JP2022547312A - エッチング組成物 - Google Patents
エッチング組成物 Download PDFInfo
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- JP2022547312A JP2022547312A JP2022515901A JP2022515901A JP2022547312A JP 2022547312 A JP2022547312 A JP 2022547312A JP 2022515901 A JP2022515901 A JP 2022515901A JP 2022515901 A JP2022515901 A JP 2022515901A JP 2022547312 A JP2022547312 A JP 2022547312A
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- Japan
- Prior art keywords
- composition
- acid
- benzotriazole
- weight
- water
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 114
- 238000005530 etching Methods 0.000 title claims description 79
- -1 amine compound Chemical class 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003960 organic solvent Substances 0.000 claims abstract description 13
- 239000002738 chelating agent Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 48
- 239000004065 semiconductor Substances 0.000 claims description 48
- 239000000758 substrate Substances 0.000 claims description 45
- 239000002253 acid Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 150000007513 acids Chemical class 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 15
- 238000005260 corrosion Methods 0.000 claims description 15
- 239000007800 oxidant agent Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 150000001298 alcohols Chemical class 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 10
- 239000012964 benzotriazole Substances 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 150000001565 benzotriazoles Chemical class 0.000 claims description 8
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 7
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 150000004985 diamines Chemical class 0.000 claims description 5
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 claims description 4
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 4
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 claims description 4
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 claims description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 3
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- 229960003330 pentetic acid Drugs 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 claims description 2
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 claims description 2
