| 摘要 |
A semiconductor device that has a simple peripheral circuit configuration, is unlikely to deteriorate due to repetitive data writing operations, and is used as a nonvolatile switch. Even when supply of a power supply voltage is stopped, data on a conduction state is held in a data retention portion connected to a thin film transistor including an oxide semiconductor layer having a channel formation region. The data retention portion is connected to a gate of a field-effect transistor in a current amplifier circuit (in which the field-effect transistor and a bipolar transistor are connected as a Darlington pair), and thus the conduction state is controlled without leaking charge in the data retention portion.
|
