Apparatus for manufacturing printed circuit boards

A device for manufacturing printed circuit boards, the circuit boards each comprising:

• 1) a substrate having opposite-facing front side and rear side surfaces and having a carrier layer from an electrically insulating material, and
• 2) an electrically conducting layer applied to the substrate, said device comprising:
• a. a drive system by way of which the substrate can be set in rotation;
• b. at least two nozzles configured such that developer solution and/or an etching liquid can be applied simultaneously to both of the front side and rear side surfaces of the rotating substrate, and
• c. a housing that encloses an interior space,
• wherein:
• at least a first nozzle of the at least two nozzles is attached to a pivotable or displaceable arm,
• the arm is pivotable or displaceable relative to a rotation axis of the rotating substrate,
• a pivoting movement and/or a displacement of the arm varies a position of the first nozzle relative to the rotation axis of the rotating substrate such that each point on the front side or rear side surfaces of the rotating substrate can be sprayed perpendicularly with the developer solution and/or etching liquid by the first nozzle, and
• the drive system is configured to set an annular support frame, which is positioned vertically in the interior space, into rotation.