Title:
SEMICONDUCTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/153473
Kind Code:
A1
Abstract:
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.
Inventors:
ENDO MASAMI (JP)
Application Number:
PCT/JP2012/002795
Publication Date:
November 15, 2012
Filing Date:
April 24, 2012
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
ENDO MASAMI (JP)
ENDO MASAMI (JP)
International Classes:
H01L21/82; H03K17/687; H01L29/786; H03K19/177
Foreign References:
| JP2011054951A | 2011-03-17 | |||
| JP2007519228A | 2007-07-12 | |||
| JPS62219667A | 1987-09-26 | |||
| JP2006313999A | 2006-11-16 |
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Claims:
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