Abstract
The cooling method for PC, HD and etc is more important recently as the PC and HD work faster and higher density in the package. As the limitation of the heat transfer with a natural convection is low values, it is need for the cooling to develop new technology for enhancing heat release with the passive method. In this study, the heat and energy transfer mechanism on surface with fine powder coating by a peculiar pyroelectricity material is investigated experimentally with the unsteady temperature measurement at multi-points. In addition, a new heat flux category is 334w/m^2, 548w/m^2 and unsteady experiment. From the results, the effects of energy conversion coefficient are made clear with several embrocated conditions, which the values are 10%-20% in this study.