| 摘要 |
In a semiconductor device comprising a capacitive element, an area of the capacitive element is reduced without impairing performance, and further, without addition of an extra step in a manufacturing process. A first capacitor is formed between an active region of a semiconductor substrate provided through a first capacitive insulating film and a lower electrode comprised of a conductor film in the same layer as a select gate electrode of a select, a second capacitor is formed between the lower electrode, and an upper electrode comprised of a conductor film in the same layer as a memory gate electrode of a memory, provided through the second capacitive insulating film in the same layer as the insulating films of a multi-layer structure, including a charge storage layer, and a stacking-type capacitive element is comprised of the first capacitor and the second capacitor, wherein a planar shape of the lower electrode is a grid-like shape having a plurality of lengths of linear conductor films each having a first width, formed along a first direction with a first interval provided therebetween, and a plurality of lengths of linear conductor films each having a second width, formed along a second direction (the direction intersecting the first direction) with a second interval provided therebetween. |
