Mauricio PereiraDaCunha

Education

  • Ph.D. in Electrical Engineering, McGill University, Montreal, Canada, 1994.
  • M.Eng. in Electronic Engineering, Escola Politécnica da Universidade de São Paulo, Brazil, 1989.
  • B.S. Electronic Engineering, Escola Politécnica da Universidade de São Paulo, Brazil, 1985.

Biosketch

Prof. Pereira da Cunha is highly motivated to work in multidisciplinary topics involving electrical and bioengineering. He has multiple grants funded by the National Science Foundation in the Bioengineering area with his co-workers in the area of Biosensors, bio actuators, and integrated acousto/MEMs micro-hotplates sensors.

Research Interests

Acoustic Wave Filters for High Frequency Wireless Communication Applications Wireless communications is the technique employed in systems such as cell phones, LANs and mobile communication. In recent years, a very crowded wireless frequency band has created a need to expand the band to higher frquencies. Current technology employing SAW devices in critical signal procesing elements, such as RF filters, cannot be utilized in high frequency systems applications. The application of newly discoveredhigh velocity pseudo surface acoustic waves (HVPSAWs) has teh potential of satisfying high frequency requirements of today.This research focuses on an high radio frequency microwave acoustic devices, such as filters in wireless communications using HVPSAWs. The research objective is to identify piezoelectric materials and specific orientations in which HVPSAWs exist, and design, and fabricate and test prototype HVPSAw filters. SGER : Detection of Bioterrorism-Linked Microbial Pathogens Using Surface Acoustic Wave Liquid Sensors Bioterrorism threats require sensors that can rapidly and accurately detect minute quantities of pathological bioagents. Selective and inexpensive sensors are urgently needed to detece pathogens in liquid environments like food and water supplies. This project involving Dr. Pereira da Cunha and Dr. Millard (department of chemical and biological engineering) brings together expertise from 2 different areas into a new exploratory application that highly relevant to bioterrorism threats. The research combines molecular padlock probes for specific nucleic acid amplification with the SH-SAW (Shear Horizontal Surface Acoustic Wave (SH) SAW mode device utilizing the new Langasite family of crystals (LGX) recently fabricated by Dr. pereira daCunha) sensor platform to produce a hybrid biosensor to detect microbialpathogens in liquid quickly and reliably. Temperature Compensated Cuts on GaPO4 for Extreme Temperature Applications This project is part of the Collaboration Agreement established between the University of Maine and Linear Measurements, Inc. on the analysis of Temperature Compensated Cuts on GaPO4 for Extreme Temperature Applications. The general scope of this work is to investigate the temperature performance of GaPO4 for acoustic wave applications for temperatures far away from room temperature, thus outside of what is considered commercial practice.The specific tasks to be developed at UM are 1)Surface Acoustic Wave (SAW) Propagation Directions Analyses And Predictions At Extreme Temperatures 2)On wafer fabrication of SAW devices 3)2.3.On wafer SAW device measurements from 5-300 C temperature range. High Temperature Oscillator and Digital Clock The purpose of this proposal is to look at new materials for fabrication of SAW resonators that can have a sustained operation in the 200 oC to 300 oC temperature ranges. This work will investigate the use of quartz and the langasite family of available crystals for substrate material and will investigate metallization that can maintain its mechanical and electrical integrity at these temperatures. The application is for high temperature clocks that use SAW resonators as their frequency control element. The clocks will be used in geothermal and oil well environments. New Acoustic Wave Materials for High Temperature Chemical Sensors The main objective in the proposed Seed Grant research is to study the feasibility of the LGX family of crystals to operate at temperatures up to 600 oC and serve as acoustic wave materials for sensing applications. Such devices aim at fulfilling the current NASA needs of quick response, point contact H2, CxHy, NOx, CO, CO2, and O2 sensors for safety monitoring, emission monitoring, and fire detection. These sensors are particularly important in improving safety, decreasing the cost of space travel, and decreasing the amount of emissions produced by aeronautic engines.

1997-2000 Surface Acoustic Wave SAW sensors, device fabrication, and characterization Joint project with Brazilian Telecommunication Research Institute – CPqD and Information Technologic Center – CTI . . . 1997 to present. Thin Films for high velocity SAW devices Joint work with the new materials group at University of Sao Paulo . . . 1997 to present. Gas and liquid sensors devices and fabrication Joint project with the sensors group at University of Sao Paulo and several other Brazilian Universities (RECOPE/FINEP project – Brazilian Government Grant) . . . 1998 to 2000. Acoustoptical devices for optical signal processing Initial joint activities with Aeronautics Technologic Center – CTA . . .

