What is the difference between EMS and PCBA?

What is the difference between EMS and PCBA?

electronic manufacturing services (EMS) is an original equipment manufacturer (OEM) of electronic components and components used for company, testing, manufacturing, distribution, and providing return/repair service periods. This concept is also known as Electronic Product Contract Manufacturing (ECM). The EMS industry rose in the late 1970s. At that time, most electronic manufacturing and large-scale products were assembled and processed by the company. This business model EMS industry is specialized in large-scale economic production, raw material procurement and centralized resources, professional solutions for industrial design, and creation of value-added services, such as warranty and maintenance

Electronic Manufacturing Services (EMS) is an original equipment manufacturer (OEM) of electronic components and components used for company, testing, manufacturing, distribution, and providing return/repair service periods. This concept is also known as Electronic Product Contract Manufacturing (ECM).

The EMS industry rose in the late 1970s. At that time, most electronic manufacturing and large-scale products were assembled and processed by the company. This business model EMS industry is specialized in large-scale economic production, raw material procurement and centralized resources, professional solutions for industrial design, and creation of value-added services, such as warranty and maintenance. This will release customers with large inventories. Therefore, they can respond to the sudden peak demand more quickly and effectively. Surface Mount Technology (SMT) printed circuit board (PCB) can realize the rapid assembly of electronic products. In the early 1990s, we saw OEM manufacturers quickly install SMT production lines. By the mid-1990s, the advantages of EMS concept were noticeable and OEMs began to outsource printed circuit board assembly (PCBA) on a large scale. At the end of the 1990s and early 21st century, many OEMs sold their assembly plants to compete for market share with active EMS. The wave of integration followed, and more cash washing enterprises were able to quickly buy up existing plants and small EMS companies.

Printed Circuit Board (PCB), also known as printed circuit board (PCB), is an important electronic component, a support for electronic components, and a provider of circuit connection for electronic components. Because it is made by electronic printing technology, it is called "printed" circuit board. PCBA is the abbreviation of Printed Circuit Board+Assembly in English. In short, PCBA can be a series of technological processes consisting of SMT chip processing, DIP plug-in processing and PCBA testing.

Among them, SMT chip processing is simply to process electronic components on bare PCB boards. PCB boards are printed with solder paste, mounted with components, reflow soldering, manual soldering and AOI testing, and quality inspection by the Quality Department. Then process the DIP plug-in.

DIP plug-in processing refers to plug-in processing of electronic components that cannot be mounted, and through wave soldering, shear pin quality inspection and other processes. So far, most of the PCBA processing has been completed. Then test and program burning are required. Complete the whole processing flow.

EMS actually includes OEM and ODM, and OEM and ODM also include PCBA. Therefore, the PCBA process is actually a part of EMS. Compared with PCBA, EMS is more difficult and complex in process and requires a high technical foundation.