DEVICE WITH CAPACITIVE SECURITY SHIELD

摘要

The invention provides a semiconductor device comprising with a capacitive security shield structure which uses a set of randomly distributed dielectric or conducting particles formed within a dielectric layer. A set of electrodes can be configured as at least two sets, wherein a first set is used to measure a capacitance characteristic, and a second set is configured as non-measurement set. The electrode configuration can be altered so that multiple measurements can be obtained.

主权项

1. A semiconductor device comprising a capacitive security shield, the capacitive security shield comprising:
a set of randomly distributed dielectric or conducting particles formed within a dielectric layer; a set of electrodes formed in a layer over which the set of particles are formed; and a controller, wherein the controller is adapted to configure the electrodes as at least two sets, wherein a first set is used to measure a capacitance characteristic, and a second set is configured as a non-measurement set, wherein the controller is further adapted to reconfigure the electrodes into a different first and second set, and the reconfigured first set is used to measure a reconfigured capacitance characteristic.