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MCMM

Multi-mode multi-corner (MMMC) analysis refers to performing STA across multiple operating modes, PVT corners and parasitic interconnect corners (rcworst , cworst etc ) at the same time.

MCMM file is To analyse the design over various modes and corners . 

VLSI design can be modeled in either functional or test mode etc

Each mode at varied process corners.

We need to ensure that the design is stable across all corners (PVT corners ).

Mode : A mode is defined by a set of clocks, timing constraints, Supply voltage and libraries. Many chip have multiple modes such as functional modes, test mode, sleep mode, etc

Corner: A corner is defined as a set of libraries characterized for process, voltage, and temperature variations (cell line) and interconnect corner .Corners are not dependent on functional settings; they are meant to capture variations in the manufacturing process, along with expected variations in the voltage and temperature of the environment in which the chip will operate 



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