Abstract
In order to meet the recent demand for downsizing of the electronic equipment, the miniaturization and the improvement in heat transfer performance of heat sink in natural air-cooling are required strongly than ever. From previous studies using large sized heat sink, it has been revealed that the heat sink performance depends on the pin size and the population density of pin. However, there seems almost no report focusing on pin parameters alone. In this study, the effects of pin size and the population density of pin on the heat transfer characteristics of small sized heat sink, especially with the pin height and pitch from several hundred micro meters to a few millimeters, have been investigated experimentally.
