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US 7,221,599 B1Granted
Polymer memory cell operation
AssigneeSpansion LLC
InventorsDavid Gaun, Juri H Krieger, Stuart Spitzer
Life of this patent
Estimating the term…
Abstract
Systems and methodologies are provided for activating a polymer memory cell(s) after production by subjecting the polymer memory cell to an electrical field, for an initialization thereof. Such initialization can facilitate the distribution and mobility of metal ions (or charged metallic molecules) within an active layer of the polymer memory cell. The memory cell can include various layers of alternating passive and active media, which are sandwiched between conducting electrode layers.
Claims16
A method of programming information in a polymer memory cell comprising:
- initializing the polymer memory cell, comprising:
- subjecting the polymer memory cell to a positive or negative electric field to provide a supply of ions and facilitate mobility of the ions within an active layer thereof, the polymer memory cell comprising the active layer and a passive layer situated between electrodes,
- setting one or more predetermined threshold values to facilitate programming, and
- removing the electric field when charged carriers exist in the active layer and the one or more predetermined threshold values are set;
- applying an electric field pulse that exceeds a predetermined threshold value to the polymer memory cell;
- and
- controlling at least one of an impedance of the polymer memory cell and current flowing through the polymer memory cell, to program the polymer memory cell.
4 more elements
Dependencies are inferred from the claim text.