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  2. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    This results in an inseparable one piece product. For example, a four-layer PCB can be fabricated by starting from a two-sided copper-clad laminate, etch the circuitry on both sides, then laminate to the top and bottom pre-preg and copper foil. It is then drilled, plated, and etched again to get traces on top and bottom layers. [41]

  3. Routing (electronic design automation) - Wikipedia

    en.wikipedia.org/wiki/Routing_(electronic_design...

    For example, the allowed width and spacing on the lower layers may be four or more times smaller than the allowed widths and spacings on the upper layers. This introduces many additional complications not faced by routers for other applications such as printed circuit board or multi-chip module design.

  4. DipTrace - Wikipedia

    en.wikipedia.org/wiki/DipTrace

    DipTrace is a proprietary software suite for electronic design automation (EDA) used for electronic schematic capture and printed circuit board layouts. DipTrace has four applications: schematic editor, PCB editor with built-in shape-based autorouter and 3D preview, component editor (schematic symbol), and pattern editor (PCB footprint).

  5. TINA (program) - Wikipedia

    en.wikipedia.org/wiki/TINA_(program)

    TINA Design Suite includes an integrated layout module for designing multilayer PCB's with split power plane layers, auto-placement & auto-routing, rip-up and reroute, manual and "follow-me" trace placement, DRC, forward and back annotation, pin and gate swapping, keep-in and keep-out areas, copper pour, thermal relief, fan-out, 3D view of the ...

  6. Via (electronics) - Wikipedia

    en.wikipedia.org/wiki/Via_(electronics)

    The gray and green layers are nonconducting, while the thin orange layers and red vias are conductive. A via (Latin, 'path' or 'way') is an electrical connection between two or more metal layers of a printed circuit boards (PCB) or integrated circuit. Essentially a via is a small drilled hole that goes through two or more adjacent layers; the ...

  7. Gerber format - Wikipedia

    en.wikipedia.org/wiki/Gerber_format

    The Gerber format is an open, ASCII, vector format for printed circuit board (PCB) designs. [1] It is the de facto standard used by PCB industry software to describe the printed circuit board images: copper layers, solder mask, legend, drill data, etc. [2] [3] [4] The standard file extension is .GBR or .gbr [1] though other extensions like .GB, .geb or .gerber are also used.

  8. EAGLE (program) - Wikipedia

    en.wikipedia.org/wiki/Eagle_(program)

    Layers PCB size Use Cost/month Cost/year Premium 999 16 4 m 2: Any $65 $510 Student and educator 999 16 4 m 2: For student and educator use only Free Free Standard 99 4 160 cm 2: Any $15 $100 Free 2 2 80 cm 2: For individual, non-commercial use only Free Free

  9. Shockley diode - Wikipedia

    en.wikipedia.org/wiki/Shockley_diode

    The Shockley diode (named after physicist William Shockley) is a four-layer semiconductor diode, which was one of the first semiconductor devices invented. It is a PNPN diode with alternating layers of P-type and N-type material. It is equivalent to a thyristor with a disconnected gate.

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