Patent ID: 8169057
Filing Date: 2012-05-01
Classification: H01L,Y10S

Abstract:
1. A positive-intrinsic-negative (PIN)/negative-intrinsic-positive (NIP) diode comprising: a semiconductor substrate having first and second main surfaces opposite to each other, the semiconductor substrate being of a first conductivity; at least one trench having sidewalls and a bottom formed in the first main surface, the at least one trench extending to a first depth position in the semiconductor substrate; at least one mesa proximate the first main surface being defined by the at least one trench; a first anode/cathode layer encompassing the first main surface and the bottom and sidewalls of the at least one trench, the first anode/cathode layer being of a second conductivity opposite to the first conductivity; a second anode/cathode layer proximate the second main surface, the second anode/cathode layer being the first conductivity; and a passivation material lining the at least one trench and the at least one mesa.