MPCVD Method Polytype Diamond Substrate Wafers For GaN Epitaxial

customzied size MPCVD method GaN&Diamond Heat Sink wafers for Thermal management area

MPCVD method polytype Diamond substrate wafers for GaN epitaxial

Diamond has wide band gap, high thermal conductivity, high breakdown field strength, high carrier mobility, high temperature resistance, acid and alkali resistance, corrosion resistance, radiation resistance and other superior properties
High power, high frequency, high temperature fields play an important role, and are considered as one of the most promising wide band gap semiconductor materials.

Advantages of Diamond
• Highest room temperature thermal conductivity of any material (up to 2000W/m.k) • Surface roughness and high flatness of growth surface<1nm can be achieved
• Electrical insulation • Extremely light weight
• High mechanical strength • • Chemical inertia and low toxicity
• Wide range of available thicknesses • Wide range of diamond bonding solutions

Diamond is a super heat dissipation material with excellent performance:
• Diamond has the highest thermal conductivity of any material at room temperature. And heat is the important reason of electronic product failure.

According to statistics, the temperature of the working junction will drop Low 10 ° C can double the device life. The thermal conductivity of diamond is 3 to 3 higher than that of common thermal management materials (such as copper, silicon carbide and aluminum nitride)
10 times. At the same time, diamond has the advantages of light weight, electrical insulation, mechanical strength, low toxicity and low dielectric constant, which make diamond, It is an excellent choice of heat dissipation materials.

• Give full play to the inherent thermal performance of diamond, which will easily solve the "heat dissipation" problem faced by electronic power, power devices, etc.

On the volume, improve reliability and enhance power density. Once the "thermal" problem is solved, the semiconductor will also be significantly improved by effectively improving the performance of thermal management,
The service life and power of the device, at the same time, greatly reduce the operating cost.

Our  Prodcuts Advantage 
 1.International leading grinding and polishing capability, achieving surface roughness of growth surface Ra ＜ 1nm
Composite deposition is an efficient and precise machining method for diamond atomic level surface based on plasma assisted grinding and polishing. For 2-inch diamond substrate, the surface can be coarsened
The roughness is reduced from tens of micrometers to less than 1nm. This technology has high removal efficiency, can obtain atomic level flat surface, and does not produce sub surface.
Surface damage. At present, only a few manufacturers have diamond super surface grinding and polishing to Ra ＜ 1nm, and the chemical composite has reached the international leading level.

2.Ultra high thermal conductivity, T C:1000-2000 W/m.K
When the thermal conductivity is required to be 1000~2000 W/m K, diamond heat sink is the preferred and only optional heat sink material. Composite SMT can be determined according to customer requirements
At present, three standard products have been launched: TC1200, TC 1500 and TC 1800.

3. Provide customized services such as thickness, size and shape
The thickness of the composite deposited diamond heat sink can range from 200 to 1000 microns, and the diameter can reach 125 mm in the first half of 2022. We have laser cutting and polishing capabilities to provide customers with geometric shape, surface flatness and low roughness, as well as metallization services that meet their specific requirements.

Typical Applications

General properties of diamond

The most important properties of CVDdiamond are the

✔Unsurpassed hardness

✔Extremely high thermal conductivity

(＞1800W/mK,five times that of copper)

✔Broad band optical transparency

✔Extremely chemically inert:

Not affected by any acid or other chemicals

✔Graphitization only at very hightemperatures

(T＞700℃ in an oxygen containing

and 1500℃ in an inert atmosphere)

Application : GaN on diamond growth; Semiconductor laser; Radar; Optical module;quantum computing; GaN hemt device;

Diamond Thermal Management solutions

✔Thermal conductivity tailored to suit both performance and cost requirements

✔Custom sizes and shapes for your specific solution

✔Optical transparency when needed

✔Means to quantify bonding efficacy and stack performance

Size  specification Detail 

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