Live Procurement Leads for Tech Diamond Suppliers

Target Application: High-Power RF MMIC Amplifiers (Commercial 5G/6G Infrastructure, Satcom, Defense/Aerospace)

1. Key Business Context & Opportunity
This prospect is a fast-growing, publicly traded fabless RF semiconductor design house specializing in high-performance monolithic microwave integrated circuits (MMICs) and ultra-low-noise/high-power amplifier modules. They design and market standard and custom RF components, relying entirely on external semiconductor foundry and packaging partners for device manufacturing.

Following discussions around next-generation thermal management and power-density bottlenecks in advanced RF architectures, technical leadership has formally inquired: "Can you point me to GaN on diamond foundries?"

The prospect has recently launched a major SatCom and Aerospace initiative spanning LEO spaceborne payloads, Ka/Q/V-band terminals, and NTN/Direct-to-Cell arrays. Because these high-frequency space and defense platforms face strict conduction-cooling and SWaP constraints, their engineering leadership is urgently evaluating GaN-on-Diamond foundry pathways to scale power amplifier output without exceeding thermal junction limits.

The prospect is actively seeking a viable fabrication pathway and supply chain for GaN-on-Diamond. Operating as a fabless entity, their primary hurdle is identifying commercial partners capable of bridging diamond material growth/wafering with downstream compound semiconductor foundry processing.

If our grower or foundry network can provide a verified manufacturing route (either via direct GaN-on-diamond epi wafers or post-process diamond wafer bonding/transfer), LattiSpec stands to anchor the material supply and qualification bridge for their upcoming high-power RF product roadmaps.

2. Device Architecture & Target Packaging Pathways
The client requires a commercial manufacturing route capable of handling high-power RF MMICs with thermal conductivity exceeding 2000 W/m-K directly adjacent to the active GaN channel:

• Pathway A (Direct Heteroepitaxy / Epi-Wafer Sourcing):

o Provision of GaN-on-Diamond epi-wafers (typically 100 mm / 4-inch or standard format) compatible with standard front-end GaN fab lines.

• Pathway B (Substrate Transfer / Wafer Bonding Foundry Service):

o Front-end GaN processing followed by substrate removal (Si or SiC host removal) and low-thermal-boundary-resistance (TBR) bonding to CVD Tech Diamond wafer carriers.

• Pathway C (Submount / Heat Spreader Carrier Integration):

o Pre-metallized Tech Diamond submounts/carriers designed for high-density eutectic die attachment of discrete high-power GaN dies.

3. Material, Growth & Substrate Parameters
• Material Type: Polycrystalline or Single-Crystal CVD Tech Diamond substrates / GaN-on-Diamond epi-wafers.

• Thermal Performance Target: Thermal conductivity over 1500 to 2000 W/m-K at room temperature.

• Thermal Boundary Resistance (TBR): Low interface resistance between GaN buffer and Tech Diamond carrier layer ( 10⁷ Ω-cm) to ensure zero parasitic RF substrate coupling and low microwave dielectric loss at GHz/Ka-band frequencies.

4. Metallization, Surface Roughness & Interface Quality
• Surface Polish: Epi-ready surface finish (Ra < 0.5 nm to 1 nm) for direct bonding or growth interfaces. • Metallization (If supplying bonded carriers/submounts): Pre-deposited adhesion and barrier stacks (e.g., Ti/Pt/Au or AuSn eutectic solder layers) compatible with standard die-attach and flip-chip assembly. • Defect Control & Bow: Strict control over wafer warp, bow, and total thickness variation (TTV) to ensure compatibility with automated semiconductor wafer-handling equipment and lithography tools. 5. Action Items for Diamond Growers & Processing Partners 1. Capability Confirmation: Confirm whether your organization can supply: o (a) Finished GaN-on-Diamond wafers/epi. o (b) Polished, wafer-scale CVD Tech Diamond substrates ready for bonding/epitaxy. o (c) Foundry/processing services capable of GaN-to-diamond integration. 2. Foundry Compatibility: Indicate compatible external compound semiconductor foundries or in-house processing lines you currently interface with. 3. Evaluation Samples & Turnaround: Confirm availability and lead time for prototype/evaluation material or test-coupon bonding runs. 4. Commercial Terms: Provide high-level NRE / prototype batch costing and volume scaling capability to formulate our partner response.

