Semiconductor device including selector

A semiconductor device comprising:

• a first conductive line and a second conductive line that are spaced apart from each other in a vertical direction;
• a selector pattern interposed between the first conductive line and the second conductive line in the vertical direction and including a first sidewall and a second sidewall facing the first sidewall in a horizontal direction, the selector pattern configured to exhibit different electrical conducting characteristics in response to an applied voltage with respect to a threshold voltage;
• a first electrode layer and a second electrode layer respectively formed over the first sidewall and the second sidewall of the selector pattern;
• a first contact plug having an upper surface in contact with a lower surface of the first electrode layer, the first contact plug electrically connected to the first conductive line and disposed over the first conductive line;
• and
• a second contact plug disposed at one side of the second electrode layer in the horizontal direction and having a sidewall in contact with the second electrode layer, the second contact plug electrically connected to the second conductive line and disposed under the second conductive line.

A semiconductor device, comprising:

• a first conductive line and a second conductive line that are spaced apart from each other in a vertical direction;
• a selector pattern interposed between the first conductive line and the second conductive line in the vertical direction and including a first sidewall and a second sidewall that face each other in a horizontal direction;
• a first electrode layer and a second electrode layer that are respectively formed over the first sidewall and the second sidewall of the selector pattern;
• a memory pattern having an upper surface in contact with a lower surface of the first electrode layer, the memory pattern electrically connected to the first conductive line and disposed over the first conductive line;
• and
• a contact plug disposed at one side of the second electrode layer in the horizontal direction and having a sidewall in contact with the second electrode layer, the contact plug electrically connected to the second conductive line and disposed under the second conductive line.