Selected Publications

  • M. Pereira da Cunha, E.L. Adler, and D.C. Malocha, "BAW Temperature Sensitivity and Coupling in Langanite,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 49, No. 5, May 2002, pp. 656-663.
  • M. Pereira da Cunha and S. de A. Fagundes, "Metal Strip Reflectivity and NSPUDT Orientations in Langanite, Langasite, and Gallium Phosphate,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 49, No. 6, June 2002, pp. 815-819.
  • M. Pereira da Cunha and A. Yoshihiro Nakano, "Comparison Between ST-Cut Quartz 25° and -60° NSPUDT Propagation Direction,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 49, No. 6, June 2002, pp. 820-826.
  • D. C. Malocha, M. Pereira da Cunha, Christine Klemenz, D. Puccio, and K. Casey, “Investigations of Langanite and Langatate Materials for Use in SAW Device Applications,” Intl. Conf on New Materials, Japan, 2002.
  • D. Puccio, N. Saldanha, D. C. Malocha and M. Pereira da Cunha, “SAW Reflectivity and Resonator results for LGT and LGN,” IEEE 2002 Frequency Control Symp. Proceedings, pp. in press, June 05-08, New Orleans, LA, USA, 2002.
  • M. Pereira da Cunha, D. C. Malocha, R. Puccio, and J. Thiele, “LGX Pure Shear Horizontal SAW for Liquid Sensor Applications,” Proceedings of the 2002 IEEE Sensors, Orlando, FL, June 2002.
  • D. C. Malocha, M. Pereira da Cunha, E.L. Adler, D. Puccio and K. Knapp, “Measurements and Predictions of SAW Parameters and Device Performance on LGT-X Substrates”, IEEE 2001 Frequency Control Symp. Proceedings, pp. 219-222, June 05-08, Seattle, Washington, USA, 2001.
  • John A. Kosinski, Robert A. Pastore, Jr., Emmanuel Bigler, Mauricio Pereira da Cunha, Donald C. Malocha, Jacques Detaint, “A review of langasite material constants from BAW and SAW data : toward an improved data set,” IEEE 2001 Frequency Control Symp. Proceedings, pp. 278-286, June 05-08, Seattle, Washington, USA, 2001.
  • D. C. Malocha and M. Pereira da Cunha, “Sensitivity Analysis For Extraction Of Material Constants For Trigonal Crystal Classes,” IEEE 2001 Frequency Control Symp. Proceedings, pp. 291-295, June 05-08, Seattle, Washington, USA, 2001.
  • M. Pereira da Cunha, "Effects of layer thickness for SAW, PSAW, and HVPSAW devices,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 48, No. 1, January 2001, pp. 93-99.
  • M. Pereira da Cunha, “Pseudo and High Velocity Pseudo SAWs,” in Advances in SAW Technology, Systems and Application, vol. 2, C.W. Ruppel and T.A. Fjeldly, Editors, Selected Topics in Electronics and Systems – Vol. 20, World Scientific Publishing Co., Singapore, pp. 203-243 (2001). ISBN 981-02-4538-6.
  • D. C. Malocha, M. Pereira da Cunha, D. Puccio and K. Casey, “Investigations of Langanite and Langatate Materials for Use in SAW Device Applications,” IEEE 2001 International Ultrasonics Symposium Proceedings, October 7-10, Atlanta, U.S.A, 2001.
  • H. J. Whitehouse and M. Pereira da Cunha, “High-Temperature Ultrasonic Devices for Harsh Environments,” IEEE 2000 International Ultrasonics Symposium Proceedings, October 22-25, San Juan, Puerto Rico, 2000.
  • A. Y. Nakano, M. N. P. Carreno, e M. P. da Cunha, “Remoção de carbeto de silício amorfo (a-SiC) em plasma CHF3/O2 para fabricação de dispositivos acústicos,” 8o. Simpósio de Iniciação Científica da Universidade de São Paulo – 8o. SICUSP, Universidade de São Paulo, Campus São Carlos, São Carlos, SP, Brasil, 08 a 10 de novembro de 2000.
  • M. Pereira da Cunha and D. C. Malocha, “Pure Shear Horizontal SAW On Langatate,” IEEE 2000 International Ultrasonics Symposium Proceedings, pp. 231-234, October 22-25, San Juan, Puerto Rico, 2000. 6.3.1.
