CMS Phase-2 Inner Tracker Upgrade

The HL-LHC conditions of instantaneous peak luminosity up to 7.5x10 34 cm -2 s -1 and an integrated the order 300 fb /year is expected result in 1 MeV neutron equivalent fluence 2.3 x 10 16 n eq /cm 2 a total ionizing dose (TID) 12 MGy (1.2 Grad) at center CMS Experiment, where its innermost component, Phase-2 Pixel Detector will be installed. This detector has survive above radiation dose, handle hit rates 3.2 GHz/cm layers closest beam line, able track separate particles extremely dense collisions, deal with pileup 140-200 collisions per bunch crossing have high impact parameter resolution. translates into highly granular design thinner sensors smaller pixels, faster more hard electronics compared Phase-1 detector. contribution reviews upgrade (silicon-based) Inner Tracker focusing on features layout developments pixelated devices.