KR20080108532A - Ⅲ족 질화물 반도체 발광 소자, ⅲ족 질화물 반도체 발광 소자의 제조 방법 및 램프 - Google Patents
Ⅲ족 질화물 반도체 발광 소자, ⅲ족 질화물 반도체 발광 소자의 제조 방법 및 램프 Download PDFInfo
- Publication number
- KR20080108532A KR20080108532A KR1020087024718A KR20087024718A KR20080108532A KR 20080108532 A KR20080108532 A KR 20080108532A KR 1020087024718 A KR1020087024718 A KR 1020087024718A KR 20087024718 A KR20087024718 A KR 20087024718A KR 20080108532 A KR20080108532 A KR 20080108532A
- Authority
- KR
- South Korea
- Prior art keywords
- group iii
- layer
- nitride semiconductor
- iii nitride
- light emitting
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 246
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- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
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- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
- H01L33/0066—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound
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- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/04—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
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Abstract
Description
Claims (20)
- 반도체 적층 구조와, Ⅲ족 질화물 반도체로 이루어지는 발광층과, 상기 반도체 적층 구조의 표측과 이측에 각각 형성된 전극을 구비한 Ⅲ족 질화물 반도체 발광 소자로서,상기 반도체 적층 구조가, 고농도의 불순물 원자를 함유하는 Ⅲ족 질화물 반도체로 이루어지는 고농도층과, 상기 고농도층보다도 저농도의 불순물 원자를 함유하는 Ⅲ족 질화물 반도체로 이루어지는 저농도층으로 이루어지는 불순물층과, Ⅲ족 질화물 반도체층을 적어도 구비한 것이며,상기 Ⅲ족 질화물 반도체층 상에는 상기 저농도층과 상기 고농도층이 이 순으로 연속하여 형성되어 있는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항에 있어서,상기 불순물층이, 서로 인접하여 복수 구비되어 있는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 또는 제2항에 있어서,상기 고농도층 및 상기 저농도층의 두께가 각각 0.5∼500㎚인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 저농도층의 두께가, 상기 고농도층의 두께 이상인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제4항 중 어느 한 항에 있어서,상기 불순물층이 10∼1000층 적층되어 있는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 불순물층의 전체의 두께가 0.1∼10㎛인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제6항 중 어느 한 항에 있어서,상기 고농도층의 불순물 원자의 농도가 5×1017∼5×1019㎝-3인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제7항 중 어느 한 항에 있어서,상기 저농도층의 불순물 원자의 농도가 2×1019Cm-3 이하인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제8항 중 어느 한 항에 있어서,상기 불순물 원자가, 실리콘(Si), 게르마늄(Ge), 황(S), 셀레늄(Se), 주석(Sn) 및 텔루륨(Te)으로 이루어지는 군에서 선택된 1종 또는 2종 이상을 조합한 것인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제9항 중 어느 한 항에 있어서,상기 Ⅲ족 질화물 반도체층이, 도전성의 질화 갈륨계 화합물 반도체로 이루어지는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제1항 내지 제10항 중 어느 한 항에 있어서,상기 Ⅲ족 질화물 반도체층이, 도전성을 갖는 기체 상에 형성된 것인 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 제11항에 있어서,상기 불순물층과 상기 기체의 도전형이 동일한 Ⅲ족 질화물 반도체 발광 소자.
- 제11항 또는 제12항에 있어서,상기 기체가, 실리콘(Si) 또는 산화아연(ZnO)으로 이루어지는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자.
- 반도체 적층 구조와, Ⅲ족 질화물 반도체로 이루어지는 발광층과, 상기 반도체 적층 구조의 표측과 이측에 각각 형성된 전극을 구비하고,상기 반도체 적층 구조가, 고농도의 불순물 원자를 함유하는 Ⅲ족 질화물 반도체로 이루어지는 고농도층과, 상기 고농도층보다도 저농도의 불순물 원자를 함유하는 Ⅲ족 질화물 반도체로 이루어지는 저농도층으로 이루어지는 불순물층과, Ⅲ족 질화물 반도체층을 적어도 구비하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법으로서,상기 Ⅲ족 질화물 반도체층 상에, 상기 저농도층과 상기 고농도층을 이 순서로 연속하여 형성하는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제14항에 있어서,상기 고농도층을 형성하는 공정에서만 상기 불순물 원자를 도핑함으로써, 상기 불순물층을 형성하는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제14항 또는 제15항에 있어서,기체 상에 상기 Ⅲ족 질화물 반도체층을 형성하는 공정을 구비하는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제16항에 있어서,상기 기체가 도전성을 갖는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제16항에 있어서,상기 기체가 절연성을 갖는 것이며, 상기 기체 상에 Ⅲ족 질화물 반도체층을 형성한 후, 상기 기체를 제거하는 공정을 구비하는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제14항 내지 제18항 중 어느 한 항에 있어서,상기 Ⅲ족 질화물 반도체층이, 질화 갈륨계 화합물 반도체로 이루어지는 것을 특징으로 하는 Ⅲ족 질화물 반도체 발광 소자의 제조 방법.
- 제1항 내지 제13항 중 어느 한 항의 Ⅲ족 질화물 반도체 발광 소자를 이용한 것을 특징으로 하는 램프.
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JP2011054935A (ja) | 2009-06-19 | 2011-03-17 | Rohm & Haas Electronic Materials Llc | ドーピング方法 |
US8536615B1 (en) | 2009-12-16 | 2013-09-17 | Cree, Inc. | Semiconductor device structures with modulated and delta doping and related methods |
US8604461B2 (en) | 2009-12-16 | 2013-12-10 | Cree, Inc. | Semiconductor device structures with modulated doping and related methods |
JP5440674B1 (ja) | 2012-09-18 | 2014-03-12 | ウシオ電機株式会社 | Led素子及びその製造方法 |
JP5839293B2 (ja) | 2013-03-29 | 2016-01-06 | ウシオ電機株式会社 | 窒化物発光素子及びその製造方法 |
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US7456445B2 (en) * | 2004-05-24 | 2008-11-25 | Showa Denko K.K. | Group III nitride semiconductor light emitting device |
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US8049227B2 (en) | 2011-11-01 |
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