KR20140074404A - 트랜지스터 - Google Patents
트랜지스터 Download PDFInfo
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- KR20140074404A KR20140074404A KR1020147014982A KR20147014982A KR20140074404A KR 20140074404 A KR20140074404 A KR 20140074404A KR 1020147014982 A KR1020147014982 A KR 1020147014982A KR 20147014982 A KR20147014982 A KR 20147014982A KR 20140074404 A KR20140074404 A KR 20140074404A
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- Prior art keywords
- film
- oxide semiconductor
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- metal
- semiconductor film
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
- H10D30/6755—Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6704—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device
- H10D30/6713—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device characterised by the properties of the source or drain regions, e.g. compositions or sectional shapes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/673—Thin-film transistors [TFT] characterised by the electrodes characterised by the shapes, relative sizes or dispositions of the gate electrodes
- H10D30/6732—Bottom-gate only TFTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/05—Arrangements for energy or mass analysis
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- Thin Film Transistor (AREA)
- Liquid Crystal (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
도 1a 및 도 1b는 산화물 반도체를 포함하는 박막 트랜지스터의 단면 개략도를 도시한다;
도 2는 산화물 반도체를 포함하는 박막 트랜지스터의 소스 전극과 드레인 전극 사이의 에너지 밴드도를 도시한다;
도 3a 내지 도 3c는 In-Ga-Zn-O계 산화물 반도체의 금속과 산소의 결정 구조를 도시한다;
도 4a 및 도 4b는 각각이 구조 모델을 나타내는 도면을 도시한다;
도 5a 및 도 5b는 각각이 구조 모델을 나타내는 도면을 도시한다;
도 6a 및 도 6b는 각각이 구조 모델을 나타내는 도면을 도시한다;
도 7a는 샘플 1의 C-V 특성을 나타내는 그래프를 도시하고, 도 7b는 샘플 1의 (Vg)와 (1/C)2 사이의 관계를 나타내는 그래프를 도시한다;
도 8a는 샘플 2의 C-V 특성을 나타내는 그래프를 도시하고, 도 8b는 샘플 2의 (Vg)와 (1/C)2 사이의 관계를 나타내는 그래프를 도시한다;
도 9는 루틸 구조(rutile structure)를 갖는 이산화 티타늄의 결정 구조를 도시한다;
도 10은 루틸 구조를 갖는 이산화 티타늄의 상태 밀도를 도시한다;
도 11은 산소 결핍 상태의 루틸 구조를 갖는 이산화 티타늄의 상태 밀도를 도시한다;
도 12는 일산화 티타늄의 상태 밀도를 도시한다;
도 13a 및 도 13b 각각은 박막 트랜지스터를 적용한 전자 장치를 나타낸다;
도 14는 In-Ga-Zn-O계 산화물 반도체를 포함하는 박막 트랜지스터의 TEM 사진이다.
Claims (8)
- 트랜지스터로서,
게이트 전극;
상기 게이트 전극과 중첩하는 게이트 절연막;
상기 게이트 절연막을 개재하여 상기 게이트 전극과 중첩하는 산화물 반도체막; 및
상기 산화물 반도체막과 중첩하는 티타늄막을 포함하고,
상기 산화물 반도체막은 인듐, 갈륨 및 아연 중 적어도 하나를 포함하고,
상기 산화물 반도체막은 제1 영역 및 제2 영역을 포함하고,
상기 제1 영역 및 상기 제2 영역은 상기 티타늄막과 중첩하고,
상기 제1 영역은 상기 제2 영역보다 상기 티타늄막에 근접하고,
상기 제1 영역은 상기 티타늄막의 부근에 있고,
상기 제1 영역에 있어서의 인듐의 농도는 상기 제2 영역에 있어서의 인듐의 농도보다 높은, 트랜지스터. - 트랜지스터로서,
게이트 전극;
상기 게이트 전극과 중첩하는 게이트 절연막;
상기 게이트 절연막을 개재하여 상기 게이트 전극과 중첩하는 산화물 반도체막;
상기 산화물 반도체막과 접하고, 티타늄 및 산소를 포함하는 막; 및
상기 막과 접하는 티타늄막을 포함하고,
상기 산화물 반도체막은 인듐, 갈륨 및 아연 중 적어도 하나를 포함하고,
상기 산화물 반도체막은 제1 영역 및 제2 영역을 포함하고,
상기 제1 영역 및 상기 제2 영역은 상기 막과 중첩하고,
상기 제1 영역은 상기 제2 영역보다 상기 막에 근접하고,
상기 제1 영역은 상기 막의 부근에 있고,
상기 제1 영역에 있어서의 인듐의 농도는 상기 제2 영역에 있어서의 인듐의 농도보다 높은, 트랜지스터. - 트랜지스터로서,
게이트 전극;
상기 게이트 전극과 중첩하는 게이트 절연막;
상기 게이트 절연막을 개재하여 상기 게이트 전극과 중첩하는 산화물 반도체막;
상기 산화물 반도체막과 접하고, 티타늄 및 산소를 포함하는 막; 및
상기 막과 접하는 티타늄막을 포함하고,
상기 산화물 반도체막은 인듐, 갈륨 및 아연 중 적어도 하나를 포함하고,
상기 산화물 반도체막은 제1 영역 및 제2 영역을 포함하고,
상기 제1 영역 및 상기 제2 영역은 상기 막과 중첩하고,
상기 제1 영역은 상기 제2 영역보다 상기 막에 근접하고,
상기 제1 영역은 상기 막의 부근에 있고,
상기 제1 영역에 있어서의 인듐, 갈륨 및 아연 중 어느 하나의 농도는 상기 제2 영역에 있어서의 그것의 농도보다 높고,
