Producer Optiva system is capable of depositing low temperature, conformal films that boost the low-light performance of the sensor while improving its durability. The system enhances the performance of the microlens by covering it with a tough, thin, transparent film layer that reduces reflections and scratches, and protects it from the environment. Importantly, the Optiva tool is the first CVD system to enable >95% conformal deposition at temperatures less than 200°C. As typical bonding adhesives have thermal budgets of approximately 200ºC, all subsequent processing on these temporarily bonded wafers must be done below 200ºC.
According to iSuppli, three-quarters of all smartphones will be fitted with BSI sensors in 2014, up from just 14% in 2010.