Silicon sputtering target price

The price is primarily driven by purity levels (typically 4N to 6N, or 99.99% to 99.9999%) and relative density (should be >99%). Higher purity reduces particle contamination during thin-film deposition, which is critical for semiconductor and solar cell applications. Additionally, the doping type (P-type or N-type) and resistivity range significantly impact the manufacturing complexity and final cost.

Silicon targets are usually produced via Vacuum Melting or Hot Pressing. Vacuum melting offers higher purity and better homogeneity, making it more expensive but suitable for high-end electronics. Hot pressing is more cost-effective for large-area targets used in architectural glass coating. Buyers should ensure the grain size is uniform and fine to prevent 'nodule' formation during the sputtering process.

Suppliers should provide a Certificate of Analysis (COA) for every batch, detailing impurity levels via GDMS (Glow Discharge Mass Spectrometry). Ensure the supplier follows ISO 9001 for quality management. For international trade, compliance with RoHS and REACH is essential to ensure the material is free from restricted hazardous substances.

Silicon is brittle; therefore, most targets require bonding to a backing plate (usually Oxygen-Free Copper) using Indium (In) or Elastomer bonding. The cost of the Indium bonding service and the copper plate itself can add 20-40% to the total price. Buyers should specify the ultrasonic testing (UT) requirements to ensure a bonding ratio of >95% to prevent target cracking during high-power sputtering.

The main risks include physical damage during transit due to the material's brittleness and oxidation of the target surface. To mitigate this, insist on vacuum-sealed packaging and robust wooden crates. Another risk is specification mismatch; always provide a detailed technical drawing including tolerances (typically +/- 0.1mm) to avoid fitment issues with your cathode.

Focus on volume-based pricing tiers; silicon target prices drop significantly when ordering in batches of 5 or more due to setup costs. Negotiate for 'Target Recycling' credits, where the supplier buys back the spent target backing plates. For payment security, utilize Escrow services or Trade Terms that release final payment only after the third-party inspection report is verified.

Silicon targets are often classified under HS Code 2804.61 (Silicon >99.99%) or 3818.00 (Chemical elements doped for electronics). Check for anti-dumping duties or specific import licenses required in your country. For shipping, Air Freight is recommended over Sea Freight to minimize the duration of exposure to humidity and mechanical vibration, ensuring the integrity of the bonding layer.