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EMX is an electromagnetic simulator for high-frequency, RF, and mixed-signal integrated circuits. Our unique emphasis is on complete automation coupled with uncompromised speed and accuracy. EMX has been benchmarked by our customers to be more than an order of magnitude faster than the leading finite-element and boundary element tools in the industry. EMX is built on a philosophy of maximal automation, with industry-standard input and output formats, full scriptability from the command line, and automated handling of modern IC layout features.

EMX is a planar 3D, integral equation solver that uses a very accurate representation of Maxwell's equations. It features:

3D conductors and vias
true volumetric currents to accurately account for skin effect
accurate sidewall capacitances
layered and lossy substrate effects
substrate and inter-component coupling.

EMX is particularly easy to use even for complicated geometries in modern IC processes. It supports

automated handling of mask-ready layout, with no need for hand editing
automatic merging techniques for via arrays
context-dependent vias
slotting rules
metal and dummy fill
boolean operations for layer generation
width and spacing dependent metal bias
scaling operations to port technologies to half-nodes

EMX is very efficient because of advanced numerics, such as:

Multipole-accelerated far-field interactions for fast matrix construction
advanced meshing and compression techniques to reduce matrix memory requirements
iterative solvers and robust preconditioning for quick matrix solution
a well-conditioned matrix formulation, even at low frequencies
automated reduced-order modeling for fast frequency sweeps

EMX is used by foundries and semiconductor design houses for tasks such as:

characterization of passive component libraries
design of spiral inductors, MOM capacitors, MIM capacitors, baluns and transformers.
design of RF test structures
modeling large distributed power transistors
simulation of high-Q passive-in-package filters
extraction of complete RF circuits

EMX is fully integrated into Cadence Virtuoso:

Interface for both Cadnce 5.1 and Cadence 6.1
Pcells for inductors, transformers, stacked inductors, pcells, tcoils
Cadence Design kit support for various foundries (TSMC, IBM, GLOBALFOUNDRIES and UMC)
Convenient "minimalist" interface to Cadence