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15.2.3 Literal attributes

The literals of the rule expressions may have attributes. Literal attribute are mostly for back-end tool-specific use.

— Macro: lvt

Specifies that a transistor has low-Vt type, mainly for netlist generation and LVS checking.

— Macro: svt

Specifies that a transistor has standard-Vt type, mainly for netlist generation and LVS checking. This is also the default type, when Vt is left unspecified.

— Macro: hvt

Specifies that a transistor has high-Vt type, mainly for netlist generation and LVS checking.

Ideas:

Instance-specific attributes?

Procedural layout?

Automatic sizing