Kioxia’s 332-Layer NAND Hits 2Tb, Enables Larger SSDs Without PLC
▼ Summary
– Kioxia’s upcoming 332-layer NAND chip will offer 2Tb capacity per die without using Penta-Level Cell (PLC) technology.
– The company’s dual-axis strategy focuses on increasing layer count for higher capacity and improving performance via Charge-Based Architecture (CBA).
– CBA connects CMOS circuitry directly to the memory array, enhancing bandwidth, reducing latency, and lowering power consumption.
– Kioxia is prioritizing process improvements and new controller designs over PLC, unlike some competitors.
– The company has developed high-performance SSDs, including the CM9 series for AI and the LC9 series for large capacity (up to 122TB), based on 8th-gen BiCS FLASH.
Kioxia’s groundbreaking 332-layer NAND technology achieves 2Tb density without relying on PLC storage methods, marking a significant leap forward for high-capacity SSD development. The Japanese memory specialist’s latest innovation forms part of its tenth-generation BiCS FLASH architecture, demonstrating the company’s commitment to pushing boundaries in flash storage solutions.
While some might expect higher density figures, Kioxia’s strategic approach focuses on delivering superior performance and reliability rather than simply chasing maximum capacity numbers. The company’s roadmap suggests even greater SSD capacities are coming through its “Gen X” initiative, all while avoiding the technical compromises associated with Penta-Level Cell technology.
This advancement stems from Kioxia’s unique dual-axis development strategy that simultaneously pursues two critical objectives. The first path concentrates on increasing vertical layer counts to boost storage density, while the second path enhances performance through innovative Charge-Based Architecture (CBA) technology. By directly connecting CMOS circuitry to memory arrays, CBA delivers measurable improvements in bandwidth, latency reduction, and power efficiency.
What sets Kioxia apart is its commitment to maintaining endurance and reliability while increasing storage density. Rather than following competitors down the PLC path, the company is investing heavily in process refinements and next-generation controller designs. This balanced approach ensures that capacity gains don’t come at the expense of product longevity or performance consistency.
The memory manufacturer currently offers two distinct SSD product lines showcasing its technological leadership. The CM9 series delivers cutting-edge performance optimized for AI workloads, while the LC9 series provides massive storage capacity up to 122TB. Both product families leverage Kioxia’s eighth-generation BiCS FLASH with CBA technology, demonstrating the real-world benefits of this architecture for demanding applications.
Looking ahead, Kioxia has teased an ultra-high-performance SSD prototype utilizing its XL-Flash SLC technology. Early indications suggest this solution could surpass 10 million IOPS, with sampling expected to begin in late 2026. This development further underscores Kioxia’s comprehensive approach to addressing diverse market needs across the storage spectrum.
(Source: TECHRADAR)
