Abstract:
An electronic component includes a pedestal plate that has a first surface made of a metal and a second surface being an opposite surface to the first surface, a heating element arranged on the first surface of the pedestal plate, and a resonator element arranged on the heating element. The pedestal plate overlaps the resonator element in a plan view.
Abstract:
An electrical device includes a first electrical component and a second electrical component connected to each other via an electrical connection having an electrically insulating support plate and a weld joint deposited on the support plate. The weld joint has a melting temperature (Ta) significantly lower than an ambient operating temperature (Ta) to which at least one of the two electrical components and the electrical connection are subjected. The electrical device includes cement that completely covers the exposed weld joint. The material of the cement is chosen to maintain its adhesion and its tightness with respect to the weld joint when the Ta is applied.
Abstract:
A package base includes a package base body and a bonding metal layer provided in a frame shape or a ring shape in plan view on the package base body, wherein the bonding metal layer contains a Ti—Ag—Cu-containing alloy and a metal belonging to Group 6 in the periodic table.
Abstract:
An electronic device includes: a wiring substrate; a plurality of device chips that are flip-chip mounted on an upper surface of the wiring substrate through bumps, have gaps which expose the bumps between the device chips and the upper surface of the wiring substrate, and include at least one device chip that has a substrate having a thermal expansion coefficient more than a thermal expansion coefficient of the wiring substrate; a junction substrate that is joined to the plurality of device chips, and has a thermal expansion coefficient equal to or less than the thermal expansion coefficient of the substrate included in the at least one device chip; and a sealer that covers the junction substrate, and seals the plurality of device chips.
Abstract:
A composite electronic component includes: a circuit board; a package that includes an acoustic wave filter and is located on a top surface of the circuit board; a dummy package that is located on the top surface of the circuit board; and a lid that is located above the package and the dummy package.
Abstract:
An ovenized oscillator package including at least a heater and a crystal package mounted on opposite sides of a circuit board. Vias extend through the body of the circuit board to transfer heat from the heater to the crystal package. Layers of thermally conductive material extend through the body of the circuit board and are in thermally coupled relationship with the vias for spreading heat throughout the circuit board and other elements mounted thereon.
Abstract:
A voltage controlled oscillator (VCO) assembly and module incorporating a ball grid array resonator as part of the tank circuit of the voltage controlled oscillator. The VCO module preferably incorporates at least an oscillator circuit, the tank circuit, and an output buffer stage circuit all defined by a plurality of interconnected electrical/electronic components including the ball grid array resonator which are mounted to a printed circuit board. In another embodiment, the oscillator assembly also includes a phase-locked loop circuit defined at least in part by an integrated circuit mounted to the printed circuit board.
Abstract:
A synthesizer module/oscillator assembly includes a voltage controlled oscillator with a coaxial resonator. In one embodiment, the module measures 20.3 mm×14.8 mm×3.9 mm and the coaxial resonator is positioned on the circuit board of the module between a phase locked loop integrated circuit and a main section of the voltage controlled oscillator. The phase locked loop circuit includes a loop filter and is adapted to receive the frequency signal generated by the voltage controlled oscillator and generate an adjusted frequency signal.
Abstract:
A resonator including a resonator body having a longitudinally extending through hole, an electrically conductive coating formed on the inner and outer surfaces of the resonator and an electrical gap formed by cutting a groove around the circumference of the body. The groove divides the resonator body into a short section and a long section, wherein the short section is used as a conductive pad for attachment to a circuit board.
Abstract:
A method for manufacturing substrate elements includes providing a mother substrate, forming at least one elongated through-hole on the mother substrate such that an entire longitudinal end surface of the first substrate element and a portion of a lateral surface of the second substrate element are exposed, forming an electrode pattern on the inner surface of the at least one elongated through-hole, and cutting the mother substrate along lines extending in the vicinity of the longitudinal ends of the at least one elongated through-hole and in a direction that is substantially perpendicular to the longitudinal axis of the elongated through-hole.