JP2008113015A - 研磨液及び研磨方法 - Google Patents
研磨液及び研磨方法 Download PDFInfo
- Publication number
- JP2008113015A JP2008113015A JP2007304888A JP2007304888A JP2008113015A JP 2008113015 A JP2008113015 A JP 2008113015A JP 2007304888 A JP2007304888 A JP 2007304888A JP 2007304888 A JP2007304888 A JP 2007304888A JP 2008113015 A JP2008113015 A JP 2008113015A
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- JP
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- Prior art keywords
- polishing
- polishing liquid
- acid
- insulating film
- organic
- Prior art date
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- Granted
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Abstract
【解決手段】界面活性剤または有機溶剤、酸化金属溶解剤及び水を含有し、少なくとも導電性物質及び絶縁膜を表面に有する被研磨面の研磨に使用され、前記酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種である研磨液。
【選択図】なし
Description
少なくとも導電性物質及び
絶縁膜を表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。
少なくとも導電性物質及び、
シリコン系被膜または有機ポリマ膜を、
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。
少なくとも導電性物質及び絶縁膜を
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。
少なくとも導電性物質及び、
シリコン系被膜または有機ポリマ膜を、
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。
表1〜表5に示す材料をそれぞれの配合で混合して実施例1〜27および比較例1〜4に使用する研磨液を調製した。なお、表3、4中のグリコール類としてアセチレンジオールを、アルキルベンゼンスルホン酸塩としてドデシルベンゼンスルホン酸ナトリウムを使用した。
以下の基板を用意した。
パターン基板(b):層間絶縁膜として二酸化ケイ素を使用した以外はパターン基板(a)と同様にして作製した。
上記で調製した各研磨液を用いて、上記で用意した各基板を、下記の研磨条件で化学機械研磨した。また、銅のエッチング速度を下記の条件で各研磨液に浸漬してもとめた。化学機械研磨による研磨速度、研磨速度の面内均一性、銅エッチング速度、ディッシング量、エロージョン量、及び配線抵抗値、研磨カスの量、研磨キズの評価結果を表6〜表10に示した。
研磨パッド:発泡ポリウレタン樹脂(IC1000(ロデール社製))
研磨圧力:20.6kPa(210g/cm2)
基板と研磨定盤との相対速度:36m/min
(各基板の研磨工程)
ブランケット基板(a)、(b)、(c)、(d)を、上記で調製した各研磨液を150cc/分供給しながら、60秒間で化学機械研磨し、研磨終了後、蒸留水で洗浄処理した。
(1) 研磨速度:上記条件で研磨および洗浄した(a)〜(d)のブランケット基板のうち、オルガノシリケートグラス(a)及び二酸化ケイ素(b)の研磨速度を、研磨前後での膜厚差を大日本スクリーン製造株式会社製膜厚測定装置(製品名ラムダエース VL−M8000LS)を用いて測定し求めた。また、タンタル膜(c)及び銅(d)の研磨速度を研磨前後での膜厚差を電気抵抗値から換算して求めた。
Claims (21)
- 界面活性剤、酸化金属溶解剤及び水を含有し、該酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種であり、
少なくとも導電性物質及び
絶縁膜を表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。 - 界面活性剤、酸化金属溶解剤及び水を含有し、該酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種であり、
少なくとも導電性物質及び、
シリコン系被膜または有機ポリマ膜を、
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。 - パーフルオロアルカンスルホン酸、酸化金属溶解剤及び水を含有し、該酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種であることを特徴とする研磨液。
- 有機溶媒、酸化金属溶解剤及び水を含有し、該酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種であり、
少なくとも導電性物質及び絶縁膜を
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。 - 有機溶媒、酸化金属溶解剤及び水を含有し、該酸化金属溶解剤は、有機酸、有機酸エステル、有機酸のアンモニウム塩及び硫酸から選ばれる少なくとも1種であり、
少なくとも導電性物質及び、
シリコン系被膜または有機ポリマ膜を、
表面に有する被研磨面の研磨に使用されることを特徴とする研磨液。 - 砥粒を含む請求の範囲第1項〜第5項のいずれか記載の研磨液。
- 砥粒が、シリカ、アルミナ、セリア、チタニア、ジルコニア、ゲルマニアから選ばれる少なくとも1種である請求の範囲第6項記載の研磨液。
- 砥粒の表面がアルキル基で変性されている請求の範囲第6項記載の研磨液。
- 有機溶媒を0.1〜95重量%含有する請求の範囲第4項または第5項記載の研磨液。
- 有機溶媒がグリコール類及びその誘導体、アルコール類、炭酸エステル類から選ばれる少なくとも1種である請求の範囲第4項または第5項記載の研磨液。
