JP4401826B2 - 電界効果型トランジスタおよびその製造方法 - Google Patents
電界効果型トランジスタおよびその製造方法 Download PDFInfo
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- JP4401826B2 JP4401826B2 JP2004067440A JP2004067440A JP4401826B2 JP 4401826 B2 JP4401826 B2 JP 4401826B2 JP 2004067440 A JP2004067440 A JP 2004067440A JP 2004067440 A JP2004067440 A JP 2004067440A JP 4401826 B2 JP4401826 B2 JP 4401826B2
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- Prior art keywords
- semiconductor layer
- field effect
- organic semiconductor
- effect transistor
- compound
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- 125000002080 perylenyl group Chemical class C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
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- 150000000000 tetracarboxylic acids Chemical class 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 description 1
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- 239000005052 trichlorosilane Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains four or more hetero rings
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/466—Lateral bottom-gate IGFETs comprising only a single gate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/468—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics
- H10K10/472—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics the gate dielectric comprising only inorganic materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
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- Thin Film Transistor (AREA)
Description
前記有機半導体層が、
前記ポルフィリン化合物の前駆体である下記構造式で示されるテトラビシクロ体の、無金属体が加熱されたことで得られたものであり、
前記有機半導体層はメチルシルセスキオキサンの界面層と接しており、前記界面層は前記絶縁層と前記有機半導体層との間に配置されていることを特徴とする電界効果型トランジスタである。
一般式(1)
一般式(2)
使用機:理学電機社製RAD−RX広角X線回折装置
X線管球:Cu
管電圧:50KV
管電流:150mA
スキャン方法:2θ/θスキャン
スキャン速度:2deg./min.
サンプリング間隔:0.02deg.
積算時間:1s
積算回数:14回
測定温度:室温(20℃)
なお、θ=0°は基板平面に設定した。
工程1−1
1,3−シクロヘキサジエン3.16g(39.5mmol)、トランス−1,2−ビス(フェニルスルフォニル)エチレン10.5g(34.1mmol)トルエン200mlの混合液を7時間還流させた後、冷却、減圧下濃縮することにより反応混合物を得ることができる。この反応粗生成物を再結晶(クロロホルム/ヘキサン)することにより5,6−ビス(フェニルスルフォニル)−ビシクロ[2.2.2]オクタ−2−エン(13.8g、35.6mmol、収量90%)が得られる。
得られた5,6−ビス(フェニルスルフォニル)−ビシクロ[2.2.2]オクタ−2−エン7.76g(20mmol)、無水テトラヒドロフラン50mlの混合液の反応系を窒素置換し、イソシアノ酢酸エチル2.425ml(22mmol)を加え0℃に冷却する。カリウムt−ブトキシド(50ml/1MTHF溶液)を2時間かけて滴下した後、室温で3時間攪拌した。反応終了後、希塩酸を加えてから反応混合物を飽和炭酸水素ナトリウム水溶液、蒸留水、飽和食塩水の順で洗浄し無水硫酸ナトリウムで乾燥した。シリカゲルカラムクロマトグラフィー(クロロホルム)で精製し、エチル−4,7−ジヒドロ−4,7−エタノ−2H−イソインドール−1−カルボキシレートを得た(3.5g、16mmol、収率80%)。
