To address this issue, SK keyfoundry, an 8-inch foundry in Korea, has developed on-chip electromagnetic compatibility (EMC) protection technology based on a bidirectional silicon-controlled rectifier (Bi-SCR). BCD process technology combines analog (bipolar), digital (CMOS), and power (DMOS) transistors onto a single silicon die. In particular, it’s said to possess high area efficiency, optimizing the protection capabilities of automotive power ICs, which face severe space constraints and require high integration. According to SK keyfoundry, this achievement was made possible by combining SK keyfoundry's automotive BCD process technology with its EMC and ESD protection design capabilities. "The successful mass production and application of this Bi-SCR-based on-chip EMC protection technology is a significant technological milestone that has elevated the reliability and system stability of automotive semiconductor products to the next level."