Invention Grant
- Patent Title: Plasma processing apparatus and plasma processing method
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Application No.: US14565612Application Date: 2014-12-10
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Publication No.: US10283328B2Publication Date: 2019-05-07
- Inventor: Jun Yamawaku , Chishio Koshimizu , Tatsuo Matsudo
- Applicant: TOKYO ELECTRON LIMITED
- Applicant Address: JP Tokyo
- Assignee: TOKYO ELECTRON LIMITED
- Current Assignee: TOKYO ELECTRON LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: JP2013-257008 20131212
- Main IPC: C23C16/00
- IPC: C23C16/00 ; C23F1/00 ; H01L21/306 ; H01J37/32

Abstract:
Disclosed is a plasma processing apparatus including a chamber configured to perform a processing on a wafer by plasma, a VF power supply configured to change a frequency of a high frequency power to be supplied into the chamber, a susceptor configured to mount the wafer thereon, and a focus ring disposed to surround the wafer. A first route, which passes through the plasma starting from the VF power supply, passes through the susceptor, the wafer and the plasma, and a second route, which passes through the plasma starting from the VF power supply, passes through the susceptor, the focus ring and the plasma. The reflection minimum frequency of the first route is different from the reflection minimum frequency of the second route, and the frequency range changeable by the VF power supply includes the reflection minimum frequencies of the first and second routes.
Public/Granted literature
- US20150170882A1 PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD Public/Granted day:2015-06-18
Information query
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