Fujitsu Corporation

Kouichi Ishida

Eishiro Kawana

An etching apparatus for etching a printed circuit board includes a transport mechanism for horizontally transporting a printed circuit board in a transporting direction so that a height of the printed circuit board during etching is kept at a transport position, a plurality of upper spray nozzles for injecting an etchant to a top surface of the printed circuit board transported by the transport mechanism, and a plurality of lower spray nozzles for injecting an etchant to a bottom surface of the printed circuit board. In the etching apparatus, a flow rate of the etchant injected to the top surface of the printed circuit board is made greater than a flow rate of the etchant injected to the bottom surface of the printed circuit board by an arrangement of the upper spray nozzles and the lower spray nozzles.

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Kawasaki, Japan

Kouichi Ishida