Semiconductor memory device, method for fabricating the same and electronic system including the same

A semiconductor memory device comprising:

• a first peripheral circuit structure;
• and
• a cell structure stacked on the first peripheral circuit structure and including memory cells,
• wherein the first peripheral circuit structure includes
• a first peripheral circuit board including a first surface facing the cell structure and a second surface opposite to the first surface,
• a first circuit element on the first surface of the first peripheral circuit board, and
• a first capacitor on the second surface of the first peripheral circuit board.

An electronic system comprising:

• a main board;
• a semiconductor memory device on the main board and including a peripheral circuit structure and a cell structure, the cell structure being stacked on the peripheral circuit structure;
• and
• a controller electrically connected to the semiconductor memory device on the main board;
• wherein the peripheral circuit structure includes
• a peripheral circuit board including a first surface facing the cell structure and a second surface opposite to the first surface,
• a first circuit element on the first surface of the peripheral circuit board, and
• a capacitor configured to provide an operating voltage to the first circuit element on the second surface of the peripheral circuit board.