An outer border, and a seal ring substantially co-extensive with and spaced from the outer border is disclosed. A plurality of fault detection chains extend from adjacent the outer border to within the seal ring. At least a first one of the plurality of fault detection chains includes a contact pad, a first metal feature coupled to the contact pad by a first via in a passivation layer, a second metal feature coupled to the first metal feature by a second via, and a substrate contact coupled to the second metal feature by a third via.