PCB PURPOSE:(This messages were copy from IPC-A-600H CN)

The visual illustrations in IPC-A-600H CN specific criteria of

the requirements of current IPC specifications. In order to properly

apply and use the content of this document, the printed board

should comply with the design requirements of the applicable IPC-

2220 series document and the performance requirements of the

applicable IPC-6010 series document. In the event the printed

board does not comply with these or equivalent requirements, then

the acceptance criteria should be as agreed between user and supplier

(AABUS).

Criteria defined in this document reflect three classes, which are as

follows:

Class 1 – Includes limited life products suitable for applications

where the requirement is function of the completed product.

Class 2 – Includes products where continued performance and

extended life is required, and for which uninterrupted service is

desired but not critical.

Class 3 – Includes products where continued high performance or

performance-on-demand is critical, product downtime cannot be

tolerated, and the product must function when required.

As we can see that from those Class 1 2 3 we can divide our products into different level. High level middle level and also normal level. When you read this class you might curious ,about my product what is usually standard? About my product which should we choose the standard?

Let me give you some suggestions about it.

For those products which used in very high level like this automotive PCB which need very high quality control we will suggest our customer use Class 1. In this case we can guaranteed the quality standard. Because these products will used in very important role in the car production process so it have to be very good quality, Once you use low standard it will be a disaster.

And for those products used in general products like the machine industry machine. You can ask the designer or our seller ,they can suggest you according you give this products specifications. We have very professional team to help you decided which one should choose.

Some one might say, in this case we should use high quality PCB standard. But actually it is not ,the best thing is use the most suitableness one.

Dalian JY has always been consider our customer’s need and try to do customized services them. So if you have new projects just feel free to contact us, we will supply you an excellent services.