Coin-Stack Density, Cassette-Grade Wafer Canister Protection
The eLX platform replaces the compromises of traditional coin-stack shippers with a patented ring-separator system engineered to eliminate inter-wafer movement during transport, across 150mm, 200mm, and 300mm wafers.
Horizontal coin-stack shippers have always offered better packing density than vertical cassettes, but the trade-off was wafer-to-wafer contact, lateral shifting under vibration, and the bond pad and bump damage that follows. The eLX Zero-Movement Canister was designed to remove that trade-off. Each wafer rests face down on the raised ridges of a ring separator sized to its diameter, so only the non-critical edge zone ever touches the carrier. When the lid is closed, internal fingers in the canister body adapt to the stack diameter and lock the ring stack against lateral travel.
The platform covers 150mm, 200mm and 300mm wafers in both short and tall enclosures, with two-latch and four-latch closures. The tall 200mm and 300mm canisters are dimensioned for full 25-wafer lots when paired with the appropriate ring separator. Self-stacking Fixed Height Ring Separators (FHRS) use outside stacking supports to set positive separation between wafers and to take stack-weight pressure off the wafer edges, which is critical for thinned, bumped and Taiko device wafers.
Because every part of the eLX is reusable and built for high-cycle service, the economics scale as well as the protection does. The canisters run on existing automated packing lines, ring separators and packing consumables ship in bulk, and OverPak outer shippers are available for international transit. The combination of engineered wafer protection, drop-in compatibility with installed packing lines, and broad coverage across 150mm, 200mm and 300mm wafers is what ePAK means by lowest cost of ownership in the wafer shipping category.