アルゴン雰囲気下、得られたエチル−4,7−ジヒドロ−4,7−エタノ−2H−イソインドール−1−カルボキシレート0.42g(1.92mmol)、無水THF50mlの混合溶液を0℃まで冷却し、水素化リチウムアルミニウム粉0.228g(6mmol)を加え、2時間攪拌した。その後、THFを除去し、クロロホルムで抽出し、飽和炭酸水素ナトリウム水溶液、蒸留水、飽和食塩水の順で洗浄し無水硫酸ナトリウムで乾燥した。この反応溶液を濾過、アルゴン置換、遮光し、p−トルエンスルホン酸10mgを加え12時間室温で攪拌した。さらにp−クロラニル0.11gを加え12時間室温で攪拌した。飽和炭酸水素ナトリウム水溶液、蒸留水、飽和食塩水の順で洗浄し無水硫酸ナトリウムで乾燥した。溶液を濃縮後、アルミナカラムクロマトグラフィー(クロロホルム)と再結晶(クロロホルム/メタノール)により下記の式(3)で表わされる無金属テトラビシクロ体を得た(0.060g、0.097mmol、収率20%)。
一般式(3)
得られた無金属テトラビシクロ体0.02g(0.032mmol)と酢酸銅(II)一水和物0.019g(0.1mmol)のクロロホルム30ml溶液を室温で3時間攪拌した。反応溶液を蒸留水と飽和食塩水とで洗浄後、無水硫酸ナトリウムで乾燥した。溶液を濃縮後、クロロホルム/メタノールで再結晶し、テトラビシクロ銅錯体を得た(0.022g,収率100%)。
エタノール49.5g、1−ブタノール49.5gよりなる混合溶媒に市販のフレーク状のメチルシルセスキオキサン(MSQ)(昭和電工製、商品名GR650)1.0gを溶解させることで、1重量%濃度の溶液を調製した。この液を樹脂溶液aとする。
図1に本実施例における電界効果型トランジスタの構造を示す。実施例1は参考例である。
Id=μ(CiW/2L)(Vg−Vth)2 (式1)
ここで、Ciはゲート絶縁膜の単位面積あたりの静電容量(F/cm2)、W、Lはそれぞれ実施例で示したチャネル幅(mm)、チャネル長(μm)である。またId、Vg、Vthはそれぞれドレイン電流(A)、ゲート電圧(V)、しきい値電圧(V)である。また、Vd=−80VにおけるVg=−80Vと0VのIdの比をON/OFF比とした。
図2に本実施例における電界効果型トランジスタの構造を示す。まず、ハイドープN型のシリコン基板をゲート電極1とした。シリコン基板表層を熱酸化して得られる5000Åの酸化シリコン膜を絶縁層2とした。次に絶縁層の表面に樹脂溶液aをスピンコート法(回転数5000rpm)で塗布した。次にこの塗膜をホットプレート上に移して100℃で5分、200℃で20分加熱した。触針式段差計での測定によると膜厚は50nmであった。これを界面層3とした。この基板上に合成例1で合成した無金属テトラビシクロ体の1重量%クロロホルム溶液からスピンコート法により塗膜を形成した(回転数1000rpm)。さらに基板を200℃で加熱して有機半導体層4を形成した。その後、前述の条件でマスクを用いて金ソース電極5、金ドレイン電極6を作製した。
図3に本実施例における電界効果型トランジスタの構造を示す。まず、ハイドープN型のシリコン基板をゲート電極1とした。シリコン基板表層を熱酸化して得られる5000Åの酸化シリコン膜を絶縁層2とした。次に絶縁層の表面に樹脂溶液aをスピンコート法(回転数5000rpm)で塗布した。次にこの塗膜をホットプレート上に移して100℃で5分、200℃で20分加熱した。触針式段差計での測定によると膜厚は50nmであった。これを界面層3とした。前述の条件で、マスクを用いて金ソース電極5、ドレイン電極6を作製した。この基板上に合成例1で合成した無金属テトラビシクロ体の1重量%クロロホルム溶液からスピンコート法により塗膜を形成した(回転数1000rpm)。さらに基板を220℃で加熱して有機半導体層4を形成した。
図4に本比較例における電界効果型トランジスタの構造を示す。
2 絶縁層
3 界面層
4 有機半導体層
5 ソース電極
6 ドレイン電極
Claims (2)
- ソース電極とドレイン電極とゲート電極と絶縁層と有機半導体層を有する電界効果型トランジスタであって、該有機半導体層が少なくともポルフィリン化合物を含み、該有機半導体層においてCuKαX線回折ブラッグ角(2θ)9.9°以上10.4°以下の範囲における最大回折強度I1が23.0°以上26.0°以下の範囲における最大回折強度I2よりも強く、
前記有機半導体層が、
前記ポルフィリン化合物の前駆体である下記構造式で示されるテトラビシクロ体の、無金属体が加熱されたことで得られたものであり、
前記有機半導体層はメチルシルセスキオキサンの界面層と接しており、前記界面層は前記絶縁層と前記有機半導体層との間に配置されていることを特徴とする電界効果型トランジスタ。
- 前記最大回折強度I1とI2の比I1/I2が2以上であることを特徴とする請求項1記載の電界効果型トランジスタ。
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US10/571,688 US7960716B2 (en) | 2004-03-10 | 2005-03-08 | Field effect transistor and method of producing the same |