- XNCSCQSQSGDGES-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]propyl-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)C(C)CN(CC(O)=O)CC(O)=O XNCSCQSQSGDGES-UHFFFAOYSA-N 0.000 claims description 2
- SJBOEHIKNDEHHO-UHFFFAOYSA-N 2-[2-aminoethyl(carboxymethyl)amino]acetic acid Chemical compound NCCN(CC(O)=O)CC(O)=O SJBOEHIKNDEHHO-UHFFFAOYSA-N 0.000 claims description 2
- ZIMXAFGAUMQPMG-UHFFFAOYSA-N 2-[4-[bis(carboxymethyl)amino]butyl-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CCCCN(CC(O)=O)CC(O)=O ZIMXAFGAUMQPMG-UHFFFAOYSA-N 0.000 claims description 2
- YTZPUTADNGREHA-UHFFFAOYSA-N 2h-benzo[e]benzotriazole Chemical compound C1=CC2=CC=CC=C2C2=NNN=C21 YTZPUTADNGREHA-UHFFFAOYSA-N 0.000 claims description 2
- XSFHICWNEBCMNN-UHFFFAOYSA-N 2h-benzotriazol-5-amine Chemical compound NC1=CC=C2NN=NC2=C1 XSFHICWNEBCMNN-UHFFFAOYSA-N 0.000 claims description 2
- GUOVBFFLXKJFEE-UHFFFAOYSA-N 2h-benzotriazole-5-carboxylic acid Chemical compound C1=C(C(=O)O)C=CC2=NNN=C21 GUOVBFFLXKJFEE-UHFFFAOYSA-N 0.000 claims description 2
- QGCDUBGOXJTXIU-UHFFFAOYSA-N 3-(2h-benzotriazol-4-yl)propane-1,1-diol Chemical compound OC(O)CCC1=CC=CC2=NNN=C12 QGCDUBGOXJTXIU-UHFFFAOYSA-N 0.000 claims description 2
- KWYJDIUEHHCHCZ-UHFFFAOYSA-N 3-[2-[bis(2-carboxyethyl)amino]ethyl-(2-carboxyethyl)amino]propanoic acid Chemical compound OC(=O)CCN(CCC(O)=O)CCN(CCC(O)=O)CCC(O)=O KWYJDIUEHHCHCZ-UHFFFAOYSA-N 0.000 claims description 2
- PHFUGYFADPADDV-UHFFFAOYSA-N 4-(2-methylpropyl)-2h-benzotriazole Chemical compound CC(C)CC1=CC=CC2=NNN=C12 PHFUGYFADPADDV-UHFFFAOYSA-N 0.000 claims description 2
- DNJANJSHTMOQOV-UHFFFAOYSA-N 4-bromo-2h-benzotriazole Chemical compound BrC1=CC=CC2=C1N=NN2 DNJANJSHTMOQOV-UHFFFAOYSA-N 0.000 claims description 2
- IPIVUPVIFPKFTG-UHFFFAOYSA-N 4-butyl-2h-benzotriazole Chemical compound CCCCC1=CC=CC2=C1N=NN2 IPIVUPVIFPKFTG-UHFFFAOYSA-N 0.000 claims description 2
- NGKNMHFWZMHABQ-UHFFFAOYSA-N 4-chloro-2h-benzotriazole Chemical compound ClC1=CC=CC2=NNN=C12 NGKNMHFWZMHABQ-UHFFFAOYSA-N 0.000 claims description 2
- QRHDSDJIMDCCKE-UHFFFAOYSA-N 4-ethyl-2h-benzotriazole Chemical compound CCC1=CC=CC2=C1N=NN2 QRHDSDJIMDCCKE-UHFFFAOYSA-N 0.000 claims description 2
- ALDDXGSQUCGTDT-UHFFFAOYSA-N 4-fluoro-2h-benzotriazole Chemical compound FC1=CC=CC2=NNN=C12 ALDDXGSQUCGTDT-UHFFFAOYSA-N 0.000 claims description 2
- OKFSBQOGHYYGRZ-UHFFFAOYSA-N 4-hexyl-2h-benzotriazole Chemical compound CCCCCCC1=CC=CC2=C1N=NN2 OKFSBQOGHYYGRZ-UHFFFAOYSA-N 0.000 claims description 2
- UTMDJGPRCLQPBT-UHFFFAOYSA-N 4-nitro-1h-1,2,3-benzotriazole Chemical compound [O-][N+](=O)C1=CC=CC2=NNN=C12 UTMDJGPRCLQPBT-UHFFFAOYSA-N 0.000 claims description 2
- TVOIATIUZOHKFY-UHFFFAOYSA-N 4-pentyl-2h-benzotriazole Chemical compound CCCCCC1=CC=CC2=NNN=C12 TVOIATIUZOHKFY-UHFFFAOYSA-N 0.000 claims description 2
- KUVZHAJTEJICOW-UHFFFAOYSA-N 4-propan-2-yl-2h-benzotriazole Chemical compound CC(C)C1=CC=CC2=NNN=C12 KUVZHAJTEJICOW-UHFFFAOYSA-N 0.000 claims description 2
- VXDLXVDZTJOKAO-UHFFFAOYSA-N 4-propyl-2h-benzotriazole Chemical compound CCCC1=CC=CC2=C1N=NN2 VXDLXVDZTJOKAO-UHFFFAOYSA-N 0.000 claims description 2
- CSUGYJWSPZKYLY-UHFFFAOYSA-N 5-(2,4,4-trimethylpentan-2-yl)-2h-benzotriazole Chemical compound C1=C(C(C)(C)CC(C)(C)C)C=CC2=NNN=C21 CSUGYJWSPZKYLY-UHFFFAOYSA-N 0.000 claims description 2
- YQTFAYALFNXJFA-UHFFFAOYSA-N 5-(2,4-dimethylpentan-2-yl)-2H-benzotriazole Chemical compound CC(C)CC(C)(C)c1ccc2[nH]nnc2c1 YQTFAYALFNXJFA-UHFFFAOYSA-N 0.000 claims description 2
- DYIFWSZJRUOXBY-UHFFFAOYSA-N 5-(2-methylbutan-2-yl)-2h-benzotriazole Chemical compound C1=C(C(C)(C)CC)C=CC2=NNN=C21 DYIFWSZJRUOXBY-UHFFFAOYSA-N 0.000 claims description 2
- JQSSWPIJSFUBKX-UHFFFAOYSA-N 5-(2-methylpropyl)-2h-benzotriazole Chemical compound C1=C(CC(C)C)C=CC2=NNN=C21 JQSSWPIJSFUBKX-UHFFFAOYSA-N 0.000 claims description 2
- YZTYEGCWRPJWEE-UHFFFAOYSA-N 5-(benzotriazol-2-yl)pentan-1-amine Chemical compound C1=CC=CC2=NN(CCCCCN)N=C21 YZTYEGCWRPJWEE-UHFFFAOYSA-N 0.000 claims description 2
- BQCIJWPKDPZNHD-UHFFFAOYSA-N 5-bromo-2h-benzotriazole Chemical compound C1=C(Br)C=CC2=NNN=C21 BQCIJWPKDPZNHD-UHFFFAOYSA-N 0.000 claims description 2
- ZCFMGIGLXOKMJC-UHFFFAOYSA-N 5-butyl-2h-benzotriazole Chemical compound C1=C(CCCC)C=CC2=NNN=C21 ZCFMGIGLXOKMJC-UHFFFAOYSA-N 0.000 claims description 2
- PZBQVZFITSVHAW-UHFFFAOYSA-N 5-chloro-2h-benzotriazole Chemical compound C1=C(Cl)C=CC2=NNN=C21 PZBQVZFITSVHAW-UHFFFAOYSA-N 0.000 claims description 2
- ZWTWLIOPZJFEOO-UHFFFAOYSA-N 5-ethyl-2h-benzotriazole Chemical compound C1=C(CC)C=CC2=NNN=C21 ZWTWLIOPZJFEOO-UHFFFAOYSA-N 0.000 claims description 2
- SYGGDXKMRDPIKQ-UHFFFAOYSA-N 5-fluoro-2h-benzotriazole Chemical compound C1=C(F)C=CC2=NNN=C21 SYGGDXKMRDPIKQ-UHFFFAOYSA-N 0.000 claims description 2
- GAHAURRLKFPBCQ-UHFFFAOYSA-N 5-hexyl-2h-benzotriazole Chemical compound CCCCCCC1=CC=C2NN=NC2=C1 GAHAURRLKFPBCQ-UHFFFAOYSA-N 0.000 claims description 2
- SUPSFAUIWDRKKZ-UHFFFAOYSA-N 5-methoxy-2h-benzotriazole Chemical compound C1=C(OC)C=CC2=NNN=C21 SUPSFAUIWDRKKZ-UHFFFAOYSA-N 0.000 claims description 2
- AOCDQWRMYHJTMY-UHFFFAOYSA-N 5-nitro-2h-benzotriazole Chemical compound C1=C([N+](=O)[O-])C=CC2=NNN=C21 AOCDQWRMYHJTMY-UHFFFAOYSA-N 0.000 claims description 2
- CEKGSUMCMSBKNQ-UHFFFAOYSA-N 5-octyl-2h-benzotriazole Chemical compound C1=C(CCCCCCCC)C=CC2=NNN=C21 CEKGSUMCMSBKNQ-UHFFFAOYSA-N 0.000 claims description 2
- KAGBXLIGSMIYGF-UHFFFAOYSA-N 5-pentyl-2h-benzotriazole Chemical compound C1=C(CCCCC)C=CC2=NNN=C21 KAGBXLIGSMIYGF-UHFFFAOYSA-N 0.000 claims description 2
- WXSBVEKBZGNSDY-UHFFFAOYSA-N 5-phenyl-2h-benzotriazole Chemical compound C1=CC=CC=C1C1=CC2=NNN=C2C=C1 WXSBVEKBZGNSDY-UHFFFAOYSA-N 0.000 claims description 2
- MBSXHYDCWYCSME-UHFFFAOYSA-N 5-propan-2-yl-2h-benzotriazole Chemical compound C1=C(C(C)C)C=CC2=NNN=C21 MBSXHYDCWYCSME-UHFFFAOYSA-N 0.000 claims description 2
- CCBSHAWEHIDTIU-UHFFFAOYSA-N 5-propyl-2h-benzotriazole Chemical compound CCCC1=CC=C2NN=NC2=C1 CCBSHAWEHIDTIU-UHFFFAOYSA-N 0.000 claims description 2
- JLGADKXBPJXIOQ-UHFFFAOYSA-N 5-tert-butyl-2h-benzotriazole Chemical compound C1=C(C(C)(C)C)C=CC2=NNN=C21 JLGADKXBPJXIOQ-UHFFFAOYSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- MKBUQYWFFBCMFG-UHFFFAOYSA-N acetic acid propane-1,1-diamine Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CCC(N)N MKBUQYWFFBCMFG-UHFFFAOYSA-N 0.000 claims description 2
- HSANJBZMPJBTRT-UHFFFAOYSA-N acetic acid;1,4,7,10-tetrazacyclododecane Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.C1CNCCNCCNCCN1 HSANJBZMPJBTRT-UHFFFAOYSA-N 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 150000001409 amidines Chemical class 0.000 claims description 2
- JCXKHYLLVKZPKE-UHFFFAOYSA-N benzotriazol-1-amine Chemical compound C1=CC=C2N(N)N=NC2=C1 JCXKHYLLVKZPKE-UHFFFAOYSA-N 0.000 claims description 2
- UVSNFZAOYHOOJO-UHFFFAOYSA-N chembl1343456 Chemical compound OC1=CC=C2N=NNC2=C1 UVSNFZAOYHOOJO-UHFFFAOYSA-N 0.000 claims description 2
- ZZGUZQXLSHSYMH-UHFFFAOYSA-N ethane-1,2-diamine;propanoic acid Chemical compound NCCN.CCC(O)=O.CCC(O)=O ZZGUZQXLSHSYMH-UHFFFAOYSA-N 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- IFQUWYZCAGRUJN-UHFFFAOYSA-N ethylenediaminediacetic acid Chemical compound OC(=O)CNCCNCC(O)=O IFQUWYZCAGRUJN-UHFFFAOYSA-N 0.000 claims description 2
- 150000002466 imines Chemical class 0.000 claims description 2
- MOVBJUGHBJJKOW-UHFFFAOYSA-N methyl 2-amino-5-methoxybenzoate Chemical compound COC(=O)C1=CC(OC)=CC=C1N MOVBJUGHBJJKOW-UHFFFAOYSA-N 0.000 claims description 2
- OKQVTLCUHATGDD-UHFFFAOYSA-N n-(benzotriazol-1-ylmethyl)-2-ethyl-n-(2-ethylhexyl)hexan-1-amine Chemical compound C1=CC=C2N(CN(CC(CC)CCCC)CC(CC)CCCC)N=NC2=C1 OKQVTLCUHATGDD-UHFFFAOYSA-N 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 claims description 2
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- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 claims 1
- 150000002429 hydrazines Chemical class 0.000 claims 1
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 claims 1
- 125000001424 substituent group Chemical group 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 19
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- 238000002604 ultrasonography Methods 0.000 description 1
- AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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Abstract
Description
本出願は、その全体が参照により本明細書に取り込まれる2019年9月10日に出願された米国仮特許出願第62/898,069号の優先権を主張するものである。
1)前記組成物の約0.1重量%~約30重量%の量の少なくとも1種の酸化剤;
2)前記組成物の約0.01重量%~約1重量%の量の少なくとも1種のキレート剤;
3)前記組成物の約1重量%~約30重量%の量の少なくとも1種の有機溶媒;
4)1~6個の炭素原子を含み、前記組成物の約0.1重量%~約5重量%の量である、ジアミン、アルカノールアミン、又は4級アンモニウム化合物を含む少なくとも1種のアミン化合物;及び
5)水、
を含んでもよく、前記組成物は、約6.5~約9.5のpHを有する。
(A)TiSiNフィーチャを含む半導体基板を提供する工程;
(B)前記半導体基板を本明細書に記載のエッチング組成物と接触させる工程;
(C)前記半導体基板を1種又は複数種の適切なリンス溶媒でリンスする工程;及び
(D)所望により、前記半導体基板を乾燥する工程(例:前記リンス溶媒を除去し、前記半導体基板の完全性(integrity)を損なわない任意の適切な手段によって)、
を含む。
配合物ブレンド
エッチング組成物のサンプルを、算出した量の溶媒に、配合物の残りの成分を撹拌しながら添加することによって調製した。均一な溶液が得られた後、所望により含まれてもよい添加剤を用いる場合は添加した。
材料及び方法
膜についてのブランケット膜エッチレート測定を、市販の未パターン化300mm径ウェハを評価のために0.5×0.5インチの試験クーポンにダイシングしたものを用いて行った。試験に用いた主要なブランケット膜材料は、1)シリコン基板上に配置された、19重量%のSiを含み約52Åの厚みを有するTiSiN膜、2)シリコン基板上に配置された、23重量%のSiを含み約56Åの厚みを有するTiSiN膜、及び3)シリコン基板上に配置された、20Åの厚みの酸化ハフニウム(HfOx)膜を含む。
ビーカー試験によるエッチング評価
ブランケット膜エッチング試験及びパターン化クーポンエッチング試験はすべて、60℃に加熱した600mLのガラスビーカーに200gのサンプル溶液を入れ、蒸発によるロスを最小限に抑えるためにParafilm(登録商標)カバーを装着したままにして、250rpmで連続撹拌しながら行った。1つの側で前記サンプル溶液に曝されるパターン又はブランケットの金属膜又は誘電体膜のいずれかを有するブランケット試験クーポン又はパターン化試験クーポンはすべて、ダイヤモンドスクライバによって、ビーカースケール試験用の0.5×0.5インチの正方形試験クーポンサイズにダイシングした。個々の試験クーポンはそれぞれ、単一の長さ4インチのプラスチック製ロッキングピンセットクリップ(locking plastic tweezers clip)を用いて所定の位置に固定した。一方のエッジ部を前記ロッキングピンセットクリップで固定した前記試験クーポンを、600mLガラスビーカー中に吊り下げ、200gの試験溶液を60℃に加熱し250rpmで連続撹拌しながら、前記溶液中に浸漬した。各サンプルクーポンを、前記加熱撹拌溶液中に入れた後すぐに、600mLガラスビーカーの上部をParafilm(登録商標)でカバーして再度密封した。処理時間(一般手順3Aに記載)が経過するまで、前記試験クーポンを前記撹拌加熱溶液中に静かに保持した。前記試験溶液での前記処理時間が経過した後、600mLガラスビーカーから前記サンプルクーポンを直ちに取り出し、一般手順3A(ブランケット試験クーポン)に従ってリンスした。最終DIリンス工程の後、すべての試験クーポンを、手持ち型の窒素ガスブロアーを用いたフィルターされた窒素ガスによる吹き飛ばし工程(filtered nitrogen gas blow off step)に供し、これによって、微量に残ったDI水がすべて強制的に除去され、試験測定用の最終乾燥サンプルを得た。
一般手順3に従う10分間の処理時間の直後に、前記クーポンを、20℃で約1リットル/分のオーバーフローレートの1000mL体積の超高純度脱イオン(DI)水中に15秒間、続いて緩やかに撹拌しながらさらに15秒間浸漬した。一般手順3に従って処理を完了した。
配合例1~10(FE-1~FE-10)を、一般手順1に従って調製し、一般手順2及び一般手順3に従って評価した。前記TiSiN膜及びHfOx膜を60℃で2分間エッチングした。前記配合物を表1にまとめて示し、試験結果を表2にまとめて示す。
Claims (26)
- エッチング組成物であって:
1)前記組成物の約0.1重量%~約30重量%の量の少なくとも1種の酸化剤;
2)前記組成物の約0.01重量%~約1重量%の量の少なくとも1種のキレート剤;
3)前記組成物の約1重量%~約30重量%の量の少なくとも1種の有機溶媒;
4)1~6個の炭素原子を含み、前記組成物の約0.1重量%~約5重量%の量である、ジアミン、アルカノールアミン、又は4級アンモニウム化合物を含む少なくとも1種のアミン化合物;及び
5)水、
を含み、約6.5~約9.5のpHを有する、組成物。 - 約7~約9.5のpHを有する、請求項1に記載の組成物。
- 前記少なくとも1種の酸化剤が、過酸化水素を含む、請求項1に記載の組成物。
- 前記少なくとも1種の酸化剤が、前記組成物の約1重量%~約18重量%の量である、請求項1に記載の組成物。
- 前記少なくとも1種のキレート剤が、ポリアミノポリカルボン酸を含む、請求項1に記載の組成物。
- 前記ポリアミノポリカルボン酸が、モノ又はポリアルキレンポリアミンポリカルボン酸、ポリアミノアルカンポリカルボン酸、ポリアミノアルカノールポリカルボン酸、及びヒドロキシアルキルエーテルポリアミンポリカルボン酸からなる群より選択される、請求項5に記載の組成物。
- 前記ポリアミノポリカルボン酸が、ブチレンジアミン四酢酸、ジエチレントリアミン五酢酸、エチレンジアミン四プロピオン酸、トリエチレンテトラミン六酢酸、1,3-ジアミノ-2-ヒドロキシプロパン-N,N,N’,N’-四酢酸、プロピレンジアミン四酢酸、エチレンジアミン四酢酸、トランス-1,2-ジアミノシクロヘキサン四酢酸、エチレンジアミン二酢酸、エチレンジアミン二プロピオン酸、1,6-ヘキサメチレン-ジアミン-N,N,N’,N’-四酢酸、N,N-ビス(2-ヒドロキシベンジル)エチレンジアミン-N,N-二酢酸、ジアミノプロパン四酢酸、イミノ二酢酸、1,4,7,10-テトラアザシクロドデカン-四酢酸、ジアミノプロパノール四酢酸、及び(ヒドロキシエチル)エチレンジアミン三酢酸からなる群より選択される、請求項6に記載の組成物。
- 前記少なくとも1種のキレート剤が、前記組成物の約0.1重量%~約0.5重量%の量である、請求項1に記載の組成物。
- 少なくとも1種の金属腐食防止剤をさらに含む、請求項1に記載の組成物。
- 前記少なくとも1種の金属腐食防止剤が、置換又は無置換のベンゾトリアゾールを含む、請求項9に記載の組成物。
- 前記少なくとも1種の金属腐食防止剤が、アルキル基、アリール基、ハロゲン基、アミノ基、ニトロ基、アルコキシ基、及びヒドロキシル基からなる群より選択される少なくとも1種の置換基で置換されていてもよいベンゾトリアゾールを含む、請求項10に記載の組成物。
- 前記置換又は無置換のベンゾトリアゾールが、ベンゾトリアゾール、5-アミノベンゾトリアゾール、1-ヒドロキシベンゾトリアゾール、5-フェニルチオール-ベンゾトリアゾール、5-クロロベンゾトリアゾール、4-クロロベンゾトリアゾール、5-ブロモベンゾトリアゾール、4-ブロモベンゾトリアゾール、5-フルオロベンゾトリアゾール、4-フルオロベンゾトリアゾール、ナフトトリアゾール、トリルトリアゾール、5-フェニル-ベンゾトリアゾール、5-ニトロベンゾトリアゾール、4-ニトロベンゾトリアゾール、2-(5-アミノ-ペンチル)-ベンゾトリアゾール、1-アミノ-ベンゾトリアゾール、5-メチル-1H-ベンゾトリアゾール、ベンゾトリアゾール-5-カルボン酸、4-メチルベンゾトリアゾール、4-エチルベンゾトリアゾール、5-エチルベンゾトリアゾール、4-プロピルベンゾトリアゾール、5-プロピルベンゾトリアゾール、4-イソプロピルベンゾトリアゾール、5-イソプロピルベンゾトリアゾール、4-n-ブチルベンゾトリアゾール、5-n-ブチルベンゾトリアゾール、4-イソブチルベンゾトリアゾール、5-イソブチルベンゾトリアゾール、4-ペンチルベンゾトリアゾール、5-ペンチルベンゾトリアゾール、4-ヘキシルベンゾトリアゾール、5-ヘキシルベンゾトリアゾール、5-メトキシベンゾトリアゾール、5-ヒドロキシベンゾトリアゾール、ジヒドロキシプロピルベンゾトリアゾール、1-[N,N-ビス(2-エチルヘキシル)アミノメチル]-ベンゾトリアゾール、5-t-ブチルベンゾトリアゾール、5-(1’,1’-ジメチルプロピル)-ベンゾトリアゾール、5-(1’,1’,3’-トリメチルブチル)ベンゾトリアゾール、5-n-オクチルベンゾトリアゾール、及び5-(1’,1’,3’,3’-テトラメチルブチル)ベンゾトリアゾールからなる群より選択される、請求項10に記載の組成物。
- 前記少なくとも1種の金属腐食防止剤が、前記組成物の約0.1重量%~約0.5重量%の量である、請求項9に記載の組成物。
- 前記少なくとも1種の有機溶媒が、水溶性アルコール、水溶性ケトン、水溶性エステル、及び水溶性エーテルからなる群より選択される溶媒を含む、請求項1に記載の組成物。
- 約5重量%~約25重量%の前記少なくとも1種の有機溶媒を含む、請求項1に記載の組成物。
- 前記少なくとも1種のアミン化合物が、エチレンジアミン、1,2-ジアミノプロパン、1,3-ジアミノプロパン、エタノールアミン、又はテトラメチルアンモニウムフルオライドを含む、請求項1に記載の組成物。
- 前記少なくとも1種のアミン化合物が、前記組成物の約1重量%~約5重量%の量である、請求項1に記載の組成物。
- 前記水が、前記組成物の約35重量%~約98重量%の量である、請求項1に記載の組成物。
- 少なくとも1種の酸をさらに含む、請求項1に記載の組成物。
- 前記少なくとも1種の酸が、無機酸又はスルホン酸を含む、請求項19に記載の組成物。
- 前記少なくとも1種の酸が、前記組成物の約0.1重量%~約5重量%の量である、請求項19に記載の組成物。
- ポリマー、イミン、ヒドラジン、又はアミジンを実質的に含まない、請求項1に記載の組成物。
- TiSiNフィーチャを含む半導体基板をエッチング組成物と接触させて前記TiSiNフィーチャを除去することを含む方法であって、
前記組成物は、少なくとも1種の酸化剤、少なくとも1種のキレート剤、少なくとも1種の有機溶媒、1~6個の炭素原子を含む少なくとも1種のアミン化合物、及び水を含み、前記組成物は、約6.5~約9.5のpHを有する、
方法。 - 前記接触工程の後に、前記半導体基板をリンス溶媒によってリンスすることをさらに含む、請求項23に記載の方法。
- 前記リンス工程の後に、前記半導体基板を乾燥することをさらに含む、請求項24に記載の方法。
- 前記半導体基板中のHfOxを実質的に除去しない、請求項23に記載の方法。
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WO2015142778A1 (en) | 2014-03-18 | 2015-09-24 | Fujifilm Electronic Materials U.S.A., Inc. | Etching composition |
JP7025313B2 (ja) * | 2018-09-19 | 2022-02-24 | 世紀東急工業株式会社 | アスファルト混合物攪拌装置及びアスファルトフィニッシャ |
US11946148B2 (en) * | 2019-01-11 | 2024-04-02 | Versum Materials Us, Llc | Hafnium oxide corrosion inhibitor |
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2020
- 2020-09-02 CN CN202080077761.0A patent/CN114651317A/zh active Pending
- 2020-09-02 WO PCT/US2020/049010 patent/WO2021050333A1/en unknown
- 2020-09-02 KR KR1020227011641A patent/KR20220058948A/ko unknown
- 2020-09-02 JP JP2022515901A patent/JP2022547312A/ja active Pending
- 2020-09-02 EP EP20863776.9A patent/EP4029050A4/en active Pending
- 2020-09-02 US US17/009,857 patent/US11499099B2/en active Active
- 2020-09-08 TW TW109130771A patent/TW202113039A/zh unknown
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IL291119A (en) | 2022-05-01 |
US11499099B2 (en) | 2022-11-15 |
KR20220058948A (ko) | 2022-05-10 |
TW202113039A (zh) | 2021-04-01 |
WO2021050333A1 (en) | 2021-03-18 |
CN114651317A (zh) | 2022-06-21 |
EP4029050A1 (en) | 2022-07-20 |
US20210071078A1 (en) | 2021-03-11 |
EP4029050A4 (en) | 2022-10-12 |
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