  • M. Pereira da Cunha and D. C. Malocha, “Experimental and Predicted Saw Temperature Behavior of Langatate,” IEEE 2000 International Ultrasonics Symposium Proceedings, pp. 245-248, October 22-25, San Juan, Puerto Rico, 2000.
  • M. Pereira da Cunha, "SAW, PSAW, and BAW Materials and Devices," IEEE 2000 International Ultrasonics Symposium, San Juan, Puerto Rico, October 2000. D.C.
  • Malocha, M.P. da Cunha, E. Adler, R.C. Smythe, S. Fredrick, M. Chou, R. Helmbold and Y.S. Zhou, "Recent Measurements of Material Constants versus Temperature for Langatate, Langanite and Langasite," IEEE 2000 Frequency Control Symp. Proceedings, pp. 200-205, June 07-09, Kansas City, Missouri, USA, 2000.
  • E. R. Braga, A. Y. Nakano, e M. P. da Cunha, “Um sistema sensor a ressoador SAW empregado como medidor de concentração de acetona e álcoois,” Anais do 2000 IX Simpósio Brasileiro de Microondas e Optoeletrônica – SBMO, 07 a 11 de Agosto de 2000, Tropical Hotel Tambaú, João Pessoa, PB, Brasil. M. Pereira da Cunha, E. Adler, and D. C. Malocha, “HVPSAW Sensitivity to Film Properties for ZnO/DIAMOND/Si Structures,” IEEE 2000 International Ultrasonics Symposium Proceedings, pp. 283-286, October 22-25, San Juan, Puerto Rico, 2000.
  • M. Pereira da Cunha, E. Adler, and D. C. Malocha, “Baw Temperature Sensitivity and Coupling in Langanite,” IEEE 1999 International Ultrasonics Symposium Proceedings, pp. 883-886, October 17-21, Lake Tahoe, Nevada, USA, 1999.
  • M. Pereira da Cunha and S. A. Fagundes, "Investigation on Recent Quartz-like Materials for SAW Applications,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 46, No. 6, November 1999, pp. 1583-1590.
  • M. Pereira da Cunha and A. Yoshihiro Nakano, "Experimental Results for Quartz St 300° versus Quartz St 25°," 1999 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, Rio de Janeiro, RJ, Brazil, August 09-12, 1999.
  • M. Pereira da Cunha and S. A. Fagundes, "NSPUDT Orientations in New Materials," 1999 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, Rio de Janeiro, RJ, Brazil, August 09-12, 1999.
  • M. Pereira da Cunha E. R. Braga, "A Saw Resonator Sensor System Employed in Humidity Measurements," 1999 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, Rio de Janeiro, RJ, Brazil, August 09-12, 1999.
  • M. Pereira da Cunha and A. Yoshihiro Nakano, “Experimental Comparison Between St-Quartz 25° and 300° NSPUDT Orientations,” IEEE 1999 International Ultrasonics Symposium Proceedings, pp. 259-262, October 17-21, Lake Tahoe, Nevada, USA, 1999.
  • M. Pereira da Cunha and S. A. Fagundes, “Metal Strip Reflectivity and NSPUDT Orientations in Langanite, Langasite, and Gallium Phosphate,” IEEE 1999 International Ultrasonics Symposium Proceedings, pp. 235-238, October 17-21, Lake Tahoe, Nevada, USA, 1999.
  • M. Pereira da Cunha, E. Adler, and D. C. Malocha, “Surface and Pseudo Surface Acoustic Waves in Langatate,” IEEE 1999 International Ultrasonics Symposium Proceedings, pp. 169-172, October 17-21, Lake Tahoe, Nevada, USA, 1999.
  • M. Pereira da Cunha, "Extended Investigation on High Velocity Pseudo Surface Waves," IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 45, No. 3, May 1998, pp. 604-613.
  • A. Y. Nakano e M. P. da Cunha, “Projeto de redes de casamento em função da defasagem para o projeto de osciladores a OAS,” VI Simpósio de Iniciação Científica da Universidade de São Paulo – 6o. SICUSP, pp. 167, Universidade de São Paulo, São Paulo, Brasil, 05 e 06 November 1998.
  • S. A. Fagundes e M. P. da Cunha, “Cálculo automatizado de Ondas Acústicas e CAT no espaço para pesquisa de materiais e orientações,” Anais do 1998 SBMO VIII Simpósio Brasileiro de Microondas e Optoeletrônica, pp.427-431, July 1998, Joinville, SC, Brasil.
