Cloning Printed Circuit Board for Snake Track Layout

Any one of the tracks on the printed circuit board can cause the time delay on the signal transmission when in the scenario of high frequency environment, the main usage of snake shape track layout is to compensate the minor extended part in the signal line from the same related set, these part seldom or much less than other signals go through the logic processing which can be viewed by Cloning printed circuit board; the most typical sample is the clock line, normall it won’t need to pass any other logic processing, it is delay will smaller than other related signals consequently.

The usage of High speed PWB Cloning’s identical length line is to keep the delay difference from each signals can be controlled within a scope, to ensure the effectiveness of read data within the same period of time in the system, as we all know, if the delay difference over one clock cycle, it will read the data in the next cycle mistakenly.

Normally PCB card reverse engineering analysis require the difference won’t longer than 1/4 of the clock cycle, and the liner delay on the unit length is also fixed, the delay has close relations with track width, track space, copper thickness and PCB board Cloning structure, anyway, if the track is too long it will increase the dissipated capacitors and inductor, and deteriorate the transmitted signal.

So the IC lead of clock will general connect to the RC terminal, anyway, the snake shape layout won’t play the effects of inductance, on the contrary, inductance can cause the migration of higher harmonics in the uprising trend, which can cause the deterioration of signal transmission. So the distance between the snake layout shouldn’t larger than two times of the line width, and the less time length of rising, the easier for the affection from dissipated capacitor and inductors.

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