Chapter 46 Summary: PCB Routing This chapter explore the two types of routers, the maze router and the X-Y router, but concentrates more on the X-Y router because most designers are already familiar with the older maze routing technology. Maze routers work best with two routing layers, while X-Y routers require more than two routing layers. The author explains his position on autorouters vs. hand routing: Autorouters that are properly matched to the problem and properly operated yield accurate results faster than can ever be achieved with hand routing.
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