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Spectral sensors are an integral part in digital cameras and mobile phones. To exhibit color sensitivity, color filters are fabricated above photodiodes. However, processes that rely on the sequential fabrication of each filter are cost ineffective. In collaboration with LiteOn Semiconductor, we introduce an approach to produce at least 16 distinct filters based on a single low-resolution lithographic step with a minimum feature size of 0.6 μm.

Channel News Asia Talking Point, Engineering Product Development Associate Prof Mohan showcases the Falcon robot which inspects false ceilings for rodents infestations.