Patent ID: 6929983

Claim:
A method of forming a current-controlling device on a substrate, the method comprising: forming a first insulating layer on the substrate; creating a first conductor on the first insulating layer; shaping the first conductor to form a first tunneling contact area; forming a second insulating layer on the surface of the first conductor; creating a second conductor on the first and second insulating layers; shaping the second conductor to form a second tunneling contact area; planarizing the first conductor, the second insulating layer, and the second conductor to form a single planarized surface and a tunneling barrier between the first tunneling contact area and the second tunneling contact area, the tunneling barrier comprising the second insulating layer; forming a third insulating layer on the single planarized surface; introducing at least one mobile charge within at least one of the insulating layers, the mobile charge positionable within the tunneling barrier; and creating a gate contact on the third insulating layer.