Definition of blind buried holes in PCB circuit boards.single sided pcb application_Shenzhen StarLight Industrial Development Co., Ltd.

Definition of blind buried holes in PCB circuit boards.single sided pcb application

source:News release time:2023-10-07 Hits: Popular:PCB Assembly company: Share:

　　1、 Definition of blind buried holes in PCB circuit boards

　　Blind buried holes refer to circuit connection holes that are not visible on the surface of some conductive hole areas in a circuit board. Usually, blind holes start from one surface of the board and end in one or more internal layers, without penetrating the entire board.

　　Blind buried holes are usually divided into two types: blind holes and buried holes. Blind holes are conductive holes from the outer layer to the inner layer, with one end visible from the outer layer of the board and the other end hidden in the inner layer. Buried holes are completely hidden between internal layers and are invisible to any side of the circuit board.

　　2、 The manufacturing process of blind buried holes in PCB circuits

　　Making blind buried holes requires a more complex process than conventional circuit board fabrication. The production process mainly includes steps such as precise hole marking, precise drilling, hole wall copper plating, pattern transfer, and electroplating. At each step, special equipment and techniques are required to ensure the accuracy and quality of the production process.

　　Increasing the complexity of blind hole manufacturing process will also increase the manufacturing cost of circuit boards. Therefore, blind buried holes are generally only used when necessary, such as in high-frequency and high-density circuit designs.

Read recommendations:

3mil 4L Rigid Flex PCB Black Solder Mask Diy Flexible Circuit Board

Double Sided PCB

Lightweight Aluminum PCB Board Green Solder Mask Led Light Pcb Board 3.0mm