Pattern forming method

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Electron beam imaging

Reexamination Certificate

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Details

C430S312000, C430S313000, C430S315000, C430S324000, C430S394000, C430S942000, C430S945000, C427S903000, C438S763000

Reexamination Certificate

active

07998658

ABSTRACT:
A first resist film is formed on a substrate, and first pattern exposure is performed such that the first resist film is irradiated with exposure light through a first mask. Then, the first resist film is developed, thereby forming a first resist pattern out of the first resist film. Subsequently, a nano-carbon material is attached to the surface of the first resist pattern, and then a second resist film is formed on the substrate including the first resist pattern. Thereafter, second pattern exposure is performed such that the second resist film is irradiated with exposure light through a second mask. Then, the second resist film is developed, thereby forming a second resist pattern out of the second resist film.

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M. Maenhoudt et al., “Double Patterning scheme for sub-0.25 k1 single damascene structures at NA=0.75, λ=193nm,” Proc. SPIE, vol. 5754, pp. 1508, 2005.

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