  • M. Pereira da Cunha and S. A. Fagundes, “Investigation on recent quartz like materials for SAW applications,” IEEE 1998 International Ultrasonics Symposium Proceedings, Vol. 1, pp. 283-288, Hotel Metropolitan Sendai, Sendai, Japan, 1998.
  • S. A. Fagundes e M. P. da Cunha, “Cálculo de parâmetros de ondas acústicas em planos arbitrários e no espaço,” VI Simpósio de Iniciação Científica da Universidade de São Paulo – 6o. SICUSP, pp. 159, Universidade de São Paulo, São Paulo, Brasil, 05 e 06 de November 1998.
  • M. Pereira da Cunha , "PSAW and HVPSAW behavior in layered structures," 1997 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, Vol. 1, pp. 109-114, Natal, RN, Brazil, August 11-14, 1997.
  • S. A. Fagundes e M. P. da Cunha, “Cálculo de Ondas Acústicas em Planos Arbitrários,” V Simpósio de Iniciação Científica da Universidade de São Paulo – 5o. SICUSP, pp. 80, Universidade de São Paulo, São Paulo, Brasil, November 1997.
  • M. Pereira da Cunha, "Ondas Acústicas Superficiais," Simpósio de Pesquisa da EPUSP’97, pp. 423-425, Universidade de São Paulo, São Paulo, Brasil, November 1997.
  • S. A. Fagundes e M. P. da Cunha, “Cálculo automatizado de soluções de OAS – varredura em plano arbitrário,” Anais do Encontro Nacional de Software e Medidas – ENSM’97, pp. 45-49, Centro de Pesquisa e Desenvolvimento da Telebrás, Campinas, S.P., Brasil, December 1997.
  • M. Pereira da Cunha, "Ondas Acústicas Superficiais – 6ª Parte – Materiais, Tecnologia e Aplicações de OAS," Saber Eletrônica, Ano 32, n° 288, Editora Saber Ltda., Brasil, pp. 10-13, janeiro 1997.
  • M. Pereira da Cunha , "PSAW and HVPSAW behavior in layered structures," 1997 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, Vol. 1, pp. 109-114, Natal, RN, Brazil, August 11-14, 1997.
  • M. Pereira da Cunha, "PSAW and HVPSAW behavior in layered structures," Anais do 1997 SBMO/IEEE International Microwave and Optoelectronics Conference, Vol.1, pp. 109-114, Imirá Plaza Hotel, Natal, Brazil, 11 a 14 de agosto de 1997.
  • M. Pereira da Cunha, “Effects of layer thickness for GSAW, PSAW and HVPSAW devices,” IEEE 1997 International Ultrasonics Symposium Proceedings, Vol. 1, pp. 239-244, Toronto Marriot Eaton Centre, Toronto, Canada, 1997.
  • M. Pereira da Cunha, "Ondas Acústicas Superficiais – 3ª Parte – Dispositivos e Respectivos Transdutores," Saber Eletrônica, Ano 32, n° 285, Editora Saber Ltda., Brasil, pp. 18-21, outubro 1996.
  • M. Pereira da Cunha, "High Velocity Pseudo Surface Acoustic Waves (HVPSAW): Further Insight," IEEE 1996 International Ultrasonics Symposium Proceedings, Vol. 1, pp. 87-96, San Antonio, Texas, USA, artigo convidado (INVITED PAPER)
  • M. Pereira da Cunha, "Princípios, Dispositivos, e Aplicações de Ondas Acústicas Superficiais (OAS) (“Surface Acoustic Wave Fundamentals, Devices And Applications ”)," VII Simpósio Brasileiro de Microondas e Optoeletrônica e XIV Simpósio Brasileiro de Telecomunicações – TELEMO’ 96, CEFET-PR, Curitiba, Brasil, July 1996.
  • M. Pereira da Cunha, "High Velocity Pseudo Surface Acoustic Waves (HVPSAW): Further Insight," IEEE 1996 International Ultrasonics Symposium Proceedings, Vol. 1, pp. 87-96, San Antonio, Texas, USA, artigo convidado (INVITED PAPER).
  • M. Pereira da Cunha, "A presença das OAS em sistemas eletrônicos modernos – 2ª Parte," Saber Eletrônica, Ano 32, n° 284, Editora Saber Ltda., Brasil, pp. 16-20, setembro 1996. M. Pereira da Cunha, "Ondas Acústicas Superficiais – 5ª Parte – Materiais, Tecnologia e Aplicações de OAS," Saber Eletrônica, Ano 32, n° 287, Editora Saber Ltda., Brasil, pp. 10-13, dezembro 1996.
  • M. Pereira da Cunha, "POASAV: Uma nova onda acústica superficial," Anais do VII Simpósio Brasileiro de Microondas e Optoeletrônica e XIV Simpósio Brasileiro de Telecomunicações – TELEMO’ 96, Vol.1, pp. 125-130, CEFET-PR, Curitiba, Brasil, July 1996. (INVITED PAPER)
