Abstract
The placement problem has become more complex and challenging due to a wide variety of complicated constraints imposed by modern process technologies. Some of the most challenging constraints and objectives were highlighted during the most recent ACM/IEEE International Symposium on Physical Design (ISPD) contests. In this article, the framework of Eh?Placer and its developed algorithms are elaborated, with the main focus on modern technology constraints and runtime. The technology constraints considered as part of Eh?Placer are fence region, target density, and detailed routability constraints. We present a complete description on how these constraints are considered in different stages of Eh?Placer. The results obtained from the contests indicate that Eh?Placer is able to efficiently handle modern technology constraints and ranks highly among top academic placement tools.
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