Non-volatile semiconductor memory device

摘要

A non-volatile semiconductor memory device enabling reading at high speed has a memory cell array including a plurality of memory cells arranged in a column direction and a row direction, each of the memory cells having first and second non-volatile memory elements that are controlled by one word gate and first and second control gates. One of the first and second non-volatile memory elements stores data, but the other does not function as an element which stores data.