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"Squiggly Traces" are actually know as Serpentine Traces. These wires are often used to make traces the same length. In high speed signaling, especially when using differential signaling ( http://en.wikipedia.org/wiki/Differential_signaling ). Differential signaling requires the signals arrive at the same time. Take a look at this Sparkfun Forum talking about what they are with a example picture: http://forum.sparkfun.com/viewtopic.php?f=20&t=29396

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What are circuit board connectors used for?

A circuit board connector is used to mechanically support and connect electronically the various components of a circuit board. It does this using conductive pathways and signal traces.


What is mean by PCB board?

Printed Circuit Board, the circuits/wiring are printed in copper traces on an insulating board.


How do you symbolically represent a conecting wire and a resistance?

The symbol for a wire is simply a line between circuit elements. The symbol for a resistor is a squiggly line. The related link goes directly to a picture of the symbol.


Does a printed circuit board have a feature?

A printed circuit board (PCB) is a flat board made of non-conductive material that holds electronic components and provides electrical connections between them. It serves as a base for assembling and mounting electronic circuits. The board features a network of copper traces or conductive pathways, called traces, that allow the flow of electrical signals and power between components on the board. PCBs are widely used in various electronic devices, ranging from smartphones and computers to industrial equipment and automobiles. metalbee.lv/en/faq/


What is etching in electronics?

It is a process used in the making of printed circuit boards. A protective material is used to cover the traces that you want left on the PC board. The board is then submerged into an liquid that will etch the unprotected copper off of the board. This removed material then becomes the space between the protected material that you want to use for current caring traces to different components on the board.