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US7491967B2 (en) * | 2004-03-10 | 2009-02-17 | Canon Kabushiki Kaisha | Field effect transistor, method of producing the same, and method of producing laminated member |
JP4401836B2 (ja) * | 2004-03-24 | 2010-01-20 | キヤノン株式会社 | 電界効果型トランジスタおよびその製造方法 |
JP2005322895A (ja) * | 2004-04-09 | 2005-11-17 | Mitsubishi Chemicals Corp | 有機電子デバイスの製造方法及び有機電子デバイス |
US7511296B2 (en) | 2005-03-25 | 2009-03-31 | Canon Kabushiki Kaisha | Organic semiconductor device, field-effect transistor, and their manufacturing methods |
JP4696700B2 (ja) * | 2005-06-06 | 2011-06-08 | 三菱化学株式会社 | 有機半導体薄膜の製造方法、有機電子デバイスの製造方法及び有機電界効果トランジスタの製造方法 |
JP5335228B2 (ja) | 2006-12-27 | 2013-11-06 | キヤノン株式会社 | 新規化合物および有機半導体素子の製造方法 |
WO2008117450A1 (ja) * | 2007-03-27 | 2008-10-02 | Pioneer Corporation | 有機トランジスタの製造方法及び有機トランジスタ |
KR20110138343A (ko) * | 2009-04-10 | 2011-12-27 | 미쓰비시 가가꾸 가부시키가이샤 | 전계 효과 트랜지스터, 그 제조 방법 및 그것을 사용한 전자 디바이스 |
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JP2003234473A (ja) | 2002-02-06 | 2003-08-22 | Canon Inc | 有機半導体素子の製造方法 |
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US7193237B2 (en) * | 2002-03-27 | 2007-03-20 | Mitsubishi Chemical Corporation | Organic semiconductor material and organic electronic device |
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US7094625B2 (en) | 2003-03-31 | 2006-08-22 | Canon Kabushiki Kaisha | Field effect transistor and method of producing the same |
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JP2005079204A (ja) | 2003-08-28 | 2005-03-24 | Canon Inc | 電界効果型トランジスタおよびその製造方法 |
US7491967B2 (en) | 2004-03-10 | 2009-02-17 | Canon Kabushiki Kaisha | Field effect transistor, method of producing the same, and method of producing laminated member |
JP4557755B2 (ja) | 2004-03-11 | 2010-10-06 | キヤノン株式会社 | 基板、導電性基板および有機電界効果型トランジスタの各々の製造方法 |
US7511296B2 (en) | 2005-03-25 | 2009-03-31 | Canon Kabushiki Kaisha | Organic semiconductor device, field-effect transistor, and their manufacturing methods |
US7695999B2 (en) | 2005-09-06 | 2010-04-13 | Canon Kabushiki Kaisha | Production method of semiconductor device |
US7435989B2 (en) | 2005-09-06 | 2008-10-14 | Canon Kabushiki Kaisha | Semiconductor device with layer containing polysiloxane compound |
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