Plasma processing apparatus and plasma processing method
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- SHIBAURA MECHATRONICS CORP
- Publication Date
- 2012-08-02
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
TECHNICAL FIELD
[0001] The invention relates to a plasma processing apparatus and a processing method.BACKGROUND ART
[0002] Plasma-utilizing dry process has actively been used in wide technical fields including the manufacture of semiconductor devices, surface hardening of metal parts, surface activation of plastic parts, and chemical-free sterilization. The manufacture of semiconductor devices and liquid crystal displays, for example, adopts varieties of plasma processing such as ashing treatment, etching processing, thin-film deposition (film-forming) processing, and surface modification treatment. The plasma-utilizing dry process is advantageous in terms of low cost, high processing speed, and decreasing environmental pollution because of not using chemicals.
[0003] According to that type of plasma processing, the generated plasma excites and activates the process gas to produce plasma products such as neutral active species and ions. Neutral active species and ions thus generated perf...