JP2010525573A - 成長基板を有する発光ダイオード上の透明オーム接触 - Google Patents
成長基板を有する発光ダイオード上の透明オーム接触 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- H01L33/36—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 electrodes
- H01L33/40—Materials therefor
- H01L33/42—Transparent materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- H01L33/005—Processes
- H01L33/0093—Wafer bonding; Removal of the growth substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- 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
- H01L33/20—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 particular shape, e.g. curved or truncated substrate
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
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Abstract
Description
本発明は、発光ダイオードに関し、より具体的には、発光エピタキシャル層がその上に成長させられる基板の少なくとも一部を含む発光ダイオードの外部量子効率に関する。
Claims (42)
- 成長基板と、
該成長基板の第1の表面上の実質的に透過性のオーム接触と、
該成長基板の第2の表面上のIII族窒化物発光活性領域と、
該活性領域内で発生させられる光を伝送する該活性領域上のp型III族窒化物接触層と、
該p型接触層上の実質的に透過性のオーム接触と
を備える、発光ダイオード。 - 前記オーム接触と反対側の前記成長基板の前記第2の表面上の緩衝構造と、
該緩衝構造上の前記III族窒化物発光活性領域と
をさらに備える、請求項1に記載の発光ダイオード。 - 前記透過性オーム接触のうちの少なくとも1つは、インジウム酸化スズ、酸化ニッケル、酸化亜鉛、カドミウム酸化スズ、ニッケルチタンタングステン、酸化インジウム、酸化スズ、酸化マグネシウム、ZnGa2O4、SnO2/Sb、Ga2O3/Sn、AgInO2/Sn、In2O3/Zn、CuAlO2、LaCuOS、CuGaO2、およびSrCu2O2から成る群から選択される、請求項1に記載の発光ダイオード。
- 前記成長基板は、伝導性炭化ケイ素を備える、請求項1に記載の発光ダイオード。
- 化学量論的および非化学量論的窒化ケイ素から成る群から選択される、前記p型層との前記オーム接触上の光伝送窒化ケイ素組成不動態化層をさらに備える、請求項1に記載の発光ダイオード。
- スパッタリング蒸着された窒化ケイ素層を備える、請求項5に記載の発光ダイオード。
- 前記基板と、該基板との前記オーム接触とは、その間に水晶体表面を画定する、請求項5に記載の発光ダイオード。
- ヘッダと、
該ヘッダ上の請求項1に記載の発光ダイオードと、
該ヘッダ上の該発光ダイオード上の封止材と
を備える、LEDランプ。 - 前記発光ダイオードによって放出される周波数をダウンコンバートする、前記封止材内の蛍光体をさらに備える、請求項8に記載のLEDランプ。
- 請求項8に記載の少なくとも1つのLEDランプと、
液晶と、
光分配器と、
カラーフィルタと
を備える、ディスプレイ。 - 請求項1に記載の発光ダイオードであって、前記実質的に透過性のオーム接触は、光子が該ダイオードを出射するときにフレネル損失を最小にする段階的な屈折率を形成する複数の層の伝導性酸化物を備える、発光ダイオード。
- 前記実質的に透過性のオーム接触は、該接触全体を通してインジウムの原子分率において段階的であることにより、該接触を横断して段階的な屈折率を形成するインジウム酸化スズを備える、請求項1に記載の発光ダイオード。
- 成長基板と、
該成長基板上のそれぞれのp型およびn型エピタキシャル層であって、該成長基板の屈折率以下の屈折率を有する、エピタキシャル層と、
該成長基板と反対側の該エピタキシャル層上の透過性オーム接触と
を備える、発光ダイオード。 - 前記成長基板に隣接する前記エピ層との透過性オーム接触をさらに備える、請求項13に記載の発光ダイオード。
- 前記透過性オーム接触は、インジウム酸化スズ、酸化ニッケル、酸化亜鉛、カドミウム酸化スズ、ニッケルチタンタングステン、酸化インジウム、酸化スズ、酸化マグネシウム、ZnGa2O4、SnO2/Sb、Ga2O3/Sn、AgInO2/Sn、In2O3/Zn、CuAlO2、LaCuOS、CuGaO2、およびSrCu2O2から成る群から選択される、請求項13に記載の発光ダイオード。
- 前記成長基板は、炭化ケイ素である、請求項13に記載の発光ダイオード。
- 前記エピタキシャル層は、前記III族窒化物材料系から選択され、
前記それぞれのn型層は前記成長基板上にあり、前記それぞれのp型層は該n型層上にあって、
前記透過性オーム接触は、前記III族窒化物のp型層にある、
請求項16に記載の発光ダイオード。 - 前記透過性オーム接触は、実質的に全部の前記p型エピタキシャル層を被覆し、
前記ダイオードは、該透過性オーム接触との接着パッドをさらに備える、
請求項17に記載の発光ダイオード。 - 前記接着パッドは、前記成長基板に対向する少なくとも1つの反射表面を有する少なくとも1つの層を含む、請求項18に記載の発光ダイオード。
- 前記n型エピタキシャル層との反射オーム接触を備える、請求項18に記載の発光ダイオード。
- 前記n型エピタキシャル層との接着パッドを備える、請求項20に記載の発光ダイオード。
- 前記基板は、光抽出を向上させるように成形される、請求項13に記載の発光ダイオード。
- 前記透過性オーム接触および前記エピタキシャル層の上に水晶体表面をさらに備える、請求項13に記載の発光ダイオード。
- ヘッダと、
該ヘッダ上の請求項18に記載の発光ダイオードと、
