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US08218348B2 Memory devices having strings of series-coupled memory cells selectively coupled to different bit lines 有权
具有选择性地耦合到不同位线的串联耦合存储器单元串的存储器件

Memory devices having strings of series-coupled memory cells selectively coupled to different bit lines
Abstract:
Memory devices where ends of series-coupled strings of memory cells are selectively coupled to different bit lines may facilitate increased memory densities, reduced fabrication steps and faster read operations when compared to traditional NAND memory array architectures. Programming and erasing of the memory cells can be accomplished in the same manner as a traditional NAND memory array. However, reading of the memory cells may be accomplished using charge sharing techniques similar to read operations in a DRAM device or by using one bit line as a ground node for sensing current flow through the strings. The use of bit lines for virtual grounding is further suitable to other array architectures.
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