| 摘要 |
PURPOSE:To convert both energies of light and heat which are natural energy into electricity, by incorporating the semiconductor photocell which converts the light into electrical energy and a semiconductor thermal generator which converts the heat to the electrical energy into one unit. CONSTITUTION:A frame shaped case 18 having a pillar shaped body at the center is formed by using a material which protects and insulates the semiconductors. The P type semiconductor 13 and the N type semiconductor 14 are coupled into the case 18 so as to hold the central pillar shaped body. Outer electrodes 16 and 17 are deposited on the lower surfaces of said semiconductors, respectively. Then a metal electrode 15 is contacted on the surfaces of the semiconductors 13 and 14 so as to short them. Bonding resin 19 which is a good thermal conductor but is an electrical insulator is applied on the electrode 15. A PN junction semiconductor chip 10 having external electrodes 11 is mounted via a basic material which absorbs the light and heat. Then a case 12 which absorbs the light and heat and has a transparent window is placed on the top. In this constitution, an optical e.m.f. is obtained from the light irradiated on the chip 10, and Joule's heat generated in the chip 10 is converted into a thermal e.m.f. by the semiconductors 13 and 14, and both are led out of the electrodes 15-17. |
