| 摘要 |
PROBLEM TO BE SOLVED: To simplify the inspection work of heat dissipation and to enhance the heat dissipation properties of the housing and the degree of freedom in the design of a heat conduction passage. SOLUTION: The heat dissipation structure comprises heat dissipating bodies 3, 3' and 19 being coupled thermally with a substrate 12 supported in housings 16 and 17, and a sheet 4 for thermally coupling the heat dissipating body 3 and a package 13 bonded to the substrate 12. the sheet 4 has thermal conductivity and flexibility. The flexible sheet 4 can form a heat conduction passage as short as possible in a space where a variety of components are arranged in a crowded fashion in the housing. The GS is effective not only in the heat dissipation test but as an actual product. The sheet 4 is formed of a heat dissipating part 5 being coupled thermally with the heat dissipating bodies 3 and 3', a heat absorbing part 6 being coupled thermally with the package, and a bending part 7 between the heat dissipating part 5 and the heat absorbing part 6. According to the arrangement, the degree of freedom is enhanced in the design of the heat conduction passage.
|
