Semiconductor device and method for fabricating the same

A semiconductor device comprising:

• a plurality of word lines extending in a first direction;
• a plurality of bit lines spaced from the plurality of word lines and extending in a second direction that is different from the first direction;
• a plurality of memory cells disposed at intersections of the plurality of word lines and the plurality of bit lines, respectively, each memory cell being coupled between and electrically connected to a pair of a corresponding bit line and a corresponding word line that intersect at the memory cell and structured to include a variable resistance element configured to store data by exhibiting different resistance values and a selection element connected to the variable resistance element in series to selectively connect or disconnect the variable resistance element to the pair of the corresponding bit line and word line;
• and
• a boosting line connected to a portion of the selection element that is between one end of the selection element, which is connected to one of the word line and the bit line, and another end of the selection element, which is connected to the variable resistance element, wherein the boosting line supplies a boosting voltage to the selection element to reduce a voltage applied to the memory cell via the pair of the corresponding bit line and word line for operating the memory cell.