Memory storage apparatus and forming method of resistive memory device thereof
AssigneeWinbond Electronics Corp.
InventorsPing-Kun Wang, Ming-Che Lin, Chien-Min Wu, He-Hsuan Chao, Chih-Cheng Fu, Shao-Ching Liao
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Abstract
A memory storage apparatus and a forming method of a resistive memory device thereof are provided. A test forming voltage is applied to a redundant resistive memory device and a corresponding test current is read. A forming voltage applied to a main memory cell block is determined according to the test forming voltage, the test current, a forming current-voltage characteristic data and a target forming current.
Claims13
A memory storage apparatus, comprising:
- a memory cell array, comprising:
- a main memory cell block, comprising a plurality of resistive memory devices arranged in an array;
- and
- a redundant memory cell block, comprising a plurality of redundant resistive memory devices arranged in an array;
- and
- a memory control circuit, coupled to the memory cell array, applying a test forming voltage to at least one redundant resistive memory device, reading a corresponding test current, and determining a forming voltage applied to the main memory cell block according to the test forming voltage, the test current, a forming current-voltage characteristic data and a target forming current.
A forming method of a resistive memory device of a memory storage apparatus, the memory storage apparatus comprising a memory array, the memory cell array comprising a main memory cell block and a redundant memory cell block, the forming method of the resistive memory device comprising:
- applying a test forming voltage to at least one redundant resistive memory device and reading a corresponding test current;
- determining a forming voltage applied to the main memory cell block according to the test forming voltage, the test current, a forming current-voltage characteristic data and a target forming current;
- and
- applying the forming voltage to the main memory cell block.
Dependencies are inferred from the claim text.