Why JEDEC Trays Use PEI Material
Very High Heat Resistance
PEI has a glass transition temperature (Tg) ≈ 215 °C.
Withstands high-temperature reflow (≥150~180 °C), IC baking, and multiple heating cycles without warping.
Dimensional Stability
Extremely low creep and shrinkage.
Maintains tight tolerances in cavity size and tray flatness, critical for automation and stacking.
Low Moisture Absorption
Better than many other engineering plastics, keeping dimensional accuracy even in humid environments.
ESD Control
PEI can be compounded with carbon fiber, carbon black, or conductive fillers to achieve static-dissipative or conductive grades.
Ensures safe handling of sensitive ICs.
High Mechanical Strength
Resists cracking, abrasion, and mechanical stress from repeated robotic handling and stacking.
Long Service Life
Because of its thermal stability + toughness, PEI trays can be reused many more times
This makes them attractive when durability and reusability matter more than initial cost.
Why Not Always PEI?
Cost: PEI is much more expensive than MPPO.
Processing: Higher molding temperature requirements (340–400 °C), more challenging to mold than other raw material.
Over-spec in some cases: For many IC packages, MPPO or PPE already provides enough heat resistance, so PEI is only used when the extra performance is necessary.
Widely used for the packaging, storage, and transportation of IC packages, semiconductor chips, electronic modules, and optical devices.
| Material | MPPO, PEI, PES, PPE, ABS, etc. | Outline Size (LxWxT) | 322.6x135.9x12.19mm ("T" is customizable) |
| Package Type | BGA, DIP, QFN, QFP, LGA, SOP, etc. | Cavity Size | Customizable |
| Color | Black, Red, Yellow, Green, White, etc. | Cavity Quantity | Customizable |
| Mold Type | Injection Molding | Flatness/Warpage | MAX 0.76mm |
| Surface Resistance | 1.0x104~1.0x1011Ω/sq | Certificate | RoHS |
| Service | Accept OEM and ODM | ||
| Design | Based on original samples, or custom designs can be created | ||
| Packing | By carton or according to customer’s request | ||
| Sample | Sample charge: 1. Free for stock samples 2. Custom tray samples to be negotiated Sample time: After the draft is confirmed and payment is arranged | ||
| Lead Time | 5-7 Working days (The exact lead time depends on the order quantity) | ||
Address
Building A11, Zone D, West Industrial Zone, Minzhu Community, Shajing Street, Baoan District, Shenzhen City, GD Province CN
Tel
+86 755 2322 9236
