Barium Strontium Titanate Sputtering Targets

Barium Strontium Titanate Sputtering Targets

Barium strontium titanate (BST) sputtering targets are used to deposit thin films of barium strontium titanate (BaₓSr₁₋ₓTiO₃) on substrates. BST is a perovskite-type oxide with tunable dielectric properties, and it has a range of applications in various advanced technologies.

High-Dielectric Constant Capacitors:

Tunable Capacitors: BST thin films are used in tunable capacitors where the dielectric constant can be adjusted by applying an electric field. This property is valuable for radio frequency (RF) and microwave applications, including mobile phones and satellite communications.

Ferroelectric and Non-Volatile Memory Devices:

FeRAM (Ferroelectric RAM): BST thin films are utilized in FeRAM, a type of non-volatile memory that offers fast write speeds and low power consumption. The ferroelectric properties of BST are crucial for this application.

Microwave and RF Components:

Frequency-Agile Devices: BST’s tunable dielectric constant is useful for frequency-agile devices, including tunable filters and phase shifters in RF and microwave circuits.

Optoelectronics:

Optical Coatings: BST thin films can be used in optical coatings where their dielectric properties contribute to the performance of optical filters and mirrors.

Sensors and Actuators:

Pressure and Strain Sensors: BST’s piezoelectric properties make it suitable for sensors and actuators that require high sensitivity and responsiveness to mechanical stress.

Energy Storage and Conversion:

Capacitors in Energy Systems: BST thin films can be employed in capacitors for energy storage systems, including those used in power electronics and energy management systems.

Dielectric Resonators:

Resonator Devices: BST’s high dielectric constant and tunability make it suitable for use in dielectric resonators, which are components in various high-frequency applications.

MEMS (Microelectromechanical Systems):

MEMS Devices: BST thin films are used in MEMS devices where their dielectric and piezoelectric properties can enhance device performance in applications like sensors and actuators.

Integrated Circuits:

On-Chip Capacitors: BST films are used in on-chip capacitors in integrated circuits to provide high capacitance in a small footprint.

BST thin films are valued for their tunable dielectric properties, which can be adjusted by varying the ratio of barium to strontium, and their high dielectric constant, which contributes to their versatility in these applications.