Inertial Sensors Made Easy with X-FAB
X-FAB is the first foundry to offer inertial sensor COT-technology for consumer, automotive and industrial accelerometer and gyroscope applications. In conjunction with qualified design partners through our X-CHAIN network, X-FAB enables easy access to the rapidly growing inertial sensor market. The offering includes a portfolio of different accelerometer IP blocks covering multiple G-ranges.
Accelerometer - Block Diagram
Accelerometer / Gyroscope Applications
Accelerometers and gyroscopes are used for various safety features in modern vehicles. From crash detection for airbag release to electronic stability control systems, allowing the car to aid the driver during evasive manoeuvres at speed. Gyroscopes can also be used with navigation systems to provide fine location information and help when there is no GPS signal, e.g. in tunnels.
Mobile devices have accelerometers and gyroscopes used for screen orientation detection and enhanced navigation. Computer game consoles are using handsets with accelerometers and gyroscopes to enhance game play.
As well as supporting customer specific designs, X-FAB offers accelerometer and gyroscope standard processes with design rules and process specifications to suit your application. Design support is available to meet your individual requirements.
Accelerometer / Gyroscope Key Facts
- SOI wafer based technology
- Capacitive sensor elements formed by anisotropic and isotropic plasma etching
- Wafer level packaging by wafer bonding
- Process and design rule specification available
X-FAB offers a wide selection of primitive devices which can be used for amplifiers. Beside high ohmic MOS transistors other good matching devices are available for designing transimpedance, operation and other amplifiers. The selection of primitive devices is completed by accurate standard models. X-FAB’s technology libraries contain a selection of different pre-designed operational amplifiers.
Analog-to-Digital Converter (ADC)
Depending on requirements Analog Digital Converters can be designed by using the standard core or additional modules for reduced noise, trimming devices or memory. The use of junction isolated devices makes the ADC design robust versus substrate noise. Zener zaps and fuses are available for trimming of parameters like offset during wafer probing or final test. Several robust ADCs (SAR until 10Bit) can be selected from X-FABs analog standard cell library.
Different digital libraries optimized for speed, low power, low noise and low threshold are available for all of X-FAB's process technologies allowing optimized designs. For low noise/low leakage applications special junction isolated digital libraries can be used. To store firmware for controller or other data a portfolio of non-volatile memories can be used. Unique to X-FAB is the possibility to use EEPROM and FLASH on the same chip. Hard- and software co-design allows fast, reliable and flexible creation of memory cells.