Sci-Five | The Hindu Science Quiz: on semi-conductors

1 / 5 |
What is a semi-conductor?

• A material that is a perfect insulator
• A material with electrical conductivity between that of metals and insulators
• A type of metal used in computers
• A material with no electrical conductivity

2 / 5 |
How can the conductivity of a semiconductor be adjusted?

• By heating it to a high temperature
• By cooling it to a low temperature
• By adding small amounts of other elements
• By applying electrical current

3 / 5 |
What is a “chip” in the context of semiconductor manufacturing?

• A piece of metal used in electrical circuits
• A simple switch
• A complex structure made of millions or billions of transistors and components
• A random collection of circuits

4 / 5 |
What is the typical diameter of silicon wafers used in chip manufacturing?

5 / 5 |
 Approximately how many steps can be involved in processing a wafer into a chip?