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A transition from planar to FinFET brings additional variability sources from 3D channel structure. In this study, the impact of fin shape variability on device performance, especially from the view point of short channel effect control, is investigated with using Si-validated TCAD. This reveals that the width, height and taper angle of fin have significant impact on the electrostatics of the device...
We fabricated 〈100〉, 〈110〉, 〈111〉, and 〈112〉 p-channel gate-all-around Si nanowire (SiNW) MOSFETs, cross sections of which are rectangles with various widths, and investigated the hole mobility of the SiNW MOSFETs using the double Lm method. Measured hole mobilities of SiNW MOSFETs were about 80–140 cm2/Vs at surface carrier density of 1 × 1013 cm−2. The dependences of the hole mobility on orientations...
A new production ready compact model for future FinFETs is presented. This single unified model can model FinFETs with realistic fin shapes including rectangle, triangle, circle and any shape in between. New mobility models support Ge p-FinFETs and InGaAs n-FinFETs. A new quantum effects model enables accurate modeling of III–V FinFETs. Special attention is paid to shape agnostic short-channel effect...
The results of experimental investigation of formation features of the 3D boss with embedded V-groove for the optic fber, comprised in optomechanical part of MOEMS photovoltaic pressure sensor are presented. Dependences of ratio change of length of edges <110> and <410> forming underetching compensators of convex corners of the chip have been obtained. To provide good quality of the boss...
Lung cancer is mainly diagnosed by the identification of malignant nodules in the lung parenchyma. For that purpose, the identification of all the possible structures that could be suspicious of lung nodules became a crucial task in any lung cancer computer aided diagnosis (CAD) system. In this paper, a new approach for lung nodule candidate identification is proposed. This method uses a 3D medialness...
Sonar performance prediction and detection analysis rely on statistical models for noise, reverberation and signal. Often the central limit theorem is exploited to simplify the modeling. For example, noise and reverberation can be represented by a Gaussian distribution (i.e., Rayleigh-distributed envelope) when they arise from a multitude of sources. Signal models are often limited to the extremes...
In order to realize a flexible vector quantizer with a large codebook but low complexity we consider a system which consists of a nonlinear mapping (compressor), a lattice vector quantizer, and the inverse of the compressor (expander). In general, the nonlinear expansion of the Voronoi regions of the lattice will increase their normalized second moments and hereby cause a loss. Recently, we derived...
The synthesis of optimal pulse shapes for digital data transmission over communication channels typically involves conflicting specifications. We consider the problem of finding a pulse satisfying some mandatory "hard" constraints while violating as little as possible the remaining "soft" constraints. The problem is formalized as that of minimizing a weighted sum of squared distances...
We study the 3D neurite tracing problem in different imaging modalities. We consider that the examined images do not provide sufficient contrast between neurite and background, and the signal-to-noise ratio varies spatially. We first split the stack into box sub-volumes, and inside each box we evolve simultaneously a number of different open-curve snakes. The curves deform based on three criteria:...
In this paper, a novel method is introduced to fabricate nanoscale silicon oxide islands array. Rectangle islands patterns with edge length less than 100 nm are fabricated by traditional contact lithography and buffered oxide etching process. Precise sacrificial layer etching technique is used to control the size of islands from micro-scale to nanoscale accurately. This fabrication method is CMOS...
In this paper, the study on fabricating silicon microchannel with high-density small-scale microisland arrays by one-step anisotropic wet etching process has been presented. Two different kinds of compensating masks were elaborately designed, one is consist of a series traditional T-shape compensating patterns arranged by cross-compensating method; the other is formed by a series of square-slits aligned...
After a piece of information is released in Online Social Networks (OSNs), will it spread to the entire network or reach only a small population of users? In a time window of interest, how many users will forward or comment on this information? Limited effort has been made at this point to develop an effective model to address these issues, as the timesensitive nature of information spreading and...
Constructing a two dimensional shape from a given set of point sites is a well-known problem in computational geometry. We present a critical review of the existing algorithms for constructing polygonal shapes from given point sites. We present a new approach called 'inward denting' for constructing polygonal shapes. We then extend the proposed approach for modeling polygons with holes. We also present...
In this paper, a conception of Dep-Etch-Dep was proposed to extend the gap-fill capability of High Aspect Ratio Process (HARP) for Shallow Trench Isolation (STI) at 28nm node. Silicon oxide liner deposited by Atom Layer Deposition (ALD), which has no loading effect, can enlarge the process window. After the deposition of silicon oxide liner, an available multi-cycles SiCoNi dry etch process was applied...
To obtain a defect free and dislocation free during SiGe deposition is the key for improving hole carrier mobility for 40 nm technology node and beyond. This paper presents a methodology to eliminate SiGe dislocation. The key step is to introduce SF6 during Si trench surface treatment after Si trench main etch.
The advancement of package technology to enable die to die interconnects have allowed Integrated Circuit (IC) technology to progress into much higher density region. The fabrication process requires wafers to be processed at lower thicknesses while bonded to a carrier. The forces applied to the thin wafer often generate localized stress fields that cause Si defects to propagate in a form of cracks...
This paper presents a novel self-starting low-voltage step-up DC-DC converter for energy harvesting from ultra-low-power and low-voltage energy sources. The proposed structure consists of two stages: the first stage is an autonomous oscillator, which provides the self-start-up capability with low-input voltages, and the second stage is a controllable reverse conventional buck-boost converter. The...
A new kind of ball tensegrity robot is researched. Firstly, build up mathematical model of ball tensegrity robot with its node matrix and member matrices. Based on the relationships between the nodes and members, the connectivity matrices are introduced. Then members can be expressed by connectivity matrix and node matrix. Under given external load, system equilibrium functions are set up, and we...
While enhancing the intensity or saturation component for high-quality color enhancement, keeping the hue component unchanged is important; thus, perceptual color models such as HSI and HSV were used. Hue-Saturation-Intensity (HSI) is a public color model, and many color applications are commonly based on this model. However, the transformation from the conventional HSI model to RGB model usually...
A stilbene crystal was coupled to a silicon photomultiplier (SiPM) to assess the performance of the detector's pulse shape discrimination (PSD) between fast neutrons and gamma rays. Pulses were digitized from a measurement of Cf-252 and digital charge comparison was used to perform PSD. The stilbene crystal was then coupled to a photomultiplier tube (PMT) and the measurement was repeated. The PSD...
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