Type of via for Flex rigid PCB
Flex rigid PCB factory tells you via are generally divided into three types: via, blind holes and buried holes.
Blind hole: it is located on the top and bottom surfaces of the printed circuit board and has a certain depth, which is used for the connection between the surface circuit and the inner circuit below. the depth of the hole usually does not exceed a certain ratio of the pore diameter.
Buried hole: a connection hole located in the inner layer of a printed circuit board that does not extend to the surface of the Flex rigid PCB.
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Via: this hole passes through the entire Flex rigid PCB and can be used for internal interconnection or as a positioning hole for the installation of components. Because the via is easier to realize in the process and the cost is lower, the printed circuit board is generally used.
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