 Antenna errors can be cured by adding a small antenna diode to safely discharge the node or splitting the antenna by routing up to another metal layer and then down again.The antenna ratio is defined as the ratio between the physical area of the conductors making up the antenna to the total gate oxide area to which the antenna is electrically connected.ERC verifies the correctness of power and ground connections, and that signal transition times (slew), capacitive loads and fanouts are appropriately bounded.