Camera driving module, image capturing unit and smartphone

A method of manufacturing camera driving module, comprising:

• disposing a spring on a lens unit, wherein the lens unit comprises a protruding structure, and the protruding structure is located at a periphery of the lens unit;
• fixing a magnetic element to a casing, wherein the magnetic element is located at an inside of the casing, and the casing comprises a through hole and a broadwise notch structure;
• fixing a coil to the lens unit, wherein the coil is located at an outside of the casing;
• disposing the lens unit on either the casing or a base;
• disposing the casing on the base, wherein the base comprises an opening, the through hole of the casing corresponds to the opening of the base, the broadwise notch structure of the casing is located nearby a periphery of the through hole, the protruding structure of the lens unit corresponds to the broadwise notch structure, the lens unit is movable relative to the casing, and the coil faces toward the magnetic element;
• and
• disposing a damper agent between the broadwise notch structure of the casing and the protruding structure of the lens unit, wherein the damper agent is configured to reduce movement of the lens unit, and the damper agent is cured via UV irradiation.