  • M. Pereira da Cunha, "Princípios, Dispositivos, e Aplicações de Ondas Acústicas Superficiais (OAS) (“Surface Acoustic Wave Fundamentals, Devices And Applications ”)," VII Simpósio Brasileiro de Microondas e Optoeletrônica e XIV Simpósio Brasileiro de Telecomunicações – TELEMO’ 96, CEFET-PR, Curitiba, Brasil, July 1996. (SHORT-COURSE)
  • M. Pereira da Cunha, "A presença das OAS em sistemas eletrônicos modernos – 1ª Parte," Saber Eletrônica, Ano 32, n° 283, Editora Saber Ltda., Brasil, pp. 13-17, agosto 1996.
  • M. Pereira da Cunha, "Ondas Acústicas Superficiais – 4ª Parte – Tipos de transdutores e efeitos de 2ª ordem," Saber Eletrônica, Ano 32, n° 286, Editora Saber Ltda., Brasil, pp. 14-20, novembro 1996. M. Pereira da Cunha and E. L. Adler, "High Velocity Pseudo Surface Acoustic Waves (HVPSAW),” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 42, No. 5, September 1995, pp. 840-844.
  • M. Pereira da Cunha and E. L. Adler, "Scattering of SAW at discontinuities: some numerical experiments,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., Vol. 42, No. 2, March 1995, pp. 168-173.
  • M. Pereira da Cunha and E. L. Adler, "High Velocity Pseudo Surface Acoustic Waves (HVPSAW)," IEEE 1994 Ultrasonics Symposium Proceedings, Vol. 1, pp. 281-286, Cannes, France, 1994. Ph.D. Thesis "SAW Propagation and Device Modelling on Arbitrarily Oriented Substrates," McGill University ? Dept. of Electrical Engineering – Thesis defense in 24/08/1994.
  • M. Pereira da Cunha and E. L. Adler, "Scattering of SAW at Discontinuities: some numerical experiments," IEEE 1993 Ultrasonics Symposium Proceedings, Vol. 1, pp. 179-184, Baltimore, Maryland, USA, 1993.
  • M. Pereira da Cunha and E. L. Adler, "A Network Model for Arbitrarily Oriented IDT Structures," IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 40, No. 6, November 1993, pp. 622-629.
  • M. Pereira da Cunha and E. L. Adler, "A Network Model for Arbitrarily Oriented IDT Structures," IEEE 1992 Ultrasonics Symposium Proceedings, Vol. 1, pp. 89-94, Tucson, Arizona, USA, 1992.
  • M. Pereira da Cunha and F. S. Correra, "A Low-Cost High Performance SAW Resonator Oscillator," SBMO-91 International Microwave Conference Proceedings / Brazil, pp. 510-515, Rio de Janeiro, RJ, 22 to 25 July 1991.
  • E. L. Adler, M. Pereira da Cunha, O. Schwelb, "Arbitrarily Oriented SAW Gratings: Network Model and the Coupling-of-Modes Description," IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 38, No. 3, May 1991, pp. 220-230.
  • E. L. Adler, M. Pereira da Cunha, O. Schwelb, "Network Model Versus COM Description of SAW Devices," IEEE 1990 Ultrasonics Symposium Proceedings, Vol. 1, pp. 19-24, Honolulu, Hawaii, USA, 1990.
  • M. Pereira da Cunha and J. K. da Cunha Pinto, "Design and Implementation of a 70 MHz SAW Convolver," 1989 ? SBMO International Microwave Symposium Proceedings, pp. 641-646, São Paulo, SP, Brazil.
  • M. Pereira da Cunha and J. K. da Cunha Pinto, "Estrutura Composta Para Compressão de Feixe em um Convolutor Elástico de 70 MHz," III Simpósio Brasileiro de Microondas Proceedings, pp. 293-299, UFRN, Natal, Brasil, July 1988.
  • M. Pereira da Cunha, M. A. Sharif, J. K. da Cunha Pinto, "A 70 MHz Elastic Convolver," 1987 ? SBMO International Microwave Symposium Proceedings, IEEE Cat. No. 87 THO183?4, Tome II, pp. 956?961, Rio de Janeiro, RJ, Brazil.
  • M. Pereira da Cunha, M. A. Sharif, J. K. da Cunha Pinto, "A 70 MHz Elastic Convolver," 1987 ? SBMO International Microwave Symposium Proceedings, IEEE Cat. No. 87 THO183?4, Tome II, pp. 956?961, Rio de Janeiro, RJ, Brazil.