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A novel compact model for on-chip stacked transformers is presented.The proposed model topology gives a clear distinction to the eddy current,resistive and capacitive losses of the primary and secondary coils in the substrate.A method to analytically determine the non-ideal parasitics between the primary coil and substrate is provided.The model is further verified by the excellent match between the measured and simulated S-parameters on the extracted parameters for a 1:1 stacked transformer manufactured in a commercial RF-CMOS technology. 相似文献
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This paper presents a novel scheme to incorporate quantum effect in classical hydrodynamic model. The scheme can be applied to multi-dimensional and transient conditions and no additional equations are required to solve quantum potential, so complexity of equations is drastically reduced. Simulation results show consistent with that of Monte Carlo simulation. This technology provides an efficient method for investigating quantum effect in small size semiconductor devices. A new guess method for hydrodynamics model has also been proposed in this paper and a 2D hydrodynamic simulator based on quantum correction and new initial guess method has been developed. The solution obtained from DD model gives a good initial guess of HD model. Its advantage is it can achieve convergence after a few iterations because initial guess is closed to final solution. Two-dimensional simulations have been carried out on a few nanoscale devices. The results have been compared with that of other initial guess methods and the significant differences have been found, especially in numerical stability. 相似文献
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辐照诱发CMOS电路器件间漏电流的理论研究 总被引:1,自引:1,他引:0
应用解析分析和TCAD器件模拟研究了CMOS电路中由辐照诱发的器件间漏电流问题。以往报道中对于场氧化层中陷阱电荷沉积进而导致寄生漏电流通道开启的物理过程存在若干不同观点,本文中针对这些矛盾点入手,在理论分析中考虑电场强度、氧化层厚度和掺杂浓度随深度的变化,而不仅仅是针对单一变量进行分析。在所有可能的器件间漏电流通道中,以N型阱作为漏区和源区的寄生结构在源漏间存在电压差时相对其他寄生结构对总剂量效应更敏感。但考虑到电路实际工作中N阱区通常接相同电源电平,所以该类寄生结构不会恶化实际CMOS电路的总剂量效应敏感性。总的来说,存在于实际电路中、并且在实际工作中仍然需要考虑的器件间漏电流通道对总剂量效应并不十分敏感(< pA)。 相似文献
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Feilong Ding Baokang Peng Xi Li Lining Zhang Runsheng Wang Zhitang Song Ru Huang 《半导体学报》2022,43(2):51-64
Phase change memory(PCM)attracts wide attention for the memory-centric computing and neuromorphic comput-ing.For circuit and system designs,PCM compact models are mandatory and their status are reviewed in this work.Macro mod-els and physics-based models have been proposed in different stages of the PCM technology developments.Compact model-ing of PCM is indeed more complex than the transistor modeling due to their multi-physics nature including electrical,thermal and phase transition dynamics as well as their interactions.Realizations of the PCM operations including threshold switching,set and reset programming in these models are diverse,which also differs from the perspective of circuit simulations.For the purpose of efficient and reliable designs of the PCM technology,open issues and challenges of the compact modeling are also discussed. 相似文献
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A two-dimensional (2D) physical compact model for advanced power bipolar devices such as Injection Enhanced Gate Transistor (IEGT) or Trench IGBT is presented in this paper. In order to model the complex 2D nature of these devices, the ambipolar diffusion equation has been solved simultaneously for different boundary conditions associated with different areas of the device. The IEGT compact model has been incorporated into the SABER simulator and tested in standard double-pulse switching test circuit. The compact model has been established to model a 4500 V-1500 A flat pack TOSHIBA IEGT. 相似文献
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为了提高微波功率测量的准确性,文中将平面电磁波作用于霍尔器件,用解析方法得到了霍尔电压的直流分
量与微波功率密度之间的线性关系。基于同轴线设计了通过式与吸收式两种型号的微波功率探测器。以同轴通过式
为例,在0.1 mW~50.0 mW 的微波功率测量范围内,探测器的线性度达98.28%,瞬态响应时间为3 μs~6 μs,频率响应
范围为1 GHz~10 GHz。实验结果与理论分析结果一致,该新型探测器具有线性度好和响应速度快的特点,有望得到更
为广泛的应用。 相似文献
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锑化铟锭条的全自动霍耳效应测试系统 总被引:1,自引:1,他引:0
为了解决InSb锭条霍耳效应的测试任务‘研制出一套微机控制的全自动测试系统,可对各种截面形状的半导体锭条进行无破坏性的霍耳效应测量。本系统包括一台HP-85型计算机和705型扫描器、220型恒流源以及195型数字多用表,一个自制的多功能测试单元。本文叙述了系统的测量原理,分析了系统中各部分仪器和机构的连接配合控制及其具有的功能,介绍了抗干扰问题的解决方法并进行了误差分析。进行了大量的室温下的测量,并与本征理论值比较,证明系统的测量精度与误差分析是相一致的。此系统大大提高了InSb锭条的测量速度和精度,是研究InSb材料(包括其他半导体材料)十分有用的工具。 相似文献
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This paper presents a compact two-dimensional analytical device model of surface potential, in addition to electric field of triple-material double-gate (TMDG) tunnel FET. The TMDG TFET device model is developed using a parabolic approximation method in the channel depletion space and a boundary state of affairs across the drain and source. The TMDG TFET device is used to analyze the electrical performance of the TMDG structure in terms of changes in potential voltage, lateral and vertical electric field. Because the TMDG TFET has a simple compact structure, the surface potential is computationally efficient and, therefore, may be utilized to analyze and characterize the gate-controlled devices. Furthermore, using Kane's model, the current across the drain can be modeled. The graph results achieved from this device model are close to the data collected from the technology computer aided design (TCAD) simulation. 相似文献
