SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a transistor which exhibits an excellent program speed as a memory transistor; and provide a semiconductor device including the above-described transistor.SOLUTION: Provided is a semiconductor device 1A comprising a memory region 10a and a logic region 20a, for example. The memory region 10a includes a transistor (memory transistor) 10 for storing information by accumulating charge in a side wall insulation film 13. A width W1 of the side wall insulation film 13 of the memory transistor 10 included in the memory region 10a is set larger than a width W2 of a side wall insulation film 23 of a transistor (logic transistor) 20 included in the logic region 20a.SELECTED DRAWING: Figure 1