See Attached Image

Target Application: High-pressure Diamond Anvil Cell (DAC) testing and fusion diagnostics.
1. Key Business Context & Opportunity
This company is seeking a reliable long-term vendor to replace their current supply chain. The client explicitly noted that their primary pain point with previous CVD and HPHT suppliers has been severe lead-time unpredictability and inventory availability gaps. In the past, they were forced to compromise on technical specifications—accepting basic “optically clear” pieces with variable quality—simply to get material in hand to avoid delaying test runs.
If we demonstrate consistent lead times, tight dimensional control, and defect-free surface finishing on this sample batch, LattiSpec stands to secure their primary recurring production volume for high-pressure diamond anvils.
2. Geometry & Dimensional Specifications
● Geometry Type: Single-crystal DAC anvil
● Outer Diameter / Width: 5.00 ± 0.05 mm
● Total Height / Thickness: 2.00 ± 0.05 mm
● Culet Flat Size: 0.20 mm
● Pavilion Angle: 45° bevel taper
3. Material & Growth Parameters
● Method: Single-crystal CVD Diamond
● Crystallographic Orientation: (100)
○ Note: The client confirmed (100) orientation is preferred for optimized CVD growth, superior compressive load capacity under normal force, and predictable polishing characteristics. They noted (111) orientation could potentially be superior in the future, but (100) is their current baseline.
● Purity / Grade: Standard Optical Grade CVD
○ Note: Ultra-low nitrogen (< 5 ppb) is not required for this iteration; standard optical transmission purity is sufficient. 4. Finishing, Surface Roughness & Defect Quality ● Surface Finish: Ra < 1 nm across top culet and window surfaces. ● Micro-Defect Control (CRITICAL): Surfaces must be optically clear and strictly free of subsurface micro-fractures, pits, or polishing scratches. ○ Technical Context from Client: During extreme pressure runs, metal deforms and flows across the anvil face. In past tests with lower-grade vendors, surface micro-defects led to severe metal galling against the diamond face and subsequent structural failure under load. Zero-defect surface integrity is vital to prevent galling during high-pressure metal deformation. 5. Action Items for Growing & Fabrication Team 1. Inventory Check: Confirm availability of rough CVD single-crystal blocks capable of yield matching 5.00 × 2.00 mm with (100) orientation. 2. Feasibility & Lead Time: Confirm target turnaround time for a 2- to 4-piece prototype batch. 3. Costing: Provide internal fabrication cost and expected yield to finalize the sample quotation..

Description
This lead comes from a Japanese sourcing company that provides supply chain solutions for very large companies.
Materials: Thermal-grade diamond plate. Prefer single-crystal diamond, if possible, though polycrystalline diamond is acceptable if single-crystal is not feasible.
Size: 90mm square (100mm square preferred)
Thermal conductivity: >1000 W/m·K
Thickness: 320 µm +/- 0.03 mm
Surface: One side polished (Ra < 50 nm); One side fine-lapped (Ra < 250 nm) Quantity: Approx. 1–10 units for samples; 100+ units for mass production Company A technology trading company that solves problems faced by R&D and production sites of large manufacturers. The company is 106 years old and operates across nine offices in Japan. They serve a wide range of industries including semiconductors, electronics, chemistry, food, materials, universities and research institutions.

Description

This lead comes from a Japanese sourcing company that provides supply chain solutions for very large companies.

