Patent ID: 6339233
Filing Date: 2002-01-15
Classification: H01L,H01S

Abstract:
A semiconductor device, comprising:an electrically conductive III-V doped semiconductor substrate having mutually opposite first and second main surfaces and a first conduction type; two pn junctions disposed above said first main surface, at least one pn junction of said two pn functions being reverse biased during operation of the semiconductor device; at least one functional semiconductor structure disposed above said two pn junctions, said functional semiconductor structure being electrically insulated from said second main surface of said III-V doped semiconductor substrate; a first doped III-V semiconductor layer of a second conduction type disposed between said III-V doped semiconductor substrate of said first conduction type and said at least one functional semiconductor structure; and a second doped III-V semiconductor layer of said first conduction type disposed between said at least one functional semiconductor structure and said first doped III-V semiconductor layer in such a way that said III-V semiconductor substrate, said first doped III-V semiconductor layer and said second doped III-V semiconductor layer form said two pn junctions, a first pn junction of said two pn junctions being disposed in an opposite direction of a second pn junction of said two pn junctions.