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UV laser for PCB imaging and semiconductor inspection

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Coherent has launched its Paladin Advanced 355-8000, which is a diode-pumped, solid-state laser that delivers 8W of quasi-CW output at 355nm.

 

Specifically, improved resonator efficiency has reduced the number of pump diodes from four to two, enabling the Paladin Advanced 355-8000 to provide the same performance characteristics of the previous 8W unit, while featuring both a lower purchase price and reduced costs of ownership. Key performance features include excellent mode quality (M²<1.2), low noise (less than one per cent RMS from 10Hz to 2MHz) and an 80MHz repetition rate.

 

The Paladin Advanced 355-8000 also features PermAlign optics mounting, which makes the laser insensitive to shock and vibration, and ensures long-term stability without the need for adjustments. High reliability, long lifetime, Aluminum-free Active Area (AAA) pump diodes maximise the interval between diode replacements. A smart power supply allows hands-free operation and makes the Paladin Advanced 355-8000 easy to integrate.

 

With 8W of output power, the Paladin Advanced 355-8000 is ideal for laser direct imaging (LDI) of printed circuit boards, flat panel display (FPD) substrate scribing and circuit imaging, and inspecting both patterned and unpatterned semiconductor wafers.

 

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