Cu-Metallized Diamond
Thermal + Electrical Integration

Wafer-Scale
Cu-Metallized Diamond

Extreme thermal conductivity (>2200 W/m·K) combined with precision electrical routing. Custom trace layouts for direct die attachment and multi-chip power modules.

Heat Removal + Power Delivery in One

Copper metallization enables direct die attachment and electrical routing while diamond handles extreme thermal loads.

Up to 100mm Form Factor

Round, square, or octagonal baseplates from 20×20mm up to 100mm. Custom shapes via DFM for CPO switches and optical engines.

Custom Cu Trace Routing

Custom copper (Cu) plating and trace routing. NRE required for custom masking. Other metals (Au, Pt, Pd, Ag, W) available.

>2200 W/m·K Thermal Conductivity

Single-crystal diamond base instantly removes junction heat, extending laser lifespan and increasing optical output power limits.

Metallization Options

Custom Metal Systems

Our Cu-metallized SCD substrates are engineered for extreme-density AI hardware. Custom trace layouts allow direct die attachment while drawing away devastating heat loads.

Standard Configuration

  • Copper (Cu): Primary metallization for thermal and electrical performance
  • Thickness: 300 µm to 500 µm standard
  • Geometry: Custom shapes from 20×20mm to 100mm

Other metals available: Au, Pt, Pd, Ag, W — contact us for custom metallization requirements.

Specifications

Base Diamond
Material Single Crystal Diamond (SCD)
Thermal Conductivity >2200 W/m·K
Metallization
Primary Metal Copper (Cu)
Other Options Au, Pt, Pd, Ag, W
Custom Routing NRE for custom masking
Dimensions
Geometry 20×20mm to 100mm
Shapes Round, Square, Octagonal
Thickness 300–500 µm
Matched Parts & Applications

Built for Extreme-Density AI Hardware

From CPO switches to laser arrays, our Cu-metallized substrates enable next-generation power delivery and thermal management.

CPO Switch Baseplates

51.2T/102.4T network switch ASICs

A single 100mm Cu-plated SCD baseplate provides identical CTE and sub-0.1K temperature uniformity across the entire switch, maintaining absolute optical alignment while providing electrical routing for drivers.

High-Density Power Delivery Networks

48V to 1V multi-chip power conversion

Cu-metallization allows direct AuSn soldering of multiple power diodes and MOSFETs onto a single diamond plane. Shrinks footprint by allowing tight component packing without thermal cross-talk.

ELSFP Laser Submounts

15×15mm to 20×20mm CW laser arrays

Copper traces enable multi-channel electrical driving of dense EML/DML laser arrays while the SCD base instantly removes junction heat, extending laser lifespan and increasing optical output power limits.

Standard Configurations

While we offer Custom DFM for exact footprints, our most frequently manufactured configurations are:

Application Dimensions Metallization Typical Use
CPO Switch Baseplates 10×80mm (extendable) Cu routing + AuSn solderable Central switch ASIC + 16 PIC engines
ELSFP Laser Submounts 8×32, 9×36, 10×40mm Multi-channel Cu routing CW laser arrays for CPO external light sources
CPO Optical Engine Substrates 8×16 to 10×80mm Custom Cu + AuPd PIC/EIC chiplet interposer substrates
Power PDN Modules 40×40mm to 60×60mm Cu traces + AuSn 48V to 1V conversion next to AI
Custom Shapes 8×8 to 10×10mm (standard) Round, Square, Octagonal Any high-density multi-chip module

Need Custom Trace Layout?

We provide NRE for custom copper masking and trace routing. Contact us with your CAD requirements and we'll provide a quote within 48 hours.