semiconductor

Diagram shows the arrangement of silicon atoms after an atom X is doped to form an extrinsic semiconductor.
Rajah menunjukkan susunan atom silikon setelah didopkan dengan atom X untuk membentuk satu semikonduktor ekstrinsik.



Which of the following statements is correct?
Antara yang berikut, yang manakah betul?

A The semiconductor becomes a n-type.
B The majority charge carrier is hole.
C Atom X is a trivalent atom
D Atom X ia an acceptor atom





Answer : A
X is a pentavalon atom. So there will be excess of free electron. N type semiconductor will form.