The CDF SVX-II upgrade for the Tevatron run II

A microstrip silicon detector SVX-II has been proposed for the upgrade of the vertex detector at the CDF experiment to be installed in 1999 for run II of the Tevatron. Three barrels of five layers of double-sided silicon microstrip detectors will cover the interaction region. A description of the project status will be presented. Emphasis will be given to the R&D program for silicon sensors which includes capacitance minimization; the study of coupling capacitor integrity; the operation of the detectors in conjunction with the SVXH and SVX2 readout chips in two beam tests and the determination of the detectors performance deterioration due to radiation damage.