Nb2O5-Al2O3 nanolaminate films have been grown by atomic layer deposition using (Nb(OC2H5)5)/H2O, and Al(CH3)3/H2O precursors, respectively. Effect of rapid thermal annealing (RTA) on the optical properties of the nan...
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ISBN:
(纸本)9781424457977
Nb2O5-Al2O3 nanolaminate films have been grown by atomic layer deposition using (Nb(OC2H5)5)/H2O, and Al(CH3)3/H2O precursors, respectively. Effect of rapid thermal annealing (RTA) on the optical properties of the nanolaminate has been studied using Fourier transform infrared spectroscopy (FTIR), and spectroscopic ellipsometry. From the FTIR result, Al2O3 suppresses the formation of interfacial layer during RTA. The refractive index of the ND2O5-Al2O3 films is found to increase after the RTA at 500 ℃, while decrease with the RTA temperature above 500 ℃. Moreover, the optical band gap of Nb2O5 film deduced from the extinction coefficient shows a gradual increase with increasing annealing temperature, which is related to a decrease in the film disorder.
Nickel silicide formation on Si(110) substrate is investigated in this paper. Comparing with the samples fabricated on Si(100) substrate, it is revealed that a higher annealing temperature is required for NiSi formati...
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ISBN:
(纸本)9781424458660;9781424458691
Nickel silicide formation on Si(110) substrate is investigated in this paper. Comparing with the samples fabricated on Si(100) substrate, it is revealed that a higher annealing temperature is required for NiSi formation on Si(110) substrate. X-ray diffraction and atomic force microscopy were employed for further material analysis. NiSi/Si(110) Schottky contacts were also fabricated for electrical characteristics evaluation. The formation kinetics for nickel silicidation on Si(110) substrates was also discussed in this paper.
PIN tunneling field effect transistor (TFET) is one of the most promising devices due to its low sub-threshold swing. In this paper, using TCAD simulation, we investigate the doping and structure dependence of the ele...
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ISBN:
(纸本)9781424457977
PIN tunneling field effect transistor (TFET) is one of the most promising devices due to its low sub-threshold swing. In this paper, using TCAD simulation, we investigate the doping and structure dependence of the electric field in PIN TFET. We show that an insertion of a thin N layer into PIN structure (i.e., PNIN TFET) not only enhances the drive current but also improves the reliability of the device. We also show that the device characteristics can be further improved by properly aligning the gate electrodes with respect to the tunneling junction.
We propose a new structure of Schottky rectifier, named trapezoid mesa trench MOS barrier Schottky rectifier (TM-TMBS). By 2D numerical simulations, both forward and especially better reverse I-V characteristics, incl...
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ISBN:
(纸本)9781424457977
We propose a new structure of Schottky rectifier, named trapezoid mesa trench MOS barrier Schottky rectifier (TM-TMBS). By 2D numerical simulations, both forward and especially better reverse I-V characteristics, including higher breakdown voltage and lower leakage current, were demonstrated and explained comparing to regular TMBS as well as conventional planar Schottky rectifier.
For the integration of high-density ferroelectric random access memories, each memory cell can be formed at the cross point of a plate line and a common node electrode, where the ferroelectric film is continuous betwe...
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ISBN:
(纸本)9781424457977
For the integration of high-density ferroelectric random access memories, each memory cell can be formed at the cross point of a plate line and a common node electrode, where the ferroelectric film is continuous between them. However, the peripheral region beyond the cross point of each cell without electrode coverage could also switch under the writing/reading pulse. To avoid this crosstalk problem between adjacent memory cells, the safest distance between the cells is estimated to be 0.270.34 μm for Pb(Zr,Ti)O3 thin-film capacitors from short pulse measurements. With the shortening of the repetitive reading/wiring pulse width down to domain switching time, the capacitor with Pt electrodes is rather fatigue resistive.
This paper summarizes our recent investigations of nano-wire n type tunneling field effect transistor (n-TFET) reliability by experimental measurements and physical analysis [1-3]. Large PBTI and HC degradations which...
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The properties of ultrathin RuC film and RuC/TaN stack as the Cu diffusion barrier on Si substrate were studied. The results show that the thermal stability of the Cu/RuC/TaN/Si structure is better than that of the Cu...
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In this work, the metal gate effective work function (EWF) modulation for the TiN/Ta/TiN/SiO2/p-Si(100) structure was investigated. Comparing with TiN/SiO2/p-Si(100) structure, after annealing the introduction of Ta c...
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A model for the Symmetric Double-Gate (SDG) n-MOSFET is presented. Poisson equation is solved analytically and channel potential is obtained. The analytical expression for subthreshold swing is achieved. Model results...
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ISBN:
(纸本)9781424458660;9781424458691
A model for the Symmetric Double-Gate (SDG) n-MOSFET is presented. Poisson equation is solved analytically and channel potential is obtained. The analytical expression for subthreshold swing is achieved. Model results are compared with Medici simulations, good agreement is observed. The subthreshold swing of an SDG MOSFET will be improved by increasing the channel length, by reducing either the silicon body thickness or the gate oxide thickness, and by increasing the silicon body doping concentration.
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