The infrared detectors for the wide field camera 3 on HST

We present the performance of the IR detectors developed for the WFC3 project. These are HgCdTe 1Kx1K devices with cutoff wavelength at 1.7mum and 150K operating temperature. The two selected flight parts, FPA#64 (prime) and FPA#59 (spare) show quantum efficiency higher than 80% at lambda=1.6mum and greater than 40% at lambda>1.1mum, readout noise of similar to25 e(-) rms with double correlated sampling, and mean dark current of similar to0.04 e/s/pix at 150K. We also report the results obtained at NASA GSFC/DCL on these and other similar devices in what concerns the QE long-term stability, intra-pixel response, and dark current variation following illumination or reset.