  In the passive CMOS Strips Project, strip sensors were designed at the
University of Bonn and produced by LFoundry in 150 nm technology, with an
additional backside processing from IZM Berlin. Up to five individual reticules
were connected by stitching at the foundry in order to obtain the typical strip
lengths required for the LHC Phase-II upgrade of ATLAS or CMS trackers. After
dicing, sensors were tested in a probe station and characterised with a
Sr90-source as well as laser-based edge- and top-TCT systems. Sensors were also
simulated using Sentaurus TCAD. At last, detector modules were constructed from
several sensors and thoroughly studied in two beam campaigns at DESY. All of
these measurements were performed before and after irradiation. This
contribution provides an overview of simulation results, summarises the
laboratory measurements and in particular presents first test beam results for
irradiated and unirradiated passive CMOS strip sensors. We are demonstrating
that large area sensors with sufficient radiation hardness can be obtained by
stitching during the CMOS process, and presenting our plans for the next
submission in the framework of this project.
