ESD & Cleanroom Thermoforming for Electronics Handling

Electronic assemblies are unforgiving about two things: static and handling damage. Thermoformed ESD trays and dunnage address both — but only if the material and the tooling are specified correctly.

Permanent vs coated ESD

Not all “ESD” sheet is equal. Topical (coated) antistatic wipes off and loses performance in dry conditions, so it is unsuitable for repeated handling. Permanently static-dissipative grades disperse charge through the material itself, independent of humidity, for the life of the tray. For component handling you want the permanent kind — typically a surface resistivity in the 10⁶–10⁹ Ω/sq band, with static-decay times well under two seconds.

We form permanently static-dissipative ABS and PET grades so trays keep their ESD performance run after run.

Why the pocket geometry matters

An ESD tray is only useful if the component sits exactly where automation expects it. That means:

• Datum-referenced pockets — cavities located to the same datums the pick-and-place uses.
• Tight, repeatable trimming — 5-axis CNC trimming so every cavity is in the same place on every tray.
• A denest feature — so trays separate cleanly on automated lines.

Formed to the component CAD, the pockets locate and protect the assembly through transit and automated handling without rattle.

Cleanroom production and traceability

For sensitive electronics and medical electronics, cleanliness matters as much as static control. Trays destined for clean environments are produced and packed under controlled conditions to keep them contamination-free, and — because we extrude the sheet ourselves — everything is traceable to the resin lot, with COA and inspection documentation on request.

Where ESD thermoforming is used

• Component and PCB handling trays
• Work-in-progress dunnage between process steps
• Kitting and presentation trays for assembly
• Enclosures and liners near sensitive electronics
• Semiconductor and cleanroom carriers

Getting it right first time

The common failures we see are coated ESD chosen where permanent was needed, and pockets that were not referenced to the automation datums. Both are avoidable at the DFM stage. Send us the component CAD and your handling requirement (resistivity band, cleanliness, automation) and we will specify the grade and pocket layout — start with a DFM review, or read more about our ESD & component trays.