Patent ID: 8576211

Claim:
An electronic element comprising: a substrate; a first electrode layer formed on a portion of the substrate; an insulating layer formed on the first electrode layer; a conductive layer where a voltage control device for applying a voltage is not disposed thereon, the conductive layer being formed on the insulating layer formed on an area where the first electrode layer is formed; a second electrode layer formed on one area where the first electrode layer on the substrate is not formed; a third electrode layer formed on the other area where neither the first electrode layer on the substrate nor the second electrode layer is formed; a semiconductor layer formed so as to cover between the conductive layer and the second electrode layer and to cover between the conductive layer and the third electrode layer; a first voltage control device for applying a voltage to the first electrode layer; and a second voltage control device for applying a voltage to the second electrode layer and the third electrode layer, wherein a direction of carriers upon applying the voltage using the second voltage control device is regulated such that the carriers are directed from the second electrode layer to the third electrode layer via the conductive layer where the voltage control device is not disposed thereon.