Material: CVD Diamond Optical-grade diamond window for partial reflector. No specific requirement for single crystal versus polycrystalline material
Size: 25.0 mm dia., 1.250 mm thickness
Wedge: 1–4 arcminutes
Coating:
Side 1: 70% R +/- 3% @ 9.29 µm
≤25% R @ 10.591 µm
<58% R @ 9.6 µm *(R% @ 9.3 µm) - (R% @ 9.5 µm) ≥ 5% Side 2: AR coating @ 9.29 µm Total Absorption: ≤0.2% @ 9.3 µm (<0.45% @ 10.591 µm) Angle of Incidence: 0 degrees Input Power: 10 kW Quantity: 1, 5, 20, 50, and 100 units/month Company A technology trading company that solves problems faced by R&D and production sites of large manufacturers. The company is 106 years old and operates across nine offices in Japan. They serve a wide range of industries including semiconductors, electronics, chemistry, food, materials, universities and research institutions.

Description
We have a high-priority ‘Buy Request’ from a Tier-1 U.S. Semiconductor firm recently awarded significant CHIPS Act funding. They are currently scaling a proprietary Diamond-on-GaN (Gallium Nitride) platform for AI data centers and satellite communications. They have moved past R&D and are actively seeking long-term supply partners who can provide 90mm+ polycrystalline wafers with a thermal conductivity threshold of 2000 W/mK.
Company
They are looking for aggressive, high-capacity growers (throughout the world) ready for:
• Direct high-volume purchasing.
• Joint Ventures for in-house production scaling.
• Scientific collaboration to push wafer sizes beyond current limits.
This is a chance to move your production into the ‘Deep Tech’ sector with a partner backed by the U.S. government and the world’s largest AI chipmakers.

Thermal Mgmt

AI Server Mgmt

This lead comes from a well-funded Medical Tech startup in Australia.
Material: Single Crystal Diamond (SCD), CVD-grown (Type IIa / Quantum Grade)
Impurity Profile:
• Single Substitutional Nitrogen ([N_s ]^0): <5" ppb" (Targeting <1" ppb" ) • Boron ([B]): <1" ppb" • Low strain / low dislocation density across the clear aperture Optical Specs: Ultra-low background photoluminescence (PL) baseline under 532 nm excitation (minimal intrinsic fluorescence) Sample Dimensions: 4.0×4.0" mm" and 4.0×6.0" mm" (Thickness: [e.g., 0.5" mm" ]) Orientation: (100) standard crystallographic orientation Scalability Requirement: Looking for suppliers with a roadmap toward 10×10" mm" , 25×25" mm" , and mosaic/wafer-scale substrates Post-Growth Processing Specification (Processing & Implantation Foundries) Surface Polish: Super-polished, double-sided polish with surface roughness R_a<0.5" nm" (sub-nanometer) Ion Implantation: Nitrogen (〖(_^14)"N" 〗^+ or 〖(_^15)"N" 〗^+) implantation capabilities for shallow/near-surface NV center creation Note: Seeking R&D-friendly foundries capable of flexible, small-batch iteration runs across varying doses and beam energies Surface Termination: Surface management capabilities (e.g., oxygen or hydrogen termination) to mitigate surface spin noise and maximize magnetic/voltage sensitivity Sensitivity is their biggest challenge in their final product, so they need crystal purity and minimization of nitrogen and boron content. Also currently doing Ion implantation but it's expensive and they need a replacement company.

This lead comes from a large publicly traded company with offices throughout the world. They provide best in class, comprehensive semiconductor and electronics test solutions. This is a publicly traded company with a market cap over $770 million. They have over 2,300 employees globally.
The principal engineer of the company presented this information about this Tech Diamond Consulting opportunity:
I’m a mechanical engineer working on the development of diamond-SiC composites for thermal-management applications.
I have a high-temperature inert-atmosphere furnace operational and am developing diamond/carbon preforms for pressure-less silicon infiltration. I’m particularly interested in guidance around preform formulation, carbon content, porosity, pyrolysis, and infiltration conditions.
I’m looking for an experienced technical advisor to review our approach and help accelerate the experimental development. Would you or someone on your team be available for a paid consulting role or technical collaboration?