⚡ ESD Awareness

Why ESD Matters

Electrostatic discharge (ESD) can silently damage or weaken electronic components long before a failure becomes visible. A static shock too small for a human to feel can destroy microcontrollers, sensors, ICs, MOSFETs, and other sensitive parts. Good ESD habits protect our shared equipment, reduce project failures, and keep the lab reliable for everyone.

🧭 Understanding ESD

ESD occurs when two objects with different electrical charges come into contact. Common causes include:

• Walking on carpet

• Wearing synthetic clothing

• Handling plastic containers

• Sliding components across a bench

• Touching sensitive parts without grounding

You don’t need to feel a shock for damage to occur — most harmful discharges are below human perception.

🛡️ ESD‑Safe Practices in the Electronics Lab

1. Use the ESD Mats

All electronics benches are equipped with grounded ESD mats. When working with sensitive components:

• Place boards, ICs, and modules directly on the mat

• Avoid working on bare wood or metal surfaces

• Keep the mat clean and free of debris

2. Wear a Wrist Strap When Needed

For microcontrollers, ICs, and other static‑sensitive devices:

• Clip the wrist strap to the mat’s grounding point

• Ensure the strap is snug against your skin

• Do not bypass or disconnect the ground lead

If you’re unsure whether a component is sensitive, assume it is.

3. Handle Components Properly

• Hold boards by the edges

• Avoid touching pins, pads, or exposed traces

• Keep components in anti‑static bags until use

• Return unused parts to their anti‑static packaging

4. Control Your Workspace

• Keep plastic containers off the mat

• Avoid sliding boards or tools across the bench

• Keep liquids away from electronics

• Minimize clutter that can snag wires or generate static

5. Power Safety

• Turn off power supplies before wiring changes

• Verify polarity before connecting leads

• Never hot‑plug unknown or untested circuits

🧰 Identifying ESD‑Sensitive Components

Common items that require ESD precautions:

• Microcontrollers (Arduino, ESP32, RP2040)

• Logic ICs (74‑series, CMOS)

• MOSFETs and FET drivers

• Sensors (IMUs, environmental sensors, RF modules)

• Memory chips

• Any component labeled “ESD Sensitive”

If you’re unsure, ask a lead.

🧹 Cleanup & Storage

When finished:

• Return components to anti‑static bags or bins

• Coil and store wrist straps neatly

• Leave the mat clear for the next member

• Report damaged straps, mats, or grounding points to a lead

📡 If You Need Help

If you’re unsure whether a component is ESD‑sensitive or how to use the ESD equipment, ask a lead. They can help you choose the right precautions for your project.