We present an efficient layout decomposition flow and the corresponding optimization algorithms to minimize the stitches for double patterning *** the given power/ground preprocessing method for the flow reduces the c...
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ISBN:
(纸本)9781467397209
We present an efficient layout decomposition flow and the corresponding optimization algorithms to minimize the stitches for double patterning *** the given power/ground preprocessing method for the flow reduces the complexity, and improves the speed and quality to the layout decomposition. Experiments show that our algorithms can effectively get the better results compared with other reported algorithms.
Process variation results in up to an order of magnitude variation in on/off ratios, which significantly depresses the yield of the sub-threshold circuits. This paper presents low power sub-threshold adders using sens...
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ISBN:
(纸本)9781467397209
Process variation results in up to an order of magnitude variation in on/off ratios, which significantly depresses the yield of the sub-threshold circuits. This paper presents low power sub-threshold adders using sense amplifier-based pass transistor logic(SAPTL). Based on the simulations in 130 nm CMOS process, the proposed two-phase synchronous SAPTL adder exhibits stronger robustness to process variations when compared to the ripple carry adder using standard cell circuits. And the adder based on AdSA-SAPTL features much less power consumption than synchronous SAPTL adder.
Proper generalizeddecomposition (PGd) is a new model order reduction (MOR) method based on the use of separated representations. In this work, PGd is applied on 3d capacitance extraction of interconnects in ic to red...
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The interaction between steady current field and thermal field occurs in various engineering applications. The fields are mutually two-way coupleddue to the heat generated by electric current and temperature-dependen...
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ISBN:
(纸本)9781509010332
The interaction between steady current field and thermal field occurs in various engineering applications. The fields are mutually two-way coupleddue to the heat generated by electric current and temperature-dependent resistivity. It is a computational challenge to analyse such multiphysics problems when the geometric structures are complex. One possibility for reducing the computational costs is to acquire relatively accurate solutions with less unknowns that results from coarser mesh. This paper utilizes the complementarity of dual finite element formulations of steady current field to accelerate convergence of the coupling analysis. The performance and convergence are demonstrated with a micro-resistor beam benchmark problem.
The Tonti diagram conceives a general mathematical structure for several physical fields, and hence provide uniform topological operators to establish global stiffness matrices for various field solvers in differentia...
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ISBN:
(纸本)9781509010332
The Tonti diagram conceives a general mathematical structure for several physical fields, and hence provide uniform topological operators to establish global stiffness matrices for various field solvers in differential forms. The discrete geometric method implements the Hodge discretization of constitutive laws through the division of geometric parameters of primal anddual meshes. Complying with Tonti diagrams, it can be achieved as an elegant solution for multiphysics problems intuitively and practicably. The stationary electro-thermo-mechanical coupled problem, including building of the constitutive equations and treating of the coupling terms, is studied. A typical problem with regard to thermo-mechanical stress induced by resistive losses in a through-silicon-via (TSV) structure of 3dic is investigated.
The Galerkin FEM based on GBCs over polygon or polyhedron are heavily time consuming. In light of the simple shape functions in simple geometric elements, such as triangle, tetrahedron, a fast three-dimensional interp...
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ISBN:
(纸本)9781509010332
The Galerkin FEM based on GBCs over polygon or polyhedron are heavily time consuming. In light of the simple shape functions in simple geometric elements, such as triangle, tetrahedron, a fast three-dimensional interpolation FEM based upon piecewise interpolation technique over convex polygonal prism mesh is presented. The polytope is divided into several sub triangular prisms according to its barycenter, where the shape functions of all vertexes on the whole volume are easily and quickly acquired. The presented method has the advantage over the frequently-used GBCs in computational costs. A capacitance extraction example in integrated circuits (ics) is performed and shows that the polytope FEM has good convergence and high accuracy.
Proper generalizeddecomposition (PGd) is a new model order reduction (MOR) method based on the use of separated representations. In this work, PGd is applied on 3d capacitance extraction of interconnects in ic to red...
详细信息
ISBN:
(纸本)9781509010332
Proper generalizeddecomposition (PGd) is a new model order reduction (MOR) method based on the use of separated representations. In this work, PGd is applied on 3d capacitance extraction of interconnects in ic to reduce its computational complexity. To make the PGd solver feasible, the complex geometries are simplified by a characteristic function technique. 3d singular value decomposition (SVd) of the characteristic functions is avoided by a reformulation of the PGd algorithm. A numerical example is given to verify the method.
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