Patent ID: 8803208
Filing Date: 2014-08-12
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a substrate; a gate, which is formed on the substrate; a source and a drain, which are located on opposite sides of the gate; and at least one contact, which contacts with the source and/or the drain, wherein the source includes a source in-situ doped layer formed inside the substrate and a raised source layer on the source in-situ doped layer, the drain includes a drain in-situ doped layer formed inside the substrate and a raised drain layer on the drain in-situ doped layer, and the at least one contact has an enlarged end which is in contact with the source and/or the drain, wherein the enlarged end of the at least one contact has a diamondoid cross section and the enlarged end of the at least one contact is located inside both the raised source layer and the source in-situ doped layer, and/or the enlarged end of the at least one contact is located inside both the raised drain layer and the drain in-situ doped layer.