A method for fabricating a wireless pressure sensor includes providing a
first substrate. A portion of the first substrate is controllably
displaced to form a cavity. A conducting material is patterned on the
first substrate to form a first capacitor plate and a first inductor. A
second substrate is provided. A conducting material is patterned on the
second substrate to form a second capacitor plate. The second substrate
is attached to the first substrate to seal the cavity such that at least
a portion of the second substrate is movable with respect to the first
substrate within the cavity in response to a change in an external
condition. A hermetically sealed capacitive pressure sensor may reside in
the cavity between the first substrate and second substrate.