Strontium (Sr) Sputtering Targets
Strontium is a chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. The metal forms a dark oxide layer when it is exposed to air. Strontium has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally in the minerals celestine, strontianite, and putnisite, and is mined mostly from the first two of these. While natural strontium is stable, the synthetic 90Sr isotope is radioactive and is one of the most dangerous components of nuclear fallout, as strontium is absorbed by the body in a similar manner to calcium. Natural stable strontium, on the other hand, is not hazardous to health.
Material Notes
Strontium Sputtering Targets, Purity is 99.5%; Circular: Diameter <= 14inch, Thickness >= 1mm; Block: Length <= 32inch, Width <= 12inch, Thickness >= 1mm. Due to the highly reactive nature of these materials, packaging in oil is required to reduce the opportunity for oxidation or other reaction.
Applications
• Electronics
• Semiconductor
• Flat panel displays
Features
• Competitive pricing
• High purity
• Grain refined, engineered microstructure
• Semiconductor grade
Manufacturing Process
• Refining
Three-layer electrolytic process
• Melting and casting
Electrical resistance furnace - Semi-continuous casting
• Grain refinement
Thermomechanical treatment
• Cleaning and final packaging - Cleaned for use in vacuum
Protection from environmental contaminants
Protection during shipment
Options
• 99.999% minimum purity
• Semiconductor grade aluminum alloys available
Al/Si,Al/Cu,Al/Cu/Si
• Planar circular targets up to 18'' (457mm) diameter
• Planar tiles up to 48''(1200mm) X 15.75''(400mm) for larger target configurations
• Smaller sizes also available for R&D applications
• Sputtering target bonding service
Data sheet