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Positioning the wafer stage using capacitive sensors

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range. Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Positioning the wafer stage using capacitive sensors

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range. Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Application challenge

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Measurement method and system

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Manufacturer source

The problem

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

The method

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Frequently asked questions

Answers to the most common questions about our products and services

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

Capacitive displacement sensors are used for fine positioning tasks in the wafer stage. These sensors measure the position of the stage at various points, which is particularly useful for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. Furthermore, the sensors offers extremely high long-term stability. The non-contact sensors are designed for the vacuum range and can also be used in the UHV range.

The sensors measure stage position at several locations. These position readings support fine stage adjustment and alignment.

The source identifies nanometer-range resolution, long-term stability and resistance to electromagnetic interference. These are separate properties, not one combined absolute-accuracy specification.

The application describes vacuum-designed sensors that can also be used in UHV. Preserve selection of the appropriate sensor-head version and installation components.

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