A semiconducting component with a Schottky junction with stacked electrodes has a lower electrode forming an emitter or source, a central electrode forming a base or grid and an upper electrode forming either a collector or a drain. Semiconductor material is between the upper electrode and the lower...http://www.google.de/patents/US5175597?utm_source=gb-gplus-sharePatent US5175597 - Semiconductor component with Schottky junction for microwave amplification and fast logic circuits