The recent announcement that KANC achieved a 95% production yield for its 4-inch Gallium Arsenide (GaAs) mHEMT process is a pivotal moment for South Korea's high-tech industries.
This isn't just a technical achievement; it marks the crossing of a commercial threshold. Achieving such a high yield on a larger 4-inch wafer, up from a 3-inch standard, dramatically lowers the cost per chip—by an estimated 55%. This cost efficiency is the key to building a real-world domestic supply chain. Soon, KANC plans to release a Process Design Kit (PDK) and offer Multi-Project Wafer (MPW) services, which will allow smaller, fabless companies to design and prototype advanced chips for radar, satellite communications, and 6G networks affordably.
This success didn't happen in a vacuum. The primary driver has been a decade-long quest for technological self-reliance. First, this journey began in earnest back in 2015 when the U.S. declined to transfer four critical technologies for the KF-21 fighter jet, including the AESA radar system. This spurred a national effort to develop these systems domestically, creating a clear and sustained demand for the very components KANC is now able to produce.
Second, a supportive industrial ecosystem has been crucial. The Korean government has actively promoted policies to help chip designers, such as funding MPW programs. Public research institutes like ETRI have set precedents by releasing their own PDKs for Gallium Nitride (GaN) chips, while commercial foundries have also begun offering similar services. This foundation reduced the risk and cost for designers, creating a ready pool of customers for KANC's new process.
Finally, geopolitical risk acted as a powerful catalyst. China's recent export controls on gallium, a raw material essential for GaAs chips, exposed the vulnerability of global supply chains. This uncertainty reinforced the strategic importance of securing the entire production process within Korea, from raw materials to finished high-frequency devices.
In conclusion, KANC's achievement is the result of a powerful convergence. It's where long-term defense strategy, supportive industrial policy, and global supply chain pressures meet, ultimately strengthening Korea's position in the critical technologies of the future.
- GaAs (Gallium Arsenide): A type of semiconductor material used to make integrated circuits for high-frequency applications like mobile phones and radar systems. It's known for its high speed and low signal noise.
- MMIC (Monolithic Microwave Integrated Circuit): A 'chip' that operates at microwave frequencies (GHz). It integrates all the necessary functions for a system like a radar transmitter or receiver onto a single piece of semiconductor.
- PDK/MPW (Process Design Kit / Multi-Project Wafer): A PDK is a set of files that gives designers the 'rules' to design a chip for a specific factory's process. An MPW service allows multiple designers to share the cost of a single production run, making it much cheaper to create prototypes.