Patent ID: 7578190

Claim:
A device comprising: a Micro Electro-Mechanical System (MEMS) sensor, said sensor comprising: a substrate; a movable sensing element attached to said substrate, said movable element being adapted for motion relative to a rotational axis substantially geometrically centered between first and second ends of said movable sensing element to form a first section between said rotational axis and said first end, said first section having a first shape, and a second section between said rotational axis and said second end, said second section exhibiting a second shape that is substantially equivalent to said first shape such that said movable element is geometrically symmetric relative to said rotational axis, said first section including first apertures extending through said movable element to produce said first section having a first mass, said second section including second apertures extending through said movable element to produce said second section having a second mass that is less than said first mass; and at least one electrode positioned on said substrate facing said first and second sections of said movable element.