6. DESCRIPTION AND TECHNICAL SPECIFICATIONS
SWIR CMOS sensor
SNAKE-SW TECLESS introduction
D
esigned and fabricated by SOFRADIR, the SNAKE-SW TECLESS sensor is dedicated for flux imaging
applications in the SWIR band. On the one hand, it is responding to night vision, airborne tracking,
surveillance needs, and on the other hand, on various medical applications in preclinical and clinical
such as real-time intra/per/postoperative, oncology, dentistry and neurosciences, for example.
SNAKE-SW TECLESS includes a focal plane array (FPA) composed of a (640 x 512) pixels pitch of 15 µm
each. It is made of photovoltaic (PV) Indium Gallium Arsenide (InGaAs) on Indium Phosphide (InP)
substrate connected by bump bonding to a silicon readout integrated circuit (ROIC).
Standard InGaAs used in SNAKE-SW TECLESS allows to detect wavelength ranges between 0.9 and 1.7
µm.
The digital and analog functions are controlled by a serial interface. The readout of SNAKE-SW
TECLESS allows to read windows in cropping mode.
Spectral response
T
ypical curve is represented on Fig. 3:
Figure 3:
InGaAs quantum efficiency between 900 and 1800 nm.
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