Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
1998-05-27
2001-02-20
Teska, Kevin J. (Department: 2768)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C700S098000
Reexamination Certificate
active
06192507
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a novel method for generating an electrical circuit comprising dielectrics.
INTRODUCTION TO THE INVENTION
Our motivation and methodology for the present invention are informed by an illustrative situation which centers on models for VLSI chip and package interconnects as well as microwave circuits. The computation of capacitances represents a central part of the electrical modeling for all these structures. Many of these structures involve the presence of different dielectrics regions. The dielectrics may be anisotropic and/or inhomogeneous, depending on the application.
SUMMARY OF THE INVENTION
It is necessary to calculate the capacitances of arbitrary three dimensional structures that may involve single or multiple regions of dielectric material. The material may be anisotropic and/or inhomogeneous, and vary from one part of the structure to the other.
We have now discovered a novel method for the computation of capacitances for multiconductor conductor problems in the presence of various dielectric bodies. The method involves a circuit consisting of two sets of capacitances, one that accounts for the dielectric volumes and a second that accounts for the conductors and dielectric interfaces. The computation of capacitance is accomplished by exciting the conductors of this circuit and then observing the total charges established on the conductors. This method is equally applicable to other capacitance computation problems for which the capacitances of a multiconductor situation are of interest. In this way, we advantageously solve the above problem, and fulfill an important need.
The new method comprises the steps of:
1. specifying a first electrical circuit comprising a three dimensional geometry, said geometry having a first volume portion consisting of a dielectric and a second portion consisting of a conductor;
2. identifying within said geometry regions comprising same of different dielectric constants; and
3. generating a second electrical circuit derived from the first electrical circuit, said second electrical circuit characterized by capacitive couplings;
(a) localized to said conductor portion;
(b) localized to dielectric interfaces;
(c) localized to dielectric volumes; and
(d) between conductor and dielectric interfaces.
REFERENCES:
patent: 5610833 (1997-03-01), Chang et al.
patent: 5675499 (1997-10-01), Lee et al.
patent: 5764533 (1998-06-01), DeDood
patent: 5901063 (1999-05-01), Chang et al.
patent: 6016390 (2000-01-01), Mali et al.
patent: 6057171 (2000-05-01), Chou et al.
patent: 6061508 (2000-05-01), Mehrotra et al.
patent: 6066179 (2000-05-01), Allan
Elsherbeni et al. (“Coupling between two-conductor multi-layer shielded microstrip transmission line”, Proceedings SSST '93, Twenty-Fifth Southeastern Symposium on System Theory, 1993, Mar. 7, 1993, pp. 6-10).
Kolbehdari et al. (“Finite and infinite element analysis of coupled cylindrical microstrip line in a nonhomogeneous dielectric media”, Proceedings of IEEE Southeastcon '95, Mar. 26, 1995, pp. 269-273).
Wang et al. (“Fabrication and microwave characterization of multilayer circuits for MMIC applications”, IEE Proceedings on Microwaves, Antennas and Propagation, vol. 143, No. 3, Jun., 1996, pp. 225-232).
Affane et al. (“Quasi static analysis of hybrid and monolithic integrated circuits interconnections”, Procedings of 43rd Electronic Components and Technology Conference, Jun. 1, 1993, pp. 1055-1060).
Rubin Barry Jay
Ruehli Albert Emil
International Business Machines - Corporation
Kaufman, Esq. Stephen C.
Kik Phallaka
McGinn & Gibb, P.C.
Teska Kevin J.
LandOfFree
Method for generating an electrical circuit comprising... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for generating an electrical circuit comprising..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for generating an electrical circuit comprising... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2583443