MEMS Analysis Tool

MEMS Analysis Tool

The MEMS Analysis Tool is a post-analysis software. It provides quantitative and precise space and frequency analysis of the 3D time sequence of topographies (4D) recorded by DHM® for both periodical and non-periodical phenomenons.

Measure any MEMS characteristics

  • Mode shapes
  • Vibration maps : Amplitude & Phase
  • Displacements, velocities and accelerations
    • along any direction
    • at any place in the field of view
    • for any structure
  • Frequency response
  • Electrical response

Compare simulation with measurements

  • Post-analyze your data anywhere at anytime
  • Export data in open formats for advanced analysis
  • Define your own analysis templates to compare efficiently batches of samples

Disseminate your work efficiently

  • Measure samples that you could not before
  • Illustrate publication and conference presentations with videos
Vibration Map @ 773 kHz. Courtesy of Lemoptix, Lausanne, Switzerland
cMUT @ 8MHz : Time-sequence of topographies. Courtesy of Fraunhofer IPMS, Dresden, Germany
cMUT @ 8MHz : Amplitude vibration map
cMUT @ 8MHz : Phase vibration map

Advanced algorithms for In- & Out-of-plane analysis

MEMS Analysis Tool contains powerful algorithms to analyze 3D time sequence of MEMS topographies in term of in- and out-of-plane displacements.

Combine and compare

  • Displacement, vibration amplitude
  • Velocity
  • Acceleration
  • Electrical response
Combine any measurements in a single graph

From SMALL vibrations …

  • Edge tracking, Fourier and sub-pixel algorithm
  • Down to nanometers in-plane
  • Down to picometers out-of-plane
Edge tracking algorithm

… to LARGE displacements

  • Pattern tracking algorithm
  • Up to millimeters in-plane
  • Up to tens of micrometers out-of-plane
Pattern tracking algorithm

Characterization of complex motions and geometries

  • Plate tilt
  • Rotation
  • Moving parts with holes and structures
  • Link to publications
Variable capacitor: complex motions and structures analysis

A complete toolbox for frequency response analysis

Frequency response is one of the most important MEMS characteristics. MEMS Analysis Tool provides several methods to toggle between time domain and frequency domain. This analysis can be applied to both in- and out-of-plane displacements, as well as to the electrical recording performed by the stroboscopic module.

Bode Analysis

  • Bode phase and amplitude diagrams
  • Q factor
Bode diagrams

Fourier Analysis

  • Fourier transform from time domain to frequency domain
  • Fourier filtering from frequency domain to time domain
Fourier Analysis

Harmonic Analysis

  • Fundamental, second, third and fourth harmonic amplitudes
  • Application example: MEMS microphone and speaker
Harmonics Analysis

Modes shapes, for efficient comparison with simulations

MEMS Analysis Tool enables visualization and analysis of both 4D topography and of mode shape sequences . This second representation is very useful when the amplitudes of vibrations are much smaller than the structural dimensions, and for efficient comparison with simulations results.

4D Topography sequence of actuator @ 143k Hz
Mode shape : Amplitude vibration map @ 143 kHz
Mode shape : Phase vibration map @ 143 kHz

Unique 4D analysis tools

MEMS Tool encompasses efficient tools enabling dynamical 4D data analysis. Profile cuts, grids are among other unique tools that will bring you a new insight in your device, revolutionizing their development. Data can be exported as text files or as video image sequences.

“Array” tool, for multiple devices analysis

  • Fast analysis of array of structures
  • Cross talks between individual device
  • Compatible with stitching for large device
  • A post analysis: no need to define a grid prior to measurement!
MEMS Analyis software "array tool"

“Dynamic profile cut” tool

  • Almost unlimited points per profile cut
  • Determination of membranes collapse voltage
  • Quantitative comparison of deflection of multiples devices
Profile of a non-collapsed MUT membrane @ 200kHz. Courtesy of team n°5, INSERM U930, Université de Tours (France)