Blind/Buried holes
How to correctly specify the number of blind/buried layer sets on your project page to get an accurate quote.
In order to receive an accurate quote (both in cost and in lead time), it is important that you ensure the correct number of blind/buried layer sets is selected in the board options on your project page.
For example, if on an 8 layer board you have blind vias from L1-L3, that would be one blind/buried layer set. If you have blind vias from L1-L3 and buried vias from L5-L7, that would be two blind/buried layer sets.
Failure to correctly specify these prior to ordering may result in orders delays and additional charges.