A

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Q. The material used to fabricate IMPATT diodes is GaAs since they have the highest efficiency in all aspects.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

Explanation by: Admin

impatt diodes can be fabricated using silicon, germanium, gaas or indium phosphide. out of these materials, gaas have highest efficiency, low noise and high operating frequencies. but gaas has a major disadvantage of complex fabrication process and higher cost. so, gaas are not preferred over silicon and germanium.

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