Chips of width L = 15 mm on a side are mounted to a substrate that is installed in an enclosure whose walls and air are maintained at a temperature of Tsur = Tx = 25°C. The chips have an emissivity of B = 0.60 and a maximum allowable temperature of Ts = 85°C.

Transcribed Image Text:

Enclosure, Tu -Substrate Air T h -Chip (T, e)