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Hybrid Scanning Probe Microscopy For the Two Year College

Hybrid Scanning Probe Microscopy For the Two Year College. Rick Vaughn, Ph.D. Rio Salado College Tempe, Arizona. Welcome and Introductions. Rick Vaughn, Faculty Chair STEM Initiatives

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Hybrid Scanning Probe Microscopy For the Two Year College

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  1. Hybrid Scanning Probe Microscopy For the Two Year College Rick Vaughn, Ph.D. Rio Salado College Tempe, Arizona

  2. Welcome and Introductions • Rick Vaughn, Faculty Chair STEM Initiatives • Rio Salado College is primarily a distance education institution offering over 40 degree and certificate programs in 43 states

  3. Partnerships • Rio Salado College and Arizona State University have come together in a unique partnership to give students hands on clean room opportunities while earning their hybrid Nanotechnology certificate. This partnership allows for cost effective delivery of essential skills for micro and nanotechnology at the community college level • Rio Salado College also partners with the Southwest Center for Microsystems Education (SCME) implementing MEMS kits for teacher development, curriculum, course design, and community outreach

  4. History with Nano and MEMS • 2011 – RV Comes to Rio to head “STEM” initiatives • 2012 – MNT Conference Penn State • 2012-13 NACK Workshops • 2013 Began work on Nanotechnology AAS/Certificate of Completion • 2015 Program Approved – expansion to include MEMS • 2016 Expansion of SPM curriculum

  5. Overview of program development process • Internal Vetting • Higher Learning Commission • Substantive Change • Early Alert • Instructional Council • DoE Approval • Program Live 2016 • Summer 2017 – 3 students

  6. Curriculum • AAS – 62 Credits • Gen Ed • STEM Core (Restricted Electives) • General Principles of Nanotechnology • Intro to MEMS • CCL/Capstone (18 credits)

  7. Curriculum • CCL – Based on Penn State Model • MNT201 Materials, Safety and Equipment for NanotechnologyMNT210 Basic Nanotechnology ProcessesMNT220 Materials in NanotechnologyMNT230 Patterning for Nanotechnology MNT240 Materials Fabrication with NanotechnologyMNT250 Characterization of Nanotechnology Structures and Materials

  8. Unique Program Features Commitment to authentic training via distance and hybrid delivery • Proprietary Learning Management System • Kits by Mail • Virtual Field Trip • Remote Access • Lab partners

  9. Virtual Field Trip • Designed to offer students an authentic lab experience in the cleanroom • Prepares students for actual lab experiences • Reduces errors in real cleanroom setting • Launching point for remote access

  10. Demo of Virtual Field Trip • HTML Version • Remote Access at NCI-SW • VR Headset version also available

  11. NT-MDT

  12. A short silent film

  13. AFM Basics • https://www.youtube.com/watch?v=QZLda253cYE • Credit: Worcester Polytechnic Institute

  14. AFM Modes Contact Mode – Sliding • Allows fastest scanning • Allows computation of force and thus quantification of material properties • Friction often provides the greatest materials contrast • Wear can be analytically useful

  15. AFM Modes Force Curve Mapping: Intermittent Contact at frequencies below cantilever resonance • Removes shear nearly as well as dynamic mode, but sometimes allows faster scanning • Allows computation of force • Adhesion and stiffness can be separately interpreted • “Spectroscopic” distance-dependent measurements • Avoid instabilities of cantilever resonance

  16. AFM Modes Dynamic (AC/”tapping”) mode: intermittent or non-contact at/near cantilever resonance • Attractive regime is extremely delicate, even liquid surfaces can be imaged (noncontact) • Can choose to make slightest contact, thus extreme surface sensitivity on soft materials • Shortest contact time means greatest degree of dynamic stiffening and shear reduction • Enables other AC methods, electrostatic, Kelvin-probe, multi-frequency eigenmodes, contact resonance, super/sub harmonics

  17. Credits • Dalia Yablon, Surface Char LLC dalia.yablon@surfacechar.com • Greg Haugstad, University of Minnesota haugs001@umn.edu

  18. Why does tip size matter? • Discuss the result of contact mode scanning on the following feature:

  19. Some of the math involved • Use of the NanoSolver with Software simulator

  20. Simulator Software • An excellent addition for our hybrid program

  21. Next Steps $100K grant from Workforce Development – Supplementary Prop 301 funds • Mask Aligner • Marketing $100K more from regular Prop 301 • Infrastructure and support Other proposals pending

  22. Questions? Rick Vaughn Rick.Vaughn@riosalado.edu 480-517-8661 Jeanne Ratliff- is sadly no longer at Rio Jeanne.Ratliff@riosalado.edu 480-517-8231

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