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:
Feb. 18, 2014
Filed:
Jun. 22, 2011
Yoshiro Gunji, Mito, JP;
Shuji Kikuchi, Yokohama, JP;
Yoshiro Gunji, Mito, JP;
Shuji Kikuchi, Yokohama, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
An inspection device carries out beam scanning on a stable scanning cycle by enabling flexible change of various scanning sequences according to inspection conditions thereof, and at the same time, eliminates as much unevenness as possible in scanning cycle which hinders stabilization of charging. A beam scanning scheduler schedules beam scanning based on an inputted scanning condition, and a programmable sequencer carries out beam scanning control according to a beam scanning schedule generated by the beam scanning scheduler. The scanning scheduler calculates scanning line reference coordinates on a scanning-line-by-scanning-line basis, based on the scanning condition, and issues a scanning cycle trigger. The programmable sequencer controls supply timing of the scanning line reference coordinates and a scanning position on an in-line pixel-by-pixel basis, based on line scanning procedure information and the scanning cycle trigger provided from the beam scanning scheduler.