Fish & Richardson P.C.
Semiconductor device
In a semiconductor device which includes a bit line, m (m is a natural number of 3 or more) word lines, a source line, m signal lines, first to m-th memory cells, and a driver circuit, the memory cell includes a first transistor and a second transistor for storing electrical charge accumulated in a capacitor, and the second transistor includes a channel formed in an oxide semiconductor layer. In the semiconductor device, the driver circuit generates a signal to be output to a (j−1)th (j is a natural number of 3 or more) signal line with the use of a signal to be output to a j-th signal line.
Semiconductor Energy Laboratory Co., Ltd.
G H G G H G H
G11C H01L G11C G11C H01L G11C H01L
inventional inventional inventional inventional inventional inventional inventional
Takanori Hiroki Shuhei Kiyoshi
Matsuzaki Inoue Nagatsuka Kato