Sci-Five | The Hindu Science Quiz: on semi-conductors
Semiconductor chips are seen on a printed circuit board. File
START THE QUIZ
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
A semiconductor is a material that can conduct electricity in some circumstances but block it in others.
Next
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
Conductivity of a semiconductor can be increased by adding either pentavalent or trivalent elements.
Next
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
Chips are complex structures made of millions or even billions of transistors and other components, as well as layers of circuitry connecting the components.
Next
4 / 5 |
What is the typical diameter of silicon wafers used in chip manufacturing?
Slices of highly purified silicon ingots serve as the starting substrate for nearly all chips. Called wafers, these slices are usually 300 mm in diameter.
Next
5 / 5 |
Approximately how many steps can be involved in processing a wafer into a chip?
It can take 500 steps to process a wafer, as layers of material are deposited and removed to create desired patterns.
Next
Published – November 14, 2024 05:00 pm IST
