Isao Masada

Development of AlN Fillers for Composite Resins with High Thermal Conductivity and Low Bond-Line Thickness

Yusaku Imasaku, Atushi Sanagawa, Isao Masada, Go Hamasaka et autres

Heat generation from electronic devices has become a significant issue due to increasing density of semiconductor devices. Thermal interface materials (TIM) are used as heat conductors between heat sources and heat sinks in electronic devices. As a filler for TIM, aluminum nitride …

jp (code pays fourni par la source)

Surface Treatment of AlN Filler for Improvement of Reliability in Silicone Resin Composites

M. Takakusaki, Isao Masada, Yoshiyuki Iizuka, T. Hamasaka et autres

To release heat of integrated circuits and power devices, thermal interface material (TIM) is used as a heat conductor between a heat source and a heat sink. The increasing of the thermal conductivity of the fillers is necessary to increase the thermal …

jp (code pays fourni par la source)

High Thermal Conductive Composite Resin Filled with Spherical and Polyhedral Aluminum Nitrides

Takefumi Iida, Atsushi Sakamoto, Isao Masada, Saiko Fujii et autres

To release heat of integrated circuits and power devices, thermal interface material (TIM) is used as a heat conductor between a heat source and a heat sink. High thermal conductivity and electrical insulation property are required in TIM, according to the high …

jp (code pays fourni par la source)

Development of Novel BN Filler for High Thermal Conductivity Packaging Material

Kyoichi Fujinami, S. Imazumi, Saiko Fujii, Isao Masada et autres

Novel low aspect ratio primary hexagonal Boron Nitride (BN) particles and agglomerated BN filler were developed by carbo-thermal-reduction and nitridation (CRN) method in this study. They were used as high thermal conductivity filler for resin composite. Especially, viscosity of epoxy resin filled …

jp (code pays fourni par la source)

AlN filler for high thermal conductive resin materials

Yoshitaka Inaki, Hisamori Inagawa, Saiko Fujii, Isao Masada et autres

Aluminum nitride (AlN) powder has has high thermal conductivity and is expected as filler for heat dissipation materials. Fine AlN powder after removing coarse particles by classification is well dispersed into resin, and it is possible to achieve high filling rate and …

jp (code pays fourni par la source)

High thermal conductivity composite resin sheet filled with large diameter aluminum nitride and aggregated boron nitride

Isao Masada, Saiko Fujii, S. Imazumi, Kyoichi Fujinami et autres

In order to investigate the possibility of high thermal conductivity material, composite resin sheets combining large grain size AlN filler and agglomerated BN filler were prepared and heat conductivity characteristics were evaluated. In combination with BN filler, the superiority of AlN filler …

jp (code pays fourni par la source)

Determination of low carbon concentration in Czochralski-grown Si crystals for solar cells by luminescence activation using electron irradiation

Hirotatsu Kiuchi, Michio Tajima, Fumito Higuchi, Atsushi Ogura et autres

Abstract We attempted the quantification of carbon concentration in Czochralski-grown Si crystals for solar cells by luminescence activation in the concentration range lower than the detection limit of IR absorption spectroscopy. A positive correlation was found between the relative intensity of the …

jp (code pays fourni par la source)

Effect of Carbon Concentration and Growth Conditions on Oxygen Precipitation Behavior in n-type Cz-Si

Takuto Kojima, Ryota Suzuki, Kosuke Kinoshita, Kyotaro Nakamura et autres

The behavior of oxygen precipitates under solar cell fabrication processes and the effect on device performance were investigated using TEM observation. Samples were prepared with different carbon concentration and with two sets of growth conditions. The number of precipitates correlates monotonically with …

jp (code pays fourni par la source)

Effects of thermal budget in n-type bifacial solar cell fabrication processes on effective lifetime of crystalline silicon

Tomihisa Tachibana, Kyotaro Nakamura, Atsushi Ogura, Yoshio Ohshita et autres

The effects of residual C on cell properties are investigated from the view point of thermal budget in the n-type bifacial cell processes. Implied Voc obtained from wafers with same Oi concentration depend on the thermal budgets decreases as the Cs concentration …

jp (code pays fourni par la source)

TEM Image Analysis of Oxygen Precipitation Behavior in n-type Cz-Si for Photovoltaic - Effect of C Concentration and Growth

Takuto Kojima, Kosuke Kinoshita, Ryota Suzuki, Kyotaro Nakamura et autres

Evaluations of Oxygen Precipitation Behavior in n-type Cz-Si for Photovoltaic by Infrared Tomography -Effect of C Concentration and Growth Conditions

Kousuke Kinoshita, Takuto Kojima, Ryota Suzuki, Hiroto Kobayashi et autres

Effect of Growth Conditions on Process Induced Oxygen Precipitation in N-type Cz Silicon Photovoltaic Cells

Takuto Kojima, Kosuke Kinoshita, Ryota Suzuki, Kyotaro Nakamura et autres