摘要:
Testing is performed on an amplifier wafer housing a transimpedance amplifier prior to packaging the transimpedance amplifier with an external photodetector, wherein the transimpedance amplifier includes a small, auxiliary, integrated silicon photodetector provided at the input of the transimpedance, in parallel with external photodetector attachment points. To test the transimpedance amplifier, the transimpedance amplifier is stimulated by optically exciting the small auxiliary photodetector, wherein the small auxiliary photodetector is excited using short wavelength light, whereby advantages such as higher efficiency may be obtained. The testing method includes placing the amplifier wafer in a testing system, probing the power and ground connections on the amplifier wafer, illuminating the small auxiliary photodetector on the amplifier wafer, and detecting the output of the transimpedance amplifier housed on the amplifier wafer.
摘要:
A circuit includes an input signal line, a high performance resonant element connected to the input signal line, and an output signal line connected to the high performance resonant element. The high performance resonant element is a via.
摘要:
An electrical circuit device that includes a circuit board with an integrated circuit chip in a cavity that extends from a surface of the circuit board to an embedded conductor, and an electrical connection between the integrated circuit chip and the embedded conductor.
摘要:
Electromechanical relays and semiconductor structures and microelectromechanical systems including at least part of an electromechanical relay are presented. For example, an electromechanical relay includes an electrically conductive terminal within a printed circuit board, one or more electrically conductive contacts, and one or more magnetic actuators. The one or more magnetic actuators are respectively associated with the one or more electrically conductive contacts and each magnetic actuator includes (i) a magnetic core within at least one via extending through one or more layers of the printed circuit board, and (ii) an electrical coil around at least a portion of the magnetic core and within one or more layers of the printed circuit board. Activation of the one or more actuators causes electrical contact between the terminal and an associated one of the one or more electrically conductive contacts.
摘要:
A mapping system and method. The mapping system comprises an electromagnetic field generator, a layer of electromagnetic field absorbing material over an object, and an infrared camera. The electromagnetic field generator is adapted to generate an electromagnetic field and expose the electromagnetic field absorbing material and object to the electromagnetic field. The layer of electromagnetic field absorbing material is adapted to absorb the electromagnetic field and generate areas of thermal differences within the electromagnetic field absorbing material. The infrared camera is adapted to detect the areas of thermal differences.
摘要:
An interposer includes an array of buttons on a carrier having a proximity to each other that allows contact between two adjacent buttons to occur when at least one of the two adjacent buttons is axially compressed above a predetermined threshold. The chip package includes a chip having a first surface and a second surface, a printed circuit board having a first surface and a second surface, and an interposer having an array of buttons between the chip and the printed circuit board. The first surfaces are closer to each other than the second surfaces.
摘要:
A method (and structure) of making an electronic interconnection, includes, for a signal line to be interconnected, using a plurality of bonding wires configured to provide a controlled impedance effect.
摘要:
A coplanar waveguide (CPW) probe includes at least one center probe element, each having a respective center probe contact point and at least one peripheral probe element, each having a respective peripheral contact point. The pitch between the at least one center contact point and the at least one peripheral contact point is adjustable.
摘要:
A coplanar waveguide (CPW) probe includes at least one center probe element, each having a respective center probe contact point and at least one peripheral probe element, each having a respective peripheral contact point. The pitch between the at least one center contact point and the at least one peripheral contact point is adjustable.
摘要:
A method of forming a semiconductor device for processing a signal includes providing a circuit board including an input signal line, providing a high performance resonant element connected to the input signal line, and providing an output signal line connected to the high performance resonant element. The high performance resonant element includes a via.