Hierarchical analog layout synthesis and optimization for...

Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design

Reexamination Certificate

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C716S030000, C716S030000, C716S030000

Reexamination Certificate

active

07823116

ABSTRACT:
In embodiment of the invention, a method of synthesizing a layout of an integrated circuit chip including analog circuitry is disclosed. The method includes receiving a circuit netlist of an integrated circuit chip including analog circuitry; representing and manipulating a hierarchical analog circuit layout including device placement and net routing in response to the circuit netlist, the hierarchical analog circuit layout including a plurality of levels of layout hierarchy; and passing layout information from one level of the layout hierarchy to an adjacent level of the layout hierarchy to synthesize the layout of the integrated circuit chip.

REFERENCES:
patent: 6324678 (2001-11-01), Dangelo
patent: 6470482 (2002-10-01), Rostoker et al.
patent: 2003/0149859 (2003-08-01), Hyduke
patent: 2005/0172248 (2005-08-01), Shimada et al.
patent: 2005/0257178 (2005-11-01), Daems
patent: 2006/0080630 (2006-04-01), Lin
Chowdhury et al.,“Knowledge-Based Analogue VLSI Layout Synthesis”, Nov. 1989, IEE Colloquium on Algorithmic and Knowledge Based CAD for VLSI, Paper Digest, pp. 11/1-11/6.
Chen et al.,“Automatic Custom Layout of Analog ICs Using Constraint-Based Module Generation”, 1991, IEEE Custom Integrated Circuits Conference, Paper Digest, pp. 5.5.1-5.5.4.
Lin, “Incremental Mixed-Signal Layout Generation Concepts, Theory & Implementation”, 2002, Department of Electrical Engineering, Eindhoven University of Technology, Netherlands, Ph. D. Disseration, one set.
Hill, Jason Lester. “System Architecture for Wireless Sensor Networks”. PhD Thesis, University of California Berkeley, Dept of Computer Science. Published May 2003. Internet: URL: http://www.jlhlabs.com/jhill—cs/jhill—thesis.pd>.
International Search Report, Application No. PCT/US/07/73640, “Interactive Hierarchical Analog Layout Synthesis for Integrated Circuits” filed Jul. 16, 2007. Chan, Shufan.
Cohn,J; Garrod,D;Rutenbar,R.;Carley,L. “Analog Device-Level Layout Automation” Kluwer Academic Publishers. 1994. p. 1-285.
Rutenbar,R; Cohn,J. “Layout Tools or Analog ICs and Mixed -Signal SoCs: A Survey.” ISPD. 2000.pp. 76-83.
Lampaert,K; Gielen,G; Sansen,W; “Analog Layout Generation for Performance and Manufacturability” Kluwer Academic Publishers. 1999. pp. 1-175.
Balkur,S; Dundar,G; Ogrenci,A; “Analog VLSI Design Automation” CRC Press. 2003. p. 1-218.
Gielen,G; Rutenbar,R; “Computer Aided Design of Analog and Mixed-Signal Integrated Circuits” IEEE. 2000. pp. 1825-1852.
Kubo, Y; Nakatake,S; Kajitani,Y; Kawakita,M. “Explicit Expression and Simultaneous Optimization of Placemtn and Routing for Analog IC Layouts.” pp. 1-6.
Nojima,T; Zhu,X; Takashima,Y; Nakatake,S. Kajitani,Y. “MultiLevel Placement with Circuit Schema Based Clustering in Analog IC Layouts.” IEEE. 2004. pp. 406-411.
Schnecke,V; Vornberger,O. “Hybrid Genetic Algorithms for Constrained Placement Problems.” IEEE. 1998. pp. 1-14.
Prieto,J; Rueda,A; Quintana,J;Huertas,J. “A Performance Driven Placemeent ALgorithm with Simultaneous Place & Route Optimization for Analog IC's.” ED&TC. 1997.pp. 1-6.
Abthoff,T; Johannes,F. TINA: Analog Placement Using Enumerative Techniques Capable of Optimizing Both Area and Net Length. EURO-DAC 1996. pp. 1-6.
Lin,Z; Huang,Y; Hsiau,K. “LAKE: A Performance-Driven Analog CMOS Cell Layout Generator.” IEEE. 1994. pp. 564-569.
Bhattacharya,S; Jangkrajarng,N; Hartono,R; Shi,C. “Muti-Level Symmetry Constraint Generation for Retargeting Large Analog Layouts.” UWEE. 2004.pp. 1-33.
Pillan,M; Sciuo,D. “Constraint Generation and Placement for Automatic Layout Design of Analog Integrated Circuits.” 1994. pp. 355-358.
Zhang,L; Raut,R; Jiang,Y. “A Placement Algorithm for Implementation of Analog LSI/VLSI Systems.” IEEE. 2004. pp. 77-80.
Office Action for U.S. Appl. No. 11/757,350; Paul Dinh, Apr. 19, 2010; 8 pages.

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