The Six Semi is actively developing high-performance memory PHYs in various technology nodes.  

 

TSS PHY Foundry Tech Node Availability Silicon Proven
GDDR6 PHY TSMC N12 FFC Now Yes
LPDDR54 PHY Samsung Foundry 14LPP/LPU Now Yes
LPDDR54 PHY TSMC N12 FFC Now Yes
LPDDR4 PHY TSMC N22 ULP Now Q3 2022
HBM3 PHY TBD Q2 2022 Q2 2022