Yes Encounter covers the full flow, as said you may need caliber for sign-off DRC. Also you may need additional licences of CeltIC for signal integrity.
1) First Encounter(FE) has been widely used in Prototype/Floorplan/Power Plan tasks even before it has been acquired by Cadence.
2) RTL Compiler(RC) has been adopted to do RTL-to-gate level logic synthesis recently. (It used to be Get2Chip's product before merged by Cadence.)
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