Transmission line signal propagation delay

Pis are used in mieroeleetronies industry as interdielectric layers, passivation layers and a-particle barriers. The electrical performance of Pis in these applications is dictated by its dielectric constant and can be further improved by reducing the dielectric constant. The propagation velocity of signal in microelectronic devices is inversely proportional to the square of the dielectric constant of the propagating medium. Therefore, signal propagation in microelectronics devices is faster, when the dielectric constant is low. Fnrther, lower dielectric constant materials reduce crosstalk between adjacent circuit lines and transmission delay time. 

Delay line A transmission network that increases the propagation time of a signal traveling through it. 

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