Hall effect sensors with a metal layer comprising an interconnect and a trace

A Hall effect sensor comprises a semiconductor substrate, a first well formed in the semiconductor substrate, a first ohmic contact formed in the first well, a second ohmic contact formed in the first well, a first terminal electrically coupled to the first ohmic contact, a second terminal electrically coupled to the second ohmic contact, and a first metal layer formed over the semiconductor substrate. The first metal layer comprises a first interconnect and a first trace, where the first trace is formed over the first well, and where the first interconnect electrically couples a first part of the first well to a second part of the first well. The first and second ohmic contacts are each positioned between the first part and the second part of the first well, where the first interconnect is electrically isolated from the first trace.