Routing´s algorithms and considerations

In routing, which is an important step in designing an IC, related nets should be connected together in the best way according to the design rules. The importance of routing is due to its effect on delay and noise specification of the design. An overview on routing is presented in this paper, which overall flow of the information are base on reference and by comparing and competing in other research papers. In this paper a general routing flow is described by common algorithms used for routing, router and fabrication considerations, and also angled routing. It´s shown routing does not need any complicated mathematics but based on a few algorithms that are common in different subjects which are discussed and explained. On the other hand the precise selection of heuristic estimations acts as a crucial factor in success of routing.