Development of Single- and Double-sided Ladders for the ILD Vertex   Detectors
  We discuss two projects exploring the integration of thin CMOS pixel sensors in order to prototype ladders matching the geometry needed for the ILD vertex detector. The PLUME project has designed and fabricated full-size and fully functional double- sided layers which currently reach 0.6 % X0 and aim for 0.3 % X0 in mid-2012. Another approach, SERNWIETE, consists in wrapping the sensors in a polyimide-based micro-cable to obtain a supportless single-sided ladder with a material budget around 0.15 % X0. First promising samples have been produced and the full-size prototype is expected in spring 2012. 
Jerome Baudot, Olena Bashinska, Nathalie Chon-Sen, Wojciech Dulinski,   Franziska Hegner, Marie Gelin-Galibel, Rhorry Gauld,...
physics.ins-det hep-ex