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:
Oct. 09, 2018
Filed:
Nov. 07, 2013
Tokyo Electron Limited, Tokyo, JP;
TOKYO ELECTRON LIMITED, Tokyo, JP;
Abstract
A film forming apparatus that includes a mounting table for loading a wafer, a encompassing member surrounding the mounting table and dividing an inside of a process container, an exhaust part that vacuum exhausts the process container, a clamp ring loaded upon an upper space of the encompassing member and lifted from the upper space of the encompassing member while contacting an inner circumference part thereof with an outer circumference of the wafer loaded on the mounting table, and a cylindrical wall extended downward from the clamp ring, formed along a circumference of the clamp ring into a cylinder shape, and positioned between an outer circumference surface of the mounting table and an inner circumference surface of the encompassing member.