公开(公告)号：US06563729B2

公开(公告)日：2003-05-13

申请号：US10127616

申请日：2002-04-22

申请人： Eric-Roger Brücklmeier ,  Michael Bollu ,  Tobias Schlager

发明人： Eric-Roger Brücklmeier ,  Michael Bollu ,  Tobias Schlager

IPC分类号： G11C1122

CPC分类号： G11C29/50016 ,  G11C11/22 ,  G11C29/50

摘要： 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.

公开(公告)号：US06934854B2

公开(公告)日：2005-08-23

申请号：US10086296

申请日：2002-03-01

申请人： Eric-Roger Brücklmeier ,  Herbert Palm ,  Andreas Kux

发明人： Eric-Roger Brücklmeier ,  Herbert Palm ,  Andreas Kux

IPC分类号： G06K19/073 ,  G07C9/00 ,  G07F7/10 ,  G06F17/00

CPC分类号： G07F7/1008 ,  G06K19/073 ,  G06K19/07372 ,  G06Q20/341 ,  G07C9/00023 ,  G07F7/1083

摘要： The access time for the use of an electronic device, for example a chip, is prolonged after each unauthorized access attempt. The access time is determined by the time for the matching of the turn-on voltages of two floating gate cells. Before an access attempt, the turn-on voltage of one cell is set to a predefined initial value and the turn-on voltage of the other cell is set to a value which is higher in comparison and which is increased after each unauthorized access.

摘要翻译： 在每次未经授权的访问尝试之后，延长使用电子设备（例如芯片）的访问时间。 访问时间由两个浮动栅极单元的导通电压匹配的时间决定。 在访问尝试之前，一个单元的接通电压被设置为预定义的初始值，并且另一个单元的接通电压被设置为比较高的值，并且在每个未经授权的访问之后增加。

公开(公告)号：US06452283B2

公开(公告)日：2002-09-17

申请号：US09789990

申请日：2001-02-20

申请人： Michael Smola ,  Eric-Roger Brücklmeier

发明人： Michael Smola ,  Eric-Roger Brücklmeier

IPC分类号： H01L2348

CPC分类号： H01L23/576 ,  H01L2924/0002 ,  H01L2924/00

摘要： 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).

摘要翻译： 一种半导体芯片，具有在半导体基板的至少一层中制造并且配置在至少一个组中的电路。 半导体芯片具有至少一个导电保护层，该导电保护层布置在至少一个这样的电路组之上并与至少一个电路电连接。 衬底具有至少一个保护传感器，并且保护传感器/保护传感器的检测连接被连接到导电保护层或至少一个导电保护层。 保护传感器/保护传感器的输出连接被连接到至少一个电路，使得如果在保护传感器的输出处存在限定的非易失性电平，则电路不能正常工作。