JP5648385B2 - 仮固定剤 - Google Patents
仮固定剤 Download PDFInfo
- Publication number
- JP5648385B2 JP5648385B2 JP2010207147A JP2010207147A JP5648385B2 JP 5648385 B2 JP5648385 B2 JP 5648385B2 JP 2010207147 A JP2010207147 A JP 2010207147A JP 2010207147 A JP2010207147 A JP 2010207147A JP 5648385 B2 JP5648385 B2 JP 5648385B2
- Authority
- JP
- Japan
- Prior art keywords
- temporary fixing
- fixing agent
- base material
- semiconductor wafer
- resin component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000834 fixative Substances 0.000 title description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 131
- 239000000463 material Substances 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 39
- 229920005989 resin Polymers 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 24
- 238000000354 decomposition reaction Methods 0.000 claims description 22
- 229920000515 polycarbonate Polymers 0.000 claims description 17
- 239000004417 polycarbonate Substances 0.000 claims description 17
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 13
- 230000004580 weight loss Effects 0.000 claims description 10
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- 239000010410 layer Substances 0.000 description 39
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- 238000006243 chemical reaction Methods 0.000 description 15
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 125000004122 cyclic group Chemical group 0.000 description 12
- 239000011521 glass Substances 0.000 description 12
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- 238000005530 etching Methods 0.000 description 8
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- 239000012190 activator Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
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- KLDXJTOLSGUMSJ-JGWLITMVSA-N Isosorbide Chemical compound O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 KLDXJTOLSGUMSJ-JGWLITMVSA-N 0.000 description 4
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- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
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- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 2
- HYQWHUCTTYCIAU-UHFFFAOYSA-N 1-benzyl-3,4,6,7,8,8a-hexahydro-2h-pyrrolo[1,2-a]pyrimidine Chemical compound C1CCN2CCCC2N1CC1=CC=CC=C1 HYQWHUCTTYCIAU-UHFFFAOYSA-N 0.000 description 2
- HZGJTATYGAJRAL-UHFFFAOYSA-N 3,4,4a,5,6,7,8,8a-octahydro-2h-naphthalene-1,1-diol Chemical compound C1CCCC2C(O)(O)CCCC21 HZGJTATYGAJRAL-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
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- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
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- 150000004650 carbonic acid diesters Chemical class 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
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- CSCWNRYPJNQHQA-UHFFFAOYSA-N dioxido-(2,3,4,5,6-pentafluorophenoxy)borane;(4-methylphenyl)-(4-propan-2-ylphenyl)iodanium Chemical compound [O-]B([O-])OC1=C(F)C(F)=C(F)C(F)=C1F.C1=CC(C(C)C)=CC=C1[I+]C1=CC=C(C)C=C1.C1=CC(C(C)C)=CC=C1[I+]C1=CC=C(C)C=C1 CSCWNRYPJNQHQA-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 239000005340 laminated glass Substances 0.000 description 2
- LGRLWUINFJPLSH-UHFFFAOYSA-N methanide Chemical compound [CH3-] LGRLWUINFJPLSH-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
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- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
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- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000379 polypropylene carbonate Polymers 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 2
- 239000012953 triphenylsulfonium Substances 0.000 description 2
- FAYMLNNRGCYLSR-UHFFFAOYSA-M triphenylsulfonium triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 FAYMLNNRGCYLSR-UHFFFAOYSA-M 0.000 description 2
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- KLDXJTOLSGUMSJ-BXKVDMCESA-N (3s,3as,6s,6as)-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3,6-diol Chemical compound O[C@H]1CO[C@H]2[C@@H](O)CO[C@H]21 KLDXJTOLSGUMSJ-BXKVDMCESA-N 0.000 description 1
- LTQBNYCMVZQRSD-UHFFFAOYSA-N (4-ethenylphenyl)-trimethoxysilane Chemical compound CO[Si](OC)(OC)C1=CC=C(C=C)C=C1 LTQBNYCMVZQRSD-UHFFFAOYSA-N 0.000 description 1
- VNQNXQYZMPJLQX-UHFFFAOYSA-N 1,3,5-tris[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CN2C(N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C(=O)N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C2=O)=O)=C1 VNQNXQYZMPJLQX-UHFFFAOYSA-N 0.000 description 1
- DQNSRQYYCSXZDF-UHFFFAOYSA-N 1,4-bis(ethenoxymethyl)cyclohexane Chemical compound C=COCC1CCC(COC=C)CC1 DQNSRQYYCSXZDF-UHFFFAOYSA-N 0.000 description 1
- GEWWCWZGHNIUBW-UHFFFAOYSA-N 1-(4-nitrophenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C([N+]([O-])=O)C=C1 GEWWCWZGHNIUBW-UHFFFAOYSA-N 0.000 description 1
- VKQJCUYEEABXNK-UHFFFAOYSA-N 1-chloro-4-propoxythioxanthen-9-one Chemical compound S1C2=CC=CC=C2C(=O)C2=C1C(OCCC)=CC=C2Cl VKQJCUYEEABXNK-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- NQFUSWIGRKFAHK-UHFFFAOYSA-N 2,3-epoxypinane Chemical compound CC12OC1CC1C(C)(C)C2C1 NQFUSWIGRKFAHK-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- FPZWZCWUIYYYBU-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl acetate Chemical compound CCOCCOCCOC(C)=O FPZWZCWUIYYYBU-UHFFFAOYSA-N 0.000 description 1
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 1
- DOYKFSOCSXVQAN-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propyl 2-methylprop-2-enoate Chemical compound CCO[Si](C)(OCC)CCCOC(=O)C(C)=C DOYKFSOCSXVQAN-UHFFFAOYSA-N 0.000 description 1
- IKYAJDOSWUATPI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propane-1-thiol Chemical compound CO[Si](C)(OC)CCCS IKYAJDOSWUATPI-UHFFFAOYSA-N 0.000 description 1
- LZMNXXQIQIHFGC-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propyl 2-methylprop-2-enoate Chemical compound CO[Si](C)(OC)CCCOC(=O)C(C)=C LZMNXXQIQIHFGC-UHFFFAOYSA-N 0.000 description 1
- URDOJQUSEUXVRP-UHFFFAOYSA-N 3-triethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CCO[Si](OCC)(OCC)CCCOC(=O)C(C)=C URDOJQUSEUXVRP-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
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- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
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- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
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- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
