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:
Sep. 03, 2002
Filed:
Jul. 14, 2000
Masahiko Minemura, Kawasaki, JP;
Tomoyuki Okada, Kawasaki, JP;
Ryo Tsujimura, Kawasaki, JP;
Kenji Kikuchi, Kawasaki, JP;
Yoshimasa Iiduka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A full area of a semiconductor integrated circuit is divided into unit areas, a mask data file for use in a beam exposure system or an inspection apparatus is produced based on CAD data of the full area, full-area header information in which a starting address of a mask data of each unit area relates to positional information on said unit area, partial-area header information corresponding to each of partial areas obtained by division of the full area is produced based on the full-area header information and mask data of the partial areas are extracted from a mask data of the full area based on the partial area header information to produce the mask data files corresponding to the partial area header information.