Which of the Following Statements About Extrinsic Semiconductors Is INCORRECT

question 51

Multiple Choice

Which of the following statements about extrinsic semiconductors is INCORRECT?

• A) They are generally made from pure Si or Ge with small amounts of impurities.
• B) n-type are those in which the impurity is an element of Group 15.
• C) p-type are those in which the impurity is an element of Group 13.
• D) The crystal need not be very pure before the impurity is added to produce the semiconductor.
• E) Boron is a common impurity in n-type extrinsic semiconductors.

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