PCBA outsourcing, also known as OEM processing, refers to customers entrusting the production and material procurement of PCBA components to a professional factory, and then waiting for the factory to deliver the finished products according to the agreed time between both parties. The OEM processing method effectively saves customers' time costs by entrusting production process control and logistics procurement to professional PCBA processing plants, avoiding bargaining and procurement time in the procurement of electronic components and other materials. At the same time, it saves inventory costs, inspection time, personnel expenses, etc., and can effectively transfer risks to the processing plants.

When choosing the OEM contract manufacturing method for cooperation, factories need to charge appropriate management costs, which can effectively reduce customers' overall costs and allow them to focus on their areas of expertise, such as design, research and development, marketing, after-sales service, etc.
The detailed processing flow of OEM outsourcing method for Shenzhen Longjiangchang Circuit Co., Ltd. is as follows:

1. PCBA processing project evaluation: When designing products, customers have an important evaluation, which is manufacturability design, which is crucial for quality control in the manufacturing process.
2. Confirm cooperation and sign contract: After negotiation, both parties decide to cooperate and sign the contract.
3. Customer provides processing information: After the customer completes the product design, they submit engineering documents such as Gerber files and BOM lists to the supplier. The supplier usually has dedicated process personnel to review, confirm, and evaluate details such as steel mesh printing, surface mount technology, and plug-in technology.
4. Material procurement, inspection, and processing: Customers prepay the supplier for the engineering cost of OEM materials (ranging from 80% to 30%, depending on product profit, generally 70%). After receiving the payment, the supplier purchases components and prepares all necessary materials for production according to the PMC plan.
5. SMT surface mount processing and DIP plug-in processing: After the materials are put into production and undergo processes such as screen printing surface mount, reflow soldering, AOI testing, DIP plug-in and wave soldering, quality inspection is carried out.
6. Quality inspection by the quality department: The quality department randomly inspects products and repairs them if any defective products are found.
7. Packaging, shipping, and after-sales service: All products are packaged and shipped after production is completed, using anti-static packaging bags, and after-sales service is tracked.