Microfabrication, Characterization and Sensor Development in the Industrial Space

By Nithin Raghunathan

Birck Nanotechnology Center, Purdue University, West Lafayette, IN

Published on

Abstract

The Birck Nanotechnology center offers a variety of capabilities especially in general microfabrication, electrical and physical characterization. With regards to microfabrication, the center features a variety of toolsets to enable fabrication of most devices from scratch to finish. These include lithography tools, such as aligners, metallization tools, such as evaporators and sputters, processing tools, such as etchers, and finally packaging tools, such as wire bonders, dicing saws, and pick‐and‐place systems. In addition to the fabrication capabilities, the center has a large selection of electrical and surface characterization systems, such as different types of probe stations and confocal microscopes to name a few. In each of these categories, the center features some unique tools such as maskless aligners, etc that could be of great benefit to the user.

An example of the application of these tools would be the development of sensors particularly for industrial applications. This includes the development of MEMS devices for detecting impact forces in 100‐60,000 g regimes using silicon cantilevers as the detection mechanism. Another example is a real‐time MOS‐based wireless electronic radiation dosimetry utilizing Bluetooth technology for occupational environments. These sensors are capable of detecting 100 mrem radiation doses in real‐time and transmitting the data wirelessly to a nearby base stations. Another developed sensor is a wirelessly powered multi‐point temperature sensor for lyophilisation to monitor pharmaceutical drug productions. These sensors feature wirelessly powering, small form‐factor and mesh network technologies allowing operation of >100 sensors in a single environment. Other developing research efforts at Birck include the IoT network deployment of in situ fabricated sensors for Agriculture and Manufacturing.

Bio

Nithin Raghunathan received his Ph.D in electrical engineering from Purdue University, West Lafayette, IN, USA, in 2014. His dissertation focused on the development on micro‐machined g‐switches for impact applications typically in the ranges of 100 – 60,000 g’s. He worked as Post‐Doctoral Research associate from 2014 to 2015 and was involved in the development of wireless radiation sensors for dosimetry applications. He is currently a Staff Scientist at the Birck Nanotechnology Center at Purdue University. His current research focus is in the development of sensors for pharmaceutical lyophilisation and aseptic processing. His other interests include novel MEMS inertial devices, development of new microfabrication techniques, wireless and flexible sensors and Internet of things (IoT) and also sensors for industrial and harsh environments.

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References

  • S. Scott et al., "MOS‐capacitor‐based ionizing radiation sensors for occupational dosimetry applications," 2015 IEEE SENSORS, Busan, 2015, pp. 1‐4.
  • N. Raghunathan, X. Jiang, A. Ganguly and D. Peroulis, "An ANT‐based low‐power battery‐free wireless cryogenic temperature probes for industrial process monitoring," 2016 IEEE SENSORS, Orlando, FL, 2016, pp. 1‐3.

Cite this work

Researchers should cite this work as follows:

  • Nithin Raghunathan (2018), "Microfabrication, Characterization and Sensor Development in the Industrial Space," https://nanohub.org/resources/29161.

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Time

Location

Room 1001, Birck Nanotechnology Center, Purdue University, West Lafayette, IN

Tags

Microfabrication, Characterization and Sensor Development in the Industrial Space
  • Microfabrication, Characterization and Sensor Development in the Industrial Space 1. Microfabrication, Characteriza… 0
    00:00/00:00
  • Birck Nanotechnology Center 2. Birck Nanotechnology Center 26.993660326993663
    00:00/00:00
  • Etch tools 3. Etch tools 116.51651651651652
    00:00/00:00
  • Xenon Diflouride Etcher (XeF2) 4. Xenon Diflouride Etcher (XeF2) 123.52352352352352
    00:00/00:00
  • AMMT Hydrofluoric Acid Vapor Etcher 5. AMMT Hydrofluoric Acid Vapor E… 198.7987987987988
    00:00/00:00
  • Packaging Tools 6. Packaging Tools 327.49416082749417
    00:00/00:00
  • Pick and Place 7. Pick and Place 344.84484484484489
    00:00/00:00
  • Dicing Tools – DiscoDAD 641 8. Dicing Tools – DiscoDAD 641 405.97263930597268
    00:00/00:00
  • PCB Milling Tool and Plater : LPKF S103 9. PCB Milling Tool and Plater : … 534.90156823490156
    00:00/00:00
  • Characterization Tools 10. Characterization Tools 617.95128461795127
    00:00/00:00
  • Confocal Microscopy & Probe Stations 11. Confocal Microscopy & Probe St… 623.18985652318986
    00:00/00:00
  • Probe Stations (2) 12. Probe Stations (2) 747.98131464798132
    00:00/00:00
  • High-G switches 13. High-G switches 804.17083750417089
    00:00/00:00
  • Introduction 14. Introduction 830.73073073073078
    00:00/00:00
  • Digital Accelerometer Concept 15. Digital Accelerometer Concept 895.995995995996
    00:00/00:00
  • Fabrication Process 16. Fabrication Process 907.57424090757422
    00:00/00:00
  • Acceleration Evaluation Setup 17. Acceleration Evaluation Setup 922.18885552218887
    00:00/00:00
  • Measurement Setup 18. Measurement Setup 978.07807807807808
    00:00/00:00
  • Measurements 19. Measurements 1006.5398732065399
    00:00/00:00
  • Setup Overview 20. Setup Overview 1023.0563897230564
    00:00/00:00
  • Results 21. Results 1088.4551217884552
    00:00/00:00
  • Electronic Radiation Dosimetry 22. Electronic Radiation Dosimetry 1110.543877210544
    00:00/00:00
  • Personal Radiation Dosimetry 23. Personal Radiation Dosimetry 1117.3506840173507
    00:00/00:00
  • MOSCAP Sensor: 2D Geometry 24. MOSCAP Sensor: 2D Geometry 1159.7263930597264
    00:00/00:00
  • Readout Circuit 25. Readout Circuit 1189.9232565899233
    00:00/00:00
  • Readout Mechanism 26. Readout Mechanism 1229.7630964297632
    00:00/00:00
  • Sensors for Lyophilisation 27. Sensors for Lyophilisation 1257.8244911578245
    00:00/00:00
  • Motivation & Current Technologies 28. Motivation & Current Technolog… 1264.064064064064
    00:00/00:00
  • Multipoint Sensor design 29. Multipoint Sensor design 1349.2826159492827
    00:00/00:00
  • Results 30. Results 1389.6229562896231
    00:00/00:00
  • Sensors in Agriculture & Manufacturing 31. Sensors in Agriculture & Manuf… 1415.1151151151153
    00:00/00:00
  • Internet of things (IoT) – Connectivity to the world 32. Internet of things (IoT) – C… 1419.8531865198534
    00:00/00:00
  • LoRa - Agricultural sensors networks 33. LoRa - Agricultural sensors ne… 1437.2706039372706
    00:00/00:00
  • LoRa – Semtech SX1272 at Purdue University 34. LoRa – Semtech SX1272 at Pur… 1445.0116783450117
    00:00/00:00
  • Sensors in Manufacturing 35. Sensors in Manufacturing 1462.1955288621955
    00:00/00:00
  • Predictive Analytics Technique -Principal Component Analysis and Control Chart- 36. Predictive Analytics Technique… 1486.61995328662
    00:00/00:00
  • Summary 37. Summary 1514.3143143143143
    00:00/00:00
  • ACKNOWLEDGEMENTS 38. ACKNOWLEDGEMENTS 1528.2282282282283
    00:00/00:00
  • Thank You! 39. Thank You! 1547.2138805472139
    00:00/00:00