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分析了功率器件寿命预测研究现状,并通过恒定应力加速寿命试验来提取器件失效参数,利用正态分布统计方法提取Coffin-Manson寿命预测模型参数建立功率器件寿命预测模型并进行分析。结果表明,模型参数拟合值和实测值的相关系数均在96.8%以上,试验结果满足正态分布统计,说明得到的模型参数是有效的。模型在ΔTj为70.5℃下仿真值与试验值的相对误差为2.768%,证明了该模型的可行性和准确性。 相似文献
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A new quite simple analytical model based on the charge allocating approach has been proposed to describe the breakdown property of the RESURF (reduced surface field) structure. It agrees well with the results of numerical simulation on predicting the breakdown voltage. Compared with the latest published analytical model, this model has a better accuracy according to the numerical simulation with simpler form. The optimal doping concentration (per unit area) of the epi-layer of the RESURF structures with different structure parameters has been calculated based on this model and the results show no significant discrepancy to the data gained by others. Additionally the physical mechanism of how the surface field is reduced is clearly illustrated by this model. 相似文献
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A compact Ids model with physical drain-conductance (gds) modeling for deep-submicron MOSFETs is formulated based on first-principle momentum-/energy-balance equations, which simultaneously includes the hot-electron and thermoelectric effects in a unified compact form with two fitting parameters and one-step extraction. The model has been verified with 0.18-μm experimental data with good gds prediction. 相似文献
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An analytical model of the electric field distributions of buried superjunction structures,based on the charge superposition method and Green’s function approach,is derived.An accurate approximation of the exact analytical model of the vertical electric field is also proposed and demonstrated by numerical simulation.The influence of the dimension and doping concentration of each layer on the electric field is discussed in detail,and the breakdown voltage is demonstrated by simulations. 相似文献
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A new quite simple analytical model based on the charge allocating approach has been proposed to describe the breakdown property of the RESURF (reduced surface field) structure. It agrees well with the results of numerical simulation on predicting the breakdown voltage. Compared with the latest published analytical model, this model has a better accuracy according to the numerical simulation with simpler form. The optimal doping concentration (per unit area) of the epi-layer of the RESURF structures with different structure parameters has been calculated based on this model and the results show no significant discrepancy to the data gained by others. Additionally the physical mechanism of how the surface field is reduced is clearly illustrated by this model. 相似文献
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A CMOS UV and blue-extended photodiode is presented and fabricated for light detection in the ultraviolet/blue spectral range. An octagon homocentric ring-shaped geometry is used to improve the ultraviolet responsivity and suppress edge breakdown. This paper has established a two-dimensional responsivity physical model for the presented photodiode and given some numerical analyses. The dead layer effect, which is caused by the high-doping effects and boron redistribution, is considered when analyzing the distribution of the current of the proposed UV and blue-extended photodiode. In the dead layer, the boron doping profile decreases towards the surface. Simulated results illustrate that the responsivity in the UV range is obviously decreased by the effect of the dead layer, while it is not affected in the visible and near-infrared part of the spectrum. The presented photodiode is fabricated and the silicon tested results are given, which agree well with the simulated ones. 相似文献
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A comparison of measurement techniques for determining phosphorus densities in semiconductor silicon
W. Robert Thurber 《Journal of Electronic Materials》1980,9(3):551-560
Phosphorus densities in semiconductor silicon slices cut from 14 single crystal ingots have been determined by two electrical
and two analytical techniques. Hall effect measurements were made on specimens from all ingots, and junction capacitance-voltage
measurements were made on specimens with densities up to about 5 × 1017 cm−3. Neutron activation analysis was used to measure phosphorus densities from 5 × 1015} to 5 x 1019} cm−3, and a photometric technique was used for densities greater than 1017 cm−3. A systematic discrepancy of about 15% between the photometric and neutron activation data is indicative of the interlaboratory
agreement that might be realized in practice with these techniques.
This work was conducted as part of the Semiconductor Technology Program at NBS and was supported by the Defense Advanced Research
Projects Agency (Order 2397). Not subject to copyright. 相似文献