Abstract: An electrode tip dresser is disclosed which can dress a pair of electrode tips to a usable state while achieving a desired accuracy of a tip surface of each electrode tip including an angular portion at a peripheral edge of the tip surface, without separating each electrode tip from a welding gun. The electrode tip dresser includes a holder which is rotatable about a common axis of electrode tips, a pair of support shafts which are held by the holder, are arranged in parallel in an approach direction of the electrode tips, and extend in a direction orthogonal to the approach direction, and a pair of dressing rollers which are rotatably supported by the support shafts, respectively, to dress the electrode tips to a usable state.

Abstract: According to an embodiment of the present invention, a microelectromechanical system (MEMS) element tunes a resonator to a frequency.

Abstract: A film bulk acoustic resonator (FBAR) comprises a piezoelectric film sandwiched between a top electrode and a bottom electrode. A temperature sensor is provided to sense a temperature to determine a temperature induced frequency drift for the FBAR. A voltage controller operatively connected to the temperature sensor supplies a direct current (DC) bias voltage to the FBAR to induce an opposite voltage induced frequency drift to compensate for the temperature induced frequency drift.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.

Abstract: Plural band film bulk acoustic resonators may be formed on the same integrated circuit using lithographic techniques. As a result, high volume production of reproducible components can be achieved, wherein the resonators, as manufactured, are designed to have different frequencies.

Abstract: Microelectromechanical system (MEMS) apparatus and methods for surface acoustic wave (SAW) switching are disclosed. The apparatus includes a piezoelectric substrate having spaced apart input and output SAW transducers. A MEMS switch is arranged between the input and output SAW transducers The MEMS switch has a deformable member in electromagnetic communication with one or more actuation electrodes formed on or above the substrate. The deformable member is deformable to mechanically contact the substrate to deflect or absorb a SAW generated by the input SAW transducer.

Abstract: The disclosure describes an apparatus comprising a film bulk acoustic resonator (FBAR) filter having an input and an output, and an impedance matching unit coupled to one of the input and the output of the FBAR filter. Also described is a process comprising providing a film bulk acoustic resonator (FBAR) filter, the FBAR filter having an input impedance and an output impedance, matching the impedance of an input circuit to the input impedance of the FBAR filter, and matching the output impedance of the FBAR filter to the impedance of an output circuit. Other embodiments are described and claimed.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.

Abstract: This application discloses a microelectromechanical (MEMS) switch apparatus comprising an anchor attached to a substrate and an electrically conductive beam attached to the anchor and in electrical contact therewith. The beam comprises a tapered portion having a proximal end and a distal end, the proximal end being attached to the anchor, an actuation portion attached to the distal end of the tapered portion, a tip attached to the actuation portion, the tip having a contact dimple thereon. The switch apparatus also includes an actuation electrode attached to the substrate and positioned between the actuation portion and the substrate. Additional embodiments are also described and claimed.