What is CMOS?

"Complementary Metal Oxide Semiconductor" is what this term stands for. It is a method of making integrated circuits. CMOS circuits are used in a variety of electrical parts, such as picture scanners for digital cameras, batteries, and microprocessors.

The transistors in CMOS components known as MOSFETs are referred to as "MOS" in CMOS (metal oxide semiconductor field-effect transistors). The "metal" in the term is a little deceptive because polysilicon is frequently used in contemporary MOSFETs in place of aluminum as the electrical substance. Each MOSFET has a gate, which is isolated from the transistor's body, as well as two contacts (the "source" and "drain"). Electrons can move between the source and drain contacts when sufficient power is introduced between the gate and body.

The N-type and P-type semiconductors that are present in each transistor are referred to as the "complimentary" parts of CMOS. More electrons than holes, or locations where an electron might be, are present in N-type semiconductors. In comparison to electrons, holes are more abundant in P-type semiconductors. Depending on how the circuit is constructed, these two transistors may cooperate to create logic circuits.

CMOS Benefits

The effective way in which CMOS circuits use electricity is well known. Except when switching between states, they don't need electrical power. The complementary transistors also cooperate to restrict the output voltage. As a consequence, the system uses little electricity and generates little heat. Because of this, CMOS transistors have taken the place of older models (like CCDs in photo sensors) and are now found in the majority of contemporary CPUs.



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