JP5728221B2 - 基板処理方法及び記憶媒体 - Google Patents
基板処理方法及び記憶媒体 Download PDFInfo
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- JP5728221B2 JP5728221B2 JP2010287595A JP2010287595A JP5728221B2 JP 5728221 B2 JP5728221 B2 JP 5728221B2 JP 2010287595 A JP2010287595 A JP 2010287595A JP 2010287595 A JP2010287595 A JP 2010287595A JP 5728221 B2 JP5728221 B2 JP 5728221B2
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- H10P50/242—
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- H10P70/234—
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
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- H10P50/267—
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- H10P50/269—
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- H10P70/27—
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Description
請求項8記載の基板処理方法は、請求項6記載の基板処理方法において、前記炭素化合物のガスはメタンガスからなり、該メタンガスの流量を前記水素ガスの流量に対して2.5%〜12.5%に設定することを特徴とする。
請求項9記載の基板処理方法は、請求項8記載の基板処理方法において、前記メタンガスの流量を前記水素ガスの流量に対して5%〜10%に設定することを特徴とする。
請求項10記載の基板処理方法は、請求項6記載の基板処理方法において、前記炭素化合物のガスは一酸化炭素ガスからなり、該一酸化炭素ガスの流量を前記水素ガスの流量に対して25%〜75%に設定することを特徴とする。
請求項11記載の基板処理方法は、請求項10記載の基板処理方法において、前記一酸化炭素ガスの流量を前記水素ガスの流量に対して37.5%〜62.5%に設定することを特徴とする。
上記目的を達成するために、請求項12記載の記憶媒体は、基板を収容する処理室を備える基板処理装置において前記基板に所定の処理を施す基板処理方法をコンピュータに実行させるプログラムを格納するコンピュータで読み取り可能な記憶媒体であって、前記基板処理方法は、前記基板が備える酸素を含有する層をエッチングすることによって酸素ラジカルを生じさせる酸素含有層エッチングステップと、水素ガスに炭素化合物のガスを添加した処理ガスからプラズマを生成し、該プラズマによって前記基板が備える銅部材をエッチングするメインエッチングとを有し、前記酸素ラジカルは前記炭素化合物のガスから生じた炭素ラジカルと合成されて有機酸を生成し、該有機酸は前記銅部材の銅原子と反応して銅原子を含む有機酸の錯体を生成することを特徴とする。
10 基板処理装置
11 チャンバ
12 サセプタ
28 シャワーヘッド
40 Cu層
42 酸化層
46 有機物
47 酸化物
48 アルゴンの陽イオン
49 水素ラジカル
52 酸素ラジカル
53 炭素ラジカル
Claims (12)
- 基板にプラズマエッチング処理を施す基板処理装置において実行される基板処理方法であって、
前記基板が備える酸素を含有する層をエッチングすることによって酸素ラジカルを生じさせる酸素含有層エッチングステップと、
水素ガスに炭素化合物のガスを添加した処理ガスからプラズマを生成し、該プラズマによって前記基板が備える銅部材をエッチングするメインエッチングステップとを有し、
前記酸素ラジカルは前記炭素化合物のガスから生じた炭素ラジカルと合成されて有機酸を生成し、該有機酸は前記銅部材の銅原子と反応して銅原子を含む有機酸の錯体を生成することを特徴とする基板処理方法。 - 前記メインエッチングステップに先立って、前記基板が備える酸素を含有する層をエッチングする酸素含有層エッチングステップを有することを特徴とする請求項1記載の基板処理方法。
- 前記酸素含有層エッチング及び前記メインエッチングステップの間に、前記銅部材の表面に存在する異物を除去する異物除去ステップをさらに有することを特徴とする請求項2記載の基板処理方法。
- 前記異物除去ステップでは、水素ガスに希ガスを添加した処理ガスからプラズマを生成することを特徴とする請求項3記載の基板処理方法。
- 前記希ガスはアルゴンガスであることを特徴とする請求項4記載の基板処理方法。
- 前記炭素化合物はメタン又は一酸化炭素であることを特徴とする請求項1乃至5のいずれか1項に記載の基板処理方法。
- 前記基板処理装置は、互いに平行且つ対向する2つの電極を備える容量結合型の基板処理装置であり、前記2つの電極の間においてプラズマを生成し、該生成されたプラズマを用いて一方の前記電極に載置された前記基板に前記プラズマエッチング処理を施すことを特徴とする請求項1乃至6のいずれか1項に記載の基板処理方法。
- 前記炭素化合物のガスはメタンガスからなり、該メタンガスの流量を前記水素ガスの流量に対して2.5%〜12.5%に設定することを特徴とする請求項6記載の基板処理方法。
- 前記メタンガスの流量を前記水素ガスの流量に対して5%〜10%に設定することを特徴とする請求項8記載の基板処理方法。
- 前記炭素化合物のガスは一酸化炭素ガスからなり、該一酸化炭素ガスの流量を前記水素ガスの流量に対して25%〜75%に設定することを特徴とする請求項6記載の基板処理方法。
- 前記一酸化炭素ガスの流量を前記水素ガスの流量に対して37.5%〜62.5%に設定することを特徴とする請求項10記載の基板処理方法。
- 基板を収容する処理室を備える基板処理装置において前記基板に所定の処理を施す基板処理方法をコンピュータに実行させるプログラムを格納するコンピュータで読み取り可能な記憶媒体であって、前記基板処理方法は、前記基板が備える酸素を含有する層をエッチングすることによって酸素ラジカルを生じさせる酸素含有層エッチングステップと、水素ガスに炭素化合物のガスを添加した処理ガスからプラズマを生成し、該プラズマによって前記基板が備える銅部材をエッチングするメインエッチングとを有し、前記酸素ラジカルは前記炭素化合物のガスから生じた炭素ラジカルと合成されて有機酸を生成し、該有機酸は前記銅部材の銅原子と反応して銅原子を含む有機酸の錯体を生成することを特徴とする記憶媒体。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010287595A JP5728221B2 (ja) | 2010-12-24 | 2010-12-24 | 基板処理方法及び記憶媒体 |
| US13/332,531 US8608974B2 (en) | 2010-12-24 | 2011-12-21 | Substrate processing method |
| KR1020110139178A KR101886742B1 (ko) | 2010-12-24 | 2011-12-21 | 기판 처리 방법 |
| EP11010198.7A EP2469582B1 (en) | 2010-12-24 | 2011-12-22 | Substrate processing method |
| TW100148187A TWI536446B (zh) | 2010-12-24 | 2011-12-23 | Substrate processing methods and memory media |
| CN201110462711.7A CN102593045B (zh) | 2010-12-24 | 2011-12-23 | 基板处理方法 |
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| JP2010287595A JP5728221B2 (ja) | 2010-12-24 | 2010-12-24 | 基板処理方法及び記憶媒体 |
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| JP5728221B2 true JP5728221B2 (ja) | 2015-06-03 |
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| KR (1) | KR101886742B1 (ja) |
| CN (1) | CN102593045B (ja) |
| TW (1) | TWI536446B (ja) |
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| US8608974B2 (en) | 2013-12-17 |
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