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Non-Plasma-Based Technologies to Augment Backend Processing in Future ULSI
Rajiv O. Dusane 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.3
The solution to the problem of increased resistance-capacitance (RC) delay in the present day ULSI is to use porous low-k dielectric films (k = 2.0) along with Copper interconnects. There are a number of issues with Cu/low-k integration, such as Cu diffusion in the porous low-k film, moisture penetration, and damage during backend processing steps like etching and photoresist ashing. Water vapor is introduced into the low-k layer during ashing of the photo resist, which raises the k value to typically above 3. We have successfully addressed all these issues in the case of hydrogen silsesquioxane (HSQ) (k = 2.8) with the help of a non-plasma-based hot-wire-induced chemical-vapor process (HWCVP). With the help of this process, we have also been successful in developing an ultra-thin hydrogenated amorphous silicon-carbon-based barrier layer that completely avoids copper diffusion and shows a higher resistance to electromigration.nPa
Sunil Kumar Singh,R. O. Dusane,Alka A. Kumbhar,W. Bock 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.3
Hydrogen-plasma-induced surface modification of spin-on hydrogen silsesquioxane (HSQ) thin films has been studied with a view to understand the various physical and chemical aspects of the process. An extensive characterization of the chemical structure, the surface topography and the surface wettability has been carried out. A copper diffusion study has also been done by employing secondary ion mass spectrometry. The results give new insights into the mechanism of the observed decrease in the leakage current of the HSQ films after hydrogen plasma treatment.
Ankur Soam,Pravin Kavle,Alka Kumbhar,Rajiv O. Dusane 한국물리학회 2017 Current Applied Physics Vol.17 No.2
Fabrication of high performance micro-supercapacitor (m-SC) based on Silicon nanowires (SiNWs) at low temperatures by simple, effective and a scalable technique is always desired. In this regard, the performance of the m-SC was greatly improved by employing a novel architecture developed by coating SiNWs with Graphene (rGO) in the present work. This coating of Graphene was deposited by an easy and efficient technique, Electrophoretic Deposition (EPD), at the room temperature with no intricate steps. These rGO coated SiNWs electrodes show as much as four times larger capacitance (240 mF/cm2) than the bare SiNWs (60 mF/cm2). Moreover, the key advantage of the architecture is that both rGO and SiNWs structurally complement each other enhancing the electrode performance - EPD deposited rGO fills the empty space between SiNWs by making a bridge type structure, increasing the surface area of the electrodes whereas SiNWs prevent restacking and aggregation of the rGO nano-sheets and also provide support to rGO nano-sheets to stand vertically over the substrate. One more notable bonus of using EPD technique is that the wires are selectively coated. SiNWs were synthesized at a temperature of 320 C by the Hot-wire assisted SiNW growth technique and deposition of Graphene oxide (GO) and its reduction into reduced Graphene oxide (rGO) was carried out at the room temperature. The results suggest that rGO coated SiNWs could be a promising candidate as an electrode for on-chip integrable m-SC application.
( Dusan Baek ),( Byungjeong Lee ),( Jung-won Lee ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.3
Because of the properties of software such as invisibility, complexity, and changeability, software configuration management (SCM) for software artifacts generated during software life-cycle has been used for guarantee of the quality of the software. However, the existing SCM system has only focused on code artifacts and software development document artifacts such as Software Requirements Specification (SRS), Software Design Description (SDD), and Software Test Description (STD). Moreover, software research-oriented project comes out late the code artifacts and the software development document artifacts. Therefore, there is a need for trace and management of software research document artifacts composed of highly abstracted non-functional requirements like `the purpose of the project`, `the objectives`, and `the progress` before generation of the code artifacts and the software development document artifacts for a long time. Nevertheless, the existing SCM system cannot trace and manage them. In this paper, we propose content-based configuration management system comprised of the relevance link generation phase and content-based testing phase to trace and manage them. The preliminary application results show applicability and feasibility of the proposed system.
An Overview of Molecular Biology and Biotechnology
Dusanic,Donald G. INSTITUTE OF TROPICAL MEDICINE YONSEI UNIVERSITY 1989 YONSEI REPORTS ON TROPICAL MEDICINE Vol.20 No.1
Nucleic acids and protein synthesis are briefly reviewed as a basis for a discussion of the concepts and applications of cellular and molecular genetics. Procedures of recombinant DNA and hybridoma technologies are described in more detail because of their importance to research un parasites and the biotechnology industry.
Biotechnology and the Parasitic Protozoa
Dusanic,Donald G. INSTITUTE OF TROPICAL MEDICINE YONSEI UNIVERSITY 1989 YONSEI REPORTS ON TROPICAL MEDICINE Vol.20 No.1
Recent applications of biotechnology to research on parasitic protozoa are providing insights into the mechanisms of parasite development and antigenicity. They may lead to the development of vaccines and sensitive and specific diagnostics. Heat shock proteins, the polymerase chain reaction, and serological procedures employing Fabs of antibodies may find applications to the protozoan parasites.
ISG15: leading a double life as a secreted molecule
Dusan Bogunovic,Ste´phanie Boisson-Dupuis,Jean-Laurent Casanova 생화학분자생물학회 2013 Experimental and molecular medicine Vol.45 No.4
ISG15 is a well-known intracellular ubiquitin-like molecule involved in ISGylation. However, a recent study has revived the notion first put forward two decades ago that ISG15 is also a secreted molecule. Human neutrophils, monocytes and lymphocytes can release ISG15, even though this protein has no detectable signal peptide sequence. ISG15 has also been found in the secretory granules of granulocytes. The mechanism underlying ISG15 secretion is unknown. Secreted ISG15 acts on at least T and natural killer (NK) lymphocytes, in which it induces interferon (IFN)-c production. However, the mechanism by which ISG15 stimulates these cells also remains unclear. ISG15 and IFN-c seem to define an innate circuit that operates preferentially, but not exclusively, between granulocytes and NK cells. Inherited ISG15 deficiency is associated with severe mycobacterial disease in both mice and humans. This infectious phenotype probably results from the lack of secreted ISG15,because patients and mice with other inborn errors of IFN-c immunity also display mycobacterial diseases. In addition to raising mechanistic issues, the studies described here pave the way for clinical studies of various aspects, ranging from the use of recombinant ISG15 in patients with infectious diseases to the use of ISG15-blocking agents in patients with inflammatory diseases.
The Effect of Population-Level Learning on Entry Likelihood in the Mobile Game Industry
Dusan Seong,김상순 한국마케팅학회 2020 ASIA MARKETING JOURNAL Vol.21 No.4
Population-level learning has traditionally been used to provide an explanation for the underlying mechanism of industry change. But it has yet to examine the impact on strategic decisions such as market entry. This conceptual paper aims to provide an insight into how population-level learning affects entry likelihood by acting as a tool for interpreting population-level changes. We study this in the context of the fast-paced mobile gaming industry where population-level information is salient and develop a set of propositions with regard to the likelihood of entry.