What is charge sharing in vlsi?

Charge sharing in VLSI (Very Large Scale Integration) refers to the phenomenon where charge is redistributed among capacitive nodes during a switching event, particularly in dynamic circuits like CMOS. This can lead to unintended voltage levels at certain nodes, potentially causing logic errors or affecting the stability of the circuit. Charge sharing is particularly critical in low-power and high-speed designs, where it can impact performance and reliability. Proper design techniques, such as careful sizing of transistors and capacitors, are employed to mitigate its effects.