发明名称 |
Electron cyclotron resonance equipment with variable flare angle of horn antenna |
摘要 |
An electron cyclotron resonance equipment generates plasma by application of a processing gas and microwave energy into a vacuum chamber having a wafer therein in an environment of reduced pressure. The equipment includes a horn antenna assembly mounted onto an uppermost end of the vacuum chamber for radiating the microwave energy supplied from a high-frequency generator into the vacuum chamber. The horn antenna enables extension and retraction in a lengthwise direction to change a flare angle of the horn antenna. The equipment is provided with a fixed antenna and a plurality of mobile antennas to configure a horn antenna assembly, thereby enabling control of the flare angle in the horn antenna as a result of displacement of the mobile antennas. Thus, the uniformity in radiation of the microwave energy within plasma chamber can be controlled with efficiency.
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申请公布号 |
US2005160986(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20040007878 |
申请日期 |
2004.12.09 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
HUR JI-HYUN;SHIN JAI-KWANG;OH JAE-JOON |
分类号 |
H01L21/3065;C23C16/00;H01J37/32;(IPC1-7):C23C16/00 |
主分类号 |
H01L21/3065 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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