Abstract: In a method for enhancing the data storage capability of ferroelectric or electret memory cell which has been applied to storage of data and attained an imprint condition, suitable voltage pulses are used for evoking a temporary relaxation of the imprint condition into a volatile polarization state that can be discriminated from the imprinted polarization state in a non-destructive readout operation. Sequences of one or more voltage pulses are used to evoke readout signals respectively indicative of a non-volatile and a volatile polarization state of the memory cell, but without altering said polarization states.

Abstract: In a method for enhancing the data storage capability of ferroelectric or electret memory cell which has been applied to storage of data and attained an imprint condition, suitable voltage pulses are used for evoking a temporary relaxation of the imprint condition into a volatile polarization state that can be discriminated from the imprinted polarization state in a non-destructive readout operation. Sequences of one or more voltage pulses are used to evoke readout signals respectively indicative of a non-volatile and a volatile polarization state of the memory cell, but without altering said polarization states.

Abstract: An organic electronic circuit (C) with improved performance, particularly at elevated temperatures, comprises an organic electret or ferroelectric material (2) provided between a first electrode (1a) and a second electrode (1b). A cell with a capacitor-like structure is defined in the organic electret or ferroelectric material (2) and can be accessed electrically directly or indirectly via the electrodes. At least one functional interlayer (3a; 3b) is provided between one of the electrodes (1a; 1b) and the organic electret or ferroelectric material (2). The interlayer material is inorganic, non-conducting and substantially inert relative to the organic electret or ferroelectric material (2) in general. Typically the interlayer (3) is inert relative to the organic electret or ferroelectric material (2) particularly when the latter is a fluorine-containing material. A plurality of circuits (C) is used for forming a matrix-addressable array.