KR102012809B1 - 쌍정결함밀도의 평가방법 - Google Patents
쌍정결함밀도의 평가방법 Download PDFInfo
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- KR102012809B1 KR102012809B1 KR1020190040362A KR20190040362A KR102012809B1 KR 102012809 B1 KR102012809 B1 KR 102012809B1 KR 1020190040362 A KR1020190040362 A KR 1020190040362A KR 20190040362 A KR20190040362 A KR 20190040362A KR 102012809 B1 KR102012809 B1 KR 102012809B1
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- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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Abstract
쌍정결함밀도 = ∑kx'i/시료의 면적,
이때, 2≤k≤3이고, x'i는 i번째 쌍정결함에 의한 에치핏의 장축방향 길이;
를 포함하는 것을 특징으로 하는 쌍정결함밀도 평가 방법에 관한 것이다.
Description
도 2는 실시예에 의한 산화갈륨 박막의 XRC.
도 3은 실시예에 의한 산화갈륨 박막의 X-TEM 이미지.
도 4는 실시예에 의한 산화갈륨 박막의 AFM 이미지.
도 5는 에칭 시간에 따른 산화갈륨 박막의 광학현미경 이미지.
도 6은 총알 모양 에치핏의 근원 분석을 위한 SEM 및 TEM 이미지.
도 7은 바 형태 에치핏의 근원 분석을 위한 SEM 및 TEM 이미지.
도 8은 쌍정결함을 보여주는 평면 TEM 이미지와 모식도.
도 9는 바 형태 에치핏의 근원 분석을 위한 TEM 이미지.
도 10은 쌍정결함 유래의 에치핏을 보여주는 모식도.
Claims (6)
- 단결정 시료 중 쌍정결함밀도를 평가하는 방법에 있어서,
(A) 단결정의 관찰면을 에칭하여 에치핏을 형성하는 단계;
(B) 쌍정결함에 의한 에치핏을 선별하는 단계; 및
(C) 상기 쌍정결함에 의한 에치핏의 장축방향 길이로부터 하기 수식에 의해 쌍정결함밀도를 평가하는 단계,
쌍정결함밀도 = ∑kx'i/시료의 면적
(이때, 2≤k≤3이고, x'i는 i번째 쌍정결함에 의한 에치핏의 장축방향 길이);
를 포함하는 것을 특징으로 하는 쌍정결함밀도 평가 방법.
- 제 1 항에 있어서,
상기 (B) 단계의 쌍정결함에 의한 에치핏은,
바 형태로 에칭시간의 경과에 따라 단축방향 길이인 폭은 증가하나, 장축방향 길이는 변하지 않는 것을 특징으로 하는 쌍정결함밀도 평가 방법.
- 제 1 항 또는 제 2 항에 있어서,
상기 단결정 시료가 기판인 경우에는 k=2이며, 박막인 경우에는 k=3인 것을 특징으로 하는 쌍정결함밀도 평가 방법.
- 제 1 항 또는 제 2 항에 있어서,
상기 단결정 시료는 산화갈륨 단결정 또는 산화갈륨 단결정 박막인 것을 특징으로 하는 쌍정결함밀도 평가 방법.
- 제 4 항에 있어서,
상기 산화갈륨 단결정 박막은 산화갈륨(-201) 단결정 기판 상에 형성된 에피층인 것을 특징으로 하는 쌍정결함밀도 평가 방법.
