1.

Which of the following is added as an impurity to p-type material in diffusion process?

A. Phosphorous pentaoxide (P<sub>2</sub>O<sub>5</sub>)
B. Phosphorous oxychloride (POcl<sub>3</sub>)
C. Boron oxide (B<sub>2</sub>O<sub>3</sub>)
D. None of the mentioned
Answer» D. None of the mentioned


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