摘要:
A method of programming a one-time programmable device is provided. A switching device disposed in a substrate is turned on and a program current is applied to a fuse electrically connected to the switching device, thereby cutting the fuse. The fuse includes a first electrode electrically connected to the switching device, a second electrode spaced apart from the first electrode, and a chalcogenide pattern disposed between the first and second electrodes. Related one-time programmable devices, phase change memory devices and electronic systems are also disclosed.
摘要:
Semiconductor memory devices having strapping contacts are provided, the devices include cell regions and strapping regions between adjacent cell regions in a first direction. Active patterns, extending in the first direction throughout the cell regions and strapping regions, are spaced apart from one another in a second direction intersecting the first direction. First interconnection lines, extending in the first direction throughout the cell regions and strapping regions, are spaced apart from one another in the second direction while overlapping with the active patterns. Second interconnection lines, extending in the second direction, intersect the active patterns and first interconnection lines in the cell regions. The second interconnection lines are spaced apart from one another in the first direction. Memory cells are positioned at intersection portions of the first and second interconnection lines in the cell regions. The active patterns contact the first interconnection lines through strapping contacts in the strapping regions.
摘要:
A method of fabricating a semiconductor memory device having a self-aligned electrode is provided. An interlayer insulating layer having a contact hole is formed on a substrate. A phase change pattern partially filling the contact hole is formed. A bit line which includes a bit extension self-aligned to the phase change pattern and crosses over the interlayer insulating layer is formed. The bit extension may extend in the contact hole on the phase change pattern. The bit extension contacts the phase change pattern.