Cu-Metallized Diamond

CPO Switch
Baseplates

Ultra-flat diamond thermal baseplates with Cu routing for 51.2T–102.4T CPO switches. Standard 10×80mm with custom extensions available to match any OEM footprint.

For 51.2T–102.4T CPO Switches

Co-packaged optics switches integrate optical engines directly adjacent to the switch ASIC, creating unprecedented thermal density. Diamond baseplates spread heat across the full switch package footprint.

Our Cu-metallized diamond baseplates provide thermal spreading while Cu routing layers enable electrical connections—all in a single package-compatible substrate.

Broadcom Bailly 51.2T

~80×80mm thermal footprint. 8×800G ports with integrated optical engines.

Broadcom Tomahawk 6 102.4T

~100mm thermal footprint. Next-generation 102.4T switching with CPO support.

NVIDIA Spectrum-X

AI networking switch with CPO architecture. Optimized for GPU cluster interconnect.

Specifications

Standard sizes and custom configurations available.

Standard Sizes

6C Standard Sizes 8×64, 9×72, 10×80mm (extendable)
Diamond Thickness 0.3mm – 1.0mm
Cu Routing Layers 1 – 4 layers
Cu Track Width ≥ 50μm
Flatness (TTV) < 10μm

Thermal Properties

Thermal Conductivity 2,000 W/m·K
Temperature Uniformity Sub-0.1K
Max Operating Temp 450°C
Coefficient of Expansion 1.0 – 2.3 × 10⁻⁶/K
Thermal Resistance < 0.5 K/mm²

Target Component Alignment

Target Switch OEM Package Size 6C Baseplate Size Cu Routing
Broadcom Bailly 51.2T Proprietary (NDA required) 10×80mm (extendable) 2-layer
Broadcom Tomahawk 6 102.4T Proprietary (NDA required) 10×80mm (extendable) 4-layer
NVIDIA Spectrum-X Proprietary (NDA required) 10×80mm (extendable) 2-layer

Est. thermal footprint based on public switch die sizes and packaging research. Exact specifications available under NDA.

Key Features

Thermal Spreading

2,000 W/m·K diamond spreads heat across full package footprint

Cu Interconnect

1-4 layer copper routing for electrical signals and power delivery

Sub-10μm TTV

Ultra-flat surface for die attach and reliable solder joints

Custom Footprints

DFM support for specific OEM switch packages and CAD data

Ready to Integrate?

Share your switch package specifications and we'll provide a baseplate design proposal within 48 hours.