A novel low-trigger and high-holding voltage SCR without externally- assisted circuitry for area-efficient on-chip ESD protection

A novel SCR device, called uSCR, has been presented for low-voltage IC´s ESD protection applications. This is the first time an SCR can possess a trigger voltage as low as 7 V without using any external triggering circuitry and a holding voltage as high as 6 V without sacrificing the ESD robustness, while at the same time consuming an area of only 2400 mum² Experimental results of HBM and CDM testing have verified the on-chip protection capability of the uSCR device.