KR101608570B1 - 발광 장치에 사용하기 위한 p-형 도핑 층 - Google Patents
발광 장치에 사용하기 위한 p-형 도핑 층 Download PDFInfo
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Abstract
Description
도 1은 개략적으로 발광 다이오드를 도시한다;
도 2는 활성층의 V-결함을 채우는 부적절하게 도핑된 p-형 질화 갈륨(p-GaN)의 영역을 갖는 발광 다이오드를 개략적으로 도시한다;
도 3은 활성층에 인접한 p-GaN 층을 갖는 발광 다이오드를 개략적으로 도시한다;
도 4는 실시 형태에 따라, 델타 도핑된(delta doped) 층을 갖는 발광 장치를 개략적으로 도시한다;
도 5는 실시 형태에 따라, 델타 도핑된 층과 다른 장치 층을 갖는 발광 장치를 개략적으로 도시한다;
도 6은 실시 형태에 따라, 발광 장치를 형성하는 방법을 도시한다;
도 7은 마그네슘 델타 도핑된 층과 p-GaN 층을 형성하는 데 사용되는 압력 대 시간 펄싱 플롯을 도시한다.
Claims (35)
- 발광 다이오드(LED)로서,
n-형 도펀트로 도핑된 n-형 질화 갈륨(GaN) 층;
상기 n-형 GaN 층에 인접하여 있고 1개 이상의 V-피트(pit)를 갖고 인듐(In)을 포함하는 활성층;
상기 활성층에 인접하여 있고, 습윤 물질로서 인듐(In)을 포함하고 p-형 도펀트로서 마그네슘(Mg)을 포함하는 p-형 델타 도핑된 층; 및
상기 p-형 델타 도핑된 층에 인접하여 있고 p-형 도펀트로 도핑되는 p-형 GaN 층을 포함하고,
상기 p-형 GaN 층은 제1 부분과 제2 부분을 갖고, 상기 제1 부분은 상기 활성층 위에 배치되고, 상기 제2 부분은 상기 1개 이상의 V-피트에 의해 측면으로 경계지어진 상기 p-형 GaN 층의 부분이고,
마그네슘 밀도(intensity)는 상기 p-형 델타 도핑된 층에서 피크를 갖고, 인듐 밀도(intensity)는 상기 p-형 델타 도핑된 층에서 제1 피크, 상기 활성층에서 제2 피크를 갖고, 상기 p-형 델타 도핑된 층에서의 인듐 밀도의 제1 피크는 상기 활성층에서의 인듐 밀도의 제2 피크보다 낮은, 발광 다이오드. - 제1항에 있어서, 상기 제1 부분에서의 상기 p-형 도펀트의 농도가 적어도 1x1020 cm-3 인, 발광 다이오드.
- 제1항에 있어서, 상기 n-형 GaN 층에 인접하여 있는 실리콘 기판을 더 포함하는, 발광 다이오드.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 활성층이 1x108 cm-2와 5xl09 cm-2 사이의 변위 밀도(dislocation density)를 갖는, 발광 다이오드.
- 발광 다이오드(LED)로서,
n-GaN 층;
상기 n-GaN 층에 인접하여 있고 1개 이상의 V-피트(pit)와 인듐(In)을 포함하는 활성층;
상기 활성층에 인접하여 있는 전자 차단층; 및
상기 전자 차단층에 인접하여 있는 p-GaN 층을 포함하고,
상기 발광 다이오드는 상기 전자 차단층과 상기 p-GaN 층 사이에 마그네슘(Mg)과 인듐(In)을 포함하는 p-형 도펀트 주입층을 포함하고,
마그네슘 밀도(intensity)는 상기 p-형 도펀트 주입층에서 피크를 갖고, 인듐 밀도(intensity)는 상기 p-형 도펀트 주입층에서 제1 피크, 상기 활성층에서 인듐 밀도의 제2 피크를 갖고, 상기 p-형 도펀트 주입층에서의 인듐 밀도의 제1 피크는 상기 활성층에서의 인듐 밀도의 제2 피크보다 낮은, 발광 다이오드. - 삭제
- 제12항에 있어서, 상기 활성층이 1x108 cm-2와 5x109 cm-2 사이의 변위 밀도를 갖는, 발광 다이오드.
- 삭제
- 삭제
- 삭제
- 삭제
- 발광 다이오드(LED)를 형성하는 방법으로서,
활성층에 인접하여 있고 상기 활성층의 하나 이상의 V-피트 내로 확장되는 p-형 III-V족 반도체 층을 반응 챔버 내의 기판 위에 형성하는 단계를 포함하고,
상기 p-형 III-V족 반도체 층이,
인듐(In)을 포함하는 습윤 층을 마그네슘(Mg)으로 델타 도핑하는 단계; 및
상기 반응 챔버 내에 III족 원소의 소스 가스와 V족 원소의 소스 가스를 도입하는 단계에 의해 형성되는, 발광 다이오드 형성 방법. - 제19항에 있어서, 상기 습윤 층을 형성하기 전에, 전자 차단층이 상기 활성층에 인접하여 형성되는, 발광 다이오드 형성 방법.
- 삭제
- 삭제
- 제1항에 있어서, 상기 p-형 GaN 층이 상기 활성층의 하나 이상의 V-피트 내로 확장되는, 발광 다이오드.
- 제1항에 있어서, 상기 제2 부분에서의 상기 p-형 도펀트의 농도가 적어도 1x1020 cm-3 인, 발광 다이오드.
- 제1항에 있어서, 상기 p-형 델타 도핑된 층에서의 인듐 밀도의 제1 피크는 상기 활성층에서의 인듐 밀도의 제2 피크의 1/100 이하인, 발광 다이오드.
- 제1항에 있어서, 상기 활성층과 상기 p-형 델타 도핑된 층 사이에 전자 차단층을 더 포함하는, 발광 다이오드.
- 제1항에 있어서, 상기 p-형 델타 도핑된 층에서의 마그네슘 밀도의 피크는 상기 p-형 델타 도핑된 층에서의 인듐 밀도의 제1 피크와 일치하는, 발광 다이오드.
- 제12항에 있어서, 상기 p-형 도펀트 주입층에서의 인듐 밀도의 제1 피크는 상기 활성층에서의 인듐 밀도의 제2 피크의 1/100 이하인, 발광 다이오드.
- 제12항에 있어서, 상기 p-형 도펀트 주입층에서의 마그네슘 밀도의 피크는 상기 p-형 도펀트 주입층에서의 인듐 밀도의 제1 피크와 일치하는, 발광 다이오드.
- 제12항에 있어서, 상기 p-형 도펀트 주입층은 질소(N)를 추가로 포함하는, 발광 다이오드.
- 제12항에 있어서, 상기 p-GaN 층이 상기 활성층의 하나 이상의 V-피트 내로 확장되는, 발광 다이오드.
- 제12항에 있어서, 상기 p-GaN 층은 제1 부분과 제2 부분을 갖고, 상기 제1 부분은 상기 활성층 위에 배치되고, 상기 제2 부분은 상기 1개 이상의 V-피트에 의해 측면으로 경계지어진 p-GaN 층의 부분인, 발광 다이오드.
- 제32항에 있어서, 상기 제2 부분에서의 p-형 도펀트의 농도가 적어도 1x1020 cm-3 인, 발광 다이오드.
- 제19항에 있어서, 상기 델타 도핑하는 단계는 상기 기판이 배치되는 상기 반응 챔버 내에 마그네슘의 전구체를 펄싱하는 단계를 포함하는, 발광 다이오드 형성 방법.
- 제34항에 있어서, 상기 마그네슘의 전구체는 0.1 초와 15 분 사이의 기간 동안 펄싱되는, 발광 다이오드 형성 방법.
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WO2013049415A2 (en) | 2013-04-04 |
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US20160043275A1 (en) | 2016-02-11 |
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US20140106493A1 (en) | 2014-04-17 |
US20150024531A1 (en) | 2015-01-22 |
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US9490392B2 (en) | 2016-11-08 |
HK1192061A1 (zh) | 2014-08-08 |
TWI557937B (zh) | 2016-11-11 |
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