Engineered Materials & Labware • Lot COA Included154 Product Lines · CAS & Formula Index · AI / Agent Ready
Thin Film Materials · TB-PVD-ALN

Aluminum Nitride (AlN) Sputtering Targets

High-density hot-pressed aluminum nitride (AlN, CAS 24304-00-5) ceramic sputtering targets in 3N5 (99.95%) / 4N purity, indium-bonded for arc-free RF and pulsed-DC thin-film deposition.

Alternate & search designations: Aluminum Nitride RF magnetron target, AlN PVD dielectric cathode disc, Hot-pressed 4N AlN piezoelectric & thermal RF sputtering target
Purity / Grade Options3N5 (99.95%) / 4N
Standard DimensionsØ 1", 2", 3", 4", 6" × Thickness 2–6.35 mm (+ OFHC Cu Backing Plate)
Available ConfigurationsHot-pressed / HIP high-density ceramic disc; Metallic Indium bonded to OFHC Cu
Ordering & MOQSpecification-based quote · Prototype & production lots

Material & Engineering Overview

Sintered by vacuum hot-pressing or Hot Isostatic Pressing (HIP) from sub-micron 3N5 (99.95%) / 4N precursor powders, our aluminum nitride (AlN, CAS 24304-00-5) sputtering targets achieve high relative density (typically 96%–99.5% of 3.22 g/cm³ theoretical density) and homogeneous phase stoichiometry. High density suppresses outgassing, surface nodule formation, and plasma arcing during RF magnetron or reactive pulsed-DC sputtering.

Hot-pressed binder-free AlN ceramic targets allow direct RF magnetron sputtering of piezoelectric c-axis (0002) AlN and high-thermal-conductivity dielectric films. Because ceramic targets have low thermal conductivity and limited thermal-shock resistance, we strongly recommend ordering AlN targets metallic-indium bonded to an OFHC copper backing plate. Each target ships vacuum-packed with its batch chemical assay and density COA.

Standard Shipment Documentation: Manufacturer Lot COA (stoichiometry, trace metal ICP assay in ppm, sintered bulk density) and backing-plate bond inspection.

Primary Research & Industrial Applications

  • RF BAW/FBAR and SAW acoustic filter piezoelectric layers
  • High-thermal-conductivity (>150 W/m·K bulk) heat-spreading dielectric passivation
  • Deep-UV optoelectronic buffer layers on sapphire and SiC substrates
  • High-temperature oxidation-resistant surface coatings

Nominal Material Reference Properties

Property / MetricNominal Reference Value (Grade Dependent)
Formula & CAS #AlN (CAS 24304-00-5)
Purity Grades3N5 (99.95%) / 4N
Bulk / Theoretical Density3.22 g/cm³ (≥96%–99.5% relative density)
Recommended BondingMetallic Indium bond to OFHC Cu backing plate (<120 °C max run temp)
Recommended Power RampRF / Pulsed-DC ramp at 5–10 W/min with ≥2–4 L/min cooling water

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.

What to Specify in Your Quote Request

Specify AlN purity (3N5 (99.95%) / 4N), exact dopant weight/mole ratio if applicable, ceramic disc diameter × thickness (e.g., Ø 50.8 × 3.175 mm), backing-plate geometry, and sputtering chamber gun model.

Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.

Prepare Aluminum Nitride (AlN) Sputtering Targets RFQ ↗

Technical & Procurement FAQ

Why should aluminum nitride (AlN) targets be indium-bonded to an OFHC copper backing plate?
As a brittle ceramic, AlN develops steep radial thermal gradients under RF plasma heating; full-coverage metallic indium bonding transfers heat efficiently into the water-cooled copper backing plate and prevents thermal-stress cracking.
What RF power conditioning procedure avoids cracking a new AlN target?
Start at low RF power (~15–25 W on a 2-inch target), ramp slowly at 5–10 W/min over 20–30 minutes while monitoring reflected power, and never exceed ~2–4 W/cm² power density on dielectric oxide/nitride targets.
Is oxygen or nitrogen reactive gas backfill needed when sputtering AlN?
RF sputtering in pure argon often produces slightly anion-deficient films; introducing 1%–10% O2 (for oxides) or N2 (for nitrides) in the Ar plasma restores full stoichiometry and optical transparency.
Cross-referenced catalog

Related technical materials.

Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.

Oxide & Nitride Ceramic Sputtering Targets (ITO / ZnO / Al2O3 / SiO2 / TiO2 / AlN / SiC, CAS 50926-11-9) — Thin Film Materials studio photographTB-PVD-OX
Thin Film MaterialsITO / ZnO / Al2O3 / SiO2 / TiO2 / AlN / SiC · 50926-11-9

Oxide & Nitride Ceramic Sputtering Targets

High-density hot-pressed and HIP-consolidated oxide, nitride, carbide, and sulfide ceramic sputtering targets (ITO, AZO, ZnO, Al2O3, SiO2, TiO2, BaTiO3) indium-bonded for arc-free RF/pulsed-DC PVD.

Purity / Grade99.9% (3N) / 99.99% (4N) / 99.995% (4N5)
Typical SizeØ 1", 2", 3", 4", 6" × Thickness 2–6 mm (+ Cu Backing Plate)
Aluminum (Al) Sputtering Targets (Al, CAS 7429-90-5) — Thin Film Materials studio photographTB-PVD-AL
Thin Film MaterialsAl · 7429-90-5

Aluminum (Al) Sputtering Targets

Vacuum-melted high-purity aluminum (Al, CAS 7429-90-5) planar magnetron sputtering targets in 4N (99.99%) / 5N (99.999%) / 5N5 grades for semiconductor, optical, and research PVD.

Purity / Grade4N (99.99%) / 5N (99.999%) / 5N5
Typical SizeØ 1", 2", 3", 4", 6", 8" × Thickness 2–12.7 mm; Rectangular
Aluminum-Scandium (AlSc Alloy) (Al1-xScx (Sc 5–43 at.%)) Sputtering Targets (Al1-xScx (Sc 5–43 at.%), CAS 60683-64-9) — Thin Film Materials studio photographTB-PVD-ALSC
Thin Film MaterialsAl1-xScx (Sc 5–43 at.%) · 60683-64-9

Aluminum-Scandium (AlSc Alloy) (Al1-xScx (Sc 5–43 at.%)) Sputtering Targets

Vacuum-melted high-purity Aluminum-Scandium (AlSc alloy) (Al1-xScx (Sc 5–43 at.%), CAS 60683-64-9) planar magnetron sputtering targets in 4N (99.99%) Vacuum-Melted / HIP Intermetallic grades for semiconductor, optical, and research PVD.

Purity / Grade4N (99.99%) Vacuum-Melted / HIP Intermetallic
Typical SizeØ 1", 2", 3", 4", 6", 8" × Thickness 2–12.7 mm; Rectangular
Alumina Ceramic Plates (Al2O3, CAS 1344-28-1) — Technical Ceramics studio photographTB-AL2O3-PL
Technical CeramicsAl2O3 · 1344-28-1

Alumina Ceramic Plates

Thin tape-cast electronic substrates (96% / 99.6%) and thick precision-ground alumina setter and wear plates with optional laser cutting or CNC machining.

Purity / Grade96% / 99.5% / 99.6% Al2O3
Typical SizeThickness 0.25–40 mm; up to 400 × 400 mm
Custom & catalog specifications

Need pricing, lead time, or custom dimensions?

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.

Start a quote request ↗