27 July 2016 Back-illuminated large area frame transfer CCDs for space-based hyper-spectral imaging applications
Author Affiliations +
Standard offerings of large area, back-illuminated full frame CCD sensors are available from multiple suppliers and they continue to be commonly deployed in ground- and space-based applications. By comparison the availability of large area frame transfers CCDs is sparse, with the accompanying ~2x increase in die area no doubt being a contributing factor. Modern back-illuminated CCDs yield very high quantum efficiency in the 290 to 400 nm band, a wavelength region of great interest in space-based instruments studying atmospheric phenomenon. In fast framing (e.g. 10 – 20 Hz), space-based applications such as hyper-spectral imaging, the use of a mechanical shutter to block incident photons during readout can prove costly and lower instrument reliability. The emergence of large area, all-digital visible CMOS sensors, with integrate while read functionality, are an alternative solution to CCDs; but, even after factoring in reduced complexity and cost of support electronics, the present cost to implement such novel sensors is prohibitive to cost constrained missions. Hence, there continues to be a niche set of applications where large area, back-illuminated frame transfer CCDs with high UV quantum efficiency, high frame rate, high full well, and low noise provide an advantageous solution. To address this need a family of large area frame transfer CCDs has been developed that includes 2048 (columns) x 256 (rows) (FT4), 2048 x 512 (FT5), and 2048 x 1024 (FT6) full frame transfer CCDs; and a 2048 x 1024 (FT7) split-frame transfer CCD. Each wafer contains 4 FT4, 2 FT5, 2 FT6, and 2 FT7 die. The designs have undergone radiation and accelerated life qualification and the electro-optical performance of these CCDs over the wavelength range of 290 to 900 nm is discussed.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert H. Philbrick, Robert H. Philbrick, Angelo S. Gilmore, Angelo S. Gilmore, Ronald J. Schrein, Ronald J. Schrein, "Back-illuminated large area frame transfer CCDs for space-based hyper-spectral imaging applications", Proc. SPIE 9915, High Energy, Optical, and Infrared Detectors for Astronomy VII, 99151M (27 July 2016); doi: 10.1117/12.2230828; https://doi.org/10.1117/12.2230828


SIOO2A a three side buttable 2048 x 4096 CCD...
Proceedings of SPIE (March 24 1996)
CCD detector for the space telescope imaging spectrograph
Proceedings of SPIE (September 13 1994)
Development Of Large CCD Arrays With Enhanced UV Performance
Proceedings of SPIE (December 27 1989)
Wafer-scale scientific CCDs at Fairchild Imaging
Proceedings of SPIE (September 28 2004)
Diffusion dark current in CCDs and CMOS image sensors
Proceedings of SPIE (February 28 2008)

Back to Top