Patent ID: 6620662
Filing Date: 2003-09-16
Classification: H01L

Abstract:
A method for forming a transistor, comprising:providing a single crystal substrate having a lattice constant; forming a channel layer disposed over the substrate, the channel layer having a lattice constant different from the lattice constant of the substrate; forming a Schottky layer over the channel layer, the Schottky layer having a lattice constant different from the lattice constant of the substrate; forming a resistive layer disposed over the Schottky layer; forming a contact layer over the resistive layer with the contact layer having a first recess therein, such first recess having a bottom surface terminating in a top surface of the resistive layer; and forming a second recess having sidewalls in the resistive layer and the Schottky layer, such second recess having a bottom surface terminating in the Schottky layer.