I believe N# are names of various process nodes. Shorthand, people refer to something as the "5nm node" but really there may be multiple (processes | nodes | te

I believe N# are names of various process nodes. Shorthand, people refer to something as the "5nm node" but really there may be multiple (processes | nodes | technology nodes | process nodes | process technologies) that are "5nm". wikichip has five nodes listed under "5 nm lithography process", two of which are TSMC's: - N5 - N5P so N1 would be a hypothetical future process that can produce '1nm' "features".