NUMERICAL SIMULATION AND ANALYSIS OF TRANSIENT CURRENT COLLAPSE IN GAN HEMTS
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, ELECTRONICS AND COMMUNICATION
Author(s): CHANGTAI ZHU , ZHIJIONG WANG , JIN HE , GUOQING HU , HUAYU KANG
Abstract: Gallium Nitride (GaN)-based high electron mobility transistors (HEMTs) are emerging as promising contenders to replace existing Silicon and Gallium Arsenide (GaAs) devices in the radio-frequency/microwave power amplifiers and high-power switching applications. In this paper, the 2- D numerical simulations of AlGaN/GaN high electronmobility transistor (HEMT) were carried out and analyzed to investigate the transient current collapse phenomena. The coupling between trapping effect and thermal effect were taken into account in our simulation. The turn-on pulse gate-lag transient responses with different quiescent biases were obtained, and the pulsed current-voltage (I-V) curves were extracted from the transients. The experimental results of both gate-lag transient current and pulsed I-V curves were reproduced by the simulation. These study results will help more device researchers and circuit designers understand HEMT device physics and reliability design
- Publication Date: 15-Sep-2019
- DOI: 10.15224/978-1-63248-176-4-06
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MODELING VIETNAMESE REPURCHASE INTENTION TOWARD KOREAN COSMETICS
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN ECONOMICS, SOCIAL SCIENCE AND HUMAN BEHAVIOUR STUDY
Author(s): DINH LUAN , NGUYEN , TRAN LE , VAN KIEN , PHAM
Abstract: This paper aims at modeling the repurchase intention (RI) via three factors namely Word of mouth (WOM), Perceived price (PP), and Country of origin (COO). We also attempt to examine the mediating role of WOM in the relationships among PP, COO and PI. We use the case of Vietnamese consumers to see their repurchase intention toward Korean cosmetics. Methodology In order to complete the proposed purpose, this paper collects the primary data from Vietnamese consumers who have been using cosmetic products made in Korea. The collected data is processed by Structural Equation Modeling (SEM) approach with the aid of SPSS and AMOS software. Findings the results show that WOM plays the role of a mediator very well in the relationships among PP, COO, and PI. Particularly, without WOM COO does not indicate any influence on PI while PP presents some small effects. Therefore, WOM fully mediates the relationship between COO and RI, while partially mediates the relationship between PP and RI. Practica
- Publication Date: 21-Jul-2019
- DOI: 10.15224/978-1-63248-175-7-05
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- Downloads: 0