Patent ID: 8569808

Claim:
A semiconductor package comprising: a substrate; a MEMS device provided on the substrate, the MEMS device comprising: a body; a first heating element integrated with the body, and a dedicated first temperature control loop operable to control operation of the first heating element, the first heating element being operable to generate heat when a current flows through the element and transfer the heat directly to the body of the MEMS device; and a CMOS chip provided on the substrate, the CMOS chip including a second heating element and a dedicated second temperature control loop operable to control operation of the second heating element; wherein the temperature of the MEMS device and CMOS chip are independently controllable; wherein the first temperature control loop comprises a first power controller comprising circuitry operable to control power supply to the first heating element and a first temperature sensor operable to measure an operating temperature of the MEMS device, operation of the first power controller being controlled at least in part by the first temperature sensor; wherein the first temperature sensor and first heating element are physically disposed in the MEMS chip; and wherein the first power controller is disposed in the CMOS chip.