CMOS in VLSI
The reasons for the dominant use of CMOS Technology in the fabrication of VLSI chips are reliability, low power consumption, considerably low cost, and most importantly scalability.
CMOS (Complementary Metal-Oxide-Semiconductor) technology widely employs VLSI (Very Large-Scale Integration) for implementing digital integrated circuits. CMOS presents several advantages that render it a preferred choice for VLSI applications:
CMOS circuits consume minimal power compared to other logic families, rendering them suitable for battery-operated devices and energy-efficient applications. This occurs because CMOS consumes power solely during transistor state switches, thereby minimizing static power dissipation.
CMOS technology furnishes high noise immunity, indicating that CMOS circuits are less vulnerable to noise and interference, culminating in enhanced reliability and performance in noisy environments.
CMOS circuits can function across a broad spectrum of supply voltages, facilitating the design of circuits for varied voltage levels and power necessities.
CMOS Technology
CMOS technology enables integrating a multitude of transistors and intricate logic functions onto a single chip, resulting in heightened integration levels and enhanced functionality in VLSI designs.
CMOS logic inherently aligns with digital design, making it ideal for implementing digital circuits like microprocessors, memory chips, and digital signal processors in VLSI systems.
CMOS technology benefits from continuous advancements in semiconductor manufacturing processes, permitting the fabrication of smaller transistors and denser chips, thus enhancing performance and reducing cost per function over time.
Overall, CMOS technology assumes a pivotal role in VLSI by delivering low-power, high-performance, and scalable solutions for implementing digital integrated circuits across a diverse array of applications, spanning from consumer electronics to industrial automation and beyond.