abstract |
Provided is a chemical sensor that can achieve high detection precision. A chemical sensor 100 that is characterized by having a substrate 1, a magnetoresistance effect element 3 that is arranged above the substrate 1, a first film 10 that is arranged above the magnetoresistance effect element 3, and a second film 20 that is arranged in a region that surrounds the magnetoresistance effect element 3 or above the region that surrounds the magnetoresistance effect element 3, the solubility of the second film 20 with respect to a specific liquid being greater than that of the first film 10. |