What is the difference between blind holes and buried holes?-深圳市海博精密电路有限公司

Blind holes are located on the top and bottom surfaces of buried blind hole circuit boards, with a certain depth, used for connecting the surface and inner layers. The depth of the hole usually does not exceed a certain proportion. Blind holes are a type of through-hole that connects the inner wiring of a PCB with the surface wiring of a blind buried hole board. Blind holes do not penetrate the entire board.

The buried hole is located in the inner layer of the PCB and does not extend to the surface of the printed circuit board. It is a hole that only connects the wiring between the inner layers, so it cannot be seen from the surface of the blind buried hole board.

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