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Build an STM by yourself

Build an STM by yourself. Build an STM with $100. Commercial research STM systems cost up to $250,000 or more. Less powerful “student” systems run around $15,000 but offer little to the researcher. The STM that we are building here will end up costing about $100 in parts. STM costing $100.

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Build an STM by yourself

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  1. Build an STM by yourself

  2. Build an STM with $100 Commercial research STM systems cost up to $250,000 or more. Less powerful “student” systems run around $15,000 but offer little to the researcher. The STM that we are building here will end up costing about $100 in parts.

  3. STM costing $100

  4. STM系统框图 Vref   探针 针尖 It 比较 放大器 前置 放大器   样品  It 压电陶瓷扫描器 积分器 VZ 低压/高压 放大器  Scanner 反馈控制 A/D & D/A Z  扫描 控制 VX X 低压/高压 放大器 放大器 VY Y

  5. Step 1: Making the STM Scanner

  6. X scan Y scan Z feedback

  7. Step 2:Making Mechanical Approach Mechanism

  8. 170m/turn 5 m/turn STM scanner STM tip Sample

  9. Step 3: Designing Electronic Circuits Pre-amplifier (current to voltage converter)

  10. STM probe unit with pre-amplifier

  11. PID feedback (Tip-sample gap control)

  12. X scanning and Y scanning amplifiers

  13. Electronics Bill of Materials

  14. Mechanical Bill of Materials

  15. Step 4: STM experiments

  16. Step 5: Try to win a Nobel Prize

  17. Thank you Very Much ! 26/34

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