QUBIC (Q&U Bolometric Interferometer for Cosmology) is a CMB polarization experiment that make use of the novel tech- nique of Bolometric Interferometry. This technique brings together the advantages of bolometric detectors in terms of sensitivity (availability of large arrays of background-limited detectors with wide band- width) and of interferometry in terms of control of systematic effects.

QUBIC will be composed of interferometer modules operating at three different frequencies (97, 150 and 220 GHz). Each module will respectively comprise 144, 400 and 625 receiver horns. The experiment will be running from Antarctica, at the French-Italian Dome-C station.

The Department of Physics of the University of Milano will produce the large forcal plane feed-horn array for the 150 GHz QUBIC channel using a novel technique of platelet photo-etching. If successful the technique will be exploited also for the other two QUIBIC channels.