The Calibre xL tool offers designers fast, and accurate extraction of full-chip frequency dependent loop inductance and loop resistance, and automatically accounts for return path change with frequency. Calibre xL extraction highly correlates with field solvers and provides silicon-tested accuracy.
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Increasing operating frequencies for analog/RF designs mean interconnect inductance parasitic extraction is now required to ensure accurate circuit performance and high reliability. Automated field solver-based inductance extraction of both self and mutual parasitics enables IC companies to deliver analog/RF chips that provide the intended level of performance and reliability.
With increasing operating frequencies, interconnect lines exhibit inductive effects, with significant impact on chip behavior and performance. Parasitic on-chip inductance extraction is crucial for accurate simulation and timely tape-out of high-frequency RF, mixed signal and custom digital designs.
Full-chip parasitic self-inductance extraction. Accurate frequency-dependent loop inductance and resistance extraction. Efficient model order reduction. Return-path selection and net-based extraction frequency selection.
Fully integrated with Calibre LVS, xACT, and xRC. Accurate analysis of high-frequency effects in nm technology. Easy re-simulation without loss of accuracy. Silicon-tested accuracy for analog, RF and custom digital designs.
Calibre xL is a fast and accurate inductance field-solver based engine for extracting the parasitic inductance of signal interconnects.
Loop Inductance is the default mode where parasitic inductance associated with signal/return-path virtual “loops." Partial Inductance is a mode to parasitic “inductance” associated with a straight wire segment where the consideration of the return path takes place during simulation.
Partial Extraction (PEEC) is recommended for RF and Analog critical signals, differential pairs connected to VCO LC tank, or in case a user wants to netlist inductance for power/ground nets (however it's not recommended for large power/gnd networks). Loop extraction mode is recommended to extract full block interconnects, large nets or to extract shielded transmission lines (with return path).
Yes, Calibre xL has a min length capability to extract long nets. This enables the flow and netlist to be efficient. Default min length is 100um, while user can modify this min length value.
At DC or low frequencies, electric current distributes homogeneously over the cross-section of conductors. This is the assumption for parasitic R values in RCC extraction. At high frequencies, current may be “crowded” at the outer surface of the conductor which increases the resistance value. This phenomenon is called the skin effect.
Yes, Calibre xL extracts the skin effect for all nets that are processed by xL engine.
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