Question

Circle the right answer(s). Some questions may have multiple answers.

Which item is NOT one of the roles of silicon dioxide (SiO₂):
a. Insulator
b. Doping barrier
c. Passivation
d. Conductor

Answer 1

The role of silicon dioxide (SiO₂) does not include being a conductor. It acts as an insulator and is involved in other functions such as doping barrier, passivation, and semiconductor components.

Step-by-step explanation:

The role of silicon dioxide (SiO₂) does not include being a conductor. Silicon dioxide is an insulator which means it does not allow the movement of charges through it. It acts as a doping barrier, a passivation layer, and a component in semiconductors.