상기 제1 영역은 인듐, 갈륨 및 아연 중 어느 하나를 포함하는 결정립 또는 미결정을 포함하는, 트랜지스터. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 트랜지스터의 타입은 보텀 게이트 타입(bottom gate type)인, 트랜지스터. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 산화물 반도체막은 In-Ga-Zn-O계 산화물 반도체를 포함하는, 트랜지스터. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 산화물 반도체막에서의 수소의 농도는 5×1016/cm3 미만인, 트랜지스터. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 산화물 반도체막의 캐리어 밀도는 5×1010/cm3 이하인, 트랜지스터. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 제1 영역은 인듐의 결정을 포함하는, 트랜지스터.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2009-265409 | 2009-11-20 | ||
| JP2009265409 | 2009-11-20 | ||
| PCT/JP2010/069391 WO2011062048A1 (en) | 2009-11-20 | 2010-10-26 | Thin film transistor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020127013018A Division KR20120107079A (ko) | 2009-11-20 | 2010-10-26 | 박막 트랜지스터 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020167005690A Division KR102026212B1 (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20140074404A true KR20140074404A (ko) | 2014-06-17 |
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Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020207030816A Ceased KR20200124769A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020147014982A Ceased KR20140074404A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020197027376A Ceased KR20190109597A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020167005690A Active KR102026212B1 (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020127013018A Ceased KR20120107079A (ko) | 2009-11-20 | 2010-10-26 | 박막 트랜지스터 |
| KR1020227009107A Ceased KR20220041239A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020177027697A Expired - Fee Related KR101945660B1 (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020207030816A Ceased KR20200124769A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020197027376A Ceased KR20190109597A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020167005690A Active KR102026212B1 (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020127013018A Ceased KR20120107079A (ko) | 2009-11-20 | 2010-10-26 | 박막 트랜지스터 |
| KR1020227009107A Ceased KR20220041239A (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
| KR1020177027697A Expired - Fee Related KR101945660B1 (ko) | 2009-11-20 | 2010-10-26 | 트랜지스터 |
Country Status (5)
| Country | Link |
|---|---|
| US (3) | US8766250B2 (ko) |
| JP (1) | JP5608520B2 (ko) |
| KR (7) | KR20200124769A (ko) |
| TW (3) | TWI529950B (ko) |
| WO (1) | WO2011062048A1 (ko) |
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| US9748402B2 (en) | 2015-02-04 | 2017-08-29 | Samsung Display Co., Ltd. | Semiconductor element and organic light emitting display device having a semiconductor element |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160031047A (ko) | 2016-03-21 |
| KR102026212B1 (ko) | 2019-09-27 |
| TWI491046B (zh) | 2015-07-01 |
| US8766250B2 (en) | 2014-07-01 |
| TWI580039B (zh) | 2017-04-21 |
| JP5608520B2 (ja) | 2014-10-15 |
| US20140284601A1 (en) | 2014-09-25 |
| TW201631762A (zh) | 2016-09-01 |
| TW201130139A (en) | 2011-09-01 |
| KR20200124769A (ko) | 2020-11-03 |
| JP2011129897A (ja) | 2011-06-30 |
| WO2011062048A1 (en) | 2011-05-26 |
| TW201530781A (zh) | 2015-08-01 |
| KR20190109597A (ko) | 2019-09-25 |
| KR20170117208A (ko) | 2017-10-20 |
| KR101945660B1 (ko) | 2019-02-07 |
| KR20120107079A (ko) | 2012-09-28 |
| KR20220041239A (ko) | 2022-03-31 |
| US20150162450A1 (en) | 2015-06-11 |
| US8963149B2 (en) | 2015-02-24 |
| US20110121289A1 (en) | 2011-05-26 |
| TWI529950B (zh) | 2016-04-11 |
| US9306075B2 (en) | 2016-04-05 |
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