Thin tape-cast electronic substrates (96% / 99.6%) and thick precision-ground alumina setter and wear plates with optional laser cutting or CNC machining.
Alumina ceramic plates span two specialized manufacturing routes: thin tape-cast substrates (0.25–2.0 mm in 96% thick-film or 99.6% thin-film polished grades) for power electronics, hybrid microcircuits, and PVD deposition carriers; and thick pressed/sintered plates (3–40 mm) diamond-blanchard ground flat for kiln setters, vacuum chucks, HV insulation barriers, and abrasive wear liners.
CO2/fiber laser cutting, laser via drilling, ultrasonic milling, and diamond lapping allow rapid turnaround on custom geometries without hard tooling.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Thermal Conductivity (RT) | 24–32 W/m·K (grade dependent) |
| Dielectric Constant (1 MHz) | 9.4–9.9 |
| Volume Resistivity (RT) | >10¹⁴ Ω·cm |
| Surface Finish Options | As-fired (Ra ~0.6 µm), lapped (Ra <0.2 µm), polished (Ra <0.03 µm) |
| Max Working Temp | 1,600–1,750 °C |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Specify length × width × thickness, alumina grade (96% electronic, 99.5% structural/setter, or 99.6% thin-film), surface finish (as-fired, ground, or polished one/both sides), flatness requirement, and DXF/PDF drawing for holes or slots.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Alumina Ceramic Plates RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-CER-INSCustom-machined electrical, RF, vacuum, and thermal ceramic bushings, flanged washers, standoffs, and heater bobbins built to your engineering drawing.
TB-SAP-SBEpi-ready single-crystal sapphire substrates (C-, R-, A-, M-plane) and Mohs-9 optical sapphire pressure/IR windows from 180 nm UV to 5.0 µm mid-IR.
TB-HBN-MCHot-pressed hexagonal boron nitride (h-BN) crucibles, rods, plates, and precision CNC components combining extreme thermal shock resistance, molten-metal non-wetting, and electrical insulation.
TB-MGC-STKZero-porosity fluorphlogopite mica glass-ceramic rods, plates, and finished CNC parts that machine with standard metalworking tools with zero post-firing shrinkage.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.