Fuente: Wipo "Sensorization" A system for measurement of an analyte level including an analyte sensor having an in vivo portion in contact with the interstitial fluid of a user and an ex vivo portion. The sensor further includes at least one working electrode and a reference electrode located on the in vivo portion, and a first substrate. The at least one working electrode and reference electrode sense signals associated with a measured analyte level in the interstitial fluid of a user. Further, the ex vivo portion includes a plurality of electronic components mounted thereon, and at least one of the electronic components are configured to receive the generated signals associated with the measured analyte level. The electronic components are mounted to the ex vivo portion using photonic soldering.