Podcast
Questions and Answers
What is the characteristic of elements in column V that makes them suitable for improving the conductivity of silicon?
What is the characteristic of elements in column V that makes them suitable for improving the conductivity of silicon?
They have five outer shell electrons.
What happens to the extra electron of phosphorus when it is inserted into a silicon wafer?
What happens to the extra electron of phosphorus when it is inserted into a silicon wafer?
It becomes a 'carrier' for current and is free to move around the wafer.
What is the term for silicon that has been 'doped' with phosphorus?
What is the term for silicon that has been 'doped' with phosphorus?
n-type semiconductor
What is the result of a column III element, such as boron, bonding with silicon atoms?
What is the result of a column III element, such as boron, bonding with silicon atoms?
Signup and view all the answers
How does the 'hole' created by boron behave in the silicon wafer?
How does the 'hole' created by boron behave in the silicon wafer?
Signup and view all the answers
What is the term for silicon that has been 'doped' with boron?
What is the term for silicon that has been 'doped' with boron?
Signup and view all the answers
What is the purpose of 'doping' silicon with elements like phosphorus or boron?
What is the purpose of 'doping' silicon with elements like phosphorus or boron?
Signup and view all the answers
Why is phosphorus a good candidate for 'doping' silicon?
Why is phosphorus a good candidate for 'doping' silicon?
Signup and view all the answers
What is the effect of the extra electron introduced by phosphorus on the silicon wafer?
What is the effect of the extra electron introduced by phosphorus on the silicon wafer?
Signup and view all the answers
What is the difference between n-type and p-type semiconductors?
What is the difference between n-type and p-type semiconductors?
Signup and view all the answers
