Fine-line technology PCBs without soldermask but with mechanical PTH
Original Bungard positive presensitized boards |
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CNC-drilling and contour routing (BUNGARD CCD/2) |
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vacuum exposure (HELLAS) |
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dip developing + rinsing + sprayetching + chemical tinning + drying (all in Splash CENTER) |
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mechanical PTH (FAVORIT) |
System features: