JPH1135552A - 新規なジアゾメタン化合物 - Google Patents
新規なジアゾメタン化合物Info
- Publication number
- JPH1135552A JPH1135552A JP9198955A JP19895597A JPH1135552A JP H1135552 A JPH1135552 A JP H1135552A JP 9198955 A JP9198955 A JP 9198955A JP 19895597 A JP19895597 A JP 19895597A JP H1135552 A JPH1135552 A JP H1135552A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- diazomethane
- formula
- mol
- group
- 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.)
- Granted
Links
- -1 diazomethane compound Chemical class 0.000 title claims abstract description 32
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 20
- 239000002253 acid Substances 0.000 abstract description 17
- 239000002904 solvent Substances 0.000 abstract description 8
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 abstract description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 7
- ZDYVRSLAEXCVBX-UHFFFAOYSA-N pyridinium p-toluenesulfonate Chemical compound C1=CC=[NH+]C=C1.CC1=CC=C(S([O-])(=O)=O)C=C1 ZDYVRSLAEXCVBX-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 3
- 239000012433 hydrogen halide Substances 0.000 abstract description 3
- 229910000039 hydrogen halide Inorganic materials 0.000 abstract description 3
- 239000002516 radical scavenger Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 17
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000000862 absorption spectrum Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- NDLIRBZKZSDGSO-UHFFFAOYSA-N tosyl azide Chemical compound CC1=CC=C(S(=O)(=O)[N-][N+]#N)C=C1 NDLIRBZKZSDGSO-UHFFFAOYSA-N 0.000 description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- HJGLQWVNLWALRC-UHFFFAOYSA-N 1-[diazo-[2-(1-ethoxyethoxy)cyclohexyl]sulfonylmethyl]sulfonyl-2-(1-ethoxyethoxy)cyclohexane Chemical compound CCOC(C)OC1CCCCC1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1C(OC(C)OCC)CCCC1 HJGLQWVNLWALRC-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
- FJBFPHVGVWTDIP-UHFFFAOYSA-N dibromomethane Chemical compound BrCBr FJBFPHVGVWTDIP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- ATPSGQZYXQXZSB-UHFFFAOYSA-N 1-[(2-hydroxy-7,7-dimethyl-1-bicyclo[2.2.1]heptanyl)methylsulfanylmethylsulfanylmethyl]-7,7-dimethylbicyclo[2.2.1]heptan-2-ol Chemical compound C1CC(C2(C)C)CC(O)C12CSCSCC1(C(O)C2)CCC2C1(C)C ATPSGQZYXQXZSB-UHFFFAOYSA-N 0.000 description 2
- KRJKJPUCTMAOTK-UHFFFAOYSA-N 1-[(2-hydroxy-7,7-dimethyl-1-bicyclo[2.2.1]heptanyl)methylsulfonylmethylsulfonylmethyl]-7,7-dimethylbicyclo[2.2.1]heptan-2-ol Chemical compound C1CC(C2(C)C)CC(O)C12CS(=O)(=O)CS(=O)(=O)CC1(C(O)C2)CCC2C1(C)C KRJKJPUCTMAOTK-UHFFFAOYSA-N 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- CNSGSCCMMSVAMW-UHFFFAOYSA-N 2-[(2-hydroxycyclohexyl)sulfonylmethylsulfonyl]cyclohexan-1-ol Chemical compound OC1CCCCC1S(=O)(=O)CS(=O)(=O)C1C(O)CCCC1 CNSGSCCMMSVAMW-UHFFFAOYSA-N 0.000 description 2
- ZSFZUHTWQAPDCS-UHFFFAOYSA-N 2-[diazo-(2-hydroxycyclohexyl)sulfonylmethyl]sulfonylcyclohexan-1-ol Chemical compound OC1CCCCC1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1C(O)CCCC1 ZSFZUHTWQAPDCS-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- KPJQEIHXBJFQDP-UHFFFAOYSA-N 2-sulfanylcyclohexan-1-ol Chemical compound OC1CCCCC1S KPJQEIHXBJFQDP-UHFFFAOYSA-N 0.000 description 1
- MSIPIPSIPFSYRF-UHFFFAOYSA-N 3,4-dimethylbicyclo[2.2.1]heptane Chemical group C1CC2(C)C(C)CC1C2 MSIPIPSIPFSYRF-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 125000005083 alkoxyalkoxy group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- NZZFYRREKKOMAT-UHFFFAOYSA-N diiodomethane Chemical compound ICI NZZFYRREKKOMAT-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920003986 novolac Polymers 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
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Materials For Photolithography (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
有用な新規なジアゾメタン化合物を提供する。 【解決手段】 一般式 【化1】 (式中のRはそれぞれ水素原子であるか、又は同一環中
の2個のRでジメチルメチレン基を形成する基であり、
R1及びR2はそれぞれ低級アルキル基であり、nは0又
は1である)とする。
Description
トの酸発生剤として好適な新規なスルホニル基をもつジ
アゾメタン化合物に関するものである。
においては、化学増幅型レジスト組成物が使用されるよ
うになってきた。この化学増幅型レジスト組成物は、放
射線の照射により生成した酸の触媒作用を利用したレジ
ストであって、高い感度と解像性を有し、放射線の照射
により酸を発生する化合物すなわち酸発生剤の使用量が
少なくてよいという利点を有している。
型の2つのタイプがあり、これらは、一般に、酸発生剤
と、発生する酸の作用によりアルカリ水溶液に対する溶
解性が変化する被膜形成成分とを基本成分としている。
成分として、通常tert‐ブトキシカルボニル基、テ
トラヒドロピラニル基などの溶解抑制基で水酸基の一部
を保護したポリヒドロキシスチレンなどが用いられてお
り、一方、ネガ型レジストにおいては、被膜形成成分と
して、通常上記溶解抑制基で水酸基の一部を保護したポ
リヒドロキシスチレン、あるいはポリヒドロキシスチレ
ンやノボラック樹脂などの樹脂成分に、メラミン樹脂や
尿素樹脂などの酸架橋性物質を組み合わせたものが用い
られている。
る種のジアゾメタン化合物が用いられているが(特開平
3−103854号公報、特開平4−210960号公
報、特開平4−217249号公報)、これらを用いた
レジスト組成物は、露光部と未露光部のコントラストに
劣るため、残膜率が十分でないという欠点を有してい
る。
従来のジアゾメタン化合物がもつ欠点を克服し、化学増
幅型レジストの酸発生剤として用いた場合、露光部と未
露光部のコントラストに優れ、解像性及びパターン形状
などが向上したレジストパターンを与えるとともに、高
残膜率を示す化学増幅型レジストが得られる新規なジア
ゾメタン化合物を提供することを目的としてなされたも
のである。
れた機能を有する新規なジアゾメタン化合物を開発すべ
く鋭意研究を重ねた結果、低級アルコキシアルコキシ基
を有するシクロヘキサン環又は7,7‐ジメチル‐ビシ
クロ[2.2.1]ヘプタン環を両端にもつ特定構造の
ビススルホニルジアゾメタンが、文献未載の新規な化合
物であって、その目的に適合しうることを見出し、この
知見に基づいて本発明を完成するに至った。
の2個のRでジメチルメチレン基を形成する基であり、
R1及びR2はそれぞれ低級アルキル基であり、nは0又
は1である)で表わされるジアゾメタン化合物を提供す
るものである。
前記一般式(I)で表わされる文献未載の新規な化合物
であって、この一般式(I)におけるR1及びR2で示さ
れる低級アルキル基としては、メチル基、エチル基、n
‐プロピル基、イソプロピル基、n‐ブチル基、イソブ
チル基、sec‐ブチル基、tert‐ブチル基などが
挙げられる。このR1及びR2は、たがいに同一であって
もよいし、異なっていてもよい。また、R2OCH
(R1)O−としては、酸発生剤としての性能及び合成
の容易さなどの点から1‐エトキシエチルオキシ基が好
適である。
水素原子である場合には、一般式
わすことができ、一方、Rが同一環中の2個のRでジメ
チルメチレン基を形成する場合には、一般式
わすことができる。
ン化合物は、化学増幅型レジストの酸発生剤として好適
であり、このものを酸発生剤として用いた場合、露光部
と未露光部のコントラストに優れ、その結果、解像性、
パターン形状、残膜率(ポジ型の場合は未露光部、ネガ
型の場合は露光部)などの向上をもたらすとともに、十
分な感度を示す化学増幅型レジストが得られる。
ン化合物は、例えば反応式
1、R2及びnは前記と同じ意味をもつ)に従い製造する
ことができる。
とメチレンハライド(III)とを、メタノールやエタ
ノールなどのアルコール類、トルエンなどの芳香族炭化
水素などの溶媒中において、ハロゲン化水素捕捉剤の存
在下に反応させて、一般式(IV)で表わされる化合物
を得たのち、これを過酸化水素などの酸化剤により酸化
して、ビススルホニルメタン体(V)を得る。次いで、
このビススルホニルメタン体(V)を、メタノールやエ
タノールなどのアルコール類、トルエンなどの芳香族炭
化水素などの溶媒中において、トシルアジドなどのジア
ゾ化剤によりジアゾ化して、ビススルホニルジアゾメタ
ン体(VI)を得る。最後に、このビススルホニルジア
ゾメタン体(VI)を、ジオキサンのようなエーテル類
などの溶媒中において、一般式(VII)で表わされる
アルコキシアルケンを反応させたのち、生成物を公知の
方法により、分離、精製することにより、目的の一般式
(I)で表わされるジアゾメタン化合物が得られる。
(III)の例としては、メチレンクロリド、メチレン
ブロミド、メチレンヨージドを挙げることができる。ま
た、この反応で用いるハロゲン化水素捕捉剤としては、
水酸化アルカリなどが好適である。
化水素により酸化して、対応するビススルホニルメタン
体(V)に変換する場合には、タングステン酸アルカリ
などの触媒を使用するのが有利である。また、ビススル
ホニルメタン体(V)をトシルアジドでジアゾ化して対
応するビススルホニルジアゾメタン体(VI)に変換す
る場合には、通常、水酸化アルカリなどのアルカリの存
在下でジアゾ化が行われる。さらに、ビススルホニルジ
アゾメタン体(VI)の水酸基に、一般式(VII)で
表わされるアルコキシアルケンを付加させる反応におい
ては、p‐トルエンスルホン酸ピリジニウムなどの触媒
を用いるのが好ましい。
で表わされるジアゾメタン化合物は、これを酸発生剤と
して被膜形成成分と混合し、化学増幅型レジスト組成物
を調製することができる。この際の配合量としては、被
膜形成成分100重量部に対し、0.5〜20重量部が
適当である。
明するが、本発明は、これらの例によってなんら限定さ
れるものではない。なお、ポジ型レジスト組成物の諸物
性は、次のようにして求めた。
し、これをホットプレート上で90℃、90秒間乾燥し
て膜厚0.7μmのレジスト膜を得た。この膜に縮小投
影露光装置NSR−2005EX8A(ニコン社製)を
用いて1mJ/cm2ずつドーズ量を加え露光したの
ち、110℃で90秒間加熱し、次いで2.38重量%
テトラメチルアンモニウムヒドロキシド水溶液で23℃
にて60秒間現像処理し、さらに30秒間水洗後、乾燥
