Technology
Acceptance criteria for PCB
Edge/contour of PCB

Qualified: Burrs cause rough edges on the board, but the edges are not damaged.
Qualified: The inward infiltration distance of the gap/halo is ≤ 50% of the board edge spacing, and the infiltration at any position is ≤ 2.54mm.
Unqualified: The warpage of the circuit board exceeds 0.75%.
Unqualified: There are continuous burrs at the edge of the fracture.
Unqualified: The halo and gap on the edge of the board exceed 50% of the distance between the board edges, or exceed 2.54mm.
Unqualified: The edges and corners of the board are damaged and delamination occurs.
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