An integrated circuit (IC) device for driving a light emitting device,
such as a laser diode, includes a heat-absorbing structure fabricated on
a substrate over an electrical component, such as an output transistor,
to reduce the heat transfer between the electrical component and the
light emitting device. The heat-absorbing structure is designed to absorb
some of the heat generated by the electrical component so that less heat
from the electrical component is transferred to the light emitting
device, which reduces the operating temperature of the light emitting
device. A method of fabricating the IC device includes forming the
electrical component on the substrate and forming the heat-absorbing
structure on the substrate over the electrical component. The
heat-absorbing structure may be configured to substantially encase the
electrical component.