JP2006319342A - 金属−絶縁体転移物質を利用したトランジスタ及びその製造方法 - Google Patents
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- 229910021332 silicide Inorganic materials 0.000 claims description 8
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 6
- 150000004770 chalcogenides Chemical class 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
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- 238000012546 transfer Methods 0.000 claims description 6
- 229910052723 transition metal Inorganic materials 0.000 claims description 6
- 150000003624 transition metals Chemical class 0.000 claims description 6
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- 238000005530 etching Methods 0.000 claims description 5
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- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
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- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
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- 239000012535 impurity Substances 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 229910021339 platinum silicide Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- H01L29/76—Unipolar devices, e.g. field effect transistors
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Abstract
【解決手段】基板と、基板上に形成された絶縁層と、絶縁層上に離隔されて形成されたソース及びドレインと、ソース及びドレインの表面にそれぞれ形成されたトンネリング障壁層と、トンネリング障壁層及び絶縁層上に形成された金属−絶縁体転移物質層と、金属−絶縁体転移物質層上に積層された誘電体層と、誘電体層上に形成されたゲート電極層と、を備える金属−絶縁体転移物質を利用したトランジスタである。
【選択図】図1
Description
31 絶縁層
32 伝導性物質
32a ソース
32b ドレイン
33 トンネリング酸化層
34 金属−絶縁体転移物質
35 誘電体層
36 ゲート電極層
Claims (16)
- 基板と、
前記基板上に形成された絶縁層と、
前記絶縁層上に離隔されて形成されたソース及びドレインと、
前記ソース及びドレインの表面にそれぞれ形成されたトンネリング障壁層と、
前記トンネリング障壁層及び前記絶縁層上に形成された金属−絶縁体転移物質層と、
前記金属−絶縁体転移物質層上に積層された誘電体層と、
前記誘電体層上に形成されたゲート電極層と、を備えることを特徴とする金属−絶縁体転移物質を利用したトランジスタ。 - 前記金属−絶縁体転移物質層は、前記ソース及び前記ドレイン間の電位差により、物性が金属から絶縁体あるいはその反対に変わる物質から形成されたことを特徴とする請求項1に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記金属−絶縁体転移物質層は、カルコゲナイド物質膜、遷移金属酸化膜、複数の遷移金属酸化物を含む合成物質膜、アルミニウム酸化膜及び複数のアルミニウム酸化物を含む合成物質膜からなる群のうち選択されたいずれか一つであることを特徴とする請求項1に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記遷移金属酸化膜をなす遷移金属は、Ti、V、Fe、Ni、Nb及びTaからなる群のうち選択されたいずれか一つであることを特徴とする請求項3に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記誘電体層は、Al2O3膜、HfO2膜及びZrO2膜のうち、いずれか一つであることを特徴とする請求項1に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記ソース及び前記ドレインは、前記金属−絶縁体転移物質層とショットキー接合をなすことができる金属膜及びシリサイド膜のうち、いずれか一つであることを特徴とする請求項1に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記金属膜は、Al膜、Ti膜及びAu膜のうち、いずれか一つであることを特徴とする請求項6に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記シリサイド膜は、PtSi膜またはNiSi2膜であることを特徴とする請求項6に記載の金属−絶縁体転移物質を利用したトランジスタ。
- 前記トンネリング障壁層は、酸化層または窒化層であることを特徴とする請求項1に記載の金属−絶縁体転移物質を利用したトランジスタ。
- (イ)基板上に絶縁層を形成するステップと、
(ロ)前記絶縁層上に離隔されたソース及びドレインを形成するステップと、
(ハ)前記ソース及びドレインの表面にトンネリング障壁層を形成するステップと、
(ニ)前記トンネリング障壁層及び前記絶縁層上に金属−絶縁体転移物質層、誘電体層及びゲート電極層を順次に積層するステップと、を含むことを特徴とする金属−絶縁体転移物質を利用したトランジスタの製造方法。 - 前記ゲート電極層、前記誘電体層及び前記金属−絶縁体転移物質層の一部を順次にエッチングし、前記ソース及びドレインの一部を露出させるステップをさらに含むことを特徴とする請求項10に記載の金属−絶縁体転移物質を利用したトランジスタの製造方法。
- 前記ステップ(ロ)は、
前記絶縁層の前記ソース及びドレインが形成される領域を露出させるマスクを形成するステップと、
前記絶縁層の露出された領域上に伝導性物質層を形成するステップと、
前記マスクを除去するステップと、を含むことを特徴とする請求項10に記載の金属−絶縁体転移物質を利用したトランジスタのその製造方法。 - 前記金属−絶縁体転移物質層は、カルコゲナイド物質膜、遷移金属酸化膜、複数の遷移金属酸化物を含む合成物質膜、アルミニウム酸化膜及び複数のアルミニウム酸化物を含む合成物質膜からなる群のうち選択されたいずれか一つから形成することを特徴とする請求項10に記載の金属−絶縁体転移物質を利用したトランジスタの製造方法。
- 前記遷移金属酸化膜をなす遷移金属は、Ti、V、Fe、Ni、Nb及びTaからなる群のうち選択されたいずれか一つから形成することを特徴とする請求項13に記載の金属−絶縁体転移物質を利用したトランジスタ製造方法。
- 前記トンネリング障壁層は、前記ソース及びドレインの表面を酸化または窒化させた酸化層または窒化層であることを特徴とする請求項10に記載の金属−絶縁体転移物質を利用したトランジスタの製造方法。
- 前記トンネリング障壁層は、前記絶縁層とソース及びドレイン上に絶縁物質を塗布して形成することを特徴とする請求項10に記載の金属−絶縁体転移物質を利用したトランジスタの製造方法。
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KR1020050039726A KR100695150B1 (ko) | 2005-05-12 | 2005-05-12 | 금속-절연체 변환 물질을 이용한 트랜지스터 및 그 제조방법 |
KR10-2005-0039726 | 2005-05-12 |
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Also Published As
Publication number | Publication date |
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CN1862831B (zh) | 2012-04-18 |
JP5235281B2 (ja) | 2013-07-10 |
KR20060117023A (ko) | 2006-11-16 |
US20060255392A1 (en) | 2006-11-16 |
KR100695150B1 (ko) | 2007-03-14 |
CN1862831A (zh) | 2006-11-15 |
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