Data holding device and logic operation circuit using the same
AssigneeRohm Co., Ltd.
InventorsYoshikazu Fujimori, Hiromitsu Kimura, Toshiyuki Kanaya, Daisuke Notsu
Life of this patent
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Abstract
A data holding device includes a loop structure unit configured to hold data using a plurality of logic gates connected in a loop shape, a nonvolatile storage unit including a plurality of ferroelectric elements, the nonvolatile storage unit configured to store the data held in the loop structure unit in a nonvolatile manner using hysteresis characteristics of the ferroelectric elements, and a circuit separation unit configured to electrically separate the loop structure unit and the nonvolatile storage unit. The ferroelectric elements of the nonvolatile storage unit are surrounded by a dummy element smaller in width than the ferroelectric elements.
Claims17
A data holding device, comprising:
- a loop structure unit configured to hold data using a plurality of logic gates connected in a loop shape;
- and
- a nonvolatile storage unit including a plurality of ferroelectric elements, and configured to store the data held in the loop structure unit in a nonvolatile manner using hysteresis characteristics of the ferroelectric elements,
- wherein the ferroelectric elements included the nonvolatile storage unit are surrounded by a dummy element, and a width of the dummy elements is smaller than a width of the ferroelectric elements.
A data holding device, comprising:
- a loop structure unit configured to hold data using a plurality of logic gates connected in a loop shape;
- and
- a nonvolatile storage unit including a plurality of ferroelectric elements, and configured to store the data held in the loop structure unit in a nonvolatile manner using hysteresis characteristics of the ferroelectric elements,
- wherein the ferroelectric elements included the nonvolatile storage unit are surrounded by a dummy element that is formed into a closed circular shape.
Dependencies are inferred from the claim text.