reproduction paper researching in Ultra-low voltage (ULV) clock tree design
DP+DME algorithm is proposed by Xin Zhao in 2010[1] to optimize clock tree slew and skew at ULV. The reproduction code is located in DP_DME folder.
In [2], Seok proposed an un-buffered H-tree (or few clock buffer level) method to dramatically reduce clock skew variation at ULV. For impressive purpose , the buffered-Htree with limited buffer stage level is implemented in H-Tree folder.
[1]Zhao, Xin, et al. "Variation-aware clock network design methodology for ultralow voltage (ULV) circuits." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 31.8 (2012): 1222-1234.
[2][Seok, Mingoo, David Blaauw, and Dennis Sylvester. "Robust clock network design methodology for ultra-low voltage operations." IEEE Journal on Emerging and Selected Topics in Circuits and Systems 1.2 (2011): 120-130.