| Title |
Evaluation of Spreading Thermal Resistance inSymmetrical Four-Heat Generating Electronic Components |
| Keywords |
Spreading thermal resistance ; 확산 열저항 ; Correlation ; 상관식 ; Geometric equivalence ; 기하학적 등가 ; Multi-heat sources ; 다중 발열체 ; Numerical analysis ; 전산해석 |
| Abstract |
We propose the correlation to predict the spreading thermal resistance on a plate with symmetrical four heat sources. The correlation transforms four heat sources to a single equivalent heat source and then the spreading thermal resistance can be obtained with the existing equation for a single heat source. When the four heat sources are mounted on a square base plate, the correlation is expressed as a function of the heat source size, the length of base plate, the plate thermal conductivity and the distance between heat sources. Compared to the results of three-dimensional numerical analysis, the spreading thermal resistance by the proposed correlation is in good agreement within 10 percent accuracy. |