Author/Authors :
P.K.، Swain, نويسنده , , J.R.، Tower, نويسنده , , Hsueh، Fu-Lung نويسنده , , R.M.، Dawson, نويسنده , , P.A.، Levine, نويسنده , , G.M.، Meray, نويسنده , , J.T.، Andrews, نويسنده , , V.L.، Frantz, نويسنده , , M.S.، Grygon, نويسنده , , M.A.، Reale, نويسنده , , T.M.، Sudol, نويسنده ,
Abstract :
The key features and performance data of a 2560*1960-pixel split-frame-transfer imager developed for space surveillance is described. The eight-port, backside illuminated charge coupled device (CCD) features 24 (mu)m pixels with buried blooming drains to provide 100% optical fill-factor and >1000* overload protection from blooming. The imaging and storage registers are strapped with metal to achieve vertical transfer clock rates >400 KHz for the 61 mm long imaging register gates. The 5 million pixel array operates at 2.7 frames/s. The monolithic focal plane includes a 32*32-pixel frame-transfer imager, with a single output, which operates at 1000 frames/s. The output ports employ a floating diffusion output circuit with responsivity of 10.5 (mu)V/e and noise of 7e RMS at a 1.25 MHz clock rate. The imager is photocomposed employing a combination of 5* and 1* lithography. The photocomposition approach is described.