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:
Aug. 20, 2002
Filed:
Aug. 16, 2001
Shouqian Shao, Kanagawa, JP;
Yicheng Li, Kanagawa, JP;
Takashi Shigeoka, Nirasaki, JP;
Takeshi Sakuma, Tsukui-gun, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A quartz window decreases an amount of absorption of heat from a heat source while maintaining a pressure difference between the pressure inside a process chamber and an atmospheric pressure. The process chamber defines a process space for processing an object to be processes. A placement stage is provided in the process chamber so as to place the object to be processed thereon. A gas supply part which supplies to the process chamber a process gas for processing the object to be processed. The quartz window is provided as a part of the process chamber so that the quartz window is opposite to the object to be processed placed on the placement stage. A heating unit has a heat radiation lamp provided on an opposite side of the process chamber with respect to the light-transmitting window. The quartz window constitutes a convex lens part which is formed on a periphery of the quartz window and protrudes into the process space.