JP6715962B2 - 放射放出半導体チップ - Google Patents
放射放出半導体チップ Download PDFInfo
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Description
2 半導体本体
3 第1のコンタクト層
4 第2のコンタクト層
6 絶縁層
7 パッシベーション層
8 矢印
20 活性領域
21 第1の半導体層
22 第2の半導体層
25 凹部
28 放射出口面
29 担体
31 第1のコンタクトエリア
35 第1のコンタクトフィンガ構造
41 第2のコンタクトエリア
42 接触層
43 ミラー層
44 バリア層
45 第2のコンタクトフィンガ構造
51 電流分布層
52 接続層
60 開口部
65 誘電体ミラー層
91 第1のコンタクト構造
92 第2のコンタクト構造
250 側面
650 凹部
Claims (21)
- 放射放出半導体チップ(1)であって、
放射を生成する活性領域(20)を有する半導体本体(2)と、
前記半導体チップ(1)との外部電気接触用の第1のコンタクトエリア(31)と、前記第1のコンタクトエリア(31)に接続された第1のコンタクトフィンガ構造(35)とを有する第1のコンタクト層(3)と、
前記半導体チップ(1)との外部電気接触用の第2のコンタクトエリア(41)と、前記第2のコンタクトエリア(41)に接続され、前記半導体チップ(1)の平面視で前記第1のコンタクトフィンガ構造(35)と部分的に重なる第2のコンタクトフィンガ構造(45)とを有する第2のコンタクト層(4)と、
前記第1のコンタクト層(3)に導電接続された電流分布層(51)と、
前記電流分布層(51)を介して前記第1のコンタクト層(3)に導電接続された接続層(52)と、
誘電体材料を含み、前記接続層(52)と前記電流分布層(51)との間に部分的に配置された絶縁層(6)と、
を備え、
前記絶縁層(6)は、前記接続層(52)と前記電流分布層(51)とが互いに境界を接する少なくとも1つの開口部(60)を有し、
前記開口部(60)の直径は、2μm以上6μm以下である、
放射放出半導体チップ(1)。 - 前記絶縁層(6)は、前記接続層(52)の面積の少なくとも30%を覆う、
請求項1に記載の放射放出半導体チップ(1)。 - 前記開口部(60)の直径は、1μm以上20μm以下である、
請求項1に記載の放射放出半導体チップ(1)。 - 前記絶縁層(6)は、第1の角度範囲内の入射放射の大部分を透過する一方、第2の角度範囲内の入射放射の大部分を反射するフィルタ層として形成されている、
請求項1〜3のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記絶縁層(6)は、前記接続層(52)および前記電流分布層(51)と境界を接する、
請求項1〜4のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記接続層(6)の厚さは、前記電流分布層(51)より小さい、
請求項1〜5のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記第1のコンタクトエリア(31)および前記第2のコンタクトエリア(41)は、前記半導体本体(2)の放射出口面(28)上に配置され、前記放射出口面(28)と反対を向く側から外部電気接触用にアクセス可能である、
請求項1〜6のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記第2のコンタクトフィンガ構造(45)の総面積の少なくとも50%は、前記第1のコンタクトフィンガ構造(35)と重なる、
請求項1〜7のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記半導体本体(2)は、放射出口面(28)から前記活性領域(20)を通って延びた少なくとも1つの凹部(25)を有し、
前記凹部(25)中の前記第2のコンタクト層(4)は、前記半導体本体(2)に導電接続されている、
請求項1〜8のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記絶縁層(6)は、前記第1のコンタクト層(3)と前記第2のコンタクト層(4)との間に配置されている、
請求項1〜9のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記半導体チップ(1)のいずれの箇所にも、前記第1のコンタクト層(3)と前記半導体本体(2)との間に直接的な垂直電流路が存在しない、
請求項1〜10のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記半導体本体(2)と前記電流分布層(51)との間の領域に誘電体ミラー層(65)が配置されている、
請求項1〜11のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記誘電体ミラー層(65)は、前記半導体チップ(1)の平面視で前記第1のコンタクト層(3)および前記第2のコンタクト層(4)と部分的に重なる、
請求項12に記載の放射放出半導体チップ(1)。 - 前記誘電体ミラー層(65)は、前記半導体本体(2)と前記第2のコンタクト層(4)との間に部分的に配置されている、
請求項12または13に記載の放射放出半導体チップ(1)。 - 前記誘電体ミラー層(65)は、高屈折率および低屈折率の交互副層で構成された積層体を備える、
請求項12〜14のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記接続層(52)は、TCO材料を含む、
請求項1〜15のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記第2のコンタクト層(4)は、接触層(42)と、バリア層(44)と、前記接触層(42)と前記バリア層(44)との間に配置されたミラー層(43)とを備える、
請求項1〜16のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記接触層(42)は、TCO材料を含み、
前記ミラー層(43)は、銀を含む、
請求項17に記載の放射放出半導体チップ(1)。 - 前記電流分布層(51)は、TCO材料を含む、
請求項1〜18のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記絶縁層(6)は、複数の開口部を有し、
前記放射放出半導体チップ(1)の縁部には、前記放射放出半導体チップ(1)の中央の開口部よりも大きい1つまたは複数の開口部が設けられている、
請求項1〜19のいずれか一項に記載の放射放出半導体チップ(1)。 - 前記絶縁層(6)は、複数の開口部を有し、
前記半導体本体(2)の放射出口面(28)の縁部領域には、前記放射出口面(28)の中央領域よりも多くの開口部が設けられている、
請求項1〜20のいずれか一項に記載の放射放出半導体チップ(1)。
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DE102016112587.3A DE102016112587A1 (de) | 2016-07-08 | 2016-07-08 | Strahlungsemittierender Halbleiterchip |
PCT/EP2017/065715 WO2018007186A1 (de) | 2016-07-08 | 2017-06-26 | Strahlungsemittierender halbleiterchip |
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KR102182509B1 (ko) | 2020-11-25 |
US11631783B2 (en) | 2023-04-18 |
US20220005974A1 (en) | 2022-01-06 |
KR20190015549A (ko) | 2019-02-13 |
JP2019519117A (ja) | 2019-07-04 |
CN109478585A (zh) | 2019-03-15 |
DE102016112587A1 (de) | 2018-01-11 |
US20230231080A1 (en) | 2023-07-20 |
DE112017003450A5 (de) | 2019-03-28 |
CN109478585B (zh) | 2021-08-17 |
US12080827B2 (en) | 2024-09-03 |
US11164994B2 (en) | 2021-11-02 |
US20190326471A1 (en) | 2019-10-24 |
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