Winwon Chips
Optoelectronic Components Aln Bar Aluminum Nitride Ceramic Structural Rod
The AlN ceramic rod features high thermal conductivity of more than 170W/m.K, high resistivity, low dielectric loss, and excellent insulation properties. It is the premier choice for industrial insulating heat sink materials in high-power machinery, including high-frequency equipment substrates, power transistor modules, microwave power devices, LED, and optoelectronic components.
| Size | Customized |
|---|---|
| Roughness | Ra 0.2um - 0.6um |
| Tolerance | ± 0.05mm |
| Color | Light grey |
| Thermal Conductivity | ≥170W/mk (at 20ºC) |
| Payment | T/T, Western Union, LC, Credit Card |
Aluminum nitride (AlN) ceramic offers thermal conductivity 5-10 times higher than alumina ceramic. It possesses a low dielectric constant, excellent mechanical properties, and is non-toxic with high chemical resistance.
Forming Methods: We utilize three primary production techniques:
• Tap Casting: Ideal for thin sheets (< 2mm).
• Dry Pressed: Suitable for thick sheets and shaped parts.
• Hot Pressed: Used for specialized structural components.
Key Advantages:

| Item | Unit | Aluminium Nitride (AlN) |
|---|---|---|
| Linear expansion coefficient | RT-400ºC, 10-6 | 4.4 |
| Bulk density | g/cm3 | 3.2 |
| Thermal conductivity | 20 ºC, W/m.k | ≥170 |
| Flexural strength | Mpa | ≥330 |
| Bulk resistance | Ω.cm | ≥10¹⁴ |
| Dielectric strength | KV/mm | ≥15 |
| Dissipation factor | 1 MHz | 3 x 10⁻⁴ |
| Dielectric constant | 1 MHz | 9.0 |
With over 20 years of development, we have grown into a modern enterprise specializing in the research, manufacture, and processing of quartz glass and precise ceramics. We supply quartz glass, cuvettes, porous ceramics, thick film resistors, and metal fiber felt to clients in over 109 countries.


Certifications: We prioritize quality through rigorous testing and have passed ROHS, CE, MSDS, and ISO9001 authentication. We hold 25 patents and have been recognized as a High-tech Enterprise.



| Packing Details | Products are packed in plastic/polybags and bubble bags, then placed in foam boxes, and finally secured in wooden cases, cartons, or pallets. |
| Delivery Details | We ship via couriers (TNT, UPS, FedEx, EMS), air, or sea to ensure safe and efficient transportation. |
