JP2018093136A - 光半導体装置 - Google Patents
光半導体装置 Download PDFInfo
- Publication number
- JP2018093136A JP2018093136A JP2016237607A JP2016237607A JP2018093136A JP 2018093136 A JP2018093136 A JP 2018093136A JP 2016237607 A JP2016237607 A JP 2016237607A JP 2016237607 A JP2016237607 A JP 2016237607A JP 2018093136 A JP2018093136 A JP 2018093136A
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- Prior art keywords
- layer
- electrode
- optical semiconductor
- semiconductor device
- cladding layer
- Prior art date
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Abstract
【解決手段】光半導体装置10は、透光性の支持基板20と、支持基板20上のバッファ層22と、バッファ層22の外周領域60上に枠状に設けられるシールリング(例えば第1電極32)と、バッファ層22の内側領域62上に設けられる活性層26と、活性層26上に設けられる電極(例えば第2電極34)とを有する光半導体素子12と、光半導体素子12が実装される実装基板14と、シールリングと実装基板14の間を封止する封止部16と、を備える。
【選択図】図1
Description
Claims (9)
- 透光性の支持基板と、前記支持基板上のバッファ層と、前記バッファ層の外周領域上に枠状に設けられるシールリングと、前記バッファ層の内側領域上に設けられる活性層と、前記活性層上に設けられる電極とを有する光半導体素子と、
前記光半導体素子が実装される実装基板と、
前記シールリングと前記実装基板の間を封止する封止部と、を備えることを特徴とする光半導体装置。 - 前記支持基板は、サファイア(Al2O3)基板、窒化アルミニウム(AlN)基板または窒化アルミニウムガリウム(AlGaN)基板であり、
前記バッファ層は、アンドープのAlN層およびAlGaN層の少なくとも一方を含み、
前記活性層は、AlGaNを含むことを特徴とする請求項1に記載の光半導体装置。 - 前記光半導体素子は、前記バッファ層と前記活性層の間であって前記バッファ層の前記外周領域上および前記内側領域上に設けられる第1クラッド層と、前記活性層と前記電極の間に設けられる第2クラッド層とをさらに有し、
前記シールリングは、前記第1クラッド層の前記外周領域上に設けられる第1電極であり、
前記活性層上の前記電極は、前記第2クラッド層上に設けられる第2電極であることを特徴とする請求項1または2に記載の光半導体装置。 - 前記光半導体素子は、前記バッファ層と前記活性層の間であって前記バッファ層の前記内側領域上に設けられる第1クラッド層と、前記活性層と前記電極の間に設けられる第2クラッド層と、前記第1クラッド層の前記内側領域内の第1領域上に設けられる第1電極とをさらに有し、
前記活性層は、前記第1クラッド層の前記内側領域内の前記第1領域とは異なる第2領域上に設けられ、
前記活性層上の前記電極は、前記第2クラッド層上に設けられる第2電極であることを特徴とする請求項1または2に記載の光半導体装置。 - 前記光半導体素子は、前記第1クラッド層の露出部分を被覆する絶縁層をさらに有することを特徴とする請求項3または4に記載の光半導体装置。
- 前記絶縁層は、前記シールリングの側面をさらに被覆することを特徴とする請求項5に記載の光半導体装置。
- 前記第1クラッド層は、n型のAlGaN層であり、前記第2クラッド層は、p型のAlGaN層であり、
前記第1電極は、n側電極であり、前記第2電極は、p側電極であることを特徴とする請求項3から6のいずれか一項に記載の光半導体装置。 - 前記シールリングは、前記バッファ層上にチタン(Ti)/白金(Pt)/金(Au)またはクロム(Cr)/Pt/Auが順に積層された多層膜であることを特徴とする請求
項1から7のいずれか一項に記載の光半導体装置。 - 前記封止部は、金錫(AuSn)を含むことを特徴とする請求項1から8のいずれか一項に記載の光半導体装置。
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