Patent ID: 8222642
Filing Date: 2012-07-17
Classification: H01L

Abstract:
1. A field-effect type transistor comprising: a source electrode; a drain electrode being a metal electrode; a semiconductor layer provided between said source electrode and said drain electrode in an X-direction and being in contact with both of said source electrode and said drain electrode; and a gate electrode provided to face at least a part of said semiconductor layer in a Z-direction perpendicular to said X-direction, wherein said gate electrode comprises: wherein an end portion of the first gate electrode on a side of the drain electrode is provided at a position facing a central portion of a channel region formed in said semiconductor layer, said second gate electrode is so connected as to have a same potential as said drain electrode and is electrically isolated from said first gate electrode, and at least a part of said second gate electrodes is so provided as to face in said Z-direction a connection portion between said semiconductor layer and said drain electrode.