The end of »puddling effect«

New features at Pill
• An end to the puddling effect during etching.
• Uniform etching results on the top side of PCBs in horizontal etching lines after

  only a single pass.
• Equally successful etching results on the top and bottom side of PCBs.
• Elimination of reworking processes using correction modules.
• Successful processing of even ultra-thin PCBs (<50µm).
• Etching of even the smallest conductors and tightest distances (50/50µm) possible.

How the method works

The etchant is extracted from the board surface immediately after spraying, so creating

space for fresh etchant to be applied. No puddles are able to form as with convention modules, meaning an end to copper residues.
An extraction pipe is mounted between each of the spray manifolds.
This extracts the surplus etchant from the surface and returns it for recirculation.
Venturi nozzles in the pressure pipe of a separate circuit create the required vacuum.
Air suctioned from inside the system alongside the etchant causes no problems.
As a result of interruption of the conveyerguidance system, spray shadows are effectively avoided. The complete process is controlled electronically.

Intelligent maintenance concept

The system is designed to permit simple dismantling without the use of tools. The extraction pipe can be taken out individually. The lid does not need to be opened. The ventilation system can remain operational and vapours are hardly released.
This means only a minimal interruption of the etching process and consequently high productivity.

top with vacuum-etching-technology (+/- 1µm),

bottom without (+/- 4µm)

Material of Construction PP/PVC/Titanium
Available Working Widths 17.73, 25.61, 29.55 ["]
Maximum Spray Pressure 36 [psi]
Maximum Extraction Pressure 10 [psi]
Heat up Time to 122 °F < 2 Hours
Specifications: Flat Jet Spray Nozzles
Individually removable Spray Bars
Electronic Pressure Control of each Pump
Frequency controlled Pumps
Pressure Adjustment via Display
Fast Cleaning Filter with each Pump
Electronic Flow Control of each Spray Bar