Apparatus for inspecting printed circuit board

摘要

Disclosed herein is an apparatus for inspecting a printed circuit board. The apparatus includes a first laser light source; a first light condensing unit condensing a light emitted from the first laser light source onto a printed circuit board having a via-hole; a first dichroic beam splitting unit separating fluorescent light a fluorescence generated from the printed circuit board by the light condensed by the first light condensing unit from the light emitted from the first laser light source; and a determining unit determining an unplated state of the printed circuit board from the light passing through the first dichroic beam splitting unit, wherein the via-hole formed in the printed circuit board includes an internal side surface having an unplated part which is not plated, and the light emitted from the first light condensing unit is incident at a first angle with respect to the printed circuit board and condensed to the unplated part of the internal side surface of the via-hole. Through this apparatus, the defects of the printed circuit board can be promptly determined.