Abstract:
An IC with memory cells arranged in groups is described. The memory cells, for example, are ferroelectric memory cells. The IC includes a variable voltage generator (VVG) for generating an output voltage having a different voltage level depending on a location of an addressed memory cell within the memory group is provided. By providing different voltage levels for reads and/or writes, signal loss caused by capacitances which is dependent on the location of the memory cell within the group can be avoided. This improves read and/or write operations in series memory architectures.
Abstract:
The invention relates to an MRAM arrangement, comprising a selection transistor (T), connected to several MTJ memory cells (1) and with an increased channel width.
Abstract:
The present invention provides a test mode section for facilitating a worst case product test sequence for signal margin to ensure full product functionality over the entire component lifetime taking all aging effects into account. A semiconductor memory test mode configuration includes a first capacitor for storing digital data. The first capacitor connects a cell plate line to a first bit line through a first select transistor. The first select transistor is activated through a connection to a word line. A second capacitor for storing digital data connects the cell plate line to a second bit line through a second select transistor. The second select transistor is also activated through a connection to the word line. A sense amplifier is connected to the first and second bit lines for measuring a differential read signal on the first and second bit lines. A constant current mover, for example a constant current sink or source, is connected to the first bit line through a third transistor for changing the amount of charge on the first bit line when the third transistor is turned on to reduce the differential read signal.
Abstract:
Disclosed is a method for producing semiconductor elements comprising a metal layer (10) arranged on a semiconductor substrate . The inventive method consists of the following steps: a silicon layer (30) is deposited on a metal layer (10); an etch mask is applied in order to structure the silicon layer (30); the silicon layer is selectively etched (30) using said etch mask (25); and the metal layer (10) is structured in an etching process using a selectively etched silicon layer (30) as a hard mask.
Abstract:
The invention relates to an MRAM arrangement in which the selection transistors (5) and the MTJ layer sequences (4) lie parallel to each other in a cell. A considerable space saving can thus be achieved.
Abstract:
In verschiedenen Ausführungsbeispielen wird ein Schreibschaltkreis zum Schreiben in eine Mehrzahl von Speicherzellen eines nichtflüchtigen Datenspeichers bereitgestellt. Der Schreibschaltkreis kann einen Pufferspeicher, der eingerichtet ist, einen Datenwert zwischenzuspeichern vor einem Speichern in der Mehrzahl nichtflüchtiger Speicherzellen des nichtflüchtigen Datenspeichers, eine erste Schreibleitung, mittels welcher der Pufferspeicher mit einer ersten Speicherzelle der Mehrzahl von Speicherzellen verbindbar ist, eine zweite Schreibleitung, welche von der ersten Schreibleitung verschieden ist und mittels welcher der Pufferspeicher mit einer zweiten Speicherzelle der Mehrzahl von Speicherzellen verbindbar ist, wobei der Pufferspeicher mittels der ersten Schreibleitung mit der ersten Speicherzelle und gleichzeitig mittels der zweiten Schreibleitung mit der zweiten Speicherzelle verbunden oder verbindbar ist zum gleichzeitigen Schreiben des im Pufferspeicher gespeicherten Datenwerts in die erste Speicherzelle und eines vom Datenwert definiert abhängigen zweiten Datenwerts in die zweite Speicherzelle.
Abstract:
The component has an access switch (46) connected with a connection (42) of a resistance memory unit (40) and with a node (36) to insulate the connection from the node in an idle state of a memory cell (30). The cell has a circuit breaker (48) connected with the unit to reduce voltage produced by electromagnetic disturbance and acting on the unit in the idle state of the cell, and enable reading and writing of the memory statuses of the unit in an access state of the cell.