774results about How to "Reduce signal interference" patented technology

In an electronic circuit equipment using a multilayer circuit board on which a semiconductor chip is mounted, a thin film capacitor is provided on the multilayer circuit board. Moreover, a first electrode of the thin film capacitor and a first wiring of the multilayer circuit board are electrically connected to each other, and a second electrode of the thin film capacitor and a second wiring of the multilayer circuit board are electrically connected to each other, respectively. Furthermore, a thin film dielectric of the thin film capacitor was grown epitaxially with the first electrode as its base. The employment of the multilayer circuit board makes it possible to provide the electronic circuit equipment using the multilayer circuit board that includes the built-in thin film capacitor having the high dielectric-constant thin film dielectric.

An integrated circuit module includes a carrier substrate, a semiconductor die disposed in the carrier substrate, a ground pad disposed on the carrier substrate, and an antenna partially embedded in the carrier substrate. The antenna includes a ground layer in thermal contact with the ground pad for dissipating heat generated from the semiconductor die.

The invention discloses a four-rotor aircraft provided with telescopic and foldable undercarriages. The four-rotor aircraft comprises an aircraft body, four rotor arms and four rotors, wherein the four rotor arms and the aircraft are combined into a cross-shaped structure; the four rotors are arranged on the four rotor arms respectively; grooves are formed in the lower surfaces of the rotor arms; the undercarriages are arranged in the grooves; each undercarriage comprises a hollow main body, a telescopic body, a driving motor and a lead screw; the driving motor and the lead screw are arranged in the hollow main body; one end of the main body is hinged to each rotor arm; one end of the telescopic body extends into the main body from the other end of the main body; the driving motor is used for driving the lead screw to rotate positively or negatively; the lead screw is used for driving the telescopic body to extend outwards or retract inwards along a cavity in the main body; the undercarriages in retraction states can be rotationally folded in the grooves. As the undercarriages have not only telescopic functions but also foldable functions, when the aircraft is positioned on the ground, the height of the aircraft body can be adjusted, and conveniences are brought to daily maintenance work.