Title:
Semiconductor device
Document Type and Number:
Japanese Patent JP6027213
Kind Code:
B2
Abstract:
An object is to provide a semiconductor device with a novel structure in which stored data can be held even when power is not supplied and there is no limit on the number of write operations. The semiconductor device includes a first memory cell including a first transistor and a second transistor, a second memory cell including a third transistor and a fourth transistor, and a driver circuit. The first transistor and the second transistor overlap at least partly with each other. The third transistor and the fourth transistor overlap at least partly with each other. The second memory cell is provided over the first memory cell. The first transistor includes a first semiconductor material. The second transistor, the third transistor, and the fourth transistor include a second semiconductor material.
Inventors:
Kiyoshi Kato
Application Number:
JP2015222688A
Publication Date:
November 16, 2016
Filing Date:
November 13, 2015
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L21/8242; G11C11/405; H01L21/8234; H01L27/00; H01L27/06; H01L27/088; H01L27/108; H01L29/786
Domestic Patent References:
| JP2001053164A | ||||
| JP7211799A | ||||
| JP11251518A | ||||
| JP2010141230A | ||||
| JP2007250862A |
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