A CPU chip with a footprint of 3 cm by 2 cm is mounted on a circuit board. The chip generates 0.31 W/cm^2 and rejects heat to the environment at 28 C by convection and radiation. The outer casing of the chip has an emissivity of .88, and the heat transfer coefficient is 48 W/m^2 K. Neglecting the thickness of the chip and any conduction into the circuit board, calculate the chip surface temperature.
A CPU chip with a footprint of 3 cm by 2 cm is mounted on a circuit board. The chip generates 0.31 W/cm^2 and rejects heat to the environment at 28 C by convection and radiation. The outer casing of the chip has an emissivity of .88, and the heat transfer coefficient is 48 W/m^2 K. Neglecting the thickness of the chip and any conduction into the circuit board, calculate the chip surface temperature.