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Jörg Doblaski of XFAB presented this conceptual view of the state of MEMS design vs. CMOS design
A Lego Block Approach to MEMS Design
April 6, 2015
20nm SRAM Example
SEMulator3D 5.0 – It’s COMING!!!
May 15, 2015

MEMS System Co-Design at DTIP

Published by Gerold Schropfer at May 1, 2015
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  • MEMS
  • TCAD
MEMS-CMOS Autonomous Switched Oscillator presented by Guilherme Brondani Torr (© imec) [1]

MEMS-CMOS Autonomous Switched Oscillator presented by Guilherme Brondani Torr (© imec) [1]

The 17th edition of the Symposium on Design, Test, Integration & Packaging of MEMS and MOEMS (DTIP 2015) took place this year in Montpellier, Southern France, on April 28-30. This conference brings together participants interested in MEMS fabrication with those interested in design tools and methods. While this annual event is always located in Southern Europe, it attracts attendees from both industry and academia from around the world.

It was my pleasure to chair a session titled Co-design for MEMS-based Smart Systems. In recent years, Coventor has made several crucial advancements, now embodied in MEMS+®, to bridge the gap between MEMS device design and system-level simulation. A number of MEMS+ users presented co-simulation results for systems that included inertial sensors, resonators, varactors and micromirrors. It was impressive and gratifying to see their achievements and hear their enthusiasm.

  • Guilherme Brondani Torri of imec presented the co-design of a MEMS-CMOS autonomous switched oscillator. He investigated how the dynamic response is affected by the operating point and environmental parameters. The co-simulation of MEMS and circuitry made it possible to identify important issues related to the stability of the proposed oscillator. [1]
  • Gaelle Lissorgues of ESSIE talked about a complete system design for an RF tunable agile filter. The parametric MEMS+ models for MEMS varactors and switches allowed optimizing the design with respect to manufacturing variations. Automated transfer of the MEMS+ model into Verilog-A allows for system-level simulation in ADS including RF performance estimation.[2]
  • Alessandro Sanginario of IIT Torino presented a MEMS+ based methodology for MEMS-IC-package co-design. The methodology takes into account the effects of thermally-induced stress on the package on inertial sensor transient behavior. He stated that, being an electronic designer, “it’s fantastic” to have a MEMS-package model in your familiar simulation language. [3, 4]
  • Fabio Cenni of ST Micro discussed a new extension to SystemC for MEMS system analysis, named SystemC-AMS/MDVP (Analog/Mixed Signal/Multi-Domain Virtual Prototyping) . This allows co-simulating not only MEMS with electronic hardware, but also with control software. The approach supports different levels of abstraction which allows balancing accuracy and simulation time. Fabio’s presentation was accompanied by a poster, written by Benoit Vernay of Coventor, demonstrating a prototype for automated extraction of a SystemC-AMS reduced-order models from MEMS+. [5, 6, 7]

Finally, my personal favorite was an invited presentation by Johannes Eisenmenger of Carl Zeiss. From a system-integrator point of view, he discussed the opportunities and challenges for EDA tools in developing optical systems. Optimizing such systems with suitable behavioral models is an essential step toward developing products for which new MEMS and other components need to be developed in parallel and their individual specifications depend on mutual interactions and environmental influences. One prominent example is the MEMS mirror matrix, FlexRay, employed in ASML’s 193nm UV lithography equipment for advanced CMOS. [8]

I want to warmly thank our customers for sharing their work with the MEMS system community.

MEMS-CMOS Autonomous Switched Oscillator presented by Guilherme Brondani Torr (© imec) [1]
MEMS-CMOS Autonomous Switched Oscillator presented by Guilherme Brondani Torr (© imec) [1]
Agile Filter assembly using MEMS switches and varactors presented by Gaelle Lissorgues [2]
Agile Filter assembly using MEMS switches and varactors presented by Gaelle Lissorgues [2]
MEMS-Package Co-Design presented by Alessandro Sanginario (© IIT, ST, Coventor) [3]
MEMS-Package Co-Design presented by Alessandro Sanginario (© IIT, ST, Coventor) [3]

References:

Proceedings of International Conference on Design, Test, Integration and Packaging of MEMS and MOEMS (DTIP), Montpellier, France, 27-30 April 2015
[1] Guilherme BRONDANI TORRI (imec / KU Leuven – Belgium), Jan BIENSTMAN, Xavier ROTTENBERG, Harrie TILMANS (imec) ea, Co-Design of a MEMS-CMOS Autonomous Switched Oscillator
[2] Gaelle LISSORGUES (ESIEE Paris – France), Pierre NICOLE (THALES Systèmes Aéroportés – France), Julien PAGAZANI (ESIEE – France) ea, A RF tunable Agile Filter: from component to system design
[3] Alessandro SANGINARIO (Istituto Italiano di Tecnologia – Italy), Sarah ZERBINI (STMicroelectronics – Italy), ea, New design methodology for MEMS-electronic-package co-design and validation for inertial sensor systems
[4] Michelangelo GROSSO (ST-POLITO – Italy), Giuliana GANGEMI, Salvatore RINAUDO (STMicroelectronics – Italy) ea, Enabling Smart System Design with the SMAC Platform
[5] Olivier GUILLAUME, Fabio CENNI (STMicroelectronics – France) ea.,SystemC-AMS/MDVP-based modeling for the virtual prototyping of MEMS applications
[6] Fabio CENNI STMicroelectronics – France) ea, Generation of user-defined input stimuli for virtual prototyping of MEMS sensors applications
[7] Benoit VERNAY, Arnaud KRUST (Coventor – France), ea, SystemC-AMS Simulation of a Biaxial Accelerometer based on MEMS Model Order Reduction
[8] Johannes Eisenmenger, Opportunities and challenges of Electronic Design Automation of MEMS-ASIC Systems – A system integrator’s perspective (INVITED)

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Gerold Schropfer
Gerold Schropfer
Dr. Gerold Schröpfer is Technical Director for Europe and for the MEMS business operations worldwide. For the last ten years, Gerold has been responsible for overseeing Coventor’s European MEMS and semiconductor business activities, including the management of R&D programs, industrial and academic partnerships, and external business relationships. Dr. Schröpfer has more than 20 years of relevant experience in MEMS and semiconductor design, process development and EDA product development. Prior to his current position at Coventor, Gerold carried out pioneering work in the design and development of inertial, tire pressure and magnetic sensors at Sensitec and SensoNor (Infineon). Dr. Schröpfer holds a PhD in engineering science from the University of Neuchâtel (Switzerland) and Franche-Comté (France), as well as a degree in physics from the University of Giessen (Germany).

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