A power transistor with an area of A of 1 mm2 dissipates 10 watts. It is attached to a heat sink 2 mm thick, effectively cooled to 30°C on the back face by forced airflow. If the heat sink is made of aluminium nitride, how hot will the microchip be at steady state? You will find equations of heat flow in Appendix B, Table B15, and the thermal properties of aluminium nitride in Appendix A, Tables A5 an A6.

Data From Appendix Table A5

Data From Table A6

Data From Appendix B15

Transcribed Image Text:

Table A.5 Melting Temperature, Glass Temperature and Specific Heat