| |
|
|
|
|
|
Problems XV
- The most extensively used semiconductor is the _____?
- Semiconductor whose electron and hole concentrations are equal?
- A pair of electron and hole may also disappear due to _____?
- The conductivity of a pure semiconductor is relatively low but can be greatly increased by introducing a small amount of specific impurities into the crystal. This process is called _____?
- If the substance used in doping has more than four valence electrons, it is known as _____?
- The resistance of a semiconductor is known as _____?
- Thse are commonly used as donor impurities in Si?
- The free electrons produced after doping requires only _____ to be detached?
- Donor-doped semiconductor becomes a _____?
- P-type semiconductor has an excess of _____?
- The amount of kinetic energy by which an electron increases when it falls through a potential of 1V and is equal to 1.6x10-19J is _____?
- The minority carriers in N-type are _____?
- When a p-type and n-type materials (semiconductor) are brought together, some free electrons in the n-type and some holes in the p-type recombines at the junction and therefore produces and area or region where no free electrons nor holes exist. This region is called _____?
- The device that is formed when a p-type and n-type semiconductor material were brought together is known as _____?
- The terminal connected to the p-type and n-type materials of a junction diode are respectively called as _____?
Copyright, © 2001, dwct-ece review online. All Rights Reserved.