Automobile manufacturers have implemented optical sensors on vehicles and boosted the demands of sensors in recent years. Currently each vehicle is installed with four to five set sensing elements. It is forecasted that the number will keep growing and by 2020, every single vehicle might be installed with up to 10 sensing elements. Another major market for sensor applications is wearable devices. The market expansion of wearable devices will increase the needs of photodiode by four-fivefold.