HVCMOS modules for experiments at electron-positron colliders.

High-voltage CMOS detectors are being developed for application in High-Energy Physics. A full-reticle size monolithic pixle detector, consisting of 49000 pixels of dimension $50 \mu m$\times 150 $\mu m,$ has been realized in in TSI $180 {nm}$ HVCMOS technology. In view of applications at future electron-positron colliders, multi-chip-modules are built. The module design and its characterization by electrical test and radiation sources will be illustrated. The multi-chip-modules performance shows no degradation with respect to single-chip devices and the level of integration achieved is suitable for tracking at future accelerators like CEPC or FCCee.