# SK keyfoundry Develops 'Bi-SCR-Based On-Chip EMC Protection Technology' to Enhance Automotive Semiconductor Reliability

- Link: https://www.thailand-business-news.com/pr-news/sk-keyfoundry-develops-bi-scr-based-on-chip-emc-protection-technology-to-enhance-automotive-semiconductor-reliability
- Published: 2026-06-25T07:00:00+07:00
- Author: PR Newswire

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SEOUL, South Korea, June 25, 2026 /PRNewswire/ — SK keyfoundry, an 8-inch pure-play
foundry in Korea, announced that it has recently developed a ‘Bi-SCR (Bi-directional
Silicon Controlled Rectifier)-based On-Chip EMC protection technology’ capable of
dramatically enhancing the EMC (ElectroMagnetic Compatibility) of automotive semiconductors.
The company stated it has successfully applied this technology to its 0.13-micron
BCD (Bipolar-CMOS-DMOS) process products and has entered mass production.

As the integration of electronic components in vehicles rapidly increases, ensuring
the reliability of semiconductors to operate without malfunction even under extreme
electrical stress conditions has emerged as a core challenge. While conventional
ESD (ElectroStatic Discharge) protection devices  were primarily limited to controlling
momentary discharges during the chip manufacturing or assembly processes, this newly
developed technology is a design solution that enables complete on-chip control 
of harsh system-level EMC environments, including those required by automotive standards
such as ISO 10605, where electrical stress can occur continuously during vehicle
operation.

The ‘Bi-SCR’ structure implemented by SK keyfoundry offers flexible trigger-voltage
adjustment and excellent high-current handling capability. In particular, it possesses
high area efficiency, delivering outstanding performance in optimizing the protection
capabilities of automotive power ICs, which face severe space constraints and require
high integration. Most notably, it is highly significant as an ‘On-Chip’ solution
that can effectively control EMC stress internally without the need for external
protection components like TVS (Transient Voltage Suppressor) diodes, which were
previously essential in system designs. Through this, customers can maximize circuit
design and space efficiency while elevating system protection performance to the
highest level.

This achievement is regarded as the fruit of combining SK keyfoundry’s unique automotive
BCD process technology accumulated over the years with its advanced EMC and ESD 
protection design capabilities. Leveraging this successful mass production as a 
stepping-stone, the company plans to continuously expand its portfolio of protection
devices based on high-voltage LDMOS, BJT, SCR, and diodes. Furthermore, it aims 
to strengthen its market competitiveness across various automotive applications 
that require high reliability, such as automotive PMICs (Power Management ICs), 
motor drivers, and power control ICs.

"In the recent automotive semiconductor market, beyond simple component-level ESD
performance, ‘EMC robustness’ under actual harsh automotive electronic system environments
is emerging as a core competitive edge," said Derek D. Lee, CEO of SK keyfoundry."
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." He added, "We will continue to strengthen the high-reliability, high-
voltage, and high-efficiency process platforms demanded by our automotive customers
and solidify our differentiated foundry competitiveness."

**About SK keyfoundry**

Headquartered in Korea, SK keyfoundry provides specialty Analog and Mixed-Signal
foundry services for semiconductor companies to serve a wide range of applications
in the consumer, communications, computing, automotive and industrial industries.
With a broad range of technology portfolios and process nodes, SK keyfoundry has
the flexibility and capability to meet the ever-evolving needs of semiconductor 
companies across the globe. Please visit [https://www.skkeyfoundry.com](https://www.skkeyfoundry.com/)
for more information.

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