Patent ID: 9704852
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A field effect diode comprising: a junction structure having an L-shape in cross-section, said junction structure comprising a planar portion and a fin portion, said fin portion extending in a first direction from said planar portion, said planar portion extending in a second direction perpendicular to said first direction, said fin portion having a top surface distal to said planar portion in said first direction, said top surface being co-planar with said planar portion, said top surface lying in a different plane from said planar portion, said planar portion having an end surface distal to said fin portion in said second direction, said end surface being co-planar with said fin portion, and said end surface lying in a different plane from said fin portion; an anode positioned at said top surface of said fin portion; a cathode positioned at said end surface of said planar portion; a first gate insulator contacting a surface of said fin portion extending in said first direction, said first gate insulator contacting said surface of said fin portion between said top surface and said planar portion; a first gate conductor contacting said first gate insulator, said first gate insulator being positioned between said first gate conductor and said surface of said fin portion; a second gate insulator contacting a surface of said planar portion extending in said second direction, said second gate insulator contacting said surface of said planar portion between said end surface and said fin portion; and a ballast resistor contacting said second gate insulator, said second gate insulator being positioned between said ballast resistor and said surface of said planar portion.