Handle shape for 12" FOUP style stainless steel cassette

Close-up of slot shape design of 12" FOUP style stainless steel cassette for semiconductor industry

FOUP style stainless steel cassette filled with semiconductor wafers in cleanroom

Cassette

300 mm Aluminum Process Cassettes with hard clear anodized finish

WHS-M4-1807002

Fully SEMI compliant and compatible with all 300 mm load ports
Exceptional abrasion resistance and long-term stability in thermal and bake applications up to 350°C
Built-in locking latch bar
Manufactured in an ISO 9001–certified facility and CE certified
MOQ information is available in the downloads tab on this page

The WHS-M4 Series is a lightweight aluminum cassette engineered for 300 mm (12") wafers and optimized for high-temperature process environments. Fully SEMI compliant and compatible with all 300 mm load ports, it integrates seamlessly into automated handling systems.

Available with a Hard clear (HC) anodized abrasion resistant aluminum surface finish, the M4 provides exceptional abrasion resistance and long-term stability in thermal and bake applications up to 350°C.

The WHS-M4 features a 25-slot design with a 10 mm (0.393") pitch that matches the profile of an industry-standard FOUP, while offering significantly reduced weight for easier manual handling. A built-in locking latch bar adds an extra layer of safety by preventing wafer movement during transport, even in the case of operator error.

For enhanced ergonomics, the cassette includes SEMI S8-compliant side handles with a power-grip profile, ensuring secure, comfortable handling in cleanroom environments. Robust enough for thick or bonded wafers, the M4 delivers precise wafer positioning and reliable performance across demanding thermal and automated processes.

Manufactured in an ISO 9001–certified facility and CE certified, the WHS-M4 offers proven safety, durability, and long-term reliability for advanced semiconductor wafer management.

MOQ information is available in the downloads tab on this page

Cleanroom designation:	ISO 3 (FS209E class 1)
Esd safe:	Yes
Product Material:	Aluminum with hard clear anodized finish
Slots:	25
Wafer Size:	300 mm (12")