ePAK 2 inch waffle pack chip trays with cover in a spring box
ePAK 2 inch waffle pack chip trays with cover in a spring box
ePAK 2 inch chip tray (waffle pack)
ePAK spring box for a stack of chip trays
ePAK two-piece clip for chip trays
ePAK one-piece clip for chip trays
Chip Trays / Bare Die and Small Components

Chip Trays and Bare Die Trays

Chip trays, also known as waffle packs, for sample die, bare die, finished ICs and other small components. ePAK makes 2 x 2", 3 x 3" and 4 x 4" trays with pockets cut to the die, in conductive materials, with covers, clips, spring boxes and interleaf.

2 / 3 / 4" Tray Sizes
85 2" Tray Designs
504 Pockets per Tray (max)
0.8–40mm Pocket Sizes
  • ✓
    Three Standard Sizes
    2 x 2", 3 x 3" and 4 x 4" outlines, so covers and clips fit every tray of a size.
  • ✓
    Pockets Cut to the Die
    Pockets from about 0.8mm to 40mm and about 0.25 to 2.0mm deep, up to 504 per tray.
  • ✓
    Conductive Materials
    Most trays in conductive PC; conductive PP or PS, or ABS where needed.
  • ✓
    Complete Accessory Set
    Covers, clips, spring boxes and Tyvek® or carbon interleaf.
  • ✓
    Custom Pocket Designs
    When no catalog pocket fits, ePAK designs a new tray around the die size and thickness.
ePAK 2 inch chip tray (waffle pack)
ePAK 4 inch chip tray (waffle pack) with 36 pockets

A Standard Outline With Pockets Cut to the Die

A chip tray holds single die or small parts in a grid of pockets. The outer size is standard, so covers and clips fit every tray of that size; the pockets are designed around the part.

ePAK chip trays come in three standard outlines: 2 x 2″, 3 x 3″ and 4 x 4″. The 2″ tray has the widest choice, with 85 open-tooling designs in the catalog. Pockets run from about 0.8mm up to 40mm and are about 0.25 to 2.0mm deep, and a tray can hold up to 504 pockets.

Most trays are molded in conductive polycarbonate (eM-22). Conductive PP, conductive PS and ABS are used where the part or the process calls for them.

A tray is closed with a cover tray and held with a clip. For 2″ trays there are one-piece clips for a stack of 2, two-piece clips for stacks of 2, 6 or 11, and spring boxes for 6 or 11. 3″ trays have a two-piece clip for a stack of 6; 4″ trays have a one-piece clip for 2 and a two-piece clip for 6. Anti-static Tyvek® (2″ and 4″ trays) or conductive carbon (4″ trays) interleaf sheets sit between the tray and the cover to keep small die from moving.

When no catalog pocket matches the die, ePAK designs a new tray around the die size and thickness.

View Specifications
Trays and accessories

Chip Trays, Covers and Accessories

Choose the tray size, then the cover and the way the stack is held. Add items to your quote with the die size and thickness, and ePAK confirms the tray.

Chip trays

2 x 2" 2" Chip Trays
Widest choice

2" Chip Trays

85 open-tooling designs

Standard 2 x 2" waffle pack trays with pockets from about 0.8mm to 40mm, from 1 up to 456 pockets per tray, mostly in conductive PC.

  • 2 x 2"
  • 85 designs
  • Conductive PC
3 x 3" 3" Chip Trays
Mid-size outline

3" Chip Trays

One catalog design, custom on request

One cataloged 3 x 3" design, with a matching cover and a two-piece clip for a stack of 6; other pocket layouts on request.

  • 3 x 3"
  • Catalog and custom
  • Conductive PC
4 x 4" 4" Chip Trays
Largest format

4" Chip Trays

Up to 504 pockets

4 x 4" waffle pack trays with up to 504 pockets per tray, in 10 catalog designs, with 4" covers, clips and Tyvek® or carbon interleaf.

  • 4 x 4"
  • Catalog and custom
  • Conductive PC

Accessories

Covers Cover Trays
Closing the tray

Cover Trays

Matched to the tray size

Cover trays close the pockets so the die cannot fall out; one cover per tray or per stack.

  • 2, 3 and 4"
  • Conductive
  • Per tray or stack
Clips Clips and Spring Boxes
Holding the stack

Clips and Spring Boxes

For stacks of 2 to 11

One-piece clips, two-piece clips and spring boxes, mostly in conductive PP. Full range for 2" trays (stacks of 2, 6 or 11); 3" and 4" options in the specifications.

  • Stacks of 2, 6 or 11
  • 1- or 2-piece clips
  • Spring boxes
Interleaf Interleaf Sheets
Between tray and cover

Interleaf Sheets

Tyvek® or carbon

Anti-static Tyvek® (eM-03) sheets for 2" and 4" trays, or conductive carbon (eM-20) sheets for 4" trays, to keep small die in place under the cover.

  • 2" and 4"
  • Tyvek® or carbon
  • Anti-static or conductive

Sizes, Pockets and Options

Not listed? ePAK designs a chip tray for your die.

Parts

  • ✓ Sample die and bare die
  • ✓ Finished ICs
  • ✓ Other small components

Tray Formats

  • ✓ 2 x 2" (most designs)
  • ✓ 3 x 3"
  • ✓ 4 x 4"

Specifications

Technical specifications and ordering information.

Chip Tray Specifications
Tray Sizes 2 x 2", 3 x 3", 4 x 4"
2" Catalog Designs 85 open-tooling designs
Pocket Size About 0.8mm to 40mm
Pocket Depth About 0.25 to 2.0mm
Pockets per Tray 1 to 504 (2" trays up to 456)
Main Material Conductive PC (eM-22)
Other Materials Conductive PC (eM-153-BLK), conductive PP (eM-01-BLK, eM-09-BLK, eM-37-BLK), conductive PS, ABS
Covers Cover trays per tray size
Clips, 2" Trays 1-piece (stack of 2), 2-piece (stacks of 2, 6 or 11)
Clips, 3" Trays 2-piece (stack of 6)
Clips, 4" Trays 1-piece (stack of 2), 2-piece (stack of 6)
Clip Materials Conductive PP (eM-01-BLK); 2" 1-piece clip also in carbon-fiber PP (eM-46-BLK) or ABS (eM-24)
Spring Boxes Stacks of 6 or 11 (2" trays only)
Interleaf Anti-static Tyvek® eM-03 (2" and 4"); conductive carbon eM-20 (4" only)
Custom New pocket designs on request

Need a chip tray for your die?

Send the die size, thickness and quantity per tray, and ePAK will match a catalog tray or design a custom one.

Contact Sales

Frequently Asked Questions About Chip Trays

Common questions about chip trays and bare die handling

Technical Documentation

Need technical specifications for your project? Technical drawings, datasheets, and 3D models are available upon request.

Contact Engineering