Abstract
A novel dataline redundancy suitable for an embedded DRAM macro with wide data bus is presented. This redundancy reduces the area required for spare cells from 6 to 1.6% of the area required for normal cells and improves chip yield from 50 to 80%. In addition, it provides a high-speed data path. An embedded DRAM macro adopting the redundancy achieves 200-MHz operation and provides 51.2-Gbit/s bandwidth. It has been fabricated with 0.25-/spl mu/m technology.
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