As we all know, one of the target's key performance indicators is purity. The purity requirements of the target differ in practical applications.The use of high-purity titanium target material is more expensive and has a smaller application window than typical industrial pure titanium.utilized primarily to suit the needs of a few specialized sectors.What then are the primary uses for high-purity titanium targets?
High-purity titanium targets are mostly used for:
1. Biological components
Since titanium is not magnetic, a strong magnetic field will not cause it to become magnetized. It works well with the human body and doesn't have any negative side effects. It can be utilized to create implants for human bodies.However, given the dissolution of impurities in titanium, the purity of titanium for implants should be as high as is practical. In general, medical titanium materials do not reach the level of high-purity titanium.Biological strapping can be made out of high-purity titanium wire.The catheter-embedded titanium injection needle has likewise attained the high-purity titanium level.
2. Materials for decorations
High-purity titanium maintains its original natural hue even after extended exposure to the atmosphere thanks to its high resistance to atmospheric corrosion.As a result, materials for architectural ornamentation can also be made from high-purity titanium.Additionally, in recent years, titanium has been used to make several upscale accessories and apparel, including bracelets, watches, and eyeglass frames. Titanium is used because it is resistant to corrosion, does not change color, can retain a good sheen for a very long period, and does not irritate human skin when it comes into touch with it.The level of 5N purity for the titanium utilized in some embellishments has been achieved.
3. Material gatherer
Titanium is a particularly reactive metal with chemical characteristics that allows it to interact with a wide variety of substances at high temperatures.Strong active gas adsorption occurs on the surface of high-purity titanium, including O2, N2, CO, CO2, and water vapor over 650 °C. On the pump wall, the Ti film that evaporated can create a surface with a high adsorption capacity. Due to this characteristic, Ti is frequently utilized as a getter in systems for pumping extremely high vacuums.The ultimate operating pressure of the sputtering ion pump can be as low as 10-9Pa when utilized in sublimation pumps, sputtering ion pumps, etc.
4. Informational media in electronic form
The usage of high-purity titanium in sputtering targets, integrated circuits, DRAMs, and flat-panel displays has expanded recently as a result of the high-tech industries' rapid expansion in areas like semiconductor technology and information technology. Move forward.As diffusion barriers and wiring materials for control electrodes in the semiconductor VLSI industry, titanium silicon compounds, titanium nitrogen compounds, tungsten titanium compounds, etc.These materials are produced using the sputtering technique, which calls for a titanium target with a high degree of purity, particularly for radioactive and alkali metal elements.
Recently, high-purity titanium that matches the purity of the titanium target used in the sputtering process has also started to be used.Titanium purity currently needs to be at least 4N5 (99.995%) or 5N (99.999%) for 4 Mbit VLSI, while it needs to be at least 6N (99.9999%) for 16 Mbit third-generation VLSI.
