Semiconductor memory having both volatile and non-volatile functionality comprising resistive change material and method of operating
First Claim
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1. A semiconductor memory array comprising:
- a plurality of memory cells arranged in a matrix of rows and columns, wherein at least two of said memory cells each include;
a bipolar device configured to store data when power is applied to said memory cell; and
a nonvolatile memory comprising a bipolar resistive change element configured to store data stored in said bipolar device upon transfer thereto;
wherein said data stored in said bipolar device determines the resistivity of said bipolar resistive change element upon transfer thereto; and
wherein said transfer is performed to said at least two of said memory cells in parallel.
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Abstract
A semiconductor memory cell including a capacitorless transistor having a floating body configured to store data as charge therein when power is applied to the cell, and a non-volatile memory comprising a bipolar resistive change element, and methods of operating.
257 Citations
18 Claims
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1. A semiconductor memory array comprising:
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a plurality of memory cells arranged in a matrix of rows and columns, wherein at least two of said memory cells each include; a bipolar device configured to store data when power is applied to said memory cell; and a nonvolatile memory comprising a bipolar resistive change element configured to store data stored in said bipolar device upon transfer thereto; wherein said data stored in said bipolar device determines the resistivity of said bipolar resistive change element upon transfer thereto; and wherein said transfer is performed to said at least two of said memory cells in parallel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated circuit comprising:
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a plurality of memory cells arranged in a matrix of rows and columns, wherein at least two of said memory cells each include; a bipolar device configured to store data when power is applied to said memory cell; and a nonvolatile memory comprising a bipolar resistive change element configured to store data stored in said bipolar device upon transfer thereto; wherein said data stored in said bipolar device determines the resistivity of said bipolar resistive change element upon transfer thereto; wherein said transfer is performed to said at least two of said memory cells in parallel; and a circuitry to perform said transfer. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification