Advanced Semiconductor Materials

Engineering the foundation for next-generation semiconductors.

Quantum Crystal Technologies delivers advanced GaN and diamond substrate platforms — including GaN-on-Diamond — uniting in-house R&D with controlled global manufacturing.

Layered semiconductor substrate stack on a diamond base
2,200 W/m·KDiamond thermal conductivity — the highest of any substrate
24 sectorsFrom defence and aerospace to energy and agri-tech
In-house R&DFrom first research to finished product, under one roof
UK basedGlobally aligned manufacturing under QCT governance
What we do

Where substrate innovation meets manufacturing execution.

QCT operates as the platform layer between semiconductor materials innovation and manufacturing infrastructure — so advanced substrate programmes ship with performance, scale, and control.

Diamond substrate wafer architecture

Substrate Architecture

We define substrate architecture around real application requirements — thermal performance, power density, and next-generation device integration.

Semiconductor manufacturing facility

Manufacturing Orchestration

Qualified manufacturing partners execute against validated QCT specifications — giving every programme controlled, scalable production.

Advanced materials laboratory execution

Materials-Controlled Execution

Each programme is managed across its full lifecycle — performance consistency, supply continuity, and clear governance throughout.

How we work

A controlled engineering lifecycle.

Every QCT programme moves through five defined stages — from first specification to long-term supply.

Substrate Definition

Application requirements are translated into a clear substrate definition and target performance envelope.

Specification Engineering

Material structures and layer configurations are engineered into validated, manufacturable specifications.

Prototype Execution

Prototypes confirm material performance, thermal behaviour, and system compatibility before scale.

Production Alignment

Qualified manufacturing partners are aligned to the programme under QCT technical governance.

Scaled Supply Continuity

Production scales with controlled quality assurance and long-term supply continuity.

Ready to define your substrate programme?

Engage with QCT to align advanced semiconductor materials with your application requirements.

Initiate programme discussion