The first transistor was invented in 1938.

More Questions from Semiconductor Principles

• A covalent bond is when atoms lose valence shell electrons.
• Germanium is the most widely used semiconductor material because of its stability at high temperatures.
• The n-type semiconductor material is doped by adding material with electron holes.
• The P-N junction is a barrier to electron flow.
• The forward voltage drop for a germanium transistor is 0.7 V and for a silicon transistor is 0.3 V.

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