Patent ID: 7063742
Filing Date: 2006-06-20
Classification: C30B,Y10S

Abstract:
1. An n-type semiconductor diamond, characterized by a making method comprised of: mechanically polishing a (100) diamond surface to make it in an inclined diamond substrate; subjecting a surface of said inclined diamond substrate to a hydrogen plasma treatment to make said substrate surface to consist of steps each in the order of an atomic layer; and subjecting said substrate surface consisted of steps each in the order of an atomic layer to an exited raw material gas made of a volatile hydrocarbon compound, a sulfur compound and a hydrogen gas by a microwave plasma to cause n-type semiconductor diamond to grow epitaxially on said surface consisted of steps each in the order of an atomic layer, wherein said n-type semiconductor has a single donor level of 0.38 eV, which is sufficient to allow operation of said n-type semiconductor diamond as p-n junction device.