Semiconductor Engineering

The History Of CMOS

Since CMOS has been around for about 50 years, a comprehensive history would be a book. This blog focuses on what I consider the major transitions. Before CMOS, there was NMOS (also PMOS, but I have ...
EDN

Models for high-voltage transistors in a standard CMOS process

Designers of electronics and communications systems are constantly faced with the challenge of integrating greater functionality on less silicon area. Many of the system blocks – such as power ...
PC Magazine

CMOS transistor

The most widely used integrated circuit (IC) technology. Although the term CMOS "transistor" is widely used, it is somewhat misleading because in order to reduce power consumption, CMOS is actually ...
EDN

Introduction and Comparison of 74HCT TTL Compatible CMOS Logic

This document tackles the basic facts of the 74HCT TTL Compatible CMOS components. It includes a comparison between its sub-family of components. Suggestions on what CMOS to use on a specific ...
Electronic Design

Use Hybrid PMOS-NMOS Active Loads To Cut Substrate Noise In Differential Amplifiers

PMOS transistors are less vulnerable to substrate noise since they’re placed in separate wells; designers implement guard rings to attenuate the substrate noise propagation. However, substrate noise ...
Semiconductor Engineering

The Good Kind Of Bias

Back gating, body bias, substrate bias, and back bias all refer to a technique for dynamically adjusting the threshold voltage of a CMOS transistor. CMOS transistors are often thought of as ...