06/07/2023
Protective measures to be taken after PCB circuit board cutting
1. Chamfering (also known as fillet): grinding the corners around the copper plate after PCB circuit board cutting into a semicircle
The benefits of chamfering:
â‘ It can prevent fine particles and burrs from appearing after the PCB board is scratched, because the PCB circuit board may have fine particles and burrs running into the via hole during the production process, if there are fine particles and burrs in the hole during the copper sinking process, it will As a result, the produced PCB has an open circuit or a short circuit.
â‘¡It prevents technicians from scratching their palms and arms during operation, and facilitates follow-up operations, improving production efficiency and safety.
â‘¢After production, the PCB board will also be more beautiful
2. Edge grinding (also known as trimming): After cutting the material, the PCB circuit board will be trimmed
The benefits of edging:
â‘ It can prevent burrs from appearing on the edge of the board. It is also possible that fine particles and burrs enter the hole or remain on the board surface. Special attention should be paid to details such as exposure and copper sinking processes, because there are fine particles in the holes and on the surface of these two processes And if the burr is not found in time, it may cause quality problems.
â‘¡Same as the previous rounded corners, it also prevents technicians from scratching their palms and arms during operation, facilitates the operation of subsequent operations, and improves production efficiency and safety.
Three: sticker sheet: After cutting the material, paste the paper sheet on both sides of the PCB circuit board
The benefits of stickers:
â‘ Same as above, prevent scratches
â‘¡Prevent dust from entering the hole
â‘¢It has the function of protecting the PCB board surface
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