Fabricating a MEMS Pressure Sensor – You Can Do This!

By Matthias Pleil1; NACK Network2

1. Mechanical Engineering, University of New Mexico, Albuquerque, NM 2. Nanotechnology Applications and Career Knowledge Network, Pennsylvania State University, University Park, PA

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Bio

Matthias Pleil Matthias Pleil, Ph.D. is the Principal Investigator for two National Science Foundation funded centers, the Southwest Center for Microsystems Education (SCME, since 2004) and the Support Center for Microsystems Education (2017). He is a Research Professor of Mechanical Engineering and the MTTC Cleanroom Manager at the University of New Mexico. He teaches several undergraduate engineering classes and promotes micro and nanotechnology. Previously he was a faculty member at Central New Mexico Community College in both the Schools of Applied Technologies and Math, Science and Engineering (MSE) where he taught Microsystems Fabrication and Design, Survey of Engineering and Physics. He has over 12 years of experience in Semiconductor Manufacturing from both Texas Instruments and Philips Semiconductors, where he worked as a Senior Process and Equipment Engineer and Engineering Manager in Photolithography, Yield, and Metrology. Dr. Pleil received his Ph.D. in Physics in 1993 from Texas Tech University, where he completed original research on Time-Resolved Fluorescence Spectroscopy.

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Researchers should cite this work as follows:

  • Matthias Pleil, NACK Network (2022), "Fabricating a MEMS Pressure Sensor – You Can Do This!," https://nanohub.org/resources/36242.

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Fabricating a MEMS Pressure Sensor – You Can Do This!
  • Fabricating a MEMS Pressure Sensor – You Can Do This! 1. Fabricating a MEMS Pressure Se… 0
    00:00/00:00
  • What are MEMS Pressure Sensors? 2. What are MEMS Pressure Sensors… 109.90990990990991
    00:00/00:00
  • Why do we care? 3. Why do we care? 187.4874874874875
    00:00/00:00
  • Who Makes These? 4. Who Makes These? 324.55789122455792
    00:00/00:00
  • Pressure Sensor Application 5. Pressure Sensor Application 375.70904237570903
    00:00/00:00
  • A Cool App for your phone Check out your pressure sensor! 6. A Cool App for your phone Chec… 504.8048048048048
    00:00/00:00
  • Pressure Sensor How it Works 7. Pressure Sensor How it Works 634.36770103436777
    00:00/00:00
  • MTTC Pressure Sensor Process Overview 8. MTTC Pressure Sensor Process O… 730.33033033033041
    00:00/00:00
  • SCME/MTTC Pressure Sensor Process - Video 9. SCME/MTTC Pressure Sensor Proc… 940.60727394060734
    00:00/00:00
  • Backside Pattern (Chamber) – Hard Mask 10. Backside Pattern (Chamber) –… 1167.3673673673675
    00:00/00:00
  • Photolithography 11. Photolithography 1264.7313980647314
    00:00/00:00
  • Wafer Prep Deposition 12. Wafer Prep Deposition 1412.1121121121121
    00:00/00:00
  • Wafer Prep QDR/SRD Deposition 13. Wafer Prep QDR/SRD Deposition 1478.0780780780781
    00:00/00:00
  • Coat 14. Coat 1657.4574574574576
    00:00/00:00
  • Expose 15. Expose 1775.3753753753754
    00:00/00:00
  • Develop 16. Develop 1869.5695695695697
    00:00/00:00
  • Microscope Inspection 17. Microscope Inspection 1998.4651317984651
    00:00/00:00
  • Profilometer Inspection - DekTak 18. Profilometer Inspection - DekT… 2047.4140807474141
    00:00/00:00
  • After Pattern, Before RIE Etch – Profiles 19. After Pattern, Before RIE Etch… 2129.7964631297964
    00:00/00:00
  • Program 20. Program 2218.5185185185187
    00:00/00:00
  • After first 5min 21. After first 5min 2336.9703036369706
    00:00/00:00
  • After Etch before Resist Strip 22. After Etch before Resist Strip 2396.0960960960961
    00:00/00:00
  • Etch Inspect 23. Etch Inspect 2487.354020687354
    00:00/00:00
  • Selectivity: What you want etched Vs Masking Material 24. Selectivity: What you want etc… 2523.5568902235568
    00:00/00:00
  • Backside is now etched 25. Backside is now etched 2595.4621287954624
    00:00/00:00
  • Frontside Pattern – Dark or Bright Field? 26. Frontside Pattern – Dark or … 2624.0573907240573
    00:00/00:00
  • Karl Suss MA6/BA6 27. Karl Suss MA6/BA6 2742.375709042376
    00:00/00:00
  • Backside Alignment Microscopes 28. Backside Alignment Microscopes 2746.9135802469136
    00:00/00:00
  • Pattern the Wheatstone Bridge 29. Pattern the Wheatstone Bridge 2841.4414414414414
    00:00/00:00
  • Alignment Details 30. Alignment Details 2960.06006006006
    00:00/00:00
  • Photolithography – Liftoff LOR5B 31. Photolithography – Liftoff L… 2991.7917917917921
    00:00/00:00
  • LOR5b Results - Inspect 32. LOR5b Results - Inspect 3049.5161828495161
    00:00/00:00
  • Photolithography – Liftoff nLOF2070 33. Photolithography – Liftoff n… 3117.1171171171172
    00:00/00:00
  • nLOF2070 Results 34. nLOF2070 Results 3225.3253253253256
    00:00/00:00
  • So Far.... 35. So Far.... 3257.3573573573576
    00:00/00:00
  • Sputter – CrAu or NiCr 36. Sputter – CrAu or NiCr 3302.902902902903
    00:00/00:00
  • Load 37. Load 3434.7013680347013
    00:00/00:00
  • Load Wafer in Load Lock 38. Load Wafer in Load Lock 3463.2632632632635
    00:00/00:00
  • Sputter Wafer Stage and Target 39. Sputter Wafer Stage and Target 3520.387053720387
    00:00/00:00
  • Select 40. Select 3554.421087754421
    00:00/00:00
  • Metal on Photoresist 41. Metal on Photoresist 3576.50984317651
    00:00/00:00
  • Liftoff 42. Liftoff 3632.1321321321325
    00:00/00:00
  • Inspect 43. Inspect 3738.2716049382716
    00:00/00:00
  • What's Next? 44. What's Next? 3745.7791124457794
    00:00/00:00
  • Chamber Etch – Anisotropic Wet Etching of Silicon in KOH! 45. Chamber Etch – Anisotropic W… 3748.7487487487488
    00:00/00:00
  • Singulation 46. Singulation 3890.3236569903238
    00:00/00:00
  • Dicing 47. Dicing 3943.7103770437107
    00:00/00:00
  • Probe 48. Probe 4031.6649983316652
    00:00/00:00
  • • • • • WWW.SCME-SUPPORT.ORG 49. • • • • WWW.SCME-SUPPO… 4191.0243576910243
    00:00/00:00
  • NEW: URE - UNDERGRADUATE RESEARCH EXPERIENCE TARGETING 2YR TECHNICIAN STUDENTS WITH THEIR FACULTY! 50. NEW: URE - UNDERGRADUATE RESEA… 4322.7560894227563
    00:00/00:00
  • MNTESIG COMMUNITY 51. MNTESIG COMMUNITY 4544.377711044378
    00:00/00:00
  • Want to Give it a shot? 52. Want to Give it a shot? 4765.5321988655323
    00:00/00:00
  • QUESTIONS? 53. QUESTIONS? 4851.2512512512512
    00:00/00:00