JP6186380B2 - 半導体層に対するオーミックコンタクトを含むデバイスヘテロ構造を形成することを含む方法および半導体層に対するオーミックコンタクトを含むデバイスヘテロ構造を含むデバイス - Google Patents
半導体層に対するオーミックコンタクトを含むデバイスヘテロ構造を形成することを含む方法および半導体層に対するオーミックコンタクトを含むデバイスヘテロ構造を含むデバイス Download PDFInfo
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Description
本出願は、同時係属中の「Ohmic Contact to Semiconductors and the Process of Producing the Same」の名称において2012年2月23日に出願された米国特許仮出願第61/602,155号の恩典を主張するものであり、なお、当該仮出願は、参照により本明細書に組み入れられる。
Claims (16)
- 半導体層をエッチングすることなく、デバイスヘテロ構造の一セットの半導体層において半導体層に対するオーミックコンタクトを含む前記デバイスヘテロ構造を形成することを含む方法であって、
前記デバイスへテロ構造を形成することは、
前記半導体層の表面上の前記オーミックコンタクトに対応する一セットのコンタクト領域上にマスキング材料を適用し、
前記マスキング材料を適用した後に、前記半導体層の表面の一セットのマスクされていない領域を覆う隆起領域を形成し、
前記一セットのコンタクト領域上に一セットの高導電性半導体層を形成し、
前記隆起領域の形成後に前記一セットの高導電性半導体層上にオーミックコンタクトを形成することを含み、
前記一セットの高導電性半導体層を形成することは、前記一セットのコンタクト領域からの距離に関して前記一セットの高導電性半導体層を形成する材料の少なくとも1つの元素のモル分率に傾斜を持たせることを含み、
前記オーミックコンタクトを形成することは、デバイスヘテロ構造に前記一セットの半導体層のいずれかを形成する材料の品質が損なわれる温度範囲よりも低い処理温度において実施されることを特徴とする方法。 - 前記オーミックコンタクトを形成する前に、前記隆起領域上に少なくとも1つの追加の半導体層を形成することをさらに含む、請求項1に記載の方法。
- 前記オーミックコンタクトを形成する前に、前記一セットのコンタクト領域のそれぞれから前記マスキング材料を除去することをさらに含む、請求項1に記載の方法。
- 前記オーミックコンタクトを形成する前に、前記一セットのマスクされていない領域に対応する前記デバイスヘテロ構造の表面にマスキング材料を適用することをさらに含む、請求項1に記載の方法。
- 前記一セットの高導電性半導体層がIII族窒化物材料で形成され、
前記一セットの高導電性半導体層が、前記半導体層と前記一セットの高導電性半導体層との界面において前記半導体層と格子整合される、請求項1に記載の方法。 - 前記一セットの高導電性半導体層を形成することが、前記一セットの高導電性半導体層をデルタドーピングする工程を含む、請求項1に記載の方法。
- 前記一セットの高導電性半導体層が、III族窒化物材料で形成され、
前記傾斜を持たせることが、前記一セットのコンタクト領域から離れる方向にアルミニウムのモル分率が増加することである、請求項1に記載の方法。 - 前記傾斜を持たせることが、前記一セットのコンタクト領域から離れる方向にインジウムのモル分率が減少することである、請求項7に記載の方法。
- 前記一セットのコンタクト領域と前記一セットの高導電性半導体層との界面において、前記アルミニウムのモル分率が0である、請求項7または8に記載の方法。
- 前記傾斜が、前記一セットのコンタクト領域において逆キャリアの蓄積の誘起を避けるように構成される、請求項1に記載の方法。
- 前記デバイスヘテロ構造の前記一セットの半導体層がIII族窒化物材料で形成される、請求項1に記載の方法。
- デバイスヘテロ構造の一セットの半導体層において半導体層に対するオーミックコンタクトを含むデバイスヘテロ構造を含むデバイスであって、
前記オーミックコンタクトが、前記半導体層の一セットのコンタクト領域上に形成された一セットの高導電性半導体層を含み、
前記一セットの高導電性半導体層が、前記半導体層と前記一セットの高導電性半導体層との界面において前記半導体層と格子整合されることを特徴とするデバイス。 - 前記一セットの高導電性半導体層がIII族窒化物材料で形成される、請求項12に記載のデバイス。
- 前記一セットの高導電性半導体層がデルタドーピングされる、請求項12に記載のデバイス。
- 前記一セットの高導電性半導体層が、前記一セットのコンタクト領域からの距離に関して前記一セットの高導電性半導体層を形成する材料の少なくとも1つの元素の傾斜したモル分率を有する、請求項12に記載のデバイス。
- 前記傾斜が、前記一セットのコンタクト領域での逆キャリアの蓄積の誘起を避けるように構成される、請求項15に記載のデバイス。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261602155P | 2012-02-23 | 2012-02-23 | |
