 With present technologies all of them need to be timing-aware for a design to properly meet its timing requirements, but with technologies in the range of the micrometre only logic synthesis EDA tools had such a prerequisite.Nevertheless, even if timing-awareness was extended to all these steps starting from well-established principles used for logic synthesis, the two phases, logic and physical, of the timing closure process are conventionally handled by different design teams and different EDA tools.Design Compiler by Synopsys, Encounter RTL Compiler by Cadence Design Systems and BlastCreate by Magma Design Automation are examples of logic synthesis tools.