- JAAHNPNEMPBHSL-UHFFFAOYSA-N n-(2-nitrobenzoyl)imidazole-1-carboxamide Chemical compound [O-][N+](=O)C1=CC=CC=C1C(=O)NC(=O)N1C=NC=C1 JAAHNPNEMPBHSL-UHFFFAOYSA-N 0.000 description 1
- KBJFYLLAMSZSOG-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CCCNC1=CC=CC=C1 KBJFYLLAMSZSOG-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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- KTNLYTNKBOKXRW-UHFFFAOYSA-N phenyliodanium Chemical compound [IH+]C1=CC=CC=C1 KTNLYTNKBOKXRW-UHFFFAOYSA-N 0.000 description 1
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- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
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Description
(1) 基材を加工するために該基材を支持基材に仮固定し、前記基材の加工後に加熱することで前記基材を前記支持基材から脱離させるために用いられる仮固定剤であって、
下記式(2)で表わされるものをカーボネート構成単位として含んでなるポリカーボネートを樹脂成分として含有することを特徴とする仮固定剤。
<仮固定剤>
本発明の仮固定剤は、基材を加工するためにこの基材を支持基材に仮固定し、基材の加工後に加熱することで基材を支持基材から脱離させるために用いられるものであり、少なくとも2つの環状体をカーボネート構成単位に含んでなるポリカーボネートを樹脂成分として含有することを特徴とする。これにより、仮固定剤(樹脂成分)の分解が開始し終了するまでの加熱温度の幅を、230〜450℃程度に設定することが可能となる。
樹脂成分は、少なくとも2つの環状体をカーボネート構成単位に含んでなるポリカーボネートである。
また、仮固定剤は、活性エネルギー線の照射によってエネルギーを加えることにより活性種を発生する活性剤を含み、この活性種の存在下で上述した樹脂成分の50%重量減少温度が低下することが好ましい。これにより、基材へのダメージをより確実に低減させることができる。
また、仮固定剤は、溶媒を含有していても良い。
また、仮固定剤は、酸化防止剤を含んでいてもよい。
また、仮固定剤は、必要により酸捕捉剤、アクリル系、シリコーン系、フッ素系、ビニル系等のレベリング剤、シランカップリング剤、希釈剤等の添加剤等を含んでも良い。
次に、本発明の仮固定剤を、半導体装置の製造に適用した場合を一例に説明する。
(仮固定剤層形成工程)
まず、支持基材1を用意し、この支持基材(基材)1上に、本発明の仮固定剤を用いて、仮固定剤層2を形成する(図1(a)参照)。
次に、支持基材1上の仮固定剤層2が設けられた面上に、半導体ウエハ(基材)3をその機能面31が仮固定剤層2側になるように載置し、これにより、支持基材1に仮固定剤層2を介して半導体ウエハ3を貼り合わせる(図1(b)参照)。
次に、仮固定剤層2を介して支持基材1上に固定された半導体ウエハ3の機能面31と反対側の面(裏面)を加工する。
次に、図1(d)に示すように、仮固定剤層2を加熱することで、仮固定剤層2を構成する仮固定剤(前記樹脂成分)を分解させることにより、仮固定剤層2を気化および/または粘度を低下させる。
次に、半導体ウエハ3を支持基材1から脱離させる。
なお、仮固定剤中に活性剤が含まれる場合、前記加熱工程に先立って、活性剤にエネルギーを付与することを目的に、仮固定剤層2に活性エネルギー線を照射する活性エネルギー線照射工程を経るようにしてもよい。
なお、この活性エネルギー線照射工程は、前記加工工程に先立って行ってもよい。
1.仮固定剤の調製
まず、以下に示すような実施例1〜2および比較例の仮固定剤を調製した。
<ポリカーボネートの合成>
イソソルビド102.01g(0.698モル)、炭酸ジフェニル149.53g(0.698モル)、炭酸セシウム0.0023g(6.98×10−6モル)をそれぞれ秤量し、その後、これらを反応容器に入れた。
そして、反応容器内の圧力を常圧に戻した後、γ−ブチロラクトン1200mLを加え、生成物を溶解させた。
得られたイソソルビド型ポリカーボネート100.0gをγ−ブチロラクトン200.0gに溶解し、樹脂成分濃度33重量%の仮固定剤を調製した。
<仮固定剤の調製>
実施例1で得られたイソソルビドポリカーボネート100.0g、活性剤(光酸発生剤)としてGSID26−1(チバジャパン社製)2.0gをγ−ブチロラクトン198.0gに溶解し、樹脂成分濃度33重量%の仮固定剤を調製した。
<仮固定剤の調製>
ポリプロピレンカーボネート(EMPOWER MATERIALS社製、「型番:QPAC40」)100gをγ−ブチロラクトン(溶剤)310gに溶解した。このポリプロピレンカーボネート溶液に、活性剤(光酸発生剤)のRhodosilPhotoinitiator2074(ローディアジャパン(株)社製Rhodorsil Phoinitiator2074)5g、増感剤の1−クロロ−4−プロポキシチオキサントン(英Lambson社製SPEEDCURE CPTX(商品名))1.5gをγ−ブチロラクトン(溶剤)30gに溶解させた溶液を加えて、攪拌し、樹脂濃度24重量%の仮固定剤を作製した。
<重量減少温度>
上記で調製した実施例1〜2および比較例の仮固定剤について、ぞれぞれ、TG/DTA装置(セイコーインスツルメンツ社製、「型番:6200型」)により、仮固定剤の5%重量減少温度、50%重量減少温度および95%重量減少温度を測定した(雰囲気:窒素、昇温速度:10℃/分)。
上記で調製した実施例1〜2および比較例の仮固定剤について厚さ50μmのフィルムになる条件でシリコンウエハ上に塗布し、大気中で120℃で5分間ソフトベークした。
さらに、上記実施例1、2および比較例で調製した仮固定剤を使用して、それぞれ、上述した半導体装置の製造方法と同様の方法で、半導体装置の製造を行った。
2 仮固定剤層
3 半導体ウエハ
31 機能面
Claims (6)
- 前記仮固定剤の前記加熱により、前記樹脂成分が分解することで、前記支持基材から前記基材が脱離される請求項1に記載の仮固定剤。
- 分解が開始し終了するまでの前記加熱温度の幅は、230〜450℃である請求項1または2に記載の仮固定剤。
- 50%重量減少温度が320〜400℃である請求項1ないし3のいずれかに記載の仮固定剤。
- 180℃における溶融粘度が1〜300Pa・sである請求項1ないし4のいずれかに記載の仮固定剤。
- 前記樹脂成分への活性エネルギー線の照射により、前記溶融粘度が低下する請求項5に記載の仮固定剤。
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