Dear ALLPCB customers,

We have just updated our system recently, and if you have identifed any issue during ordering process,please feel free to contact us directly .Thanks for your cooperation !


Cart 0
Thank you very much for your valuable suggestion!
We will solve it as soon as possible!

What Values Should Designer Specify for PCB Stack-Up?

Defining stack-up note is one important step of set-up in PCB design, as it helps the designer describe the manufacturing limitations clearly. If a designer wants a detailed and clear description of stack-up, the following values should be specified:


values for stack up



About Material

The material should be included in the designer-specified values for PCB stack-up. Firstly, material types can be chosen from copper or dielectric. When specifying dielectric, please make sure what you want is core or Pre-Preg. All though the material is still undecided, the material tolerances need to be specified. The values can be noted clearly by layers to explain the corresponding tolerance for each layer. For example, both the core and Pre-Preg material should be specified about +/-2-5%. If the copper value is in accordance with dielectric, then a simple +/- value in percentage may be used in a note.


Copper Thickness

Copper thickness is another designer-specified value for PCB stack-up.The thickness values (finished values)refer to the thickness and thickness tolerance of all layers or each layer. In normal conditions, the cooper thickness most that manufacturers consider is +/-001’’[.0254], but copper plating tolerance is much more difficult to control.


Overall Thickness

Besides, the third designer-specified value for PCB stack-up is the overall thickness. Additionally, as the total of all the material tolerance, the overall tolerance should also be taken into account and specified clearly. Actually, according to many manufacturers, the overall tolerance of +/-10% is always recommended.

Why Buy Your Printed Circuit Boards From Us?

Checked and Verified On-spot

Select Most Fit Factory

Comparable on Price & Quality & Delivery

Instant Online Quote

Express Delivery

Multiple Payment Methods

100% Satisfaction Guaranteed


Quote Now