One-stop PCBA service means that all the information is sent to the factory which directly assembles the finished product which will be sent to the customer. So more and more customers want to do one-stop PCBA service. The customer only needs to check the final product. The one-stop service has broken the traditional PCBA service. Because this service model integrates more resources. The service model aims at serving customers, facilitating customers, and saving time and cost for customers. Therefore, one-stop service is PCBA's trend of development.