The multi-PMT optical module of KM3NeT

The KM3NeT Collaboration has developed a multi-PMT optical so lution for construction of the two deep-sea ARCA and ORCA telescopes. This approach several advantages compared to single-PMT modules which have been traditionally used in neutrino telescopes, including larger photocathode area is equivalent three 10-inch photomultipliers. In addition, allows high resolution, good positioning timing calibration. integration follows strict protocol standardised procedure. It takes place parallel at eight different sites labs collaboration. this way, it possible reach significant production rate more than 100 well-qualified per month. proceeding, we present details technology module process.