SECURITY DEVICE FOR ELECTRONIC CIRCUITS AGAINST UNAUTHORISED ACCESS

摘要

The device includes a cap-like cover which is arranged on a circuit board to at least partially enclose it. The cover is provided with conductive tracks which are connectable to a detection circuit for sensing mechanical damage. The cover is made of a material of high hardness and high brittleness. The material may be pretensioned to achieve a high internal stress. The cover may be made of glass, with conductive tracks applied to a surface of the cover. The cover may be attached to the circuit board by a plastics frame.