Investigation Of Oxide Thickness Dependence Of Fowler-Nordheim Parameter B

During recent years the thickness of the gate oxide has been reduced considerably. The progressive miniaturization of devices has caused several phenomena to emerge such as quasi-breakdown, direct tunneling and stress induced leakage currents. Such phenomena significantly modify the performance of the scaled-down MOSFETs. As a part of this research work, an effort has been made to study the performance and characteristics of the thin Gate oxide for MOSFETs and Tunnel Oxide for Floating Gate (FG) MOS devices. The exponential dependence of tunnel current on the oxide-electric field causes some critical problems in process control. A very good process control is therefore required. This can be achieved by finding out the exact value of F-N tunneling parameter. This research work also is an effort of finding an accurate value for parameter B and its dependence on the oxide thickness as the device are scaled down to a level where the probability of Direct Tunneling mechanism gains more prominence. A fully automated Low Current Measurement workstation with noise tolerance as low as 10-15 A was set up as a part of this research. C-V and I-V curves were analyzed to extract, determine and investigate the oxide thickness dependence of F-N parameter B. For oxide thickness in the range10~13 nm, the parameter B ranged between 260 and 267. Thus it can be said that it is not sensitive to the change in oxide thickness in this range. However it was noticed that for thickness around 7nm wide variety of results were obtained for the Fowler-Nordheim parameter B (B ranged from 260 to 454). This can be attributed to the enhancement in the leakage current due to the direct tunneling. Hence to have tight control over VT for a NVM, new algorithms need to be developed for even better process control for oxide thickness in the range of 7 nm and below

Optimizing Jython using invokedynamic and Gradual Typing

Compilers for statically typed languages such as C/C++ and Java use the types from the program to generate high performance code. Although the runtimes of dynamically typed languages such as Python, Ruby and Javascript have evolved significantly over the past few years; they have not yet reached the performance of their statically typed counterparts. A new type system called gradual typing has been proposed in which the program can optionally be annotated with type information. In this thesis, I implement gradual typing in Jython (an implementation of Python language for the Java virtual machine) and generate type-specialized code. Also, I use invokedynamic, a new byte code introduced in Java 7, to implement optimizations in Jython; both in an effort to close the gap between Java and Jython in particular and statically type and dynamically typed language in general

Invasive cutaneous mucormycosis in a preterm neonate presenting as a vesicobullous lesion

Mucormycosis is a relatively rare fungal infection seen in immunocompromised patients. Very few cases of invasive cutaneous mucormycosis occurring in neonates have been reported in literature. It is an aggressive disease with a mortality rate of around 64% in neonates, so a high index of suspicion is essential for rapid diagnosis and definitive treatment with broad-spectrum antifungals such as Amphotericin B. We present a case of a premature infant born at 25 weeks of gestation who developed vesicobullous lesions all over the body on day 5 of life. Biopsy from the vesicles confirmed the presence of angioinvasive fungal hyphae of mucormycosis which were highlighted on Periodic acid-Schiff and Grocott stain

Primary cutaneous B-cell lymphomas: Case report of two cases

Primary cutaneous lymphomas are a unique, heterogeneous group of lymphoproliferative disorders which have a primary cutaneous manifestation in the absence of systemic involvement of lymph nodes, bone marrow, or visceral organs at the time of diagnosis. Among the primary cutaneous lymphomas, B-cell lymphoma is much less common and accounts for 20%–25% of cases. Primary cutaneous diffuse large B-cell lymphomas (PCDLBCLs) are aggressive neoplasms with poor prognosis. Early and accurate diagnosis is required as these patients respond well to systemic anthracycline-based chemotherapy (R-CHOP). In this article, we report two cases of PCDLBCL, other which presented with rapidly enlarging skin nodules and were diagnosed based on clinical features, histomorphology, and characteristic immunohistochemical expression. Both the patients were treated with systemic chemotherapy and responded well. During the 6 months' follow-up period, the lesions regressed. The patients are symptom free with no evidence of disease relapse or dissemination to extracutaneous sites

Inbound Shipment Coordination

Presented on December 12, 2012 from 6:00 PM – 7:30 PM in the Klaus Advanced Computing Building, room 1443 on the Georgia Tech campus.Best of Senior Design Fall 2012 Finalist Presentations.Runtime: 15:52 minutesThe team worked with The Home Depot to reduce its inbound transportation cost by building an optimization model that created multi-stop truck routes. These routes were then consolidated to form groups of frequently combined vendors. The developed tool could save the company over $9M/year.Huo, Xiaomin