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. 09, 2008
Filed:
Sep. 20, 2005
Hideyuki Moribe, Tokyo, JP;
Motonari Tateno, Tokyo, JP;
Hideyuki Moribe, Tokyo, JP;
Motonari Tateno, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optical inspection apparatus for inspecting an inspection target surface by irradiating the inspection target surface with light, includes: a condensing and scanning optical system for condensing light from a light source on the inspection target surface in a minute spot shape and scanning the condensed minute-spot-shaped light onto the inspection target surface; and a phase change information detection apparatus for detecting optical phase change information in an area of the inspection target surface irradiated with the minute-spot-shaped light scanned by the condensing and scanning optical system.