ShapeRectangular (diving board) cantilevers are the most widely used as the approximate values of their spring constants and resonant frequencies can be easily calculated from their dimensions. Generally, any rectangular cantilever can be produced with any required type of the probe tip with a few exceptions.
SEM image of Silicon cantilever
Schematic drawing of the probe chip.
ApplicationRectangular shape is the best in terms of Q-factor, regularity of the resonant curve, and ease of use. The simplicity of the geometry allows making some approximate calculations of some important parameters of the cantilever like torsional and flexural spring constants. These probes are good for both contact and oscillatory AFM modes
Scans and application notes