1.Why we do the EQ process?

Engineering questions are the number one complaint most PCB buyers have about board manufacturers.

They may ask“Why can’t you build the boards without all these questions?” “We sent you the working files!”

Honestly, no pcb factory wants to ask questions which may upset customers, but sometimes, the designer may overlook some minor issues, such as silkscreen on pads, even short circuit, so it is essential and necessary to perform the DFM process to help customers to avoid the overlooked issues before production.

Besides, it can protect the interstes of both the manufacturer and customers.  

So it is worth taking time for customers to check and answer all the engineer questions carefully. 

2.What we do for EQ checking normally?

Today, we are here to explain what the engineer check for the gerber file? There are four parts.

First of all, to check the completeness of the Gerber files, whether all the necessary layers are included, the outline, the solder mask and silkscreen layers and so on.

Secondly, to check the basic information of the PCB, like the dimension, space of the tracks，and some specifications which match with the requirements or not 

Thirdly, to check the open/ short circuit, silkscreen on the pads, holes designs

Last but no least, it is about our production capability, such as the space between BGA, pads of IC, tolerance and so on 

3.How long normally it takes for the engineers to check the design?

For simple boards, all the issue can be fixed within one day after the order placed, from our engineer checking to sales team feedback to you.

For some boards with its difficulty or special requirements as some impedance control which our engineer need analysis/calculate the data, boards design which has blind/buried vias/limited design to reach our production capability, which may takes 1-2 days to fix. Although the time used, it can reduce errors from many aspect. And a PCBA order, it won’t ave any influence on the whole lead time.

The most important thing is that we work together to make it better, and reduce the lose on time and expense.