Channel router
![Figure 1: A channel routing problem. The numbered pins on the top and bottom of the channel must be connected. The nets specified on the left and right of the channel must be brought to that end of the channel](/Images/godic/202501/04/ChannelRouteProblem5931.png")
![Figure 2: A solution to the channel routing problem shown above. Solutions are not unique, and this is just one of the many possible.](/Images/godic/202501/04/ChannelRouteSolution.svg5931.png")
A channel router is a specific variety of router for integrated circuits. Normally using two layers of interconnect, it must connect the specified pins on the top and bottom of the channel. Specified nets must also be brought out to the left and right of the channel, but may be brought out in any order. The height of the channel is not specified - the router computes what height is needed.