Vibrating beam accelerometer two-wafer fabrication process

Details Vibrating beam accelerometer two-wafer fabrication process Vibrating beam accelerometer two-wafer fabrication process

2005-09-06

2005-09-06

Kwok, Helen (Department: 2856)

Metal working

Method of mechanical manufacture

Electrical device making

C029S846000

Reexamination Certificate

active

06938334

ABSTRACT:
A method for fabrication of microelectromechanical systems (MEMS) integrated micro devices and acceleration sensor devices formed according to the method, the method being micromachining an array of first three-dimensional micromechanical device features in a first silicon wafer; micromachining an array of second three-dimensional micromechanical device features in a second silicon wafer, wherein the second three-dimensional micromechanical device features are configured to cooperate with the first three-dimensional micromechanical device features when joined therewith; mutually aligning the first and second arrays of device features by aligning the first and second wafers; permanently joining the first and second arrays of device features into an array of integrated micro devices as a function of permanently joining the first and second wafers into a single composite wafer; and subsequently separating the array of integral devices into individual devices each having a set of the first and second device features.

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