In general, automatic layout composition techniques based on pre-designed devices facilitate the production of small IC numbers by prefabricating their basic structures. They also enables a high degree of automatic layout synthesis. However, for their correct electrical behavior it is essential, that potential problems caused by electro-magnetic compatibility (EMC) are fully considered during t...

In layout design problems including blank nesting, the positions and directions of layout elements must be determined so as to minimize the total space. It is difficult and computationally time-consuming to find the optimal solution for such layout problems, because they include a lot of underlying combinational conditions. In this paper, we present an approach for optimal nesting by combining ...

Cellular Manufacturing (CM) has been emerged as a strong approach for improving operations in batch and job shop environments. In cellular manufacturing, Cell formation, static layouts, dynamic layouts are the prime areas for achieving the optimal cellular layout for any problems. In this paper it is decided to review the recent research work in this particular area and to project the effective...

The two-dimensional layout problem is known to be NP-complete, and the current research work is basically in the heuristic way. In this paper, we mainly discuss the methods for solving layout problem about the arti®cial satellite module by virtue of graph theory and group theory. Also, an algorithm of global optimization is presented ®rst time. The method given here can be extended to solve oth...

............................................................................................................................................................ 2 Table of contents ............................................................................................................................................... 3 Introduction ................................................................

This paper studies the computational complexity of the Proper interval colored graph problem (picg), when the input graph is a colored tree. We show that the problem is hard for the class of caterpillar trees. To prove our result we make use of a close relationship between intervalizing problems and graph layout problems. We deene a graph layout problem the Proper colored layout problem (pclp)....

We first present a unged formulation to three problems in VLSI physical design: Layout compaction, Wire balancing and Integrated layout compaction and wire balancing problems. The aim of layout compaction is to achieve minimum chip width. Whereas wire balancing seeks to achieve minimum total wire length, integrated layout compaction and wire balancing seeks to minimize wire length maintaining t...

Purpose – In spite of having a number of general-purpose algorithms for solving plant layout problems, facility planners may still face a challenging task to adjust these algorithms to handle special, but not uncommon, layout problems. The purpose of this study is to propose a new method for addressing the impact of overhead space utilization on a plant layout solution. Design/methodology/appro...