Design of a Ultra-Slim Mobile Phone with Multi-hinges and Development of Heat-spreader for it

복합 구동형 초슬림폰 설계 및 초슬림폰용 히트 스프레더 개발

According to the customers' demands, cellular phones are getting thinner and thinner in spite that their functions are getting more complex and flexible. Based on this trend, we are willing to propose new design of ultra slim cellular phone with multi-hinges which can provide thinner feature and wider active area than the current merchandised one. To make it come true, smaller and stronger mechanical parts would be necessary and more researches would be carried out in the near future. Moreover, the new frame of ultra slim cellular phone has the problem in heat propagation due to its thin feature and multi function. In this paper, slim heat-spreader would be proposed as a candidate to resolve the problem of heat transfer in the new cellular phone. To investigate the applicability of heat-spreader to cellular phones, prototypes were fabricated and verified.