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Our proposed method focuses on capacitor leakage reduction, which must be considered in a capacitor driven system but has not been considered to date.
The proposed architecture reduces the voltage stress and the size of the storage capacitor, enabling the use of a film capacitor instead of an electrolytic capacitor.
Furthermore, a new capacitor lifetime monitoring technique is proposed, which employs this signal for calculating equivalent series resistance of the capacitor.
At high drain voltages, large hysteresis occurs, indicating the influence of drain voltage in the charge balance with the ferroelectric capacitor.
This facilitates the use of a film capacitor, which has a much longer life compared with an electrolytic capacitor.
Also, a VPP capacitor model is proposed for the first time to design the VPP capacitor.
Besides, to add one bit, the dummy capacitor is reused which is realized by C–2C structure instead of the unit capacitor C. Compared to the conventional architecture, the proposed capacitor switching method achieves 99.6 % energy saving and 87.21 % capacitor area reduction, respectively.
Proceedings ArticleDOI
Barbaros Kirisken, H. Fatih Ugurdag 
17 Apr 2014
22 Citations
Results show that the optimized capacitor is not the cheapest, most expensive, or most reliable one; optimal capacitor is a modest Chinese “CAP.

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