JP2014160817A - プラズマ処理装置の硬質脆性構成要素のための延性モード機械加工方法 - Google Patents
プラズマ処理装置の硬質脆性構成要素のための延性モード機械加工方法 Download PDFInfo
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Abstract
【解決手段】ダイヤモンド切削工具で構成要素を一点旋削することにより、非金属硬質脆性材料の一部に高圧相変態を受けさせてチップ形成時に硬質脆性材料の延性相部分を形成することを備え、旋削面が相変化材料から形成され、旋削面は相変化材料の溝付きテクスチャ表面である。
【選択図】図1
Description
Claims (20)
- プラズマ処理装置の非金属硬質脆性材料から成る構成要素を延性モード機械加工する方法であって、
ダイヤモンド切削工具で前記構成要素を一点旋削することにより、前記非金属硬質脆性材料の一部に高圧相変態を受けさせてチップ形成時に前記硬質脆性材料の延性相部分を形成することを備え、
旋削面が相変化材料から形成され、前記旋削面は相変化材料の溝付きテクスチャ表面である、方法。 - 請求項1に記載の方法であって、(a)前記構成要素の前記旋削面の所定の表面粗さ(Ra)は前記旋削された構成要素の前記溝付きテクスチャ表面を形成し、(b)前記旋削面の前記所定の表面粗さは約0.001から0.2μmであり、(c)前記旋削面の前記溝付きテクスチャ表面はらせん状のパターンであり、(d)前記旋削面の前記溝付きテクスチャ表面は光回折パターンを示し、(e)前記旋削面の前記溝付きテクスチャ表面は仕上げ旋削面を形成し、および/または、(f)前記構成要素はSiで形成され、前記旋削面を形成する前記相変化材料は非晶質シリコンを含む、方法。
- 請求項1に記載の方法であって、前記溝付きテクスチャ表面には、表面下損傷がない、方法。
- 請求項1に記載の方法であって、前記高圧変態部分には、レーザ光が照射され、(a)前記レーザ光は、前記延性相材料によって吸収されることで前記延性相材料を加熱して硬度を減少させ、および/または、(b)前記レーザ光は、約400から1500ナノメートルの波長を有する、方法。
- 請求項1に記載の方法であって、(a)前記切削深さは約0.25から50μmであり、前記送り速度は約0.1から50μm/回転であり、前記構成要素は約500から1,500回転/分で回転され、(b)前記切削深さは約0.25から50μmであり、前記送り速度は約0.2から3μm/回転であり、前記構成要素は約500から1,000回転/分で回転され、および/または、(c)前記切削深さは前記構成要素の一点旋削中に増大および/または減少され、および/または、(d)前記送り速度は前記構成要素の一点旋削中に増大および/または減少される、方法。
- 請求項1に記載の方法であって、前記脆性材料は、セラミック材料、シリコン含有材料、および、石英材料からなる群より選択される、方法。
- 請求項1に記載の方法であって、前記構成要素は、エッジリング、シャワーヘッド電極、窓、ガスインジェクタ、プラズマ閉じ込めリング、チャンバライナ、または、静電チャックを含む、方法。
- 請求項1に記載の方法であって、前記構成要素は、プラズマ処理装置の誘電体チャンバ部品である、方法。
- 請求項1に記載の方法であって、(a)前記構成要素の前記旋削面は、起伏面形状を有し、および/または、(b)前記構成要素の前記旋削面は、平面を形成する、方法。
- 請求項9に記載の方法であって、前記起伏面形状は、ベベル、面取り部、曲面の三次元表面である、方法。
- 請求項9に記載の方法であって、(a)前記平面の平坦度の変動は、約1.4μm未満であり、および/または、(b)前記平面の平坦度の変動は、約0.3μm未満である、方法。
- 請求項1に記載の方法であって、(a)前記延性モード機械加工された構成要素の前記旋削面を形成する前記相変化材料は、約0.01から2μmの厚さを有し、および/または、(b)前記延性モード機械加工された構成要素の前記旋削面を形成する前記相変化材料は、約0.01から0.5μmの厚さを有する、方法。
- 請求項1に記載の方法であって、さらに、前記旋削面の光学データを収集し、不規則性を検出できるように前記光学データを処理すること、を備える、方法。
- 請求項13に記載の方法であって、(a)前記光学データは、肉眼視、散乱計、顕微鏡、または、干渉計で収集され、および/または、(b)不規則性の検出は、不均一な表面粗さまたは露出した表面下損傷の検出を含む、方法。
- 請求項1に記載の方法であって、さらに、(a)前記構成要素を延性モード機械加工する前に、旋盤に設置された研削工具で、硬質脆性材料の前記構成要素を所定の形状に研削すなわち荒削りし、および/または、(b)前記構成要素を所定の形状にダイヤモンド旋削できるように、前記研削工具から、前記旋盤に設置されたダイヤモンド切削工具に切り替えることを備える、方法。
- 請求項1に記載の方法であって、前記一点旋削を実行する前記ダイヤモンド切削工具は、(a)単結晶天然ダイヤモンド切削工具、または、(b)合成ダイヤモンド切削工具である、方法。
- プラズマ処理装置の構成要素を交換する方法であって、使用済み構成要素が腐食した時に、前記使用済み構成要素を前記プラズマ処理装置から取り除きお、前記使用済み構成要素を請求項1の方法で製造された前記構成要素に交換すること、を備える、方法。
- 請求項17に記載の方法であって、前記使用済み構成要素は、請求項1の方法で表面を修復された修復済み構成要素に交換される、方法。
- 請求項17に記載の方法であって、前記構成要素の材料は、セラミック材料、シリコン含有材料、および、石英材料からなる群より選択される、方法。
- プラズマ処理装置内で半導体基板をエッチングする方法であって、請求項1の方法で形成された構成要素を前記プラズマ処理装置のプラズマエッチングチャンバ内に設置し、前記プラズマチャンバ内で少なくとも1つの半導体基板をエッチングすること、を備える、方法。
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KR20140104396A (ko) | 2014-08-28 |
JP6348725B2 (ja) | 2018-06-27 |
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