Patent ID: 7521302
Filing Date: 2009-04-21
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device having a plurality of transistors on a single substrate, comprising: forming a first insulation layer on the substrate; exposing a portion of the substrate by etching the first insulation layer using a resist; growing an epitaxial layer on the exposed portion of the substrate so as to create a height difference between the epitaxial layer and an upper surface of the substrate bordering the epitaxial layer; removing the patterned first insulation layer; and forming a first transistor on the epitaxial layer and a second transistor on the substrate bordering the epitaxial layer respectively including a gate region and a source/drain region, wherein the first transistor and the second transistor are insulated from each other by the height difference between the substrate and the epitaxial layer without an isolation region between the source/drain region of the first transistor and the source/drain region of the second transistor.