Infineon Technologies Ag

Eric-Roger Br&uuml;cklmeier

Michael Smola

Michael Bollu

Tobias Schlager

A configuration is described for evaluating a signal that is read from a ferroelectric storage capacitor, in which, in addition to positive and negative polarization states, a weak polarization state is evaluated. Using the configuration, a data storage characteristic of the memory cells can be monitored, and a manipulation attempt can be detected.

Configuration for evaluating a signal which is read from a ferroelectric storage capacitor

A semiconductor chip having circuits which are produced in at least one layer of a semiconductor substrate and are arranged in at least one group. The semiconductor chip has at least one conductive protective layer which is arranged above at least one such circuit group and is electrically connected to at least one of the circuits. The substrate has at least one protective sensor, and the detection connection(s) of the protective sensor/protective sensors is/are connected to the conductive protective layer or to at least one of the conductive protective layers. Output connections of the protective sensor/protective sensors are connected to at least one of the circuits such that the circuit(s) cannot operate properly if there is a defined, nonvolatile level at the output of the protective sensor(s).

Growing community of inventors

München, Germany

Eric-Roger Brücklmeier

Growing community of inventors

München, Germany

Eric-Roger Br&uuml;cklmeier

Eric-Roger Brücklmeier