Chalcogenide material and electronic device including the same
A chalcogenide material and an electronic device are provided. The chalcogenide material may include 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic and 40-50 at % of selenium. The electronic device may include a semiconductor memory device, the semiconductor memory device including a first memory cell that includes a first switching element. The first switching element may include a chalcogenide material including 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic, and 40-50 at % of selenium.
1. A chalcogenide material comprising 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic, and 40-50 at % of selenium.
2. The chalcogenide material of claim 1 , wherein content of silicon is 0.5-4 at %.
3. The chalcogenide material of claim 1 , wherein content of germanium is 17-20 at %.
4. The chalcogenide material of claim 1 , wherein content of arsenic is 31-34 at %.
5. The chalcogenide material of claim 1 , wherein content of selenium is 43-48 at %.
6. An electronic device comprising:
a switching element including a chalcogenide material, the chalcogenide material including 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic, and 40-50 at % of selenium;
a first electrode electrically coupled to the switching element; and
a second electrode electrically coupled to the switching element.
7. The electronic device of claim 6 , wherein content of silicon is 0.5-4 at %.
8. The electronic device of claim 6 , wherein content of germanium is 17-20 at %.
9. The electronic device of claim 6 , wherein content of arsenic is 31-34 at %.
10. The electronic device of claim 6 , wherein content of selenium is 43-48 at %.
11. An electronic device comprising a semiconductor memory device, the semiconductor memory device including a first memory cell that includes a first switching element,
wherein the first switching element includes a chalcogenide material including 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic, and 40-50 at % of selenium.
12. The electronic device of claim 11 , wherein the semiconductor memory device further includes:
a second memory cell including a second switching element, the second switching element having a chalcogenide material including 0.1-5 atomic percent (at %) of silicon, 15-22 at % of germanium, 30-35 at % of arsenic, and 40-50 at % of selenium, and
wherein the first memory cell and the second memory cell further include a first memory layer and a second memory layer, respectively, each of the first and second memory layers switching between different resistance states according to a voltage or a current applied thereto.
13. The electronic device of claim 12 , wherein the first switching element and the second switching element control access to the first memory layer and the second memory layer, respectively.
14. The electronic device of claim 11 , wherein the semiconductor memory device includes a plurality of memory cells including the first memory cell,
wherein the semiconductor memory device further includes:
a plurality of first lines disposed between a substrate and the plurality of memory cells, each of the plurality of first lines extending in a first direction; and
a plurality of second lines disposed over the plurality of memory cells, each of the plurality of second lines extending in a second direction that crosses the first direction, and
wherein the plurality of memory cells are disposed at respective intersections of the first lines and the second lines.
15. The electronic device of claim 11 , wherein the semiconductor memory device further includes a capping layer disposed over at least side surfaces of the first memory cell.
16. The electronic device of claim 11 , content of silicon is 0.5-4 at %.
17. The electronic device of claim 11 , wherein content of germanium is 17-20 at %.
18. The electronic device of claim 11 , wherein content of arsenic is 31-34 at %.
19. The electronic device of claim 11 , wherein content of selenium is 43-48 at %.
20. The electronic device according to claim 11 , further comprising a microprocessor which includes:
a control unit configured to receive a signal including a command from an outside of the microprocessor, and performs extracting, decoding of the command, or controlling input or output of a signal of the microprocessor;
an operation unit configured to perform an operation based on a result that the control unit decodes the command; and
a memory unit configured to store data for performing the operation, data corresponding to a result of performing the operation, or an address of data for which the operation is performed,
wherein the semiconductor memory is part of the memory unit in the microprocessor.