COOLING THE AI REVOLUTION — ONE HOTSPOT AT A TIME
StoneBronzeIronSilicon

Diamond for the Age of AI

Karia Technologies delivers thermal management solutions critical for AI infrastructure, power electronics, and quantum sensing. We manufacture diamond wafers, optics, and powders that provide a deep competitive advantage to innovators. The biggest constraint in AI today isn't compute— it's heat. With ten times the thermal conductivity of silicon and five times faster than copper, we cool the hottest chips ever built. Our customized diamonds are enabling new heights in innovation—one client at a time.

2200
W/m·K Conductivity
5.5
eV Bandgap
fraction
Competitor Cost
Loading product model
Single Crystal Square Plate
Flagship · Type IIa
Single Crystal Square Plate

Optical-grade CVD diamond grown as a single monolithic crystal — the only substrate large enough for multi-die GaN/SiC modules without bonded-tile compromises.

2200 W/m·KThermal Conductivity
3 WeeksQuick TAT + Instock
≤ 25×25 mmMax Size
Ra < 5–10 nmSurface Roughness
View Single Crystal Technology →
Cost-Effective
Polycrystal Round Wafer

Large-area polycrystalline diamond wafers for high-volume thermal management — laser diodes, microwave components, and power electronics at scale.

1800 W/m·KThermal Conductivity
3 WeeksQuick TAT + Instock
1–4 inch wafersSize Range
Ra < 20 nmSurface Roughness
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Abrasives & Finishing
Diamond Powders

Precision-engineered synthetic diamond powders for polishing, lapping, slurry, and surface finishing — micron to nano grade available.

1000 W/m·KThermal Conductivity
3 WeeksQuick TAT + Instock
0.1–100 µmParticle Size
Coated & UncoatedVariants
View Diamond Powders Technology →
AI Infrastructure
Semiconductors
Quantum Computing
Datacenters
Electronics
Biomedical Devices
Aerospace / Defense
Telecomm
Energy
Automotive
Manufacturing
AI Infrastructure
The Heat Spreader Effect

Same chip. Different physics.

Run the same chip, at the same power, with the same cooling — and change only the spreader material. Here's where the junction lands.

Identical conditions · Same die 600 W heat load 60°C cold plate 83°C throttle limit
Copper Spreader · 400 W/m·K

Over the limit

Copper can't move the heat away fast enough. The junction climbs past its throttle limit — and the chip slows itself down to survive.

91°CJunction
▎Copper plate — heat barely spreads
91°C
Junction Temp
+8°C
Over Throttle Limit
Throttling
Clock State
Baseline Life
Karia Diamond Spreader · 2200 W/m·K

Room to run

Same die, same 600 W — diamond spreads the heat 5× faster, so the junction lands well under its limit with headroom to spare.

66°CJunction
▎Diamond plate — heat spreads far
66°C
Junction Temp
−17°C
Under Throttle Limit
Full Clocks
Clock State
~5×
Longer Life
−25°Ccooler

Modeled at identical conditions — same die, same 600 W heat load, same 60°C cold plate. Only the spreader material changes. Junction temperatures follow from the spreading resistance of each material; longer life estimated from the ~2× per 10°C reliability rule. Representative figures, not a measured device spec.

Act 1 · The Demand

AI compute is exploding.

Every model generation needs denser silicon, drawing more power into less space. All of that power becomes heat — concentrated into hot spots smaller than a grain of rice.

Act 2 · The Bottleneck

At 105°C, silicon gives up.

The chip doesn't fail — it throttles. Clocks drop, training slows, and you pay full power for half the compute. This is the thermal bottleneck, and it caps the entire AI stack.

Act 3 · The Material

We grow the solution.

In our reactors, carbon assembles into lab-grown, semiconductor-grade diamond — the highest thermal conductivity of any material on Earth, shaped into wafers and heat spreaders.

Act 4 · The Cooling

Heat exits 10× faster.

Bonded beneath the die, diamond pulls heat out of the hot spot laterally — 10× faster than silicon, 5× faster than copper — before it can build. Watch the junction temperature fall.

Act 5 · The Payoff

Cool chips compound.

No throttling. Full clocks, sustained. More compute per watt, lower energy per query, longer hardware life — and the cycle begins again, one hot spot at a time.

46°C
Junction Temp
100%
Clock Speed
NOMINAL
Status
AI DIE
KARIA DIAMOND · 2200 W/m·K
PACKAGE SUBSTRATE
◆ NO THROTTLING ◆ MORE COMPUTE / WATT ◆ LOWER ENERGY / QUERY
◆ LONGER LIFE

Three Reasons Why Diamond Wins.

PILLAR 01

Unmatched thermal performance.

Diamond moves heat 5× faster than copper and 12× faster than silicon. The most thermally conductive solid material known.

Silicon (Si)
150
Silicon Carbide
370
Gallium Nitride
250
Copper
400
CVD Diamond
>2,000
W/m·K
PILLAR 02

Wide bandgap advantage.

A 5.47 eV bandgap means higher breakdown voltage, lower leakage, and devices that operate at extremes others can't.

1.12 eV
Silicon
3.4 eV
Gallium
Nitride
3.3 eV
Silicon
Carbide
5.47 eV
Diamond
PILLAR 03

Unmatched semiconductor physics.

Across every axis that matters — thermal, voltage, mobility — diamond outperforms Si, GaN, and SiC by orders of magnitude.

Get Started

Ready to think in diamond?

Request a quote, order a $1 sample, or talk to our engineering team about your application.

Ships within 3 weeks · Certificate of Analysis included · No minimum order