Patent ID: 6191432
Filing Date: 2001-02-20
Classification: H01L

Abstract:
A semiconductor device comprising:a superlattice comprising a first semiconductor layer having a first band-gap, a second semiconductor layer having a band-gap narrower than said first band-gap, said superlattice having a band structure with an energy level of a conduction band of said second semiconductor layer being lower than an energy level of a conduction band of said first semiconductor layer and an energy level of a valence band of said second semiconductor layer being lower than an energy level of a valence band of said first semiconductor layer, or a band structure with an energy level of a conduction band of said second semiconductor layer being higher than an energy level of a conduction band of said first semiconductor layer and an energy level of a valence band of said second semiconductor layer being higher than an energy level of a valence band of said first semiconductor layer;an exposed face formed on a plane different from a plane orientation on which said superlattice is formed, an end face of said superlattice being exposed to said exposed face; anda channel selectively formed on said exposed face.