した。この際、現像後の露光部の膜厚が0となる最小露
光時間を感度としてmJ/cm2(エネルギー量)単位
で測定した。
パターンを再現する露光量における限界解像度で示し
た。 (3)レジストパターン形状 上記(1)と同様な操作を行い、0.25μmの矩形の
レジストパターンが得られた場合を○、レジストパター
ントップがやや細いパターンとなったり、波打ったレジ
ストパターンとなった場合を×として評価した。
0分間放置したあと、同様に110℃で90秒間加熱
し、次いで現像処理を行い、0.25μmのレジストパ
ターンの断面形状をSEM(走査型電子顕微鏡)写真に
より観察した。0.25μmのラインアンドスペースが
1:1に形成されたものを5、ライン幅(レジストパタ
ーン幅)が0.25μmより広くなり、スペース幅が
0.25μmより狭くなったものを3、解像しないもの
を1とし、その中間のものをそれぞれ4及び2として評
価した。 (5)残膜率 上記(1)と同様の操作を行い、未露光部の残膜率を現
像前膜厚に対する現像後膜厚の割合として求めた。
ヘキシルスルホニル]ジアゾメタンの製造 エタノール50gに2‐ヒドロキシシクロヘキサンチオ
ール50g(0.38モル)を溶解し、これに15重量
%水酸化カリウムエタノール溶液140g(0.37モ
ル)を加えたのち、メチレンブロミド33g(0.19
モル)を室温にて30分間かけて滴下した。この反応混
合物をさらに室温で1.5時間かき混ぜたのち、析出し
た臭化カリウムをろ去し、次いで、タングステン酸ナト
リウム0.6g(0.002モル)を加え、さらに35
重量%過酸化水素水95g(0.98モル)を50℃で
1時間かけて滴下した。この反応混合物をさらに50℃
で20時間かき混ぜたのち、水300gを加え、酢酸エ
チル300gで抽出後、溶媒を留去し、ビス(2‐ヒド
ロキシシクロヘキシルスルホニル)メタン36.6gを
黄色油状物として得た。
キシルスルホニル)メタン25g(0.075モル)と
トシルアジド15g(0.075モル)をエタノール8
0gに溶かし、これに10重量%水酸化カリウム水溶液
85g(0.15モル)を室温で30分間かけて滴下し
た。この反応混合物に水125gを加えたのち、室温で
1時間かき混ぜ、次いで析出した結晶をろ取し、ビス
(2‐ヒドロキシシクロヘキシルスルホニル)ジアゾメ
タン8.1gを得た。
ヘキシルスルホニル)ジアゾメタン5g(0.014モ
ル)とエチルビニルエーテル3g(0.042モル)を
ジオキサン50gに溶解し、p‐トルエンスルホン酸ピ
リジニウム0.1gを加え、室温にて20時間かき混ぜ
た。次いで、酢酸エチル30gで抽出後、溶媒を留去
し、さらにシリカゲルカラムクロマトグラフィーにより
分離することにより、目的物であるビス[2‐(1‐エ
トキシエチルオキシ)シクロヘキシルスルホニル]ジア
ゾメタン
測定した結果、2120cm-1にピークが認められた
(CN2)。また、プロトン核磁気共鳴スペクトル(1H
−NMR)を測定した結果[溶媒:CDCl3]、1.
1〜2.4ppm(28H,シクロヘキサン環メチレ
ン、−CH2−CH3 )、3.4〜4.0ppm(8H,
シクロヘキサン環メチレン,−CH2 −CH3)、4.8
〜4.9ppm(2H,−CH(CH3)−O−)にピ
ークが認められた。赤外吸収スペクトル及びプロトン核
磁気共鳴スペクトル(1H−NMR)を、それぞれ図1
及び図2に示す。
キシ基で置換された重量平均分子量10,000のポリ
ヒドロキシスチレンと水酸基の39モル%がエトキシエ
トキシ基で置換された重量平均分子量10,000のポ
リヒドロキシスチレンとの重量比3:7の混合物100
重量部、酸発生剤としての上記(1)で得たビス[2‐
(1‐エトキシエチルオキシ)シクロヘキシルスルホニ
ル]ジアゾメタン7重量部、トリエチルアミン0.3重
量部及びサリチル酸0.2重量部をプロピレングリコー
ルモノメチルエーテルアセテート490重量部に溶解し
たのち、このものを孔径0.2μmのメンブランフィル
ターを用いてろ過し、ポジ型レジスト組成物を調製し
た。このポジ型レジスト組成物について、諸特性を評価
した結果、感度は15mJ/cm2、解像性は0.20
μm、レジストパターン形状は○、引き置き経時安定性
は4、残膜率は98%であった。
7‐ジメチルビシクロ[2.2.1]ヘプタニルメチル
スルホニル〕ジアゾメタンの製造 エタノール300gに水酸化カリウム30g(0.53
モル)を溶解し、これにメルカプトイソボルネオール6
0g(0.32モル)を加えたのち、メチレンブロミド
28g(0.16モル)を室温にて30分間かけて滴下
した。この反応混合物をさらに50℃で3時間かき混ぜ
たのち、析出した臭化カリウムをろ去し、次いで、希塩
酸で中和後、メチレンクロリド500gで抽出、溶媒を
留去して、ビス〔2‐ヒドロキシ‐7,7‐ジメチルビ
シクロ[2.2.1]ヘプタニルメチルチオ〕メタン6
7gを黄色油状物として得た。
‐ジメチルビシクロ[2.2.1]ヘプタニルメチルチ
オ〕メタン67g(0.17モル)をエタノール300
