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. 25, 2016
Filed:
Dec. 23, 2013
Tokyo Electron Limited, Tokyo, JP;
TOKYO ELECTRON LIMITED, Tokyo, JP;
Abstract
A plasma processing apparatus capable of optimizing a plasma process is provided. The plasma processing apparatus includes a control unit for controlling a minimum energy and a maximum energy of ions incident onto a substrate independently of each other such that ion energy of the ions are concentrated at a first energy band and a second energy band respectively. In the plasma processing apparatus, the oxide film is etched to form a hole within the oxide film, the first energy band is lower than a first energy value at which the oxide film is etched while the organic film is not etched, and the second energy band is higher than a second energy value at which an etching yield at an inclined surface of the hole is higher than an etching yield of an upper surface of the organic film.