The info page for the vlsi tag states:
it is used as a generic term to mean ICs in common usage.
and it is similar to the integrated-circuit tag info.
Also, the Wikipedia page states:
Very large-scale integration (VLSI) is the process of creating an integrated circuit (IC)
The term "VLSI" is a bit generic, and when the tag is added to questions, it typically refers to ICs.
I tried to suggest this as a synonym, but I do not meet the criteria to do so.