Vertical SCR Structure for On-Chip ESD Protection in Nanoscale CMOS Technology

Abstract

A vertical silicon-controlled rectifier (SCR) structure utilizing ESD implantation layer was proposed and implemented in nanoscale CMOS technology. Compared with the traditional SCR structure, the proposed structure has lower trigger voltage and high enough ESD protection capability. Therefore, the proposed structure was suitable for ESD protection in nanoscale CMOS process.