People may not be familiar with the IoT, which has seeped into our daily lives. The IoT refers to internet that interconnects with all things. It is known as the world's third wave of IT industry development after computers and the Internet. The IoT is the core of the new century’s information technology. It has expanded and extended the user terminal to inter-connect with all things via the Internet, enabling these things to communicate and exchange data. Nowadays, every item in our lives is a user terminal of the IoT; for example, smart phones, tablets, smart watches, personal navigation systems, automobiles, medical devices, etc., that we commonly use. It is predicted that the future of the IoT device market will be the key development direction of the connector supplier market.