PCB Technical - The reason for PCBA proofing before mass production of PCBA?

PCBA proofing is a small batch of PCB board SMT patch processing trial production verification test action carried out by customers due to the design requirements of new products to ensure that the product design meets the expected design requirements. Generally, the quantity of PCBA proofing is in 30 pieces or less.

Reasons for PCBA proofing

Usually, before mass production, a PCB factory or several factories will be selected for PCBA proofing. What is the purpose of this?

1. It is to check whether there is any problem with the PCB design and whether there is any need to modify it.

2. Whether the PCBA board produced is consistent with the expected function, and what needs to be improved.

3. It is to screen out strong factories to ensure the yield rate and test pass rate of PCBA production, to have an assessment of the approximate delivery date and quality, and to have an accurate estimate of the various conditions of the later mass orders.

What documents are needed for PCBA proofing?

1. Detailed and accurate BOM table;

2, Need to open the imposition stencil, need to provide the imposition Gerber document;

3. The silk-printed picture of the product tag number, may not be provided;

4. Patch coordinate file, optional;

5. PCB file (in order to ensure the customer's information, it is recommended that the customer delete the inner layer when sending the PCB board file, leaving only the TOP surface and the BOT surface).

How to choose a suitable PCBA chip processing manufacturer?

1. The company's online brand

A large amount of information about companies can be captured through supplier websites and social media. It’s hard to imagine a supplier that doesn’t even have a website, and has no relevant information in the search results of Weibo, WeChat, and Baidu, can do a good job in circuit board and SMT patch processing services, and it’s hard to imagine the website framework of a circuit board manufacturer is ugly ( Using templates, there is no sense of design), PCBA electronic product processing manufacturers that have not updated for a long time can also have a professional attitude to serve customers.

2. PCBA manufacturing capacity

You can learn about the manufacturing capabilities of circuit board production, PCBA processing and electronic assembly through the website of the circuit board manufacturer. Carefully read the main pages of the website navigation and find whether there are a lot of repetitive and contradictory introductions. These are the basis for evaluating whether its manufacturing capabilities are true.

Three, provide the corresponding quotation reference

Never kill a potential circuit board production and processing and PCBA electronic product processing manufacturer just because of the price, then the other party's initial quotation will be 50% higher. Because circuit board and PCBA suppliers make quotations under extremely limited conditions, they are not 100% clear about our own product market positioning, detailed process requirements, and test plans. On the contrary, those suppliers with high quotations are likely to have detailed considerations in this regard, while the suppliers with the lowest quotations seem to be only trying to win customers with price. As for the quality and craftsmanship, it is not the scope of their consideration for the time being. Generally, the initial quotation is based on a small batch of products, and it is very normal to have a large price difference.

Fourth, improve the quality control process and production process

Possess a professional quality control plan and a complete production process, including the process and internal management dimensions, which is an important factor in evaluating PCBA electronic product processing suppliers.

5. Certification ability

Whether the electronic manufacturing service provider has professional UL, CE, RoHS, TS16949, ISO9001 and other series certifications, which will determine the quality and reliability of circuit board manufacturing and assembly.

6. Professionalism of sales and service personnel

Just a phone call can clearly distinguish the professionalism of the salesperson, such as whether the speech is smooth, whether the business knowledge is proficient, whether the performance is extremely professional, etc. This is also to evaluate whether the circuit board production and PCBA processing manufacturers have a professional sales team Important reference.