论文部分内容阅读
与电荷耦合器件(CCD)的竞争 CCD结构简单,加工最容易,在所有的半导体读-写存储器件中,它的每位价格最低。正因为这样,CCD器件就成了磁泡存储器最直接的竞争者。磁泡和CCD比较,有三个问题:价格降低的可能性、非易失性和速度。当我们对未来进行规划时,应该考虑到那些有开创性的设计。无论是CCD单元还是磁泡单元(衔接盘或磁泡点阵),它们的占地面积都为每位4W~2(W是单元设计中的最小线宽)。如果光刻能力相同,则它们的密度也可做得差不多相同。然而由于磁泡的器件结构更简单些,因此它对光
Competition with Charged Coupled Devices (CCDs) The CCDs are simple in structure and easiest to machine, and are the cheapest per bit in any semiconductor read-write memory device. Because of this, the CCD device became the most direct competitor of the bubble memory. There are three issues with comparing bubble and CCD: the possibility of price reduction, non-volatility and speed. When we plan for the future, we should consider those groundbreaking designs. Both the CCD unit and the bubble unit (interface plate or bubble lattice), their area is 4W ~ 2 each (W is the minimum line width in the unit design). If the lithography capabilities are the same, then their densities can be made to be about the same. However, the structure of the bubble because the device is more simple, so it is light