The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2005
Filed:
May. 10, 2002
Hidetoshi Ohnuma, Kanagawa, JP;
Hidetoshi Ohnuma, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A rule-based OPC evaluating method and a simulation-based OPC model evaluating method for accurately evaluating line width controllability are disclosed. Mask pattern design data about an evaluation-use mask are input to rule-based OPC to obtain correction data about the mask pattern on the evaluation-use mask. An evaluation-use wafer is fabricated based on the correction data thus acquired. Gate patterns on the evaluation-use wafer are measured for size. Based on a simulation-based OPC model having undergone process calibration, simulation data are output corresponding to all gate patterns on the evaluation-use wafer. The measured data about the evaluation-use gate patterns are compared with the simulation data, whereby the rule-based OPC is evaluated.