Korean Chip Giants Plot Massive Expansion to Oust Chinese Rivals
Samsung and SK hynix plan massive capacity expansions to reclaim conventional DRAM market share from Chinese rivals like CXMT.
South Korean semiconductor titans are gearing up for a strategic offensive to reclaim the conventional memory chip market from Chinese competitors. By aggressively expanding their production capacity, industry leaders like Samsung Electronics and SK hynix aim to close the gap that allowed Chinese manufacturers to gain a foothold during recent supply shortages.
The Gap That Let China In
For a period, South Korean manufacturers pivoted their focus toward high-margin memory chips designed for artificial intelligence (AI) applications. While this move capitalized on the AI boom, it inadvertently created a void in the market for lower-priced, conventional DRAM. This supply shortage provided a golden opportunity for Chinese firms, such as ChangXin Memory Technologies (CXMT), to expand their presence and capture price-sensitive market segments.
Kim Hyung-joon, head of the Next Generation Intelligence Semiconductor Foundation, noted that the current memory shortage is staggering, estimated at 30-40 per cent. This is a massive leap compared to the historical supply imbalances of around 2 per cent that typically triggered price swings.
A Two-Pronged Strategy: AI and Conventional DRAM
The goal for South Korean chipmakers is no longer to choose between AI and conventional memory, but to dominate both. By increasing their overall production capacity, Samsung and SK hynix intend to continue serving the lucrative AI market while simultaneously flooding the conventional DRAM segment to push back Chinese rivals.
"The conventional memory cycle has fundamentally changed," Kim told The Korea Herald, suggesting that the industry is now operating under entirely different dynamics.
The Battle of the Wafers: Current Standing
The scale of current operations highlights the dominance of the "Big Three," though the competition remains fierce. Estimated monthly DRAM wafer capacities are as follows:
- Samsung: Approximately 720,000 wafers
- SK hynix: Approximately 550,000 wafers
- Micron Technology (USA): Between 300,000 and 400,000 wafers
Combined, these three giants process between 1.57 million and 1.67 million DRAM wafers every month.
Massive Infrastructure Blitz
To secure their future, South Korean firms are investing in colossal manufacturing hubs, particularly in the Yongin region south of Seoul:
- SK hynix: Planning four fabrication plants at its Yongin semiconductor cluster. The first plant alone could eventually process 350,000 wafers monthly—representing over 60 per cent of the company's current total capacity.
- Samsung: Planning six fabrication plants at a separate Yongin complex and continuing the expansion of its Pyeongtaek campus.
While the specific product mix for these ten planned facilities remains undisclosed, the sheer scale indicates a move toward overwhelming market supply. Meanwhile, US-based Micron is also scaling up with new facilities in New York and Idaho.
The Risk of Oversupply
Despite the aggressive growth, the industry faces a looming shadow: the risk of a market glut. If the demand for AI infrastructure fails to keep pace with the massive increase in output from these new "fabs," the market could face a severe oversupply, leading to crashing chip prices.
However, experts suggest that modern manufacturers have more flexibility than they did in previous cycles. They can now adjust construction schedules and the speed of production ramp-ups to better align with real-time market conditions, providing a safety net against a total market collapse.