Patent ID: 8638586
Filing Date: 2014-01-28
Classification: G11C

Abstract:
1. A non-volatile storage device, comprising: a plurality of non-volatile storage elements; one or more control circuits that perform memory operations; a first set of selection circuits, each selection circuit of the first set of selection circuits is in communication with the one or more control circuits and a different group of two or more of the non-volatile storage elements, each of the selection circuits of the first set of selection circuits concurrently connect a respective first non-volatile storage element of respective groups of the non-volatile storage elements to the one or more control circuits for concurrently performing a memory operation on the first non-volatile storage element of each group, the selection circuits independently detect completion of the memory operation for the first non-volatile storage element of each group, the selection circuits commence for each group another memory operation on a second non-volatile storage element for the respective group independently of the detection of completion of the memory operation for the first non-volatile storage elements of the other groups and in response to the independent detection of completion of the memory operation for the first non-volatile storage element of the respective group; multiple sets of local data lines, each group of non-volatile storage elements includes its own set of local data lines; and a set of global data lines, the one or more control circuits are in communication with the global data lines, the first set of selection circuits selectively connect the local data lines to the global data lines, the local data lines are positioned in at least one metal layer below the plurality of non-volatile storage elements, the global data lines are positioned in at least one metal layer above the plurality of non-volatile storage elements.