2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196964We briefly describe the production, installation and commissioning of the new 800,000 channel D0 Silicon Microstrip Tracker to be used for the 2 fb$^{-1}$ of the Run IIa at the Tevatron.5 Latex pages, 3 figures. to appear in proceedings of Como 2001High Energy Physics - Experimenttext