A thermocouple (type K, u = 0.5 mm) was attached to the bottom of heat sink cup, and its temperature was measured using a data logger (TC-08; Pico Technology Ltd., Cambridgeshire, UK).
A thermocouple (type K, u = 0.5 mm) was attached to the bottom of heat sink cup, and its temperature was measured using a data logger (TC-08; Pico Technology Ltd., Cambridgeshire, UK).