Semiconductor BTU furnace for semiconductor?

A semiconductor is a solid whose electrical conductivity is in between that of a conductor and that of an insulator, and can be controlled over a wide range, either permanently or dynamically.

semiconductors which are in its extremely pure form are known as intrinsic semiconductors

We can make extrinsic semiconductor by adding impurities into an intrinsic semiconductor.

Semiconductors are insulators at low temperatures and reasonably good conductors at higher temperatures. semiconductors whose ability to conduct electric lies between those of conductor and...

Intrinsic refers to the doping -- intrinsic semiconductors are not doped. Whether compound or not, if they are not doped they are intrinsic.