Composite structure for electronic devices and method of making the same

摘要

Composite structure for electronic devices has a growth substrate intermediate layer with a crystallographic lattice structure and a diamond layer on this. The intermediate layer has zinc blende, diamond of CaF2 structure and a fixed orientation between is lattice and that of the substrate. The difference between the lattice constants of the intermediate layer and substrate is less than 20%, esp. less than 10% at the beginning of the intermediate layer. At the junction between the intermediate and diamond layers, their lattice constants are given by the equation: (n*aI-m*aD) /n*aI = less than 0.2, esp. less than 0.1 (where n, m = natural numbers; aD = the lattice constant of the diamond layer; aI = the lattice constant of the intermediate layer at the junction with the diamond layer). Also claimed is a method of producing the composite.