Semiconductor industry and market
Which appropriately describes generation names (node names) of advanced processes such as the '3 nm generation'?
- AThey mean the gate length is exactly 3 nm
- BThey mean the wafer thickness is 3 nm
- CIn recent years, they have become generation labels that do not necessarily match physical dimensions such as actual gate length
Show answer and explanation
Answer: C. In recent years, they have become generation labels that do not necessarily match physical dimensions such as actual gate length
Process generation names once roughly corresponded to dimensions such as gate length, but after the introduction of FinFETs and other changes, recent generation names have become labels indicating gains in performance and density, not directly tied to actual dimensions. The same name can mean different densities at different companies.