Regularity-oriented analog placement with diffusion sharing and well island generation
Regularity-oriented analog placement with diffusion sharing and well island generation
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DOI：
10.1109/aspdac.2010.5419878
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
S. Nakatake;M. Kawakita;Takao Ito;Masahiro Kojima;Michiko Kojima;Kenji Izumi;Tadayuki Habasaki
中科院分区：
文献类型：
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作者：
S. Nakatake;M. Kawakita;Takao Ito;Masahiro Kojima;Michiko Kojima;Kenji Izumi;Tadayuki Habasaki
本文提出了一种新的布局结构的规则性评估和MOS模拟特定的布局技术，称为扩散共享和阱岛生成，这是基于顺序对发展。拓扑行、拓扑阵列、拓扑重复结构等规则结构都是通过序列对的连续性来刻画的。一个布局目标制定平衡的规则性和面积效率。此外，扩散共享和阱岛也可以被识别为序列对的形成。在实验中，我们应用我们的规则为导向的布局与约束驱动的技术混合到真实的模拟设计，并取得了与手动设计相媲美的结果，即使施加对称性约束。此外，研究结果也显示，此规则性有助于增加适用于扩散分享的行结构，以节省面积与线长。
This paper presents a novel regularity evaluation of placement structure and MOS analog specific layout techniques called diffusion sharing and well island generation, which are developed based on Sequence-Pair. The regular structures such as topological row, array and repetitive structure are characterized by the way of forming subsequences of a sequence-pair. A placement objective is formulated balancing the regularity and the area efficiency. Furthermore, diffusion sharing and well island can be also identified looking into forming of a sequence-pair. In experiments, we applied our regularity-oriented placement mixed with the constrait-driven technique to real analog designs, and attained the results comparable to manual designs even when imposing symmetry constraints. Besides, the results also revealed the regularity serves to increase row-structures applicable to the diffusion-sharing for the area and wire-length saving.