- 제 5 항에 있어서,
상기 쌍정결함에 의한 에치핏의 장축방향은 [010] 방향인 것을 특징으로 하는 쌍정결함밀도 평가 방법.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190040362A KR102012809B1 (ko) | 2019-04-05 | 2019-04-05 | 쌍정결함밀도의 평가방법 |
| PCT/KR2020/003338 WO2020204381A1 (ko) | 2019-04-05 | 2020-03-11 | 쌍정결함밀도의 평가방법 |
| US17/256,885 US11733177B2 (en) | 2019-04-05 | 2020-03-11 | Method for estimating twin defect density |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190040362A KR102012809B1 (ko) | 2019-04-05 | 2019-04-05 | 쌍정결함밀도의 평가방법 |
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| Publication Number | Publication Date |
|---|---|
| KR102012809B1 true KR102012809B1 (ko) | 2019-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020190040362A Active KR102012809B1 (ko) | 2019-04-05 | 2019-04-05 | 쌍정결함밀도의 평가방법 |
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| Country | Link |
|---|---|
| US (1) | US11733177B2 (ko) |
| KR (1) | KR102012809B1 (ko) |
| WO (1) | WO2020204381A1 (ko) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020204381A1 (ko) * | 2019-04-05 | 2020-10-08 | 충남대학교 산학협력단 | 쌍정결함밀도의 평가방법 |
| KR102255421B1 (ko) | 2020-08-11 | 2021-05-24 | 충남대학교산학협력단 | 단결정 산화갈륨의 결함 평가방법 |
| KR20230095885A (ko) * | 2021-12-22 | 2023-06-29 | 주식회사루미지엔테크 | HVPE법에 따른 Ga2O3 결정막 증착방법, 증착장치 및 이를 사용한 Ga2O3 결정막 증착 기판 |
| KR20240051496A (ko) | 2022-10-13 | 2024-04-22 | 한국전기연구원 | 비파괴분석법을 이용한 와이드밴드갭 소재의 결함 평가방법 |
| CN119221125A (zh) * | 2024-10-09 | 2024-12-31 | 青岛华芯晶电科技有限公司 | 氧化镓晶体微观缺陷及掺杂调控系统及方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112836853A (zh) * | 2020-12-31 | 2021-05-25 | 杭州富加镓业科技有限公司 | 一种基于深度学习和热交换法的氧化镓制备方法及系统 |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102012809B1 (ko) | 2019-04-05 | 2019-08-21 | 충남대학교산학협력단 | 쌍정결함밀도의 평가방법 |
-
2019
- 2019-04-05 KR KR1020190040362A patent/KR102012809B1/ko active Active
-
2020
- 2020-03-11 WO PCT/KR2020/003338 patent/WO2020204381A1/ko not_active Ceased
- 2020-03-11 US US17/256,885 patent/US11733177B2/en active Active
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| JP4758492B2 (ja) | 2009-03-24 | 2011-08-31 | トヨタ自動車株式会社 | 単結晶の欠陥密度測定方法 |
| JP2011027427A (ja) * | 2009-07-21 | 2011-02-10 | Toyota Motor Corp | 単結晶の欠陥密度測定方法および装置 |
| JP2011124354A (ja) * | 2009-12-10 | 2011-06-23 | Sumco Corp | Soiウェーハの検査方法 |
| JP2012193069A (ja) * | 2011-03-16 | 2012-10-11 | Stanley Electric Co Ltd | ZnO系化合物半導体結晶の表面欠陥の検出方法 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020204381A1 (ko) * | 2019-04-05 | 2020-10-08 | 충남대학교 산학협력단 | 쌍정결함밀도의 평가방법 |
| US11733177B2 (en) | 2019-04-05 | 2023-08-22 | The Industry & Academic Cooperation In Chungnam National University (Iac) | Method for estimating twin defect density |
| KR102255421B1 (ko) | 2020-08-11 | 2021-05-24 | 충남대학교산학협력단 | 단결정 산화갈륨의 결함 평가방법 |
| KR20230095885A (ko) * | 2021-12-22 | 2023-06-29 | 주식회사루미지엔테크 | HVPE법에 따른 Ga2O3 결정막 증착방법, 증착장치 및 이를 사용한 Ga2O3 결정막 증착 기판 |
| KR102712316B1 (ko) * | 2021-12-22 | 2024-10-02 | 주식회사루미지엔테크 | HVPE법에 따른 Ga2O3 결정막 증착방법, 증착장치 및 이를 사용한 Ga2O3 결정막 증착 기판 |
| KR20240051496A (ko) | 2022-10-13 | 2024-04-22 | 한국전기연구원 | 비파괴분석법을 이용한 와이드밴드갭 소재의 결함 평가방법 |
| CN119221125A (zh) * | 2024-10-09 | 2024-12-31 | 青岛华芯晶电科技有限公司 | 氧化镓晶体微观缺陷及掺杂调控系统及方法 |
| CN119221125B (zh) * | 2024-10-09 | 2025-06-17 | 青岛华芯晶电科技有限公司 | 氧化镓晶体微观缺陷及掺杂调控系统及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20210270753A1 (en) | 2021-09-02 |
| US11733177B2 (en) | 2023-08-22 |
| WO2020204381A1 (ko) | 2020-10-08 |
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