2 July 2010 Space-qualified, abuttable packaging for LBNL p-channel CCDs, part II
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Abstract
Fully depleted, back-illuminated, p-channel CCDs developed at Lawrence Berkeley National Laboratory exhibit high quantum efficiency in the near-infrared (700-1050nm), low fringing effects, low lateral charge diffusion (and hence small, well-controlled point spread function), and high radiation tolerance. Building on previous efforts, we have developed techniques and hardware that have produced space-qualified 4-side abuttable, high-precision detector packages for 10.5μm pixel, 3.5k x 3.5k p-channel LBNL CCDs. These packages are built around a silicon carbide mounting pedestal, providing excellent rigidity, thermal stability, and heat transfer. Precision fixturing produces packages with detector surface flatness better than 10μm P-V. These packages with active areas of 36.8mm square may be packed on a detector pitch as small as 44mm. LBNL-developed Front End Electronics (FEE) packages can mount directly to the detector packages within the same footprint and detector pitch. This combination, along with identically interfaced NIR detector/FEE packages offers excellent opportunities for high density, high pixel count focal planes for space-based, ground-based, and airborne astronomy.
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R. W. Besuner, C. Baltay, H. T. Diehl, W. T. Emmet, S. E. Harris, P. N. Jelinsky, J. C. Krider, D. L. Rabinowitz, N. A. Roe, "Space-qualified, abuttable packaging for LBNL p-channel CCDs, part II", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420H (2 July 2010); doi: 10.1117/12.856469; https://doi.org/10.1117/12.856469
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