); https://doi.org/10.1117/12.931876
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KEYWORDS
Polymethylmethacrylate

Photomasks

X-rays

Synchrotron radiation

Diffraction

Gold

X-ray lithography

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