Transistors are used in almost every electronic device now made. A transistor is an electrically controlled resistor that has three terminals: two for the end-to-end flow of electrical current and one for the electrical signal that controls its...

In 1947 Bell Laboratories scientists invented the transistor—a semiconductor device that could amplify electrical signals transmitted through it. Those in the "know" recognized the significance of the transistor as a compact,...

The transistor is the fundamental component of most analog and digital circuits. A transistor consists of a piece semiconducting crystal (usually silicon, but sometimes germanium or gallium arsenide) with which impurities such as antimony, bismuth,...

A transistor, broadly speaking, is a solid-state switch that allows a small signal to control a large signal, such as a current flow. The first transistor was invented by John Bardeen, Walter Brattain, and William Shockley in 1945. They were awarded...

Since World War II, no invention has made a larger impact on the communications field than the transistor, which replaced old-fashioned vacuum tubes in electronic equipment. The transistor revolutionized electronic technology and created a billion...

Solid-state semiconductor device for amplifying, controlling, and generating electrical signals. Invented at Bell Labs (1947) by John Bardeen, Walter H. Brattain, and William B. Shockley, it displaced the vacuum tube in many applications. Transistors...

A transistor is a semiconductor device, commonly used as an amplifier or an electrically controlled switch. The transistor is the fundamental building block of the circuitry in computers, cellular phones, and all other modern electronic devices. Because...