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    • 25. 发明公开
    • A DATA STORAGE DEVICE
    • 数据存储设备
    • EP1891583A1
    • 2008-02-27
    • EP06747668.9
    • 2006-06-08
    • Thin Film Electronics ASA
    • BRÖMS, PerKARLSSON, ChristerLEISTAD, Geirr, I.GUDESEN, Hans GudeHAMBERG. PerBJÖRKLID, StaffanCARLSSON, JohanGUSTAFSSON, Göran
    • G06K19/067G06K1/12G06K7/06G06K19/06G06K7/08
    • G06K7/0021B82Y10/00G11B9/02G11B9/1454G11C11/22G11C11/5664G11C13/0009G11C13/0014G11C13/0016
    • In a non-volatile electric memory system a memory unit and a read/write unit are provided as physically separate units. The memory unit is based on a memory material that can be set to at least two distinct physical states by applying an electric field across the memory material. Electrode means and/or contact means are either provided in the memory unit or in the read/write unit and contact means are at least always provided in the read/write unit. Electrodes and contacts are provided in a geometrical arrangement, which defines geometrically one or more memory cells in the memory layer. Contact means in the read/write unit are provided connectable to driving, sensing and control means located in the read/write unit or in an external device connected with the latter. Establishing a physical contact between the memory unit and the read/write unit closes an electrical circuit over the addressed memory cell such that read, write or erase operations can be effected. The memory material of the memory unit can be a ferroelectric or electret material that can be polarized into two discernible polarization states, or it can be a material with a resistive impedance characteristic such that a memory cell of the material can be set to a specific stable resistance value by the application of an electric field.
    • 在非易失性电存储器系统中,存储器单元和读/写单元被设置为物理上分离的单元。 存储器单元基于存储器材料,该存储器材料可以通过在存储器材料上施加电场而被设置为至少两个不同的物理状态。 电极装置和/或接触装置或者设置在存储单元中或者设置在读/写单元中,并且接触装置至少总是设置在读/写单元中。 电极和触点以几何布置提供,其在存储层中几何限定一个或多个存储单元。 读/写单元中的接触装置被提供为可连接到位于读/写单元中或与其连接的外部装置中的驱动,感测和控制装置。 在存储器单元和读取/写入单元之间建立物理接触关闭所寻址的存储器单元上的电路,使得可以实现读取,写入或擦除操作。 存储器单元的存储材料可以是铁电或驻极体材料,其可以被极化成两个可辨别的极化状态,或者它可以是具有电阻阻抗特性的材料,使得材料的存储单元可以被设置为特定的稳定 通过施加电场的电阻值。
    • 29. 发明授权
    • METHODS FOR STORING DATA IN NON-VOLATILE MEMORIES
    • 方法在非易失性存储器中存储数据
    • EP1497730B1
    • 2006-06-28
    • EP03723535.5
    • 2003-04-10
    • Thin Film Electronics ASA
    • TORJUSSEN, Lars, SundellKARLSSON, Christer
    • G06F11/16G06F12/16
    • G06F11/08G11C11/22G11C29/74
    • In methods for storing data in a non-volatile ferroelectric random access memory wherein destructive readout operations are followed by rewrite operations, identical copies of the data are stored in different memory locations that do not have any common word lines or alternative neither common word lines nor common bit lines. A first word line or a segment of a first word line is read in its entirety, said word line or said segment comprising at least a first copy of the identical copies of data. The data thus read are rewritten to the memory location and in addition transferred from the memory location in question to an appropriate cache location, whereafter subsequent memory locations either in the form of word lines or segments thereof are read, and data rewritten to the cache location. The operation is repeated until all identical copies of the data have been transferred to the cache storage. Subsequently bit errors are detected by comparing the identical copies in a memory control logic circuit, which also may be used for caching readout data copies or alternatively be connected with a separate cache memory. Corrected data are written back to the appropriate memory locations holding bit errors when the latter have been detected.
    • 30. 发明公开
    • METHODS FOR STORING DATA IN NON-VOLATILE MEMORIES
    • 方法在非易失性存储器中存储数据
    • EP1497730A1
    • 2005-01-19
    • EP03723535.5
    • 2003-04-10
    • Thin Film Electronics ASA
    • TORJUSSEN, Lars, SundellKARLSSON, Christer
    • G06F11/16G06F12/16
    • G06F11/08G11C11/22G11C29/74
    • In methods for storing data in a non-volatile ferroelectric random access memory wherein destructive readout operations are followed by rewrite operations, identical copies of the data are stored in different memory locations that do not have any common word lines or alternative neither common word lines nor common bit lines. A first word line or a segment of a first word line is read in its entirety, said word line or said segment comprising at least a first copy of the identical copies of data. The data thus read are rewritten to the memory location and in addition transferred from the memory location in question to an appropriate cache location, whereafter subsequent memory locations either in the form of word lines or segments thereof are read, and data rewritten to the cache location. The operation is repeated until all identical copies of the data have been transferred to the cache storage. Subsequently bit errors are detected by comparing the identical copies in a memory control logic circuit, which also may be used for caching readout data copies or alternatively be connected with a separate cache memory. Corrected data are written back to the appropriate memory locations holding bit errors when the latter have been detected.