Vacuum-melted high-purity bismuth (Bi, CAS 7440-69-9) planar magnetron sputtering targets in 4N (99.99%) / 4N5 / 5N (99.999%) grades for semiconductor, optical, and research PVD.
High-purity bismuth (Bi, CAS 7440-69-9) planar sputtering targets are consolidated by vacuum melting or hot isostatic pressing and thermomechanically processed to achieve fine, equiaxed microstructure and ≥99.5%–100% relative density. Controlled grain uniformity and ultra-low dissolved gas content (O, N, H, C) ensure stable DC, pulsed-DC, RF, and HiPIMS plasma impedance with minimal droplet or particle generation across the target erosion track.
Fine-grain vacuum-cast/pressed bismuth targets are metallic-indium bonded to OFHC copper backing plates to prevent cracking and local overheating. Each bismuth target is precision-machined to fit 1-inch (25.4 mm), 2-inch (50.8 mm), 3-inch (76.2 mm), 4-inch (100/101.6 mm), or custom rectangular magnetron cathodes, supplied monolithic or indium-bonded to an OFHC copper backing plate, and vacuum-sealed with a batch GDMS or ICP-OES Certificate of Analysis.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Chemical Formula & CAS # | Bi (CAS 7440-69-9) |
| Available Purity Tiers | 4N (99.99%) / 4N5 / 5N (99.999%) |
| Theoretical / Bulk Density | 9.78 g/cm³ |
| Melting Point | 271.4 °C |
| Thermal / Magnetic Note | Strongly diamagnetic; Brittle & low MP 271.4 °C (Indium bond required) |
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 bismuth purity grade (4N (99.99%) / 4N5 / 5N (99.999%)), target diameter and thickness (e.g., Ø 2.00" × 0.125" or 0.250"), flat edge vs. stepped clamp lip, magnetron gun model, and whether monolithic or indium-bonded to an OFHC copper backing plate is required.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Bismuth (Bi) Sputtering Targets RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
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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.