PT Journal AU DEPFET collaboration (Alonso, Oea Boronat, M Esperante-Pereira, D Fuster, J Garcia, IG Lacasta, C Oyanguren, A Ruiz, P Timon, G Vos, M TI DEPFET Active Pixel Detectors for a Future Linear e(+)e(-) Collider SO IEEE Transactions on Nuclear Science JI IEEE Trans. Nucl. Sci. PY 2013 BP 1457 EP 1465 VL 60 IS 2 DI 10.1109/TNS.2013.2245680 LA English DE Active pixel sensor; DEPFET; linear collider; vertex detector AB The DEPFET collaboration develops highly granular, ultra-transparent active pixel detectors for high-performance vertex reconstruction at future collider experiments. The characterization of detector prototypes has proven that the key principle, the integration of a first amplification stage in a detector-grade sensor material, can provide a comfortable signal to noise ratio of over 40 for a sensor thickness of 50-75 μm. ASICs have been designed and produced to operate a DEPFET pixel detector with the required read-out speed. A complete detector concept is being developed, including solutions for mechanical support, cooling, and services. In this paper, the status of the DEPFET R & D project is reviewed in the light of the requirements of the vertex detector at a future linear e(+)e(-) collider. ER