Mechanical self-reciprocating oscillator and mechanism and a...

Details Mechanical self-reciprocating oscillator and mechanism and a... Mechanical self-reciprocating oscillator and mechanism and a...

2005-01-20

2008-11-25

Chang, Joseph (Department: 2817)

Oscillators

Electromechanical resonator

C333S186000, C310S306000, C310S309000, C060S527000, C073S105000, C355S078000

Reexamination Certificate

active

07456698

ABSTRACT:
A mechanical self-reciprocating oscillator and mechanism and method for establishing and maintaining regular back and forth movement of a micromachined device without the aid of any electronic components are provided. The fully mechanical micromachined oscillator and mechanism are driven using only a DC power source on at least one substrate such as a semiconductor chip. The oscillator and mechanism preferably include an electrothermal actuator, that, when actuated, opens a switch to cut off supply current to the actuator. Two versions of the oscillator and mechanism are provided using distinct hysteresis mechanisms, one structural and the other thermal.

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