217 resultados para Image de soi
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于2010-11-23批量导入
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对部分耗尽CMOS/SOI工艺进行了研究,成功地开发出成套部分耗尽CMOS/SOI抗辐照工艺。其关键工艺技术包括
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国家自然科学基金
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Silicon-on-insulator (SOI)集成光电子器件的工艺与标准CMOS工艺完全兼容,采用SOI技术可以实现低成本的整片集成光电子回路。文章回顾了近几年来SOI集成光电子器件的发展以及一些最新的研究进展。
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根据有效折射率法和光束传播法分析了大截面单模SOI脊形X型交叉波导的传输特性.指出交叉角在1.5-2°内,因导波模式引起耦合作用而导致的串音小于-25dB;采用波动光学原理分析了非对称全内反射开关导模的传输和反射特性;讨论了等离子体色散效应,pn结大注入效应以及Goos-Hanchken位移,并分析了非对我全内反射型SOI光波导开关的电学性质.据此优化设计了该器件的结构参数和电学参数.
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于2010-11-23批量导入
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MMI (multimode interference) coupler, modulator and switch based on SOI (silicon- on-insulator) have been become more and more attractive in optical systems since they show important performances. SiO2 thin cladding layers (<1.0mum) can be used in SOI waveguide due to the large index step between Si and SiO2, making them compatible with the VLSI technology. The design and fabrication of multimode interference (MMI) optical coupler, modulator and switche in SOI technology are presented in the paper. The results demonstrated that the modulator has an extinction ratio of -11.0dB and excess loss of -2.5dB, while the optical switch has a crosstalk of -12.5dB and responding time of less than 20 mus.
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In this paper, we report the fabrication of Si-based double hetero-epitaxial SOI materials Si/gamma-Al2O3/Si. First, single crystalline gamma-Al2O3 (100) insulator films were grown epitaxially on Si(100) by LPCVD, and then, Si(100) epitaxial films were grown on gamma-Al2O3 (100)/Si(100) epi-substrates using a CVD method similar to silicon on sapphire (SOS) epitaxial growth. The Si/gamma-Al2O3 (100)/Si(100) SOI materials are characterized in detail by RHEED, XRD and AES techniques. The results demonstrate that the device-quality novel SOI materials Si/gamma-Al2O3 (100)/Si(100) has been fabricated successfully and can be used for application of MOS device.