A rotation sensor provides a control with an indication of shaft position. The method comprises creating a deep trench in a substrate whose semiconductor material has an orientation plane perpendicular to the surface of the substrate. The C-router provides double patterning color seeding for routing tracks in the electronic design. Such golf balls can have a coefficient of restitution that is optimized for low swing speed players. The signal analysis path comprises transversal half-band filters with successively reduced processing rate arranged in a tree structure, which enable a splitting up into partial signals in eight or more frequency bands with a high clearness of modulation. The biasing member biases the push button outward with respect to the enclosure body.