| 摘要 |
The present invention relates to memory repairing device and method, and a system for inspecting and repairing a memory by using the device and method. According to an embodiment of the present invention, the memory repairing apparatus includes a memory classifying unit, a repairing method determining unit, and a memory matching unit. The memory classifying unit classifies multiple memories into a good memory which can be repaired by using a spare cell array equipped in a corresponding memory or having no defect, an inter-repairable memory which can be repaired by using a spare cell array arranged in another memory, and a defective memory which cannot be repaired. The repairing method determining unit determines a repairing method which can be applied to one of the memories, which has a defect. The memory matching unit matches one good memory and one inter-repairable memory based on a first repairing method, and matches another good memory and another inter-repairable memory remained after the previous matching operation based on a second repairing method different from the first repairing method. |
