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Silicon Spinning

Silicon Spinning. The Beginning of Microprocessors. By: Mahmoud Hayat and Will Farrell Mentor: Kwame Owusu-Adom. Introduction. We tested contact angles of different fluids on different surfaces. We spin coated silicone fluids of different viscosity on a silicon wafer.

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Silicon Spinning

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  1. SiliconSpinning The Beginning of Microprocessors By: Mahmoud Hayat and Will Farrell Mentor: Kwame Owusu-Adom

  2. Introduction • We tested contact angles of different fluids on different surfaces. • We spin coated silicone fluids of different viscosity on a silicon wafer.

  3. The Engineers @ Work

  4. FTA Contact Angle Analyzer

  5. Spin Coating Machine

  6. Picture of Droplet on Contact Angle Machine Contact Angles Drop of Fluid

  7. Contact Angle Graph

  8. Spin Coating @ 1000 RPM

  9. Spin Coating @ 2000 RPM

  10. Spin Coating @ 3000 RPM

  11. Conclusion Of Contact Angles • Surfactant reduces contact angle of DIW on all four surfaces. • Each silicone with the same viscosity has almost the same contact angle on all four surfaces. • All Water based liquids (Water, DIW, and Soap Water) have a bigger contact angle on all surfaces than any of the three silicone fluids. • A large Contact angle = Less Deformation • A smaller Contact angle = More Deformation • The silicone fluids had more deformation than the water based fluids. • Water has more surface energy so water forms a bigger contact angle on all four surfaces.

  12. Conclusion Of Spin Coating • All four fluids, soap water, silicone with 100, 500 and 1000 viscosity, when spun at 1000, 2000 or 3000 RPM for a longer period of time, produces a thinner film on the wafer. • The opposite happens when the wafer is spun for a shorter period of time.

  13. Thank You • SESEY program • Skip Rochefort • Kwame Owusu-Adom • The rest of SESEY students for being cool.

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