JP2009038344A - 格子整合基板上への窒化物系光電子/電子デバイス構造体の形成 - Google Patents
格子整合基板上への窒化物系光電子/電子デバイス構造体の形成 Download PDFInfo
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- H10H20/0137—Manufacture or treatment of bodies, e.g. forming semiconductor layers having light-emitting regions comprising only Group III-V materials the light-emitting regions comprising nitride materials
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- H10D62/85—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
- H10D62/8503—Nitride Group III-V materials, e.g. AlN or GaN
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Abstract
【解決手段】AlInGaN合金層3は窒化物基板2上にエピタキシャル成長により製膜される。そして上記AlInGaN合金層3はその成長の土台であった前記窒化物基板2から分離される。この結果得られる電子または光電子デバイス構造体は、高い品質のエピタキシャル層及び低い転移密度を有する基板となる。
【選択図】図1
Description
窒化物基板上に1つまたは複数のAlInGaN層をエピタキシャル成長させて複合半導体デバイスを製造するステップと、
複合半導体デバイスから基板を除去し、電子または光電子デバイス構造体を製造するステップと
を備え、
この電子または光電子デバイス構造体には、実質的に、成長の土台であった窒化物基板が存在しない。
格子整合基板上に1つまたは複数のAlInGaN合金層をエピタキシャル成長させ、複合半導体デバイスを製造するステップと、
複合半導体デバイスから基板を除去し、電子または光電子デバイス構造体を製造するステップと
を備え、
この電子または光電子デバイス構造体には、成長の土台であった基板が存在しない。
例1
<GaN基板上に成長されるUV LEDとグラインディング(研削)による基板除去>
例2
<GaN基板上に成長されるUV LEDと光子曝露による基板除去>
例3
<GaN基板上に成長されるUV LEDとイオンインプランテーション及びRTAによる基板除去>
例4
<GaN基板上に成長されるHEMTとグラインディングによる基板除去及びこれに続くダイヤモンドへの取付け>
Claims (33)
- 電子または光電子デバイス構造体の製造方法であって、
1つまたは複数のAlInGaN合金層を窒化物基板上にエピタキシャル成長させ、複合半導体デバイスを形成することと、
前記複合半導体デバイスから前記基板を取り除き、結果的に電子または光電子デバイス構造体を形成することと
を備え、
前記AlInGaN合金と前記窒化物基板とは異なる物質を含み、前記電子または光電子デバイス構造体には成長の土台であった前記窒化物基板が存在しない方法。 - 前記電子または光電子デバイス構造体には、ダイオード、トランジスタ、検出器、集積回路、抵抗器及びキャパシタの何れかが含まれる、請求項1記載の方法。
- 前記電子または光電子デバイス構造体はダイオードを備え、かつ約400nm以下の波長を発するようになっている、請求項2記載の方法。
- 前記ダイオードはUV発光ダイオード(LED)である、請求項3記載の方法。
- 前記電子または光電子デバイス構造体は高電子移動度トランジスタ(HEMT)を備える、請求項1記載の方法。
- 前記複合半導体デバイスは、さらに分離層を備える、請求項1記載の方法。
- 前記基板は研削、エッチング、光学的分離または破砕の何れかによって除去される、請求項1記載の方法。
- 前記基板は破砕によって除去され、前記破砕はイオンインプランテーション及びRTAによって実行される、請求項7記載の方法。
- 前記除去された基板は実質的に無傷であり、再使用されるようになっている、請求項1記載の方法。
- 前記電子または光電子デバイス構造体を前記基板の除去後にアニールすることをさらに含む、請求項1記載の方法。
- 前記電子または光電子デバイス構造体を前記基板の除去後に化学洗浄することをさらに含む、請求項1記載の方法。
- 前記電子または光電子デバイス構造体へ基板を付着することをさらに含み、前記付着される基板は前記1つまたは複数のAlInGaN合金層をその上で成長させた基板とは異なる、請求項1記載の方法。
- 前記付着される基板は、シリコン、ダイヤモンド、サファイア、ガラス、銅または他の金属、AlN及びGaNの何れかを含む、請求項12記載の方法。
- 前記電子または光電子デバイス構造体にキャリアを付着することをさらに含む、請求項1記載の方法。
