Uploaded December 2025 | Updated September 2026, 2 weeks ago

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The process for designing products that use touch controls is a complex one with many decisions to be made, such as what materials will be used in their construction and how the mechanical and electrical requirements will be met. The key to this process is the design of the actual sensors (specifically buttons, sliders, wheels, and touch screens) that form the interface with the user.

This application note will guide touch solutions designers towards a robust implementation of their vision for the user interface. This application note will outline common challenges and provide solutions and guidance.

Topics include:
Self-Capacitance Sensors
• Self-Capacitance Measurement
• Sensor Design
• Touch Cover Effect
• Shielding
Mutual Capacitance Sensors
• Mutual Capacitance Measurement
• Sensor Design
• Touch Cover Effects
• Shielding