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FEA and Modeling of Mechanical Microstructures

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VPI is a Electrical Engineer and Computer Scientist, Micro-Electro-Mechanical Systems (MEMS) Specialist, Micro-fuel Cell Technology Consultant, RF and High-Frequency Packaging Technology Consultant with world-class expertise in technology related to micro-fuel cells for portable applications, military research, micromachined silicon pressure diaphragms, RF and high-frequency packaging, diffractive optics for fiber-optic networking, micromirror arrays for projection displays, acoustic imaging for medical diagnostics, and automated package testing of IC's & MEMS.

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Finite-element analyses (FEM & FEA) play a vital role in modeling mechanical microstructures for sensors, actuators, microflow (gaseous and liquid) systems, and high frequency (>30 GHz) RF wireless systems. These "small" microystems while often trivial in geometry interplay into macrosystems in a much less trivial way, often affecting, for example - stability and accuracy of sensors, parasitics due to packaging, and interface issues of micro to macro that manifest themselves in issues of performance, manufacturing, and robustness.

A biomedical sensors manufacturer came to us with problems manufacturing microchannels and microchambers for FTIR spectroscopy. Their issues of holding material tolerances and the inability to singulate structures from wafer form into diced form without breakage and appropriate cleanliness led us to a more manufacturable process that strengthened the bonding process using improved techniques validated by FEA, fashioned geometries to preclude contamination, and held tighter tolerance on material thicknesses and mechanical performance. The process was prototyped in-house and transferred into high volume production at one of our partner foundries.

Read other articles by this KKAI Associate:

Fluid Hammer Case Study

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Electrical Engineer and Computer Scientist, Micro-Electro-Mechanical Systems (MEMS) Specialist, Micro-fuel Cell Technology Consultant, RF and High-Frequency Packaging Technology Consultant, technology related to micro-fuel cells for portable applications, military research, micromachined silicon pressure diaphragms, RF and high-frequency packaging, diffractive optics for fiber-optic networking, micromirror arrays for projection displays, acoustic imaging for medical diagnostics, and automated package testing of IC's & MEMS.
Resume of LDL ultrasonic nondestructive evaluation expert, ultrasonic transducer design consultant, expert in ultrasonic phased arrays, acoustic imaging, acoustic microscopy, ultrasonic sensors, electrical engineer, engineering failure analysis, forensic analysis, investigation, consulting services
Resume of RIS materials engineer, mechanical engineer, engineering failure analysis, accident reconstruction consultant, specialist, forensic analysis investigation expert witness testimony, engineering consulting services
Resume of KJE electrical engineer, high voltage engineering expert, electrical power engineer, high voltage maintenance and safety training consultant, testing engineer, engineering failure analysis, accident investigation, accident reconstruction, specialist, forensic analysis investigation expert witness testimony, engineering consulting services
Resume of JMG mechanical engineer, engineering manager, product design and documentation, engineering consultant, fatigue failure analysis, accident investigation, accident reconstruction, specialist, forensic analysis, investigation, product liability, expert witness testimony,

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Kevin Kennedy & Associates, Inc.
Rapid Response Engineering® Solutions
3905 Vincennes Road, Suite 320
Indianapolis, Indiana 46268
(317) 536-7000 voice
(317) 536-7220 fax

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