| 摘要 |
A semiconductor storage device floats the gate of a conventional transistor between two capacitors to store a logic state which can be utilized to store the condition of a circuit such as a latching type circuit such as a flip-flop or register prior to a power down operation to save power. The gate and first terminals of the two capacitors preferably share the same conductive line such as a polysilicon segment. A second transistor and a second set of capacitors store the complementary state of the logic state so that complementary signals are provided for detecting the stored logic state. After the time for power down has ended, the state of the semiconductor storage device made up of the two transistors and four capacitors is sensed, and the detected logic state is loaded back into the latching type circuit.
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