Pattern forming method, photomask manufacturing method,...

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask

Reexamination Certificate

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C430S030000, C430S296000, C430S313000, C430S323000, C430S330000, C430S331000, C430S942000

Reexamination Certificate

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07608368

ABSTRACT:
A pattern forming method includes developing a resist film on a main surface of a substrate by flowing a developing solution on the film to form a resist pattern, the developing the film including partitioning the surface into M (≧2) regions and determining correction exposure dose for each of the M region, the determining the correction exposure dose including determining a correction exposure dose for an i-th (1≦i≦M) region so that an actual pattern dimension of a pattern on the i-th region matches a design pattern dimension based on a pattern opening ratio of a pattern to be formed on the substrate, the pattern being located on a region which is further upstream region than the i-th region with respect to an upstream direction of a flow of the solution, and forming the pattern by etching the substrate using the resist pattern as a mask.

REFERENCES:
patent: 6550990 (2003-04-01), Sakurai et al.
patent: 6929903 (2005-08-01), Itoh et al.
patent: 2005/0242062 (2005-11-01), Sakurai et al.
patent: 2002-252167 (2002-09-01), None

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