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. 21, 2017
Filed:
Mar. 16, 2015
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Abstract
A stocker includes a storage shelf, an output-relay shelf, a first crane, an output shelf, a second crane, and a controller. The storage shelf has a plurality of storage spaces. The output-relay shelf has a plurality of first output-relay spaces. The output shelf has an output space. The controller is configured to drive the first crane to preferentially transfer a first wafer carrier stored in one of the storage spaces to an empty one of the first output-relay spaces according to a delivery command defining a high priority of the first wafer carrier, and configured to drive the second crane to preferentially transfer the first wafer carrier from the first output-relay space storing the first wafer carrier to the output space according to the delivery command if the output space is empty.