Add Accordions Effect on Printed Circuit Board Cloning

Each one of the tracks on the drawing from Printed Circuit Board Cloning will have time delay on the high frequency signal, the main effect of Add accordions is to supplement the signal tracks with less time delay from the same group, and these lines normally don’t have or have less logic processing then other signals; the most typical one is time clock wire, normally it won’t need any other logic processing, as a result of that, its delay will be less than other signals;

High speed digital printed circuit board’s equal track can maintain the delay difference of various signals within a scope, to ensure the effectiveness of reading data within the same cycle period (if the delay difference more than one clock cycle will mis-read the data from next cycle), so generally engineer will require the delay won’t exceed one fourth of the clock cycle.

At the same time wire delay of each unit length is fixed, normally speaking the delay is related to the track width, length and copper thickness, board layer structure acquired from Printed Circuit Board Cloning, but over-length track will increase the dissipated capacitance and dissipated inductance then deteriorate the quality of signal. As a result of that the clock IC lead must connect to the RC terminal which Add accordions is not for the effect of inductance.

On the contrary, inductor can migrate the ultraharmonics in the upgrading item, and causing the signal quality deterioration, consequently it is necessary to have the space between Add accordions tracks must be at least 2 times of other tracks, and shorter time of signal upgrading, it is easier to be affected by the dissipated capacitor and dissipated inductors.