KR102839600B1 - 강유전체 트랜지스터 및 그 제조 방법 - Google Patents
강유전체 트랜지스터 및 그 제조 방법Info
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- KR102839600B1 KR102839600B1 KR1020230111994A KR20230111994A KR102839600B1 KR 102839600 B1 KR102839600 B1 KR 102839600B1 KR 1020230111994 A KR1020230111994 A KR 1020230111994A KR 20230111994 A KR20230111994 A KR 20230111994A KR 102839600 B1 KR102839600 B1 KR 102839600B1
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- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
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- H10B—ELECTRONIC MEMORY DEVICES
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- H10D30/0415—Manufacture or treatment of FETs having insulated gates [IGFET] of FETs having ferroelectric gate insulators
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- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/6737—Thin-film transistors [TFT] characterised by the electrodes characterised by the electrode materials
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- 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
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- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/689—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having ferroelectric layers
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- Thin Film Transistor (AREA)
Abstract
Description
도 2는 비교예에 따른 유리 기판과 본 발명의 실시예들에 따른 강유전체 트랜지스터의 광 투과도를 보여주는 그래프이다.
도 3a는 본 발명의 실시예들에 따른 강유전체 트랜지스터의 트랜스퍼(transfer) 특성을 보여주는 그래프이고, 도 3b는 프로그램 및 소거 상태에서 게이트 전압에 따른 드레인 전류 특성을 보여주는 그래프이다.
도 4a는 본 발명의 실시예들에 따른 강유전체 트랜지스터의 펄스폭에 따른 프로그램 및 소거 특성을 보여주는 그래프이고, 도 4b는 사이클에 따른 내구성 특성을 보여주는 그래프이다.
도 5 내지 도 8은 본 발명의 일 실시예에 따른 강유전체 트랜지스터의 제조 방법을 보여주는 단면도들이다.
110: 투명 기판
120: 게이트 전극층
130: 강유전체층
140a: 드레인 전극층
140b: 소오스 전극층
150: 반도체 채널층
Claims (16)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 투명 기판 상에 게이트 전극층을 형성하는 단계;
상기 게이트 전극층 상에 하프늄계 산화물을 포함하는 강유전체층을 형성하는 단계;
상기 게이트 전극층의 양측의 상기 강유전체층 상에 드레인 전극층 및 소오스 전극층을 각각 형성하는 단계; 및
상기 드레인 전극층 및 상기 소오스 전극층에 연결되도록 상기 강유전체층 상에 산화물 반도체를 포함하는 반도체 채널층을 형성하는 단계를 포함하고,
상기 강유전체층의 분극 특성을 유도하기 위하여 300 oC 초과 및 450 oC 미만의 온도에서 열처리하는 단계를 더 포함하고,
상기 열처리하는 단계는 상기 반도체 채널층 상에 별도의 패시베이션층을 형성하지 않고 상기 반도체 채널층이 노출된 상태에서 상기 강유전체층 및 상기 반도체 채널층이 계면 접촉된 상태에서 수행하는,
강유전체 트랜지스터의 제조 방법. - 제 11 항에 있어서,
상기 강유전체층을 형성하는 단계는, 원자층증착법을 이용하여 상기 게이트 전극층 상에 하프늄계 산화물층을 형성하는 단계를 포함하는,
강유전체 트랜지스터의 제조 방법. - 제 12 항에 있어서,
상기 강유전체층은 지르코늄(Zr), 알루미늄(Al), 실리콘(Si), 이트륨(Y), 가돌리늄(Gd) 및 란타늄(La) 중 적어도 하나가 첨가된 하프늄 산화물을 포함하는,
강유전체 트랜지스터의 제조 방법. - 삭제
- 제 11 항에 있어서,
상기 투명 기판은 유리 기판을 포함하고,
상기 게이트 전극층, 상기 드레인 전극층 및 상기 소오스 전극층은 투명 도전성 산화물을 포함하는,
강유전체 트랜지스터의 제조 방법. - 제 15 항에 있어서,
상기 강유전체 트랜지스터는 가시광선 영역에서 65% 이상의 투과도를 보이는, 강유전체 트랜지스터의 제조 방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020230111994A KR102839600B1 (ko) | 2023-08-25 | 2023-08-25 | 강유전체 트랜지스터 및 그 제조 방법 |
| KR1020250099806A KR20250117344A (ko) | 2023-08-25 | 2025-07-23 | 강유전체 트랜지스터 및 그 제조 방법 |
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| KR1020230111994A KR102839600B1 (ko) | 2023-08-25 | 2023-08-25 | 강유전체 트랜지스터 및 그 제조 방법 |
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| KR1020250099806A Division KR20250117344A (ko) | 2023-08-25 | 2025-07-23 | 강유전체 트랜지스터 및 그 제조 방법 |
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| KR20250030699A KR20250030699A (ko) | 2025-03-05 |
| KR102839600B1 true KR102839600B1 (ko) | 2025-07-30 |
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| KR1020230111994A Active KR102839600B1 (ko) | 2023-08-25 | 2023-08-25 | 강유전체 트랜지스터 및 그 제조 방법 |
| KR1020250099806A Pending KR20250117344A (ko) | 2023-08-25 | 2025-07-23 | 강유전체 트랜지스터 및 그 제조 방법 |
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| KR1020250099806A Pending KR20250117344A (ko) | 2023-08-25 | 2025-07-23 | 강유전체 트랜지스터 및 그 제조 방법 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130043063A (ko) * | 2011-10-19 | 2013-04-29 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 및 반도체 장치의 제작 방법 |
| TWI621183B (zh) * | 2011-12-01 | 2018-04-11 | 半導體能源研究所股份有限公司 | 半導體裝置及半導體裝置的製造方法 |
| TWI782259B (zh) * | 2012-10-24 | 2022-11-01 | 日商半導體能源研究所股份有限公司 | 半導體裝置及其製造方法 |
| EP3503199A1 (en) * | 2017-12-22 | 2019-06-26 | IMEC vzw | A method for forming a ferroelectric field-effect transistor |
| KR102782983B1 (ko) * | 2021-05-24 | 2025-03-18 | 에이디알씨 주식회사 | 박막 트랜지스터 및 그 제조 방법과 전자 장치 |
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2023
- 2023-08-25 KR KR1020230111994A patent/KR102839600B1/ko active Active
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| KR20250030699A (ko) | 2025-03-05 |
| KR20250117344A (ko) | 2025-08-04 |
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Free format text: ST27 STATUS EVENT CODE: A-4-4-Q10-Q13-NAP-PG1601 (AS PROVIDED BY THE NATIONAL OFFICE) |
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| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |