Metal working – Method of mechanical manufacture – Electrical device making
Patent
1991-07-26
1993-02-23
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
364491, H05K 300
Patent
active
051878640
ABSTRACT:
A method performs global routing of a power line network and a ground line network on an integrated circuit. Pre-formed segments of the ground line network are placed adjacent to functional blocks of the integrated circuit. Ground lines of the functional blocks are connected to the pre-formed segments of the ground line network. In addition, pre-formed segments of the power line network are placed adjacent to the functional blocks of the integrated circuit. Power lines of the functional blocks are connected to the pre-formed segments of the power line network. Once the pre-formed segments have all been placed, the pre-formed segments of the ground line network are connected together and the pre-formed segments of the power line network are connected together.
REFERENCES:
Krohn, Howard E.; An Over-Cell Gate Array Channel Router; p.41.1; 20th Design Automation Conf.; IEEE 1983.
Hudson, J. A., et al.; Rectilinear Area Routing: A Channel Router Approach; IEEE Custom Integrated Circuits Conf., Portland, Oreg.; May 20-23, 1985.
Fukui, Masahiro, et al., Block Interconnection Algorithm For Hierarchial Layout System; IEEE Transactions on Computer-Aided Design, vol. CAD-6, No. 3, May 1987.
Shinichiro Haruyama and Don Fussell, A New Area-Efficient Power Routing Algorithm for VLSI Layout, IEEE, 1987.
D. F. Wong and C. L. Liu, A New Algorithm for Flooplan Design, 23rd Design Automation Conference, 1986, pp. 101-107.
Charles Ng, Sunil Ashtaputre, Elizabeth Chambers, Kieu-huong Do, Siu-tong Hui, Rajiv Mody, and Dale Wong, A Hierarchical Floor-Planning, Placement, and Routing Tool for Sea-of-Gates Designs, Custom Integrated Circuits Conference, IEEE 1989, pp. 3.3.1-3.3.4.
Andrew Strout Moulton, Routing the Power and Ground Wires on a VLSI Chip, a Masters Thesis for the Massachusetts Institute of Technology, MIT/LCS/TR-322, May, 1984.
Xiao-Ming Xiong and Ernest S. Kuh, The Scan Line Approach to Power and Ground Routing, IEEE, 1986.
S. Chowdhury, An Automated Design of Minimum-Area IC Power/Ground Nets, 24th/ACM/IEEE Design Automation Conference, 1987.
Brasen Daniel R.
Wong Dale M.
Echols P. W.
VLSI Technology Inc.
Weller Douglas L.
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