Dark Current Reduction in Image Sensors Through Metals Gettering : A Critical Review of Disruptive Techniques
نویسنده
چکیده
Dark current reduction in image sensing devices is one of the challenging tasks, as the metal contamination requirements become stringent (<1E5 atoms/cm) for future technology nodes. With the advent of backside illumination (BSI), the stacked image sensors demand for efficient gettering mechanisms for better device performance and yield (DPY). It is the purpose of the present paper to introduce the most advanced disruptive gettering schemes, based on Varian’s highly differentiated Process Temperature Control systems. The application space for the cryogenic and heated carbon implants with specific reference to the front and backside illuminated image sensing devices, will be discussed.
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