Abstract:
An electrical device can include a printed circuit board (PCB), an electrical component integrated therewith, and connectors that are each integrated with a certain edge of the PCB. Traces can provide electrical channels between the connectors and the electrical component. Some of the connectors can be integrated at a first edge of the PCB and within a first plane, and other connectors can be integrated at a second edge of the PCB and within a second plane that is distinct from the first plane.
Abstract:
A printed circuit board for carrying high frequency signals. Conducting structures of the printed circuit board are shaped within breakout regions to limit impedance discontinuities in the signal paths between vias and conductive traces within the printed circuit board. Values of parameters of traces or anti-pads, for example, may be adjusted to provide a desired impedance. The specific values selected as part of designing a printed circuit board may match the impedance of the breakout region to that of the via. The parameters for which values are selected may include the trace width, thickness, spacing, length over an anti-pad or angle of exit from the breakout region.
Abstract:
The present invention relates to a discharge structure for an overvoltage and/or overcurrent protection, in particular to a discharge structure for an electrostatic discharge (ESD) protection, for an integrated circuit (IC), and to an ESD protection device for an IC comprising such a discharge structure and to a method for making such a structure. The present invention particularly relates to such a discharge structure (50, 52) which comprises at least two discharge paths (40, 80) provided to conduct a current to a terminal (60), whereas substantially all of the discharge paths (40, 80) present substantially the same resistance for the current.
Abstract:
본 발명은 전극간을 전기적으로 접속하여 접속 구조체를 얻은 경우, 얻어진 접속 구조체에서의 접속 저항을 낮게 하고, 공극의 발생을 억제할 수 있는 도전성 입자 및 도전 재료를 제공한다. 본 발명에 관한 도전성 입자 (1)은, 땜납 (3)을 도전성의 표면 (1a)에 갖는다. 땜납 (3)의 표면에 카르복실기를 포함하는 기가 공유 결합하고 있다. 본 발명에 관한 도전 재료는, 도전성 입자 (1)과 결합제 수지를 포함한다.
Abstract:
A printed wiring board is provided to be used when a plurality of the same electronic components are arranged in parallel and stably to drive the electronic components for many hours. A printed wiring board group includes a plurality of printed wiring boards having a wiring pattern(14) with a plurality of wirings made of a conductive metal on an insulating film. A difference between an average electric resistance value of the wiring formed on one printed wiring board(A) and an average electric resistance value of the wiring formed on another printed wiring board(B) adjacent to the printed wiring board is in the range of Œ5% for an average electric resistance value of the wirings in the two printed wiring boards. A difference between an electric resistance value of the printed wiring board between an outer lead and an inner lead of the outermost wiring formed closest to the another printed wiring board and an electric resistance value of the another printed wiring board between an outer lead and an inner lead of the outermost wiring formed closest to the printed wiring board is in the range of Œ11.05% for the average electric resistance value of the wirings in the two printed wiring boards.