GATE ECE 2008 | Question: 14

Question

Which of the following is true?

• A. A silicon wafer heavily doped with boron is a $p^{+}$substrate
• B. A silicon wafer lightly doped with boron is a $p^{+}$ substrate
• C. A silicon wafer heavily doped with arsenic is a $\mathrm{p}^{+}$substrate
• D. A silicon wafer lightly doped with arsenic is a $p^{+}$ substrate