Abstract:
An apparatus including vertically separated acoustic resonators are disclosed. The apparatus includes a first acoustic resonator on a substrate and a second acoustic resonator vertically separated above the first acoustic resonator. Because the resonators are vertically separated above another, total area required to implement the resonators is reduced thereby savings in die size and cost are realized. The vertically separated resonators are supported by standoffs that are fabricated on the substrate, or on a resonator.
Abstract:
Acoustically coupled resonators include a first and a second acoustic resonator. Both the first and second acoustic resonators include a first electrode, a layer of piezoelectric material, and a second electrode. The first electrode is adjacent a first surface of the layer of piezoelectric material. The second electrode is adjacent a second surface of the layer of piezoelectric material. At least the second electrode has an edge that is tapered.
Abstract:
An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and a fill region. The first electrode is adjacent the substrate, and the first electrode has an outer perimeter. The piezoelectric layer is adjacent the first electrode. The second electrode is adjacent the piezoelectric layer and the second electrode has an outer perimeter. The fill region is in one of the first and second electrodes.
Abstract:
An electronic device. The electronic device includes a first electrode and a coating layer. The electronic device is fabricated on a substrate; the substrate has a cavity created in a top surface of the substrate; and the first electrode is electrically coupled to the substrate. The coating layer coats at least part of a substrate surface in the cavity, and the presence of the coating layer results in a mitigation of at least one parasitic leakage path between the first electrode and an additional electrode fabricated on the substrate.
Abstract:
A dispense system stores a scented material or materials and is provided with an electrical interface that is compatible with a hand-held device. The dispense system can be connected to the hand-held device and driven with the help of the hand-held device to dispense the scented material. The dispense system can be configured to store different scented materials that can be mixed to create different scents. Logic within the hand-held device supports the mixing and dispensing of the scented materials.
Abstract:
An apparatus includes a substrate with a cavity and a two-stage resonator filter fabricated over the cavity. The two-stage resonator filter includes a first stage and a second stage. The first stage includes a first resonator and a second resonator, the second resonator acoustically coupled to the first resonator. The second stage includes a third resonator and a fourth resonator, the fourth resonator acoustically coupled to the third resonator. The second resonator and the third resonators are electrically coupled. A decoupling layer couples the first resonator and the second resonator. The decoupling layer extends between the third resonator and the fourth resonator. The first resonator and the fourth resonator are above the substrate. The decoupling layer is above the first resonator and the fourth resonator. The second resonator and the third resonators are above the decoupling layer.
Abstract:
An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and a fill region. The first electrode is adjacent the substrate, and the first electrode has an outer perimeter. The piezoelectric layer is adjacent the first electrode. The second electrode is adjacent the piezoelectric layer and the second electrode has an outer perimeter. The fill region is in one of the first and second electrodes.
Abstract:
An apparatus and method for measuring a target environmental variable (TEV) that employs a film-bulk acoustic resonator with motion plate. The film-bulk acoustic resonator (FBAR) includes an acoustic reflector formed in an FBAR wafer and a surface. A first electrode is formed on the surface of the acoustic reflector and has a surface. A piezoelectric layer is formed on the surface of the first electrode and has a surface. A second electrode is formed on the surface of the piezoelectric layer. A motion plate is suspended in space at a predetermined distance relative to the surface of the second electrode and is capacitively coupled to the FBAR.
Abstract:
A wafer-level package includes a first wafer comprising a bonding pad, an optoelectronic device on the first wafer, and a second wafer comprising a gasket. The second wafer is attached to the first wafer by a bond between the gasket and the bonding pad.