Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Junichi Katou

Atsuo Nanahara

Kazuyo Nishikawa

Toshikazu Kawashima

Hiroyasu Nagai

Makoto Arita

Asako Miyoshi

Shuuhei Noichi

A semiconductor memory solves performance degradation of a memory device caused by performance of memory functions different depending on a position of a memory cell array. In the memory cell array including memory cells in each of which a memory element is electrically connected to one of a source and a drain of a cell transistor, the cell transistor includes at least two types with different current driving capability according to a position in the memory cell array.

Semiconductor storage device

A memory includes a storage element which stores the number of times of application of a rewrite voltage pulse into a memory array, and a required-time output unit which outputs data representing a required time for a rewrite operation based on the number of times of application stored in the storage element.

Memory unit outputting a required time for a rewrite and method for controlling CPU

Growing community of inventors

Kyoto, Japan

Junichi Katou