SBIR Phase I: Magneto-electric-MEMs-enabled wireless power for medical implants

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$150,000.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
1113641
Award Id:
n/a
Agency Tracking Number:
1113641
Solicitation Year:
2010
Solicitation Topic Code:
NM
Solicitation Number:
n/a
Small Business Information
5 Constitution Way, Woburn, MA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
106736585
Principal Investigator:
RobertO'Handley
(781) 935-7878
bob@ferrosi.com
Business Contact:
RobertO'Handley
(781) 935-7878
bob@ferrosi.com
Research Institute:
Stub




Abstract
This Small Business Innovative Research (SBIR) Phase-I project will develop micro-electro-mechanical-systems (MEMS) comprised of engineered magneto-electric (ME) materials to enable wireless power transfer systems for medical implants. Engineered ME materials are composites of magnetostrictive (M) and electro-active (E) components that convert magnetic fields into voltages much more efficiently than do natural MEs. Incumbent wireless power technologies rely on coils to convert time-dependent magnetic fields, generally at radio frequencies, into useful power. Bulk ME receivers, though not yet optimized, show increasing sensitivity advantages over comparable-size, high-permeability coil receivers as frequency and/or device size decreases. A series of several dozen generic MEMS resonators (cantilevers, bridges, plates in different sizes and aspect ratios) were designed with high-Q, epitaxial piezoelectric films grown on single-crystal substrates. Phase I of the new program includes characterizing the mechanical integrity and resonance characteristics of the piezoelectric MEMS substrates. Photo-resist masks for selected devices will be designed to allow deposition of M films on the piezoelectric resonators to create generic ME-MEMS devices. These devices will be packaged and tested for received power-per-unit-magnetic-field at different frequencies and field strengths. Data will be analyzed and compared with that for bulk ME and coil devices. The broader impact/commercial potential of this project should extend well beyond development of smaller and more efficient wireless power systems for implanted medical devices. High-performance ME wireless power receivers have not yet been made at the MEMS scale. This research program will develop new thin film processing techniques for deposition of high Q amorphous magnetic films and CMOS-compatible, piezoelectric films on each other that would impact many technical markets including magnetic and/or acoustic sensors, communications systems capable of operation in environments that hinder conventional radio transmission, and possibly new multifunctional components for intelligent electronic systems. Successful development of ME-MEMS receivers will enable a variety of engineered ME devices, such as: i) magnetometers that could rival SQUID magnetometers in sensitivity while consuming far less power and operating at room temperature rather than L-He temperatures, ii) systems for low-frequency communications in high-absorption environments where RF systems fail; iii) advanced processes for co-deposition of magnetic and electro-active films, enabling new applications of multi-functional ME-MEMS devices.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government