Patent ID: 7154212

Claim:
An acceleration insensitive piezo-microresonator apparatus, comprising: a plano—plano piezo-microresonator, having a resonator length, a, a plate thickness, 2 h , a given proportionality constant, a predetermined resonant frequency and a plurality of major surfaces, is positioned between an upper gap and a lower gap of a rigid structural support member; said piezo-microresonator, said upper gap and said lower gap being embedded within said support member, said support member being stacked on a substrate; said plurality of major surfaces, being flat, parallel and adjacent to said upper gap and said lower gap, are impinged by said support member holding said piezo-microresonator; said piezo-microresonator having a diameter-to-thickness ratio, R, between said resonator length, a, and a plate half-thickness, h; a pair of electrodes rigidly fixed in a first doped region and a second doped region of said support member provides a thickness-directed electrical field to excite said piezo-microresonator; said predetermined resonant frequency being unaffected by a load capacitance of said upper gap and said lower gap; said support member provides structurally rigid support to a first end and a second end of said piezo-microresonator, holding said piezo-microresonator firm and steady under acceleration, and maintaining a constant overall height of said upper gap and said lower gap; and said piezo-microresonator vibrates freely and flexes under acceleration with a minimal thickness change, said proportionality constant being directly proportional to a square of said diameter-to-thickness ratio, R, and said proportionality constant being directly proportional to said plate half-thickness, h, resulting in a reduced acceleration sensitivity and an enhanced energy-trapping characteristic.