IPC-A-6 10E standard is an electronic manufacturing industry standard formulated by IPC (Instituto Printed Circuits Association), and it is one of the most widely used standards in this industry. IPC-A-6 10E standard stipulates the appearance standard, defect and problem judgment standard of electronic components installation, and is one of the most important standards in electronic manufacturing industry. IPC-A-6 10E standard came out in 2009, which is the latest version of IPC-A-6 10 standard, mainly including component installation, board screen printing, board welding, line spacing, short circuit between lines and so on. These aspects are divided into different grades, and each grade stipulates different appearance standards. The formulation of IPC-A-6 10E standard aims to improve the standardization level of electronic manufacturing industry and promote the improvement of product quality and the development of the industry.