Semiconductor devices (diodes, transistors) are smaller than vacuum tubes because

Question

Semiconductor devices (diodes, transistors) are smaller than vacuum tubes because (A) they are made from silicon/germanium crystals (B) they have very high density (C) large crystals of semiconductors have large resistance (D) flow of charge carriers are within the solid itself

Tardigrade Admin · Accepted Answer

The supply and flow of charge carriers in the semiconductor devices are within the solid itself.
No external heating or large evacuated space is required by the semiconductor devices, so they have small sizes.

Q. Semiconductor devices (diodes, transistors) are smaller than vacuum tubes because

they are made from silicon/germanium crystals

they have very high density

large crystals of semiconductors have large resistance

flow of charge carriers are within the solid itself

The supply and flow of charge carriers in the semiconductor devices are within the solid itself. No external heating or large evacuated space is required by the semiconductor devices, so they have small sizes.

The supply and flow of charge carriers in the semiconductor devices are within the solid itself.
No external heating or large evacuated space is required by the semiconductor devices, so they have small sizes.