What’s New in CoventorWare® 10

The CoventorWare 10 suite features a new, fast-frequency-sweep algorithm for analyzing piezoelectric bulk acoustic wave (BAW) resonators such as FBARs and higher-mode resonators such as laterally vibrating resonators (LVRs) and contour-mode resonators (CMRs). Currently, most simulations of these types of resonators are done in 2D because full 3D simulations can take days to complete. Using the unique  fast-frequency-sweep algorithm in CoventorWare, 3D simulation results for the full frequency range of interest typically can be obtained in under an hour (at least 10X faster than the competition). This greatly reduced simulation time makes it feasible to perform design studies to mitigate the effects of spurious modes that are not predicted by 2D analysis. The routine setup and post-processing tasks required to simulate a multi-port device and extract Butterworth-Van Dyke parameters have been completely automated with a script. The script even outputs Touchstone-format files for use in RF circuit simulators such as Keysight Technologies ADS.

LVR 3D results

3D results for LVR: peak mode (left); admittance (right) with simulated response (blue) and BVD model (red)

Other highlights of CoventorWare 10 include:

  • a new tutorial on simulating a piezo bulk acoustic wave resonator (an LVR) using the fast-frequency-sweep algorithm and automation with scripting;
  • a new tutorial on micro-bolometer analysis;
  • a new section on gas damping in the display mirror tutorial; and
  • support for the Red Hat Enterprise Linux Desktop 6 operating system.

In addition, this release includes many minor enhancements and bug fixes in the Console, Preprocessor and MemMech modules that improve the usability and robustness of the suite.

New features from CoventorWare 2014

Of course CoventorWare 10 includes all of the improvements recently delivered with the previous release:

Faster simulations

  • The MemElectro electrostatics solver was optimized for multi-core systems, providing up to 5X speedup on large test cases
  • A completely new CoSolveEM implementation with new “accelerated coupling” algorithm is up to 3X faster

Enhanced usability

  • Simplified user interface for all coupled electromechanics
  • Solver progress is reported on the Job Queue tab
  • New scripting interface for mesh and material transforms enables automation of sensitivity studies of design and manufacturing variables

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