DOI QR코드

DOI QR Code

Magnetic and Thermal Evaluation of a Magnetic Tunneling Junction Current Sensor Package

  • Rhod, Eduardo (Electrical Engineering Graduate Program, Unisinos University) ;
  • Peter, Celso (Electrical Engineering Graduate Program, Unisinos University) ;
  • Hasenkamp, Willyan (Electrical Engineering Graduate Program, Unisinos University) ;
  • Grion, Agner (Science and Technology Foundation-CIENTEC)
  • 투고 : 2016.12.05
  • 심사 : 2016.12.23
  • 발행 : 2016.12.31

초록

Nowadays there are magnetic sensors in a wide variety of equipment such as computers, cars, airplanes, medical and industrial instruments. In many of these applications the magnetic sensors offer safe and non-invasive means of detection and are more reliable than other technologies. The electric current in a conductor generates a magnetic field detected by this type of sensor. This work aims to define a package dedicated to an electrical current sensor using a MTJ (Magnetic Tunnel Junction) as a sensing device. Four different proposals of packaging, three variations of the chip on board (CoB) package type and one variation of the thin small outline package (TSOP) were analyzed by COMSOL modeling software by simulating a brad range of current injection. The results obtained from the thermal and magnetic analysis has proven to be very important for package improvements, specially for heat dissipation performance.

키워드

참고문헌

  1. C. Reig, M.-D. Cubells-Beltran and D. Ramirez, "Magnetic field sensors based on giant magnetoresistance (GMR) technology: Applications in electrical current sensing", Sensors, 9(10), 7919 (2009). https://doi.org/10.3390/s91007919
  2. M. Arikan, S. Ingvarsson, M. Carter and G. Xiao, "Dc and ac characterization of mgo magnetic tunnel junction sensors", IEEE Transactions on Magnetics, 49(11), 5469 (2013). https://doi.org/10.1109/TMAG.2013.2266327
  3. A. Lopes, S. Cardoso, R. Ferreira, E. Paz, F. L. Deepak, J. Sanchez, D. Ramirez, S. I. Ravelo and P. P. Freitas, "Mgo magnetic tunnel junction electrical current sensor with integrated ru thermal sensor", IEEE Transactions on Magnetics, 49(7), 3866 (2013). https://doi.org/10.1109/TMAG.2013.2246550
  4. R. R. Tummala, "Fundamentals of microsystems packaging", McGraw-Hill Professional, (2001).
  5. L. Wilson, International technology roadmap for semiconductors (ITRS), Assembly and packaging, (2011).
  6. S. Yuasa, "Tunneling magnetoresistance: Experiment (mgo magnetic tunnel junctions)", Handb. Spin Transp. Magn., CRC Press, Boca Raton., 217 (2012).
  7. P. R. LeClair and J. S. Moodera, "Tunneling magnetoresistance: Experiment (non-mgo magnetic tunnel junctions)", Handb. Spin Transp. Magn., CRC Press, Boca Raton., 197 (2012).
  8. W. Y. Du, "Resistive, capacitive, inductive, and magnetic sensor technologies", CRC Press, (2014).
  9. G. Xiao, "Magnetoresistive sensors based on magnetic tunneling junctions", Handb. Spin Transp. Magn., CRC Press, Boca Raton., 665 (2012).
  10. S. Yuasa and D. D. Djayaprawira, "Giant tunnel magnetoresistance in magnetic tunnel junctions with a crystalline MgO(001) barrier", Journal of Physics D: Applied Physics, 40(21), R337 (2007). https://doi.org/10.1088/0022-3727/40/21/R01
  11. J. Zhu and C. Park, "Magnetic tunnel junctions", Materials Today, 9(11), 36 (2006). https://doi.org/10.1016/S1369-7021(06)71693-5
  12. C. Reig, D. Ramirez, F. Silva, J. Bernardo and P. Freitas, "Design, fabrication, and analysis of a spinvalve based current sensor", Sensors and Actuators, A: Physical, 115(2), 259 (2004). https://doi.org/10.1016/j.sna.2004.03.059
  13. M. D. Cubells, C. Reig, A. De Marcellis, A. Roldan, J. B. Roldan, S. Cardoso and P. P. Freitas, "Magnetic tunnel junction (mtj) sensors for integrated circuits (ic) electric current measurement", Proc. IEEE SENSORS 2013 (2013).
  14. H. Beltran, C. Reig, V. Fuster, D. Ramirez and M. D. Cubells-Beltran, "Modeling of magnetoresistive-based electrical current sensors: A technological approach", IEEE Sensors Journal, 7(11) 1532 (2007). https://doi.org/10.1109/JSEN.2007.908241
  15. Crocus, Product brief ctsr200x series. Last access: Jan. (2014), http://www.crocus-technology.com
  16. J. D. Standard, "Design requirements for outlines of solid state and related products", Joint Electron Device Engineering Council - JEDEC, 13 (2004).