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When a p-type semiconductor material is bonded to an ntype semiconductor material and terminals are added, the resulting structure does not have the property that:
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- ideally, the forward bias resistance is zero
- as temperature is increased above room temperature, the material resistance decreases because the doping material charges are ‘freed’
- both holes and electrons contribute to the current flows
- the resistance increases with increasing doping
Correct Option: D
When a p-type semiconductor material is bonded to an n-type semiconductor material and terminals are added, the resulting structure have the property that—
* Ideally, the forward bias resistance is zero.
* As temperature is increased above room temperature the material resistance decreases because the doping material charges are freed.
* Both electrons and holes contribute to the current flow.
* The resistance decreases with increasing doping since the excess carriers due to doping contribute to the current flow. i.e. large current means less resistance. This statement is incorrect in the given problem.
