For the first time, based on the high crystalline quality of n-GaN on Si template, highly efficient InGaN/GaN LEds grown on 4-inch silicon substrates comparable to those on sapphire substrates have been successfully d...
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ISBN:
(纸本)9781557529107
For the first time, based on the high crystalline quality of n-GaN on Si template, highly efficient InGaN/GaN LEds grown on 4-inch silicon substrates comparable to those on sapphire substrates have been successfully demonstrated. At driving current of 350 mA, the overall output power of 1 × 1 mm 2 LEd chips exceeded 420 mW and forward voltage was 3.2 V under un-encapsulated condition, which is the best value among the reported values of blue LEd grown on Si substrates. The internal quantum efficiency of 76% at injection current of 350 mAwas measured.
At the beginning of this decade, in early 2000, few disruptive technologies had been proposed to replace the industry standard Non-Volatile Memory (NVM) technology and to enlarge the Flash application base. A widely a...
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At the beginning of this decade, in early 2000, few disruptive technologies had been proposed to replace the industry standard Non-Volatile Memory (NVM) technology and to enlarge the Flash application base. A widely accepted statement was that if any technology will succeed, it will materialize in the next decade. As the end of this decade is approaching it can be noted that only one of the proposed technologies is demonstrating the capability to enter the broad NVM market and to be a mainstream memory for the next decade: the Phase Change Memory technology. PCM provides a new set of features interesting for novel applications, combining features of NVM anddrAM and being at the same time a sustaining and a disruptive technology.
An industry-wide trend has become evident in recent years that the rapiddeployment of MEMS system products into mobile phones and consumer electronics generates the paramount driving force from evolution to revolutio...
An industry-wide trend has become evident in recent years that the rapiddeployment of MEMS system products into mobile phones and consumer electronics generates the paramount driving force from evolution to revolution in manufacturing efficiency as well as supply chain and cost structures besides beside continuous improvement in product design and *** "CMOS-MEMS" is no doubt recognized widely as the central scene of future advance and growth the MEMS industry, while implicating even a broad and profound stretch again from the Moore's Law.
Crystal structure change with the temperature was investigated for 3 m-thick (100)/(001)-oriented epitaxial PbTiO3 films grown on SrTiO3 substrates. Complex strain-relaxeddomain structure labeled as Type III was obse...
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Crystal structure change with the temperature was investigated for 3 m-thick (100)/(001)-oriented epitaxial PbTiO3 films grown on SrTiO3 substrates. Complex strain-relaxeddomain structure labeled as Type III was observed anddirectly transformed to the cubic phase at about 490°C. This transition temperature and the lattice parameter (a and c- axes) change with the temperature well agreed with the reporteddata for the PbTiO3 powders. The volume fraction of the (001) orientations, Vc, was almost independent of the temperature up to the phase transition temperature. The tilting angles of the spots in Xrd plan view were almost the same with the estimated ones from the lattice parameters and the Vc. This suggests that the angle of the domains identified by the domain structure in Type III. This structure is mainly determined by the tetragonality, (c/a ratio) and the Vc.
A multiphysics model for Phase Change Memory (PCM) is calibrated on a large set of experimental data. Critical material and interface properties such as electrical and thermal resistivities and theirdependence on tem...
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A multiphysics model for Phase Change Memory (PCM) is calibrated on a large set of experimental data. Critical material and interface properties such as electrical and thermal resistivities and theirdependence on temperature are extracted from data or fitting electrical characteristics with numerical simulations. The model is shown to match with a unique set of parameters experimental data from 90 nm and 45 nm technology nodes. The calibrated model is then exploited to perform a sensitivity analysis of key cell characteristics to geometry and material properties variations. Furthermore, the model is used to predict performance of a scaleddown cell suitable for the 32 nm technology node and the results demonstrate the consistent scalability of PCM with respect to the technology node.
Incorporation of platinum (Pt) into nickel silicide (NiSi) improves the reliability and thermal stability of electrodes in Si MOSFETs. Increasing the Pt content is desirable for further scaled CMOS, but incorporation ...
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Incorporation of platinum (Pt) into nickel silicide (NiSi) improves the reliability and thermal stability of electrodes in Si MOSFETs. Increasing the Pt content is desirable for further scaled CMOS, but incorporation of more Pt would tremendously increase the material cost. In addition, since Pt is one of the key materials for eco-technology such as catalyst for exhaust absorption and so on, reduction of the use of Pt whose amount is limited is essential for ecology. recently palladium (Pd), which has similar chemical properties to those of Pt, has been attracting interest as a substitute of Pt. Several works have pointed out that NiPdSi bulk film has superior thermal stability to NiSi. However, its potentiality in fully integrated CMOS devices has not been studied yet. In this work, we investigate the detailed properties of NiPdSi on fully integrated CMOS structures fabricated with the advanced process technology as a candidate of the alternative silicide material for NiPtSi.
In this paper we present a testbed for the functional and performance verification and validation of product level overlay multicast (or ALM in short) applications which is a complex task due to humongous test pattern...
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In this paper we present a testbed for the functional and performance verification and validation of product level overlay multicast (or ALM in short) applications which is a complex task due to humongous test patterns. Structured, systematic and simplified test environment is vital for product level quality validation. The key features of this testbed are network emulation, automated test scenario execution, log collection and testbed/real environment interconnectivity. The testbed uses StarBEd as its mother testbed and netem as the network emulator. The key contributions of this work are calibration of netem in term of network emulation and establishing an architecture to use netem and StarBEd for ALM system verification. The calibration of netem was carried out up to 30 pipes (logical links) and the results show the network emulation can be done at maximum 1.2% packet loss. One of the simple ALM verification experiments executed on the testbed took only 43 hours for execution completion compared to human execution which would take 15 weeks.
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