Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Printed_circuit_board> ?p ?o }
- Printed_circuit_board abstract "A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Multi-layer PCBs allow for much higher component density. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.FR-4 glass epoxy is the primary insulating substrate upon which the vast majority of rigid PCBs are produced. A thin layer of copper foil is laminated to one or both sides of an FR-4 panel. Circuitry interconnections are etched into copper layers to produce printed circuit boards. Complex circuits are produced in multiple layers. Printed circuit boards are used in all but the simplest electronic products. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs require the additional design effort to lay out the circuit, but manufacturing and assembly can be automated. Manufacturing circuits with PCBs is cheaper and faster than with other wiring methods as components are mounted and wired with one single part. Furthermore, operator wiring errors are eliminated.When the board has only copper connections and no embedded components, it is more correctly called a printed wiring board (PWB) or etched wiring board. Although more accurate, the term printed wiring board has fallen into disuse. A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). The IPC preferred term for assembled boards is circuit card assembly (CCA), and for assembled backplanes it is backplane assemblies. The term PCB is used informally both for bare and assembled boards.The world market for bare PCBs reached nearly $60 billion in 2012.".
- Printed_circuit_board thumbnail PCB_Spectrum.jpg?width=300.
- Printed_circuit_board wikiPageExternalLink before_microprocessors.htm.
- Printed_circuit_board wikiPageExternalLink www.jumapcb.com.
- Printed_circuit_board wikiPageExternalLink the_gerber_file_format_specification.pdf.
- Printed_circuit_board wikiPageExternalLink pcb_fabrication_a_guide_20150107.pdf.
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- Printed_circuit_board wikiPageWikiLink Category:Electronics_substrates.
- Printed_circuit_board wikiPageWikiLink Category:Printed_circuit_board_manufacturing.
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- Printed_circuit_board wikiPageWikiLink IPC_(electronics).
- Printed_circuit_board wikiPageWikiLink Impedance_matching.
- Printed_circuit_board wikiPageWikiLink In-circuit_test.