How does PrimeYield CMP work?
PrimeYield-CMP begins by tiling the design, then extracting CMP-related layout parameters for each tile and metal layer from the GDS or Milkyway™ database. These parameters include data on metal density, perimeter and other information. Next, the CMP simulator uses these parameters to create a density and thickness profile for each metal layer. A “heat map” is constructed from these profiles, showing a color-coded grid indicating the relative density or thickness for each tile in the design. The designer uses this heat map to identify design areas that are non-planar and may cause design problems. This same data is also available in a report.
