MASK DATA CORRECTION APPARATUS, FOURIER TRANSFORMATION APPARATUS, UP SAMPLING APPARATUS, DOWN SAMPLING APPARATUS, METHOD OF MANUFACTURING TRANSFER MASK, AND METHOD OF MANUFACTURING DEVICE HAVING PATTERN STRUCTURE

Patent №

US 6,831,997

Granted

2004-12-14

Filed 2001

Owner

MITSUBISHI DENKI KABUSHIKI KAISHA

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

09827903

A mask data correction apparatus that can increase efficiency of processing while maintaining high accuracy by effectively using the hierarchical structure of a layout data: A Fourier transformation part performs Fourier transformation of base elements defined by the layout data to obtain Fourier images of the base elements. A synthesizing part superimposes, based on the hierarchical structure, the Fourier images of the base elements in Fourier space, to obtain a Fourier image of the entire graphic. A spatial filter part subjects the Fourier image of the entire graphic to spatial filter processing that corresponds to distortion expected in a manufacturing process. An inverse Fourier transformation part performs inverse Fourier transformation of the Fourier image after spatial filter processing, to obtain the inverse Fourier image reflecting the distortion. The graphic defined by the layout data is compared with the graphic of which inverse Fourier image has been transformed, and is corrected in such a direction as to suppress distortion, and then is outputted as a mask data.

VisionG03F 7/70433G03F 1/68H01J 37/3023H01J 2237/31794

AI classification

Vision0.99
Machine learning0.07
Natural language0.00
Evolutionary computation0.00
Speech0.00
AI hardware0.00
Knowledge representation0.00
Planning0.00

Ownership

MITSUBISHI DENKI KABUSHIKI KAISHA

assignment · 116870427

Assignors

KAMON, KAZUYA

On an employer assignment, the assignors are typically the inventors.

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