Patent ID: 6054719
Filing Date: 2000-04-25
Classification: H01L

Abstract:
A composite structure for an electronic component, comprising:a growth substrate; anda plurality of doped non-diamond layers formed from boronitride;a plurality of undoped diamond layers having a thickness from 0.001 .mu.m to 0.5 .mu.m, andan intermediate layer disposed between each doped non-diamond layer and diamond layer, said intermediate layer comprising an alloy material having a lattice structure selected from the group consisting of a diamond structure, a zinc blend structure and a calcium fluoride structure, whereby charge carriers can be drawn from a doped non-diamond layer through the intermediate layer into an undoped diamond layer,wherein:said undoped diamond layers and said doped non-diamond layers have respective conduction band energy level edges which differ from each other, whereby a band discontinuity exists between said respective conduction band energy level edges in a vicinity of at least a transition interface between said undoped diamond layers and said doped non-diamond layers, so that charge carriers from said doped non-diamond layers which are excited optically or thermally can be conducted, with a reduction in their potential energy, into a valence band or a conduction band of the undoped diamond layers;each undoped diamond layer has a band discontinuity at first and second transition interfaces thereof;a configuration of said respective conduction band energy level edges in said undoped diamond layers and said doped layers forms a plurality of potential wells, with a quantizing effect on energy levels of said charge carriers conducted into the undoped diamond layers.