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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Srivastava, N. Suaya, R. Banerjee, K. |
| Copyright Year | 2010 |
| Description | Author affiliation: Mentor Graphics, Grenoble, France (Suaya, R.) || University of California, Santa Barbara, USA (Banerjee, K.) || Mentor Graphics, Wilsonville, OR, USA (Srivastava, N.) |
| Abstract | We present an efficient and highly accurate approach to high-frequency impedance extraction for VLSI interconnects and intentional on-chip inductors. The approach is based on a three-dimensional (3D) loop formalism that uses discrete complex images approximations applied to a quasi-magnetostatic treatment of the vector potential, resulting in closed-form expressions for the impedance matrix of current filaments in the presence of a multi-layer substrate. Populating the impedance (Z) matrix for 3D configurations of finite transverse dimensions (including non-Manhattan wires and inductors) is computationally inexpensive, and includes substrate eddy current effects that become quantitatively important in the frequency regime beyond 20 GHz which is imminent at the 45 nm technology node onwards. The accuracy, as exemplified by the magnitude of inductor impedance |Z|, is within 5% of a full-wave electromagnetic field solver for frequencies up to 100 GHz, with an order of magnitude lower computation cost. The proposed method represents a core technology for incorporation into system level extraction of analog systems consisting of multiple inductors and nearby interconnects, for CMOS on-chip circuits in the nanometer era. |
| Starting Page | 459 |
| Ending Page | 464 |
| File Size | 239973 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424470549 |
| ISSN | 15301591 |
| e-ISBN | 9783981080162 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-03-08 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | European Design Automation Association (EDAA) |
| Subject Keyword | Impedance Inductors Integrated circuit interconnections Frequency Very large scale integration Closed-form solution Wires Eddy currents Electromagnetic fields Computational efficiency |
| Content Type | Text |
| Resource Type | Article |
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