Tako wrote on Jan 3rd, 2018, 2:03pm:You'll find models of transistors, for example in books as Razavi and Baker and others.
The original poster wanted models for 180nm or smaller, which one is not likely to find in books.
But LTspice uses a syntax that's very similar to HSpice, and may in fact read HSpice model files if they use mostly "standard" Spice syntax. I think I've seen 180nm (0.18u) model libraries - maybe from MOSIS? - available on the web, without requiring an NDA or contract from a foundry.