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There are some technical keywords pointing to the future such as IoT (Internet of Things), virtual reality, big data/deep learning, 3D printing, energy harvesting, wireless transfer, etc. Smart sensor being responsible for scavenging data underneath has some overlap with each of these future keywords. For more than 3–4 decades, the growth of the semiconductor industry has been described roughly according to Moore’s law. As the demand from the market and the way it is responded to become more and more diverse, the relative portion of CPU, memory, PCs and tablets dwindles, while growth is expected in IoT, including vehicular, embedded medical, and consumer IoT based on AR/VR. Led by CIS (CMOS image sensor), a huge variety of sensors are emerging. Smart sensor has many challenges such as reducing power, size, and cost while improving the performance. The future of IoT in the vehicular, game …