Overview
Calcium Tin Target is a specialized material used in physical vapor deposition (PVD) processes, particularly sputtering. It consists of an alloy or compound of calcium and tin, carefully formulated to achieve specific thin film properties. The target is manufactured through precise metallurgical processes to ensure uniform composition and microstructure. In industrial applications, Calcium Tin Targets are typically bonded to backing plates for thermal management during the sputtering process. The material's composition can be adjusted to meet different application requirements, with common ratios ranging from 10% to 50% calcium by weight.
Physical and Chemical Properties
Calcium Tin Targets exhibit unique physical properties that make them suitable for thin film deposition. The material combines the characteristics of both calcium and tin, offering good electrical conductivity and thermal stability. The density typically ranges between 7.3-7.5 g/cm³, depending on the exact composition. Chemically, the target material is stable under normal conditions but may oxidize when exposed to air or moisture. The melting point varies with composition but generally falls between 200-400°C. The material is insoluble in water and most organic solvents, making it suitable for various vacuum deposition environments.
Main Applications
The primary application of Calcium Tin Targets is in the semiconductor industry, where they are used to deposit thin films for electronic devices. These targets are particularly valuable in manufacturing transparent conductive oxides (TCOs) for photovoltaic cells and display technologies. Another significant application is in the production of specialized coatings for optical devices. The calcium-tin combination can create films with specific electrical and optical properties that are difficult to achieve with other materials. Research institutions also use these targets for developing new materials and studying thin film phenomena.
Safety and Storage
Proper handling of Calcium Tin Targets is essential for both safety and material preservation. The material should be stored in a dry, inert atmosphere to prevent oxidation. Moisture exposure can lead to surface degradation and affect sputtering performance. When handling, wear appropriate personal protective equipment including gloves and safety glasses. Cutting or machining the target material should be performed under controlled conditions to minimize dust generation. In case of fire, use dry chemical extinguishers as water may react with the material.
B2B Procurement Guide
When procuring Calcium Tin Targets, buyers should specify several key parameters. Purity requirements typically range from 99.5% to 99.999%, depending on the application. Dimensions and thickness should be matched to the specific sputtering equipment being used. Bonding requirements are another critical consideration - targets can be supplied unbonded, or bonded to various backing plate materials. Lead times for custom compositions or sizes can be significant, so advanced planning is recommended. For reference, standard sizes (2-8 inch diameters) are typically more readily available than custom configurations.
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