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:
Jun. 17, 2003
Filed:
Nov. 22, 1999
Applicant:
Inventor:
Shin Takano, Utsunomiya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/900 ;
U.S. Cl.
CPC ...
G06F 1/900 ;
Abstract
Wafers are sequentially loaded, exposed, and unloaded. When a wafer exposed or being exposed is to be recovered in a carrier in a predetermined case, a storage section stores information for specifying the slot of the carrier in which the recovered wafer is stored and information associated with the wafer in correspondence with each other. When the wafer recovered is the first wafer recovered in the lot to which the wafer belongs, and a wafer is already present in the carrier, a new carrier is set in place of the wafer in accordance with an output, and the wafer is recovered in the new carrier.