Patent ID: 7936041
Filing Date: 2011-05-03
Classification: H01L

Abstract:
1. A structure for millimeter-wave frequency applications, comprising: a Schottky barrier diode (SBD) with a cutoff frequency (F a first collector in a substrate of the wafer having a first depth, the first collector being comprised by the SBD; a first epitaxial layer on the substrate; a first conducting channel in the first epitaxial layer; a second collector in the first epitaxial layer at a location remote from that of the SBD having a second depth, different from the first depth, the second collector being comprised by a high performance NPN device; a second epitaxial layer on the first epitaxial layer; a second conducting channel in the second epitaxial layer; and a well tailor region in the first epitaxial layer and the second epitaxial layer over the first collector.