Contents
How do you handle ESD sensitive components?
When handling ESD sensitive parts: Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. Wear a grounded wrist strap against your skin to eliminate static on your body. Put the ESD wrist strap on your wrist.
What components are ESD sensitive?
Common electrostatic-sensitive devices include:
- MOSFET transistors, used to make integrated circuits (ICs)
- CMOS ICs (chips), integrated circuits built with MOSFETs. Examples are computer CPUs, graphics ICs.
- Computer cards.
- TTL chips.
- Laser diodes.
- Blue light-emitting diodes (LEDs)
- High precision resistors.
How do I choose a ESD capacitor?
Through experimentation, TDK has determined that there are three critical parameters that help the design engineer determine the best value for an ESD capacitor: voltage breakdown, capacitance, and DC bias. Voltage breakdown is a test method used to quantify the voltage level strength of a capacitor.
How are electronic components sensitive to ESD events?
This is how ESD events create latent failures and defects in electronic components. The damage may not be enough to show problems right away, but can start a problem that eventually cascades into a failure later on. As we saw earlier, electronic components are very sensitive to ESD.
Which is the best way to transport ESD sensitive boards?
Conductive bins are just fine for transporting ESD sensitive boards. Any protective packing in the bin to avoid mechanical damage to the boards must be conductive, for instance conductive foam. The ground conductor (s) of the board should be in electrical contact with the bin. You must also make sure you load and unload the bins correctly.
What’s the difference between ESD and non-ESD sensitive?
What is considered ESD Sensitive and non-ESD Sensitive? For example, if an integrated circuit has an HBM rating of 8 kV but is now embedded in a circuit board, which is now installed inside an equipment assembly, I would think the ESD susceptibility of the part is greatly lowered at the equipment level.
What is the ESD susceptibility test would I use?
What ESD susceptibility test would I use to determine if the completed equipment containing ESDS parts is ESD hardened to > 16 kV HBM such that it’s considered non-ESDS? From my current understanding, equipment/system level (e.g., IEC) ESD tests are used to determine the robustness of external surfaces and ports of equipment containing ESDS parts.