- 界面活性剤が非イオン性界面活性剤、陰イオン性界面活性剤から選ばれる少なくとも1種である請求の範囲第1項または第2項記載の研磨液。
- 界面活性剤が、パーフルオロアルカンスルホン酸とその誘導体から選ばれる少なくとも1種である請求の範囲第1項または第2項記載の研磨液。
- 界面活性剤を0.00001〜20重量%含有する請求の範囲第1項または第2項記載の研磨液。
- 金属の酸化剤を含む請求の範囲第1項〜第5項のいずれか記載の研磨液。
- 金属の酸化剤が、過酸化水素、硝酸、過ヨウ素酸カリウム、次亜塩素酸及びオゾン水から選ばれる少なくとも1種である請求の範囲第14項記載の研磨液。
- 重量平均分子量が500以上の水溶性ポリマを含有する請求の範囲第1項〜第5項のいずれか記載の研磨液。
- 前記水溶性ポリマが、多糖類、ポリカルボン酸、ポリカルボン酸エステル及びその塩、及びビニル系ポリマから選ばれた少なくとも1種である請求の範囲第16項記載の研磨液。
- 表面が凹部および凸部からなる層間絶縁膜と、前記層間絶縁膜を表面に沿って被覆するバリア導体層と、前記凹部を充填してバリア導体層を被覆する導電性物質層とを有する基体の、導電性物質層を研磨して前記凸部のバリア導体層を露出させる第1の研磨工程と、少なくともバリア導体層、凹部の導電性物質層および層間絶縁膜の一部を請求の範囲第1項〜第17項のいずれか記載の研磨液を供給しながら化学機械研磨して凸部の層間絶縁膜を露出させる第2の研磨工程とを含むことを特徴とする研磨方法。
- 層間絶縁膜がシリコン系被膜または有機ポリマ膜である請求の範囲第18項記載の研磨方法。
- 導電性物質が銅を主成分とする請求の範囲第18項記載の研磨方法。
- バリア導体層が前記層間絶縁膜へ前記導電性物質が拡散するのを防ぐバリア層であって、タンタル、窒化タンタル、タンタル合金、その他のタンタル化合物、チタン、窒化チタン、チタン合金、その他のチタン化合物、タングステン、窒化タングステン、タングステン合金、その他のタングステン化合物から選ばれる少なくとも1種を含む請求の範囲第18項記載の研磨方法。
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| KR20110088496A (ko) * | 2008-09-19 | 2011-08-03 | 미츠비시 가스 가가쿠 가부시키가이샤 | 구리 배선 표면 보호액 및 반도체 회로의 제조 방법 |
| JP2012186198A (ja) * | 2011-03-03 | 2012-09-27 | Hitachi Chem Co Ltd | Cmp研磨液用スラリ、cmp研磨液及び研磨方法 |
| JP2015071192A (ja) * | 2013-10-01 | 2015-04-16 | 株式会社フジミインコーポレーテッド | 基板の製造方法 |
| JP2015523716A (ja) * | 2012-05-23 | 2015-08-13 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 半導体装置の製造方法、化学機械研磨組成物の使用方法 |
| JP2017165830A (ja) * | 2016-03-15 | 2017-09-21 | 石原ケミカル株式会社 | 洗浄液および洗浄方法 |
| CN118064061A (zh) * | 2024-04-18 | 2024-05-24 | 浙江大学 | 一种双面同步抛光用的碳化硅晶圆抛光液、制备方法与应用 |
| WO2025134877A1 (en) * | 2023-12-22 | 2025-06-26 | Fujifilm Corporation | Kit and method for manufacturing semiconductor device |
| WO2025134878A1 (en) * | 2023-12-22 | 2025-06-26 | Fujifilm Corporation | Kit and method for producing a semiconductor device |
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| KR20110088496A (ko) * | 2008-09-19 | 2011-08-03 | 미츠비시 가스 가가쿠 가부시키가이샤 | 구리 배선 표면 보호액 및 반도체 회로의 제조 방법 |
| KR101588485B1 (ko) | 2008-09-19 | 2016-01-25 | 미츠비시 가스 가가쿠 가부시키가이샤 | 구리 배선 표면 보호액 및 반도체 회로의 제조 방법 |
| JP2012186198A (ja) * | 2011-03-03 | 2012-09-27 | Hitachi Chem Co Ltd | Cmp研磨液用スラリ、cmp研磨液及び研磨方法 |
| JP2015523716A (ja) * | 2012-05-23 | 2015-08-13 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 半導体装置の製造方法、化学機械研磨組成物の使用方法 |
| JP2015071192A (ja) * | 2013-10-01 | 2015-04-16 | 株式会社フジミインコーポレーテッド | 基板の製造方法 |
| JP2017165830A (ja) * | 2016-03-15 | 2017-09-21 | 石原ケミカル株式会社 | 洗浄液および洗浄方法 |
| WO2025134877A1 (en) * | 2023-12-22 | 2025-06-26 | Fujifilm Corporation | Kit and method for manufacturing semiconductor device |
| WO2025134878A1 (en) * | 2023-12-22 | 2025-06-26 | Fujifilm Corporation | Kit and method for producing a semiconductor device |
| CN118064061A (zh) * | 2024-04-18 | 2024-05-24 | 浙江大学 | 一种双面同步抛光用的碳化硅晶圆抛光液、制备方法与应用 |
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