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:
May. 27, 2008
Filed:
Nov. 18, 2003
Makio Higashi, Kumamoto, JP;
Akira Miyata, Kumamoto, JP;
Makio Higashi, Kumamoto, JP;
Akira Miyata, Kumamoto, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
In a coating and developing apparatus that forms a resist film on substrates such as semiconductor wafers, and develops substrates exposed by an aligner, times after the aligner unloads substrates until heating units (PEB) start heating the substrates are kept uniform. Exposed wafers are prevented from being left stagnant in an interface portion disposed between a region in which resist is coated and developed and the aligner. In the region in which resist is coated and developed, a first transferring means that successively executes transportation cycles to transfer substrates from upstream side modules to downstream side modules in a flow of processes of substrates. N heating units (PEB) are disposed (n is for example 5). Exposed wafers loaded into the heating units (PEB) are unloaded by the first transferring means after (n−1) cycles including the transferring cycle of the first transferring means have elapsed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile