JP6350080B2 - 半導体基板洗浄用組成物 - Google Patents
半導体基板洗浄用組成物 Download PDFInfo
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- JP6350080B2 JP6350080B2 JP2014157071A JP2014157071A JP6350080B2 JP 6350080 B2 JP6350080 B2 JP 6350080B2 JP 2014157071 A JP2014157071 A JP 2014157071A JP 2014157071 A JP2014157071 A JP 2014157071A JP 6350080 B2 JP6350080 B2 JP 6350080B2
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- 238000010494 dissociation reaction Methods 0.000 claims description 8
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- 229940043265 methyl isobutyl ketone Drugs 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- QJQAMHYHNCADNR-UHFFFAOYSA-N n-methylpropanamide Chemical compound CCC(=O)NC QJQAMHYHNCADNR-UHFFFAOYSA-N 0.000 description 1
- ABMFBCRYHDZLRD-UHFFFAOYSA-N naphthalene-1,4-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1 ABMFBCRYHDZLRD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- UMRZSTCPUPJPOJ-KNVOCYPGSA-N norbornane Chemical compound C1C[C@H]2CC[C@@H]1C2 UMRZSTCPUPJPOJ-KNVOCYPGSA-N 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 125000000538 pentafluorophenyl group Chemical group FC1=C(F)C(F)=C(*)C(F)=C1F 0.000 description 1
- YPJUNDFVDDCYIH-UHFFFAOYSA-N perfluorobutyric acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)F YPJUNDFVDDCYIH-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 239000003279 phenylacetic acid Substances 0.000 description 1
- 229960003424 phenylacetic acid Drugs 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000565 sulfonamide group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 125000004205 trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 1
- 125000004360 trifluorophenyl group Chemical group 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0014—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by incorporation in a layer which is removed with the contaminants
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/10—Esters
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/10—Esters
- C08F120/22—Esters containing halogen
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/10—Esters
- C08F120/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F120/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F132/00—Homopolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
- C08F132/08—Homopolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
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Description
本発明に係る半導体基板洗浄用組成物(以下、単に「洗浄用組成物」ともいう)は、半導体基板を洗浄するために用いられる組成物である。当該洗浄用組成物を用いて半導体基板の表面に膜を形成し、この膜を除去することによって、基板の表面、特にパターン間等に付着したパーティクル等を効率よく除去することができる。
以下、各成分について説明する。
[A]溶媒は、[B]重合体を溶解又は分散するものであれば用いることができるが、[B]重合体を溶解するものであることが好ましい。また、[C]有機酸を添加する場合、[C]有機酸を溶解するものであることが好ましい。
[B]重合体はフッ素原子、ケイ素原子又はこれらの組み合わせを含む重合体である。
[B]重合体の種類は特に限定されないが、合成の容易性、除去性の向上の観点から、ポリ(メタ)アクリレート、環状ポリオレフィン、ポリスチレン誘導体が好ましい。
上記式(1−1)中、R1は、水素原子、フッ素原子、メチル基又は−COOR’である。R’は、炭素数1〜20の1価の炭化水素基である。R2は、単結合、−O−、−CO−、−COO−又は−CONH−である。R3は、炭素数1〜20の(m+1)価の有機基である。mは、1〜3の整数である。mが1の場合、R3は単結合であってもよい。
上記式(1−2)中、R2’は、単結合、−O−、−COO−又は−CONH−である。R3’は、炭素数1〜20の(n+1)価の有機基である。nは、1〜3の整数である。nが1の場合、R3’は単結合であってもよい。
上記R2’としては、単結合が好ましい。
上記炭素数1〜20のk価の炭化水素基としては、例えば、炭素数1〜20のk価の鎖状炭化水素基、炭素数3〜20のk価の脂環式炭化水素基、炭素数6〜20のk価の芳香族炭化水素基等が挙げられる。
上記炭素数1〜20のk価の鎖状炭化水素基としては、例えば、メタン、エタン、プロパン、ブタン等のアルカン、エテン、プロペン、ブテン等のアルケン、エチン、プロピン、ブチン等のアルキンなどからk個の水素原子を除いた基等が挙げられる。
上記炭素数3〜20のk価の脂環式炭化水素基としては、例えば、シクロプロパン、シクロブタン、シクロペンタン、シクロヘキサン、ノルボルナン、アダマンタン等のシクロアルカン、シクロペンテン、シクロヘキセン、ノルボルネン等のシクロアルケンなどからk個の水素原子を除いた基等が挙げられる。
上記炭素数6〜20のk価の芳香族炭化水素基としては、例えば、ベンゼン、トルエン、ナフタレン、アントラセン等のアレーン、トルエン、エチルベンゼン、メチルナフタレン等のアルキルアレーンなどからk個の水素原子を除いた基等が挙げられる。
上記2価及び1価のヘテロ原子含有基が有するヘテロ原子としては、例えば、酸素原子、窒素原子、硫黄原子、リン原子等が挙げられる。
上記2価のヘテロ原子含有基としては、例えば、−O−、−NH−、−S−、−CO−、−CS−、これらのうちの2つ以上を組み合わせた基等が挙げられる。
上記1価のヘテロ原子含有基としては、例えば、ヒドロキシ基、アミノ基、シアノ基、ニトロ基等が挙げられる。
上記R3’としては、単結合、炭化水素基が好ましく、鎖状炭化水素基がより好ましく、nが1の場合、メタンジイル基がさらに好ましい。
上記nとしては、1が好ましい。
構造単位(II)の含有割合の下限としては、[B]重合体を構成する全構造単位に対して10モル%が好ましく、20モル%がより好ましく、30モル%がさらに好ましい。上記含有割合の上限としては、100モル%が好ましく、70モル%がより好ましく、50モル%がさらに好ましい。
構造単位(I)及び構造単位(II)の合計含有割合の下限としては、[B]重合体を構成する全構造単位に対して、30モル%が好ましく、60モル%がより好ましく、90モル%がさらに好ましく、95モル%が特に好ましい。上記合計含有割合の上限としては、100モル%が好ましい。
構造単位(I)及び構造単位(II)の含有割合を上記範囲とすることで、膜の除去性をより向上させることができる。
[B]重合体のケイ素原子含有率の下限としては、1質量%が好ましく、5質量%がより好ましく、10質量%がさらに好ましく、15質量%が特に好ましい。上記ケイ素原子含有率の上限としては、40質量%が好ましく、30質量%がより好ましく、25質量%がさらに好ましい。
[B]重合体のフッ素原子及びケイ素原子の合計含有率の下限としては、2質量%が好ましく、8質量%がより好ましく、15質量%がさらに好ましく、25質量%が特に好ましい。上記合計含有率の上限としては、65質量%が好ましく、55質量%がより好ましく、45質量%がさらに好ましい。
フッ素原子及びケイ素原子の含有率を上記範囲とすることで、膜の除去性をより向上させることができる。
なお、[B]重合体のフッ素原子含有率及びケイ素原子含有率は、重合体の構造を19F−NMR又は29Si−NMR測定により求め、その構造から算出することができる。
[C]有機酸は、重合体でない有機酸である。本発明に係る洗浄用組成物は、さらに[C]有機酸を含むことができる。[C]有機酸を加えることにより、基板表面に形成された膜の除去がより容易となる。[C]有機酸の分子量の上限としては、例えば、500であり、400が好ましく、300がより好ましい。[C]有機酸の分子量の下限としては、例えば、50であり、55が好ましい。
酢酸、プロピオン酸、ブタン酸、ペンタン酸、ヘキサン酸、シクロヘキサンカルボン酸、シクロヘキシル酢酸、1−アダマンタンカルボン酸、安息香酸、フェニル酢酸等のモノカルボン酸;
ジフルオロ酢酸、トリフルオロ酢酸、ペンタフルオロプロパン酸、ヘプタフルオロブタン酸、フルオロフェニル酢酸、ジフルオロ安息香酸等のフッ素原子含有モノカルボン酸;
10−ヒドロキシデカン酸、チオール酢酸、5−オキソヘキサン酸、3−メトキシシクロヘキサンカルボン酸、カンファーカルボン酸、ジニトロ安息香酸、ニトロフェニル酢酸、乳酸、グリコール酸、グリセリン酸、サリチル酸、アニス酸、没食子酸、フランカルボン酸等のヘテロ原子含有モノカルボン酸;
(メタ)アクリル酸、クロトン酸、ケイ皮酸等の二重結合含有モノカルボン酸などのモノカルボン酸化合物、
シュウ酸、マロン酸、コハク酸、グルタル酸、アジピン酸、ドデカンジカルボン酸、プロパントリカルボン酸、ブタンテトラカルボン酸、ヘキサフルオログルタル酸、シクロヘキサンヘキサカルボン酸、1,4−ナフタレンジカルボン酸、フタル酸、イソフタル酸、テレフタル酸、トリメリット酸、ピロメリット酸等のポリカルボン酸;
上記ポリカルボン酸の部分エステル化物;
ジフルオロマロン酸、テトラフルオロフタル酸等のフッ素原子含有ポリカルボン酸;
酒石酸、クエン酸、リンゴ酸、タルトロン酸、ジグリコール酸、イミノジ酢酸等のヘテロ原子含有ポリカルボン酸;
マレイン酸、フマル酸等の二重結合含有ポリカルボン酸などのポリカルボン酸化合物などが挙げられる。
当該洗浄用組成物中の全固形分に対する[C]有機酸の含有量の下限としては、0.5質量%が好ましく、1質量%がより好ましく、3質量%がさらに好ましい。上記含有量の上限としては、30質量%が好ましく、20質量%がより好ましく、10質量%がさらに好ましい。
[C]有機酸の含有量を上記下限と上記上限との間とすることで、膜の除去をより容易とすることができる。
当該洗浄用組成物は、上記[A]〜[C]成分以外のその他の任意成分を含有していてもよい。その他の任意成分としては、例えば、界面活性剤等が挙げられる。
上記界面活性剤の含有量としては、通常、2質量%以下であり、1質量%以下が好ましい。
当該洗浄用組成物を用いた半導体基板の洗浄方法は、当該洗浄用組成物を半導体基板表面に塗工する工程(以下、「塗工工程」ともいう)と、形成された膜を除去する工程(以下、「除去工程」ともいう)とを備える。上述の洗浄用組成物を用いて基板表面に膜を形成することにより、基板表面の異物を効率よく除去することができる。さらに、形成される膜は基板表面から容易に除去できる。このため、上述の洗浄用組成物は様々な材質からなる基板に対し適用することができる。適用可能な基板の例として、シリコン基板、アルミニウム基板、ニッケル基板、クロム基板、モリブデン基板、タングステン基板、銅基板、タンタル基板、チタン基板等の金属又は半金属基板;窒化ケイ素基板、アルミナ基板、二酸化ケイ素基板、窒化タンタル基板、窒化チタン等のセラミック基板等が挙げられる。これらの中で、シリコン基板、窒化ケイ素基板、窒化チタン基板が好ましく、窒化ケイ素基板がより好ましい。
重合体の原料として用いた化合物を以下に示す。
化合物(M−1)100g(100モル%)及びアゾビスイソブチロニトリル(AIBN)7.29g(7モル%)を2−ブタノン100gに溶解させた単量体溶液を準備した。100gの2−ブタノンを投入した1,000mLの三口フラスコを30分窒素パージした。窒素パージの後80℃に加熱し、攪拌しながら上記単量体溶液を滴下漏斗を用いて3時間かけて滴下した。滴下開始を重合開始時間とし、6時間重合させた。重合終了後、反応溶液を30℃以下に冷却した。反応溶液を質量が150gになるまで減圧濃縮した。メタノール150g及びn−ヘキサン750gを投入し、分離させた。分離後、下層液を回収した。回収した下層液にn−ヘキサン750gを投入し、再度分離精製した。分離後、下層液を回収した。回収した下層液から溶媒を除去し、4−メチル−2−ペンタノールを加えて、重合体(P−1)を含む溶液を得た。結果を表1に示す。
使用する化合物及び組み合わせを表1の通り変えた他は製造例1と同様にして重合体(P−2)〜(P−22)を合成した。
(実施例1)
重合体(P−1)100質量部、4−メチル−2−ペンタノール(MIBC)7,400質量部を混合し、均一溶液とした。この溶液をHDPE製のフィルター(孔径5nm、日本Pall社製 PhotoKleen EZD)を用いて濾過した。液中の150μm以下のパーティクルが10個/mLまで減少したことを液中パーティクルカウンタ(リオン社製、KS−41B)で確認し、洗浄用組成物(D−1)を調製した。固形分濃度は約1.5質量%であった。
用いる溶媒及び重合体を表2の通り変えた他は実施例1と同様にして洗浄用組成物(D−2)〜(D−38)及び比較組成物(CD−1),(CD−2)を調製した。
重合体(P−1)100質量部、有機酸として酒石酸(C−1)5.0質量部及び溶媒として4−メチル−2−ペンタノール7,400質量部を混合し、均一溶液とした。この溶液をHDPE製のフィルター(孔径5nm、日本Pall社製 PhotoKleen EZD)を用いて濾過した。液中の150μm以下のパーティクルが10個/mLまで減少したことを液中パーティクルカウンタ(リオン社製、KS−41B)で確認し、洗浄用組成物(D−31)を調製した。固形分濃度は約1.5質量%であった。
溶媒、重合体及び有機酸を表2の通り変えた他は実施例31と同様(溶媒は、その総質量を実施例31と同じとした)にして、洗浄用組成物(D−32)〜(D−38)及び比較組成物(CD−3)〜(CD−6)を調製した。
MIBC:4−メチル−2−ペンタノール
PGME:プロピレングリコールモノメチルエーテル
DIAE:ジイソアミルエーテル
GBL:γ−ブチロラクトン
PGMEA:プロピレングリコールモノメチルエーテルアセテート
EL:乳酸エチル
CHN:シクロヘキサノン
BuOAc:酢酸ブチル
PGEE:プロピレングリコールモノエチルエーテル
MMP:3−メトキシプロピオン酸メチル
構造式を以下に示す。
C−1:酒石酸
C−2:シュウ酸
C−3:クエン酸
C−4:マレイン酸
C−5:リンゴ酸
C−6:フマル酸
C−7:フタル酸
C−8:テレフタル酸
C−9:ポリアクリル酸(和光純薬製ポリアクリル酸5000)
C−10:トリフェニルスルホニウムノナn−ブタンスルホネート
予め粒径200nmのシリカ粒子を付着させた12インチウェハ上に、上述の基板洗浄装置を使用してスピンコート法により各組成物の樹脂膜を形成した。樹脂膜が形成されたものについて、除去液を供給し、樹脂膜を除去した。膜除去性は、除去液の供給開始から20秒以内に全ての樹脂膜の除去が完了したものを「A」と、20秒を超えて1分以内に完了したものを「B」と、1分以内に除去が完了しなかったものを「C」と判定した。また、除去工程後にウェハ上に残存したシリカ粒子数を暗視野欠陥装置(SP2、KLA−TENCOR社製)を用いて分析した。粒子除去性は、シリカ粒子の除去率が90%以上のものを「S」と、70%以上90%未満のものを「A」と、30%以上70%未満のものを「B」と、30%未満のものを「C」と判定した。なお、樹脂膜が形成できなかったものについては粒子除去性の欄に「塗布不可」と記載した。
ウェハとしてシリコンウェハを、洗浄用組成物として組成物(D−1)〜(D−38)及び比較用組成物(CD−1)〜(CD−6)を、除去液として表3に示すもの(現像液(2.38質量%のテトラメチルアンモニウムヒドロキシド水溶液)又は水)をそれぞれ用い、上述の評価方法にしたがって粒子除去性及び膜除去性を評価した。結果を表3に示す。
シリコンウェハを窒化シリコン又は窒化チタンに、用いる洗浄用組成物と除去液との組み合わせを表4の通り変えた他は上記と同様にして粒子除去性及び膜除去性を評価した。結果を表4に示す。
Claims (8)
- 溶媒と、
フッ素原子、ケイ素原子又はこれらの組み合わせを含む重合体と
を含有し、
重合体でない有機酸をさらに含有し、
基板表面に膜を形成して用いられる半導体基板洗浄用組成物。 - 上記溶媒中の水の含有量が20質量%以下である請求項1に記載の半導体基板洗浄用組成物。
- 上記有機酸が多価カルボン酸である請求項1又は請求項2に記載の半導体基板洗浄用組成物。
- 上記重合体の酸解離定数が上記有機酸の酸解離定数よりも小さい請求項1、請求項2又は請求項3に記載の半導体基板洗浄用組成物。
- 上記有機酸の25℃における水に対する溶解度が5質量%以上である請求項1から請求項4のいずれか1項に記載の半導体基板洗浄用組成物。
- 上記有機酸が25℃において固体である請求項1から請求項5のいずれか1項に記載の半導体基板洗浄用組成物。
- 上記重合体の含有量が0.5質量%以上50質量%以下である請求項1から請求項6のいずれか1項に記載の半導体基板洗浄用組成物。
- 窒化ケイ素基板又は窒化チタン基板を洗浄するために用いられる請求項1から請求項7のいずれか1項に記載の半導体基板洗浄用組成物。
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JP6674628B2 (ja) * | 2016-04-26 | 2020-04-01 | 信越化学工業株式会社 | 洗浄剤組成物及び薄型基板の製造方法 |
JP6112330B1 (ja) * | 2016-05-10 | 2017-04-12 | Jsr株式会社 | 半導体洗浄用組成物および洗浄方法 |
JP6695749B2 (ja) * | 2016-06-30 | 2020-05-20 | ライオン株式会社 | 清浄化用皮膜形成剤およびこれを用いた清浄化処理方法 |
JP6899220B2 (ja) * | 2017-01-11 | 2021-07-07 | 株式会社ダイセル | レジスト除去用組成物 |
WO2018190278A1 (ja) * | 2017-04-13 | 2018-10-18 | Jsr株式会社 | 半導体基板洗浄用組成物 |
JPWO2019009054A1 (ja) * | 2017-07-03 | 2020-04-16 | 東京エレクトロン株式会社 | 基板処理システム、基板洗浄方法および記憶媒体 |
JP7227757B2 (ja) | 2018-05-31 | 2023-02-22 | 株式会社Screenホールディングス | 基板処理方法および基板処理装置 |
JP2020096115A (ja) * | 2018-12-14 | 2020-06-18 | メルク、パテント、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツングMerck Patent GmbH | 基板洗浄液、これを用いる洗浄された基板の製造方法およびデバイスの製造方法 |
KR20210126668A (ko) * | 2019-02-15 | 2021-10-20 | 닛산 가가쿠 가부시키가이샤 | 세정제 조성물 및 세정 방법 |
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WO2020235605A1 (ja) * | 2019-05-22 | 2020-11-26 | 信越化学工業株式会社 | 洗浄剤組成物、基板の洗浄方法及び支持体又は基板の洗浄方法 |
JP7220119B2 (ja) * | 2019-05-22 | 2023-02-09 | 信越化学工業株式会社 | 基板用仮接着剤の洗浄液、基板の洗浄方法および支持体または基板の洗浄方法 |
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US20170240851A1 (en) | 2017-08-24 |
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