Patent classifications
H05K2203/171
TUNABLE SLOT RESONATOR ETCHED AT THE EDGE OF A PRINTED CIRCUIT BOARD
A device comprising a slot resonator (140) etched in a printed circuit board (110) comprising a short-circuit plane (142) and a high impedance plane (144), the high impedance plane being located on the edge of a ground plane of the printed circuit board, between two electronic modules (120, 130) hosted on the printed circuit board, the high impedance plane comprising an active component (150) tuned to optimize the noise level of the electronic modules. The overall length of the etching is equal to the quarter guided wave length modulo the half guided wave length of the frequency to be inhibited.
Methods of laser trace post processing and depaneling of assembled printed circuit boards
A method for processing a PCBa panel to individualize the PCBa's on the PCBa panel and depanel the PCBa panel in substantially one step is described. The PCBa panel initially comprises a number of PCBa's having components and traces common to a number of different product SKUs. During processing, the PCBa panel is loaded into a machine containing a first and second laser. The first laser severs extra traces on each PCBa to individualize the PCBa's for specific SKUs and the second laser cuts the links between each PCBa, thereby depaneling the PCBa panel.
Ceramic board with memory formed in the ceramic
The present disclosure is directed to a ceramic substrate that includes a plurality of contact pads, a plurality of electrical traces, and a microelectromechanical die. Contacts on the die are coupled to the plurality of contact pads through the plurality of electrical traces. The substrate also includes a plurality of memory bits formed directly on the substrate. Each memory bit is coupled between a first one of the contact pads and a second one of the contact pads.
Passive electrical devices with a polymer carrier
Passive electrical devices are described with a polymer carrier. In one example, a conductive layer is formed over a polymer substrate in a pattern to form a passive electrical device and at least two terminals of the device. A plurality of external connection pads are connected to the terminals of the device.
REAL-TIME IN-SITU ADDITIVE CIRCUIT TUNING FOR RF/MICROWAVE ELECTRONICS
A method of tuning a circuit includes measuring an electrical characteristic of the circuit and forming, by an automated process, a conductive trace connected to the circuit to adjust the electrical characteristic of the circuit. The steps of measuring the electrical characteristic and forming the conductive trace are conducted simultaneously. The automated process involves adjusting a physical characteristic of the conductive trace in real-time in response to results of measuring the electrical characteristic of the circuit until the electrical characteristic of the circuit complies with a selected criterion.
Position indicator and manufacturing method thereof
A position indicator includes: a chassis; a substrate disposed inside the chassis; a coil; capacitors disposed on the substrate; interconnects disposed on the substrate such that each at least partially connects a respective one of the capacitors to the coil in parallel; and pairs of land patterns. Each pair of land patterns includes a first land pattern and a second land pattern. Each of the interconnects has a first end connected to a first end of the coil and a second end connected to a second end of the coil, and is connected to one of the capacitors. The pairs of land patterns are disposed such that each of the interconnects is at least partially interposed between the first land pattern and the second land pattern of one of the pairs of land patterns.
Position indicator and capacitor
A position indicator includes a resonance circuit housed in a casing and having an inductance element and a capacitor variable in capacitance, such that the resonance circuit resonates at a predetermined frequency. The position indicator is electromagnetically coupled to a position detecting device. The capacitor includes a dielectric, an electrode disposed on one side of the dielectric, and a trimming electrode disposed on another side of the dielectric such that at least one part of a region of the trimming electrode is opposed to the electrode with the dielectric interposed in between, to form the capacitance of the capacitor. The capacitor is housed in the casing such that the at least one part can be exposed from the casing. The area of the at least one part exposed from the casing to the outside is changed so as to correspond to a resonance frequency desired for the resonance circuit.