Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2007-07-10
2007-07-10
Dinh, Paul (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000, C703S002000, C703S013000
Reexamination Certificate
active
10820365
ABSTRACT:
Responding to a single command, a layout versus schematic (LVS) tool processes layout data describing positions of conductors on layers of an IC to produce data representing a shape recognition layer depicting boundary shapes of spirals of drawn inductors. The boundary shape of a spiral is the shape of the spiral as viewed from above with all of the layers of conductive material forming the spiral superimposed. The LVS tool then processes the shape recognition layer data to identify the type and position of each drawn inductor, to determine whether each inductor's spiral turns are of uniform width and spacing, to detect connectivity violations, and to determine parameters relating to the shape of the spiral from which its inductance can be computed.
REFERENCES:
patent: 5497337 (1996-03-01), Ponnapalli et al.
patent: 5892425 (1999-04-01), Kuhn et al.
patent: 6500722 (2002-12-01), Wada et al.
patent: 6560567 (2003-05-01), Yechuri
patent: 6588002 (2003-07-01), Lampaert et al.
patent: 6775807 (2004-08-01), Lowther et al.
patent: 2002/0184603 (2002-12-01), Hassibi et al.
patent: 2004/0183156 (2004-09-01), Lowther
patent: 2005/0125751 (2005-06-01), Miller et al.
patent: 2005/0229126 (2005-10-01), Wang et al.
Frlan et al. “Computer aided design of square spiral transformers and inductors [MIC application]”, Jun. 13-15, 1989, Microwave Symposium Digest, 1989., IEEE MTT-S International, pp. 661-664 vol. 2.
Lingling et al., “A simple equivalent circuit model CMOS multi-level spiral inductors”, Aug. 18-21, 2004 , Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings, pp. 562-565.
Yu et al., “Frequency-independent equivalent-circuit model for on-chip spiral inductors”, Mar. 2003 , Solid-State Circuits, IEEE Journal of□□vol. 38, Issue 3, pp. 419-426.
Feng et al., “Large-scale broadband parasitic extraction for fast layout verification of 3D RF and mixed-signal on-chip structures”,Jun. 6-11, 2004 , Microwave Symposium Digest, IEEE MTT-S Internationalvol. 3, pp. 1399-1402 vol. 3 □□.
Masoumi et al., “Fast and efficient parametric modeling of contact-to-substrate coupling”, Nov. 11, 2000 , Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on, vol. 19, Issue pp. 1282-1292.
Niknejad et al., “Analysis, design, and optimization of spiral inductors and transformers for Si RF ICs”, Oct. 1998 , Solid-State Circuits, IEEE Journal of, vol. 33, Issue 10, pp. 1470-1481.
Ban-Leong et al., “A comprehensive explanation on the high quality characteristics of symmetrical octagonal spiral inductor”,Jun. 8-10, 2003, Radio Frequency Integrated Circuits (RFIC) Symposium, IEEE, pp. 259-262.
Ooi et al., “Modified inductance calculation with current redistribution in spiral inductors”,Dec. 2003 , Microwaves, Antennas and Propagation, IEE Proceedings-, vol. 150, Issue 6, pp. 445-450.
Stojanovic et al.,“Comparison of optimal design of different spiral inductors”, May 16-19, 2004 ,Microelectronics, 24th International Conference on,vol. 2, pp. 613-616 vol. 2 □□.
Lee et al., “Design of spiral inductors on silicon substrates with a fast simulator”, Sep. 22-24, 1998 ,Solid-State Circuits Conference, ESSCIRC '98. Proceedings of the 24th European,pp. 328-331.
Zhu et al., “Micromachined on-chip inductor performance analysis”, Jan. 19-23 2003 ,Micro Electro Mechanical Systems, MEMS-03 Kyoto. IEEE The Sixteenth Annual International Conference on, pp. 165-168.
Arcioni et al., “Design and characterization of Si integrated inductors”, May 18-21, 1998 , Instrumentation and Measurement Technology Conference, IMTC/98. Conference Proceedings. IEEE, vol. 2, pp. 1395-1401 vol. 2.
Mednick Kenneth
Wang Xiao-jun
Cadence Design Systems Inc.
Dinh Paul
Rosenberg , Klein & Lee
Rossoshek Helen
LandOfFree
IC layout physical verification method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with IC layout physical verification method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IC layout physical verification method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3810572