Sun Microsystems, Inc.

Intel Corporation

Shantanu Ganguly

Sandeep A Aji

Ankur Narang

Daniel Cummings

Hieu T Ngo

Mohammed Hasan Taufique

John Paz

Daniel J Cummings

Embodiments of an apparatus and method to improve power delivery including a pre-charge circuit that may include a first voltage supply rail configured to provide a first voltage amount to perform a first phase of a pre-charge of a bit line and a second voltage supply rail configured to provide a second voltage amount to perform a second phase of the pre-charge of the bit line are described herein. In embodiments, the pre-charge circuit may be a pre charge circuit for a static random-access memory (SRAM) memory cell.

Apparatus and method for improving power delivery in a memory, such as, a random access memory

A method, system, computer system, and computer program product including an algorithm that performs the constraints-based global routing step in the physical design of integrated circuits. The algorithm is based on finding routes for the entire circuit based on constraints being satisfied for the entire design. Initially, for each net, a set of possible routing solutions is determined based on applicable constraints. The possible solutions for the nets are combined to create a highly-connected 'intersection graph,' with each intersection graph node representing a net. The intersection graph is partitioned based on constraints and performance criteria. An optimal solution is determined for each partition. The optimal solutions for the partitions are then combined to produce a global routing solution. The global routing solution is provided to a detailed router, which completes the routing for the design.

Constraint-based global router for routing high performance designs

An automatic and parameterized compute implemented method for transposing wires in an integrated circuit design can y bus lines with similar impedances, and therefore similar signal transmission characteristics. Using a specially designed CAD tool, a user can specify a transposing porn, intervals at which to transpose wires, and a metal layer through which to accomplish the transposing in the integrated circuit. Using a routing database the tool then automatically determines the locations in the design where transposing needs to be performed, re-routes the wires being transposed while optimizing the circuit design space being used, and re-routes (or causes the re-route of) any other wires affected by the transposing process. The result is a new version of the routing database reflecting transposition, but with no change to the circuit's netlist.

System and method for transposing wires in a circuit design

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Austin, TX, United States of America

Shantanu Ganguly