| 摘要 |
It is an object of the present invention to provide a volatile semiconductor device into which data can be additionally written and which is easy to manufacture, and a method for manufacturing the same. It is a feature of the present invention that a semiconductor device includes an element formation layer including a first transistor and a second transistor which are provided over a substrate; a memory element provided over the element formation layer; and a sensor portion provided above the memory element, wherein the memory element has a layered structure including a first conductive layer, and an organic compound layer, and a second conductive layer, the first conductive layer is electrically connected to the first transistor, and the sensor portion is electrically connected to the second transistor.
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