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. 25, 1997
Filed:
Jul. 11, 1996
Mitsuaki Amemiya, Isehara, JP;
Yasuaki Fukuda, Hadano, JP;
Yutaka Watanabe, Isehara, JP;
Akira Miyake, Isehara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An exposure method using X-rays from a synchrotron radiation source includes determining a relationship between an X-ray intensity distribution and an exposure amount distribution in an exposure area; and effecting exposure operation while controlling a dose amount for respective positions in the exposure area using the relationship, wherein the dose amount is controlled by changing a driving profile of a movable shutter for controlling the exposure operation, and wherein the relationship is in the form of a proportional coefficient between an X-ray intensity and the exposure amount as a function of position information in the exposure area.