An electronic device is provided. The electronic device includes a housing and a sensor module disposed in at least a portion of the housing. The sensor module includes a fingerprint recognition sensor, a protective layer covering the fingerprint recognition sensor, an adhesive member placed on the protective layer, and a ceramic layer placed on the adhesive member, wherein the edge of the ceramic layer, the edge of the adhesive member, and the edge of a part of the protective layer include machined surfaces. Other embodiments are also possible.