- 前記キャリアはシリコン、ダイヤモンド、サファイア、ガラス及び銅の何れかを含む、請求項14記載の方法。
- 前記キャリアは、前記1つまたは複数のAlInGaN層をその上で成長させた基板の除去に先行して付加される、請求項14記載の方法。
- 前記キャリアは前記エピタキシャル成長層へ付加される、請求項14記載の方法。
- 前記デバイス構造体内にバイアを画定することをさらに含む、請求項1記載の方法。
- 請求項1記載の方法によって形成される電子または光電子デバイス構造体。
- 電子または光電子デバイス構造体であって、
1つまたは複数のAlInGaN合金層を窒化物基板上に、または窒化物基板を覆ってエピタキシャル成長させ、複合半導体デバイスを形成することと、
前記複合半導体デバイスから前記基板を取り除き、結果的に電子または光電子デバイス構造体を形成することと
を備え、
前記AlInGaN合金と前記窒化物基板とは異なる物質を含み、前記電子または光電子デバイス構造体には成長の土台であった前記窒化物基板が存在しない方法、
によって形成される電子または光電子デバイス構造体。 - 前記AlInGaN合金はAlxInyGa1−x−yN、但し0≦x≦1及び0≦y≦1、である、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記AlInGaN合金はAlGaN、AlInN、InGaN、AlN及びInNの何れかから選択される、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記窒化物基板はGaNを含む、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記窒化物基板及び前記電子または光電子デバイス構造体の何れかは、約5×107cm−2以下の転位密度を有する、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記窒化物基板及び前記電子または光電子デバイス構造体の何れかは、約1×107cm−2以下の転位密度を有する、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記窒化物基板及び前記電子または光電子デバイス構造体の何れかは、約5×106cm−2以下の転位密度を有する、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記窒化物基板及び前記電子または光電子デバイス構造体の何れかは、約1×106cm−2以下の転位密度を有する、請求項1記載の方法または請求項20記載の電子または光電子デバイス構造体。
- 前記電子または光電子デバイス構造体はダイオード、トランジスタ、検出器、集積回路、抵抗器及びキャパシタの何れかを含む、請求項19または20の何れか1つに記載の電子または光電子デバイス構造体。
- エミッタダイオードに具現される、請求項19または20の何れか1つに記載の電子または光電子デバイス構造体。
- 前記エミッタダイオードはUV LEDである、請求項29記載の電子または光電子デバイス構造体。
- 非発光型の電子デバイスに具現される、請求項19または20の何れか1つに記載の電子または光電子デバイス構造体。
- 電子または光電子デバイス構造体の製造方法であって、
1つまたは複数のAlInGaN合金層を格子整合基板上にエピタキシャル成長させ、複合半導体デバイスを形成することと、
前記複合半導体デバイスから前記基板を取り除き、結果的に電子または光電子デバイス構造体を形成することと
を備え、
前記電子または光電子デバイス構造体には成長の土台であった前記基板が存在しない方法。 - 前記格子整合基板はGaNを含む、請求項40記載の方法。
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| US11/758,395 US20080303033A1 (en) | 2007-06-05 | 2007-06-05 | Formation of nitride-based optoelectronic and electronic device structures on lattice-matched substrates |
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| JP2013502730A (ja) * | 2009-08-21 | 2013-01-24 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | ヘテロ界面にミスフィット転位を有する部分的または完全に緩和された合金上の半極性窒化物ベースの素子 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20170186913A1 (en) | 2017-06-29 |
| DE102008026828A1 (de) | 2009-02-12 |
| US20080303033A1 (en) | 2008-12-11 |
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