JP2022517537A - 集積化エピタキシャル金属電極 - Google Patents
集積化エピタキシャル金属電極 Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 271
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/74—Making of localized buried regions, e.g. buried collector layers, internal connections substrate contacts
- H01L21/743—Making of internal connections, substrate contacts
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- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
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- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
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Abstract
Description
[0001] 本出願は、米国特許法第119条(e)の下で2016年9月22日出願の米国仮特許出願第62/398,416号の優先権を主張する(2018年11月13日に米国特許第10,128,350号として発行された)米国非仮特許出願第15/712,002号の継続である、2018年11月1日出願の同時係属中であり、且つ同一出願人による米国非仮特許出願第16/178,495号の一部継続出願であり、且つそれに対する優先権を主張するものである。
[0002] 本出願は、半導体デザインに、より特に、エピタキシャル金属が下部エピタキシャル酸化物と上部エピタキシャル半導体との間に導入される集積化エピタキシャル金属電極のための層状構造に関する。
Claims (20)
- 連続部分及び多孔質部分を有するモノリシック基材と、
前記モノリシック基材の上方の第1のエピタキシャル金属層と、
前記第1のエピタキシャル金属層の上方の第1の半導体層と
を含む、層状構造。 - 前記モノリシック基材が、シリコン(Si)、ゲルマニウム(Ge)、シリコンオンインシュレーター(SOI)及びSiGeの群から選択される1つ以上の第IV族元素を含む、請求項1に記載の層状構造。
- 前記モノリシック基材が、前記多孔質部分と、前記モノリシック基材の直接上方にある第1の層との間の連続材料から構成される移行層を含む、請求項1に記載の層状構造。
- 前記多孔質部分が、間にいかなる移行層も含まないで前記モノリシック基材の直接上方にある層と隣接する、請求項1に記載の層状構造。
- 前記第1のエピタキシャル金属層が前記モノリシック基材の直接上方にあり、且つ前記第1のエピタキシャル金属層が前記モノリシック基材の前記多孔質部分と直接接触している、請求項1に記載の層状構造。
- 前記多孔質部分が、水平に、垂直に、又は別の次元で、異なる位置に分布される少なくとも第1の領域及び第2の領域を有し、且つ前記第1の領域及び前記第2の領域が異なる多孔性を有する、請求項1に記載の層状構造。
- 前記モノリシック基材と前記第1の金属層との間の第1の希土類酸化物層
をさらに含む、請求項1に記載の層状構造。 - 前記第1の金属層が前記第1の希土類酸化物層の上面の一部分を被覆し、且つ前記第1の金属層が、間に前記第1の希土類酸化物層がある状態で、前記モノリシック基材の前記多孔質部分と一直線に並ぶ、請求項7に記載の層状構造。
- 前記第1の半導体層の上方の第2の半導体層と、
前記第2の半導体層の上方の第2の金属層と
をさらに含む、請求項1に記載の層状構造。 - 前記モノリシック基材の上方にある非連続的希土類層をさらに含み、前記非連続的希土類酸化物層が、前記非連続的希土類酸化物層の他の部分の中で少なくとも空領域を有する、請求項1に記載の層状構造。
- 前記第1のエピタキシャル金属層が前記空領域中に充填される、請求項10に記載の層状構造。
- 前記第1の半導体層が、前記第1のエピタキシャル金属層及び前記非連続的希土類酸化物層の前記他の部分によって充填される前記空領域の上方にあり、且つ前記層状構造が、前記第1の半導体層の上方にある第2の半導体層をさらに含む、請求項11に記載の層状構造。
- 前記第1の半導体層が、前記空領域中、及び前記第1の金属エピタキシャル層の上方に位置し、且つ前記層状構造が、前記第1のエピタキシャル金属層の上部の前記第1の半導体層及び前記非連続的希土類酸化物層の前記他の部分によって充填される前記空領域の上方で第2の半導体層をさらに含む、請求項10に記載の層状構造。
- 前記モノリシック基材の前記多孔質部分が、前記第1の金属層と一直線に並ぶ、請求項11に記載の層状構造。
- 前記第1の半導体層の上方の第2の半導体層及び前記第2の半導体層の上方の第3の半導体層
をさらに含む、請求項1に記載の層状構造。 - 前記第1の半導体と前記第2の半導体との間、又は前記第2の半導体層と第3の半導体層との間のインターフェースが、第1の希土類酸化物副層を含む、請求項15に記載の層状構造。
- 前記インターフェースが、第1の希土類酸化物層の上方にエピタキシャル金属層をさらに含む、請求項16に記載の層状構造。
- 前記インターフェースが、前記エピタキシャル金属層の上方に第2の希土類酸化物層をさらに含む、請求項17に記載の層状構造。
- 前記第1の半導体と前記第2の半導体との間、又は前記第2の半導体層と第3の半導体層との間のインターフェースが、エピタキシャル金属層を含む、請求項15に記載の層状構造。
- 前記第1の半導体層及び前記第2の半導体層が第1のデバイス層を共同して形成し、且つ前記第2の半導体層及び前記第3の半導体層が第2のデバイス層を共同して形成する、請求項15に記載の層状構造。
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US16/257,707 US11495670B2 (en) | 2016-09-22 | 2019-01-25 | Integrated epitaxial metal electrodes |
PCT/EP2020/051693 WO2020152302A1 (en) | 2019-01-25 | 2020-01-23 | Integrated epitaxial metal electrodes |
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US10418457B2 (en) * | 2016-09-22 | 2019-09-17 | Iqe Plc | Metal electrode with tunable work functions |
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