JP – Page 9 – TechConnect Briefs

Modeling of DMOS Device for High-Voltage Applications Based on 2D Current Flow

Ueno F., Tanaka A., Miyake M., Iizuka T., Yamamoto T., Kikuchihara H., Mattausch H.J., Miura-Mattausch M., Miura-Mattausch M., Hiroshima University, JP

High-voltage devices are utilized for a variety of applications, with application voltages ranging from a few volts to a few hundred volts. To develop efficient circuits for the variety of applications, accurate modeling of the [...]

Modeling of Trench-Gate Type HV-MOSFETs for Circuit Simulation

Iizuka T., Fukushima K., Tanaka A., Ueno M., Miura-Mattausch M., Hiroshima University, JP

A wide range of application has made high-voltage (HV) MOSFETs evolve into application-specific structures. Trench-gate type HV-MOSFET is one of them; its user application space tends to fall on a larger power consumption domain, compared [...]

Temperature-Controlled Molecular Dynamics Study on Velocity-Dependent Threshold Behavior of Nano-Friction

Hayashi K., Mori T., Taniguchi R., Nakamura K., Kanazawa Institute of Technology, JP

Laws of dynamic nano-friction (i.e., continuous wearless friction) were searched for under steady spatial distributions of the local quasi-temperature, by molecular dynamics (MD) simulations. The temperature control of the non-conservative model was carried out by [...]

Controlling Oxidation Reaction on Platinum by Spin Manipulation

Sison Escaño M.C., Nguyen T.Q., Nakanishi H., Kasai H., Osaka University, JP

Oxidation of metal surface is of outstanding practical importance in microelectronics, energy conversion systems and environmental devices. As an oxidation catalyst, platinum (Pt) is widely used in chemical and automotive industries. Thus far, the dissociative [...]

Quantum Chemical Molecular Dynamics Study of Oxidation Process on Fe-Cr Alloy Surfaces in High Temperature Water

Suzuki K., Miura H., Tohoku University, JP

Environmentally assisted cracking (EAC) has become the critical issue that dominates the lifetime of various metallic materials such as stainless steels used under harsh operating conditions. In the EAC process, chemical reaction of the metal [...]

Simulation of Removal of Surface-State-Related Lag and Current Slump in GaAs FETs

Hafiz H., Kumeno M., Horio K., Shibaura Institute of Technology, JP

Two-dimensional transient analysis of field-plate GaAs MESFETs is performed in which surface states are considered. Quasi-pulsed current-voltage curves are derived from the transient characteristics. It is shown that drain lag and current slump due to [...]

Characterization of Refined Beams of Neutral Free Radicals Produced by Photo-Deionization of Negative Ion Beams

Hayashi K., Tanaka F., Sugiura T., Matsuda T., Kanazawa Institute of Technology, JP

Ion-current difference measurement by light intensity modulation ( ICD ) is introduced as a convenient method to characterize a purified beam of momentum-controlled neutral free radicals produced by photo-deionization of a negative ion beam for [...]

Fabrication of controlled linear assemblies of graphite nanosheets in polysiloxane-based nanocomposite films and enhancement of thermal property

Cho H.-B., Yanahara S., Nakayama T., Suematsu H., Suzuki T., Jiang W., Tanaka S., Niihara K., Nagaoka University of Technology, JP

In the present research, we report successful control of orientation and relocation of GNs in polymer matrix using electric and magnetic fields inducing external torques. According to modulation of the external torque, GNs can establish [...]

Detecting Defects over the Whole Surface of Wafer by Non-destructive and Non-contact Pulse Photoconductivity Method (PPCM)

Ndagijimana J., Soh Y., Kubota H., Kobayashi K., Kumamoto University, JP

With the miniaturization of CMOS, the gate insulator has extremely become thin until reaching the EOT (equivalent oxide thickness) of less than 1nm in order to keep maintaining high-speed performances of devices and low electric [...]

Hydrophobic silicone elastomer chamber for recording trajectories of motile sperms without adsorption

Matsuura K., Funahashi H., Okayama University, JP

Sperm motility analysis is a representative method for evaluation of male fertility, since motility correlates with viability. The conventional method, commonly referred to as Computer-Assisted Sperm Analysis (CASA), to records motility and linear velocity (LV) [...]