Patent ID: 7138745

Claim:
An actuator system, comprising: a microelectromechanical (MEMS) structure comprising: a platform connected with a suspension system comprising a set of one or more bimorph flexures, each bimorph flexure comprising first and second materials having substantially similar coefficients of thermal expansion (CTEs), each bimorph flexure having a curvature resulting from a first component proportional to the difference in intrinsic residual stress (IRS) characteristics of the first and second materials and a second component proportional to the difference in CTEs of the first and second materials, the first component being larger than the second component; and a substrate connected with the suspension system, the substrate comprising: a set of one or more electrodes for inducing actuation of the suspension system; and a control circuit coupled to the set of electrodes for controlling the set of electrodes wherein the control circuit and the set of electrodes are integrated on the same substrate.