Abstract:
A microelectromechanical structure having a ceramic substrate formed from low temperature co-fired ceramic sheets. A low loss photodefinable dielectric planarizing layer is formed over one surface of the ceramic substrate. This layer can be a sacrificial layer or a subsequent sacrificial layer added. A photodefined conductor is printed over the low loss dielectric planarizing layer and formed with the sacrificial layer into a structural circuit component. A switch is formed with a biasing actuator and deflectable member formed over the biasing actuator and moveable into open and closed circuit positions.
Abstract:
Electromagnetic wave oscillators each having a multi-tunnel and electromagnetic wave generating apparatuses including the electromagnetic wave oscillators are provided. The electromagnetic wave oscillator includes: a first waveguide (130) which has a folded structure such that a path traveled by an electromagnetic wave through the first waveguide crosses an axial direction a plurality of times; an electron beam tunnel (131) through which an electron beam passes, wherein the electron beam tunnel extends along the axial direction and crosses the first waveguide a plurality of times; and at least one auxiliary tunnel (139) which extends parallel to the electron beam tunnel and which crosses the first waveguide a plurality of times.
Abstract:
The invention relates to a MEMS inertial sensor, including a frame to which at least a first seismic body and a second seismic body are connected by resilient means such as to be movable in a suspension plane, transducers to keep the seismic bodies vibrating and determine a movement of the seismic bodies in the suspension plane, and a control unit connected to the transducers by electrical conduction means. The transducers comprise at least one electrode rigidly connected to the first seismic body and one electrode rigidly connected to the second seismic body, the two electrodes being arranged such as to allow direct measurement of the relative movement of the seismic bodies relative to one another in the suspension plane.
Abstract:
The present invention relates to a method of fabricating a resonator in a substrate, characterized in that it comprises the following steps: a) modifying the structure of at least one zone of the substrate so as to render said at least one zone more selective; b) etching said at least zone so as to selectively fabricate said resonator.