difference between pin diode and pn junction diode
PIN diode The wide intrinsic region is in contrast to an ordinary p–n diode. The wide intrinsic region makes the PIN diode an inferior rectifier (one typical function of a diode), but it makes it suitable for attenuators, fast switches, photodetectors, and high voltage power electronics applications.
IEEE 754-1985 The leading 1 bit is omitted since all numbers except zero start with a leading 1; the leading 1 is implicit and doesn't actually need to be stored which gives an extra bit of precision for "free."
Inverter (logic gate) If no specific NOT gates are available, one can be made from NAND or NOR gates, because NAND and NOR gates are considered the "universal gates",[1] meaning that they can be used to make all the others.
p–n junction In a pâ€“n junction, without an external applied voltage, an equilibrium condition is reached in which a potential difference is formed across the junction. This potential difference is called built-in potential   V  b i   {\displaystyle V_{\rm {bi}}} .