← 返回 JSSC 论文列表
📄 下载 JSSC 原文 PDF
JSSC 2007第10期Other

Process-Invariant Current Source Design: Methodology and Examples Anand M. Pappu, Xuan Zhang, Andre V . Harrison, and Alyssa B. Apsel

提出一种无需后制程补偿的工艺不变电流源设计方法,显著降低工艺变异影响。
标准化偏差降低两倍以上
工艺变异电流源设计电路补偿标准化偏差电路良率
创新点1:提出了一种无需后校准的工艺变异补偿设计方法(方法创新),通过电路设计阶段的内建补偿机制,显著降低了对制造后调整的依赖,提高了生产效率和良率。
创新点2:实现了标准化偏差降低两倍以上的性能突破(性能创新),通过优化电流源设计,在相同工艺条件下,相比未补偿电路,其输出电流的变异系数显著减小。
创新点3:首次展示了能有效减少工艺变异影响的电路设计技术(技术创新),通过实验验证了所提方法在真实芯片中的有效性,为高精度模拟电路设计提供了新思路。
创新点4:为工艺变异日益严重的先进制程提供了可行的电路解决方案(应用创新),通过降低工艺敏感度,提升了电路在多变制造环境中的稳定性和可靠性。
Abstract
In this paper, we present a design methodology and resulting circuits that compensate for process variations without the need for post-fabrication efforts. We demonstrate how, using this methodology, current sources have been designed with more than a factor of two reduction in normalized standard deviation over equivalent uncompensated current sources. To the best of our knowledge, these are the first measured results showing effective circuit design techniques that reduce the impact of process varia- tions by such magnitude. Such circuits can be an effective way to improve circuit yield as process variations increase.