A circuit was designed for use in the transient hot-strip method for the determination of thermal properties of thermal insulators and electrical properties of thin metal films. The article describes how the output of power in the strip source can be kept constant throughout a measurement, and how a low voltage can be used even for thin metal films with high resistances....
This study aimed to develop a new technique for thermal management in high powered gallium nitride (GaN) electronic and optoelectronic devices. The researchers integrated GaN with diamond through the process of depositing high-quality nanocrystalline diamond films directly onto the GaN material at temperatures between 450-500°C. Highly controlled growth conditions for the diamond ensured that it was of good quality. Thermal conductivity measurements using the laser flash method were performed ...
As electronics get smaller and more powerful, the components within them that handle heat dissipation must also evolve. Increasing power density and rising hot spots must be accouted for and handled. In this PhD dissertation, the author studies materials for potential use as heat spreaders or insulators at the nanoscale to understand their thermal properties. Nanostructured superlattices have shown to be highly effective in reducing the thermal conductivity of heat ...
Currently, there is no research into the accuracy of the transient plane source (TPS) method for measuring the thermal conductivity of thin films. The purpose of this study is to use numerical simulation to determine the accuracy of thermal conductivity measurements of thin films, with the TPS method. The values produced from the TPS method closely resembled those of the numerical simulation. The deviations from the numerical model were caused ...
The aim of this study was to fabricate transparent polymers with high thermal conductivities for applications in electronic packaging. Characteristics of the inorganic filler, calcium fluoride (CaF2), and the polymer matrix were examined, and thermal conductivity was measured using a thermal analyzer based on the transient plane source (TPS) method. Results showed that the thermal conductivity of the composites increased with CaF2 content. This study was the first to report ...
