The Architecture Of Wafer Scale Memories With Giant Magneto-resistance Memory Cells

K. Spears, A.V. Pohm, J. Daughton, R. Sinclair, J. Brown
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引用次数: 2

Abstract

For practical wafer scale memories to be achieved, the memory cells in the structure must have a number of properties. First the memory cells must be non-volatile so that unloading on shut down and loading on start up are not necessary. Secondly, it should be possible to power up the cells in a short time and shut them off quickly so that only a small fraction of the wafer is powered at one time. The cells should have infinite write and read capability with cycle times of at most a few microseconds. It must be possible to make small sub-sections of the wafer with high yield with provisions to discard malfunctioning sub-sections. Simple bus structures must be possible to supply power and carry addresses and signals. The cells should be simple to make with few masking steps and have a high density set by minimum metal pitch for two layers of metal (1). To provide economical packaging, the memory cells should integrate with the semiconductor drive electronics.
超大磁阻存储单元晶圆级存储器的结构
为了实现实际的晶圆级存储器,结构中的存储单元必须具有许多特性。首先,存储单元必须是非易失性的,这样就不需要在关机时卸载和启动时加载。其次,应该有可能在短时间内为电池供电,并迅速关闭它们,以便一次只有一小部分晶圆供电。单元应该具有无限的写入和读取能力,周期时间最多为几微秒。必须有可能使硅片的小分段具有高产量,并规定放弃故障分段。简单的总线结构必须能够提供电源并携带地址和信号。存储单元应该是简单的,用很少的掩蔽步骤,并有一个高密度设置最小的金属间距为两层金属(1)。为了提供经济的包装,存储单元应该集成半导体驱动电子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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