gに溶解し、タングステン酸ナトリウム0.6gを加え
たのち、これに、35重量%過酸化水素水200g
(2.06モル)を45℃にて30分間かけて滴下し
た。この反応混合物をさらに50℃で20時間かき混ぜ
たのち、水1000gを加え、析出したビス〔2‐ヒド
ロキシ‐7,7‐ジメチルビシクロ[2.2.1]ヘプ
タニルメチルスルホニル〕メタン51gを白色結晶とし
て得た。
‐ジメチルビシクロ[2.2.1]ヘプタニルメチルス
ルホニル〕メタン20g(0.045モル)とトシルア
ジド10g(0.051モル)をエタノール80gに溶
解し、これに10重量%水酸化カリウム水溶液300g
(0.53モル)を室温で30分間かけて滴下した。こ
の反応混合物をさらに室温で2時間かき混ぜたのち、析
出した結晶をろ取し、ビス〔2‐ヒドロキシ‐7,7‐
ジメチルビシクロ[2.2.1]ヘプタニルメチルスル
ホニル〕ジアゾメタン6.5gを得た。
7‐ジメチルビシクロ[2.2.1]ヘプタニルメチル
スルホニル〕ジアゾメタン5g(0.011モル)とエ
チルビニルエーテル3g(0.042モル)をジオキサ
ン50gに溶かし、p‐トルエンスルホン酸ピリジニウ
ム0.1gを加え、室温にて20時間かき混ぜた。次い
で、これに飽和炭酸カリウム水溶液50gを加え、析出
した結晶をろ取し、得られた最終生成物をアセトニトリ
ルから繰り返し再結晶することにより、目的物であるビ
ス〔2‐[1‐エトキシエチルオキシ]‐7,7‐ジメ
チルビシクロ[2.2.1]ヘプタニルメチルスルホニ
ル〕ジアゾメタン
びプロトン核磁気共鳴スペクトル(1H−NMR)を、
それぞれ図3及び図4に示す。
たビス〔2‐[1‐エトキシエトキシ]‐7,7‐ジメ
チルビシクロ[2.2.1]ヘプタニルメチルスルホニ
ル〕ジアゾメタン7重量部に変えた以外は、実施例1−
(2)と同様にしてポジ型レジスト組成物を調製した。
このポジ型レジスト組成物について、諸特性を評価した
結果、感度は18mJ/cm2、解像性は0.21μ
m、レジストパターン形状は○、引き置き経時安定性は
4、残膜率は98%であった。
載の新規な化合物であって、化学増幅型レジストの酸発
生剤として有用である。すなわち、これを化学増幅型レ
ジストの酸発生剤として用いることにより、露光部と未
露光部のコントラストに優れ、その結果、解像性、パタ
ーン形状、残膜率の向上をもたらすとともに、十分な感
度を示す化学増幅型レジストが得られる。
外吸収スペクトル図。
ロトン核磁気共鳴スペクトル図。
外吸収スペクトル図。
ロトン核磁気共鳴スペクトル図。
Claims (3)
- 【請求項1】 一般式 【化1】 (式中のRはそれぞれ水素原子であるか、又は同一環中
の2個のRでジメチルメチレン基を形成する基であり、
R1及びR2はそれぞれ低級アルキル基であり、nは0又
は1である)で表わされるジアゾメタン化合物。 - 【請求項2】 一般式 【化2】 (式中のR1及びR2はそれぞれ低級アルキル基であり、
nは0又は1である)で表わされる請求項1記載のジア
ゾメタン化合物。 - 【請求項3】 一般式 【化3】 (式中のR1及びR2はそれぞれ低級アルキル基であり、
nは0又は1である)で表わされる請求項1記載のジア
ゾメタン化合物。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19895597A JP3865473B2 (ja) | 1997-07-24 | 1997-07-24 | 新規なジアゾメタン化合物 |
| US09/119,640 US5945517A (en) | 1996-07-24 | 1998-07-21 | Chemical-sensitization photoresist composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19895597A JP3865473B2 (ja) | 1997-07-24 | 1997-07-24 | 新規なジアゾメタン化合物 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH1135552A true JPH1135552A (ja) | 1999-02-09 |
| JPH1135552A5 JPH1135552A5 (ja) | 2004-10-21 |
| JP3865473B2 JP3865473B2 (ja) | 2007-01-10 |
Family
ID=16399727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19895597A Expired - Fee Related JP3865473B2 (ja) | 1996-07-24 | 1997-07-24 | 新規なジアゾメタン化合物 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3865473B2 (ja) |
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