| US61/602,155 | 2012-02-23 | ||
| PCT/US2013/027496 WO2013126828A1 (en) | 2012-02-23 | 2013-02-22 | Ohmic contact to semiconductor |
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| JP2015513798A JP2015513798A (ja) | 2015-05-14 |
| JP2015513798A5 JP2015513798A5 (ja) | 2016-04-07 |
| JP6186380B2 true JP6186380B2 (ja) | 2017-08-23 |
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| US9412911B2 (en) | 2013-07-09 | 2016-08-09 | The Silanna Group Pty Ltd | Optical tuning of light emitting semiconductor junctions |
| US9818826B2 (en) * | 2013-10-21 | 2017-11-14 | Sensor Electronic Technology, Inc. | Heterostructure including a composite semiconductor layer |
| JP6206159B2 (ja) * | 2013-12-17 | 2017-10-04 | 三菱電機株式会社 | 半導体装置の製造方法 |
| KR102318317B1 (ko) | 2014-05-27 | 2021-10-28 | 실라나 유브이 테크놀로지스 피티이 리미티드 | 반도체 구조물과 초격자를 사용하는 진보된 전자 디바이스 구조 |
| US11322643B2 (en) | 2014-05-27 | 2022-05-03 | Silanna UV Technologies Pte Ltd | Optoelectronic device |
| CN106415854B (zh) | 2014-05-27 | 2019-10-01 | 斯兰纳Uv科技有限公司 | 包括n型和p型超晶格的电子装置 |
| JP6817072B2 (ja) | 2014-05-27 | 2021-01-20 | シランナ・ユー・ブイ・テクノロジーズ・プライベート・リミテッドSilanna Uv Technologies Pte Ltd | 光電子デバイス |
| JP6330604B2 (ja) * | 2014-09-24 | 2018-05-30 | 日亜化学工業株式会社 | 半導体発光素子 |
| CN104462290B (zh) * | 2014-11-27 | 2017-10-10 | 华为技术有限公司 | 文件系统复制方法及装置 |
| US20160169833A1 (en) * | 2014-12-11 | 2016-06-16 | International Business Machines Corporation | Biosensor based on heterojunction bipolar transistor |
| KR101641654B1 (ko) | 2015-05-13 | 2016-07-22 | 한국기계연구원 | 반도체 소자 및 반도체 소자 제조방법 |
| US9859461B2 (en) | 2015-07-13 | 2018-01-02 | Sensor Electronic Technology, Inc. | P-type contact to semiconductor heterostructure |
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| KR102288118B1 (ko) | 2021-08-11 |
| KR20140138204A (ko) | 2014-12-03 |
| KR20200034801A (ko) | 2020-03-31 |
| US20160104784A1 (en) | 2016-04-14 |
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| EP2817834A1 (en) | 2014-12-31 |
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| EP2817834B1 (en) | 2020-07-15 |
| US9269788B2 (en) | 2016-02-23 |
| JP2015513798A (ja) | 2015-05-14 |
| US9543400B2 (en) | 2017-01-10 |
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