China Wholesale Understanding Circuit Boards Factories - 6 Layer ENIG Blind Vias PCB 27809 – Huihe

Features of the Blind Via

Blind Vias are located on the top and bottom surfaces of the circuit board and have a certain depth for the connection between the surface circuit and the inner circuit below. The depth of the hole usually does not exceed a certain ratio (aperture). This way of production will need to pay special attention to the depth of the hole (the Z axis) to the right, do not pay attention to words will cause difficult hole plating so almost no factory used, can also be connected in advance to the layer in the individual circuit when the circuit was first drill hole, and then sticking up, need more precision positioning and contrapuntal device.

Advantage of the Blind Buried Via

The advantage of blind buried vias for engineers is that the density of components is increased, while the number of layers and size of circuit board are not increased. For electronic products with narrow space and small design tolerance, blind hole design is a good choice. The use of this kind of hole is helpful for circuit design engineers to design reasonable hole / pad ratio and avoid excessive ratio.