該ヘッダ上の該発光ダイオード上の封止材と
を備える、LEDランプ。 - 前記発光ダイオードによって放出される周波数をダウンコンバートする、前記封止材内の蛍光体をさらに備える、請求項24に記載のLEDランプ。
- 請求項24に記載の少なくとも1つのLEDランプと、
液晶と、
光分配器と、
カラーフィルタと
を備える、ディスプレイ。 - 請求項13に記載の発光ダイオードであって、前記実質的に透過性のオーム接触は、光子が該ダイオードを出射するときにフレネル損失を最小にする段階的な屈折率を形成する複数の層の伝導性酸化物を備える、発光ダイオード。
- 前記実質的に透過性のオーム接触は、該接触全体を通してインジウムの原子分率において段階的であることにより、該接触を横断して段階的な屈折率を形成するインジウム酸化スズを備える、請求項13に記載の発光ダイオード。
- 伝導性実装基板と、
該実装基板上の金属接着層と、
該接着層上のエピタキシャル発光活性構造であって、少なくとも1つのn型およびp型のエピタキシャル層を含む、発光活性構造と、
該活性構造上の成長基板材料の部分と、
該成長基板との透過性オーム接触と、
該実装基板とのオーム接触と
を備える、発光ダイオード。 - 前記実装基板との前記オーム接触は、透過性である、請求項29に記載の発光ダイオード。
- 前記接着層は、少なくとも1つの反射層を含む、請求項29に記載の発光ダイオード。
- 前記成長基板部分と、該成長基板部分との前記透過性オーム接触とは、水晶体表面を画定する、請求項29に記載の発光ダイオード。
- 前記成長基板は、炭化ケイ素を備える、請求項29に記載の発光ダイオード。
- 前記活性構造エピタキシャル層は、III族窒化物材料系から選択される、請求項29に記載の発光ダイオード。
- 前記p型エピタキシャル層は、前記接着層上にあり、前記n型エピタキシャル層は、該p型エピタキシャル層上にある、請求項29に記載の発光ダイオード。
- 前記成長基板部分上の前記透過性オーム接触との接着パッドをさらに備える、請求項29に記載の発光ダイオード。
- 前記接着パッドは、前記成長基板に対向する少なくとも1つの反射層を含む、請求項36に記載の発光ダイオード。
- ヘッダと、
該ヘッダ上の請求項29に記載の発光ダイオードと、
該ヘッダ上の該発光ダイオード上の封止材と
を備える、LEDランプ。 - 前記発光ダイオードによって放出される周波数をダウンコンバートする、前記封止材内の蛍光体をさらに備える、請求項38に記載のLEDランプ。
- 請求項38に記載の少なくとも1つのLEDランプと、
液晶と、
光分配器と、
カラーフィルタと
を備える、ディスプレイ。 - 前記実質的に透過性のオーム接触は、光子が前記ダイオードを出射するときにフレネル損失を最小にする段階的な屈折率を形成する複数の層の伝導性酸化物を備える、請求項29に記載の発光ダイオード。
- 前記実質的に透過性オーム接触は、該接触全体を通してインジウムの原子分率において段階的であることにより、該接触を横断して段階的な屈折率を形成するインジウム酸化スズを備える、請求項29に記載の発光ダイオード。
Applications Claiming Priority (2)
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US11/738,122 US8101961B2 (en) | 2006-01-25 | 2007-04-20 | Transparent ohmic contacts on light emitting diodes with growth substrates |
PCT/US2008/059381 WO2008130821A2 (en) | 2007-04-20 | 2008-04-04 | Transparent ohmic contacts on light emitting diodes with growth substrates |
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JP2010525573A true JP2010525573A (ja) | 2010-07-22 |
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JP2010504158A Pending JP2010525573A (ja) | 2007-04-20 | 2008-04-04 | 成長基板を有する発光ダイオード上の透明オーム接触 |
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US (1) | US8101961B2 (ja) |
JP (1) | JP2010525573A (ja) |
CN (1) | CN101681973B (ja) |
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WO (1) | WO2008130821A2 (ja) |
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CN102956781B (zh) * | 2011-08-31 | 2015-03-11 | 新世纪光电股份有限公司 | 发光元件及其制作方法 |
US20140064546A1 (en) * | 2012-08-01 | 2014-03-06 | Knowles Electronics, Llc | Microphone assembly |
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US20080083930A1 (en) | 2008-04-10 |
CN101681973A (zh) | 2010-03-24 |
US8101961B2 (en) | 2012-01-24 |
CN101681973B (zh) | 2014-07-23 |
WO2008130821A3 (en) | 2009-04-02 |
TW200901521A (en) | 2009-01-01 |
WO2008130821A2 (en) | 2008-10-30 |
TWI414079B (zh) | 2013-11-01 |
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