The AVIA 355-28, from Coherent extends the company’s family of micromachining lasers to deliver] 28 Watts of output at 355 nm (at 110 kHz). This high power and repetition rate is said to increase throughput for micromachining applications in semiconductor fabrication and packaging. Target applications include dicing and scribing of silicon wafers and low-k semiconductors, and via-hole drilling in PCBs and flip chips.
In addition to higher power, features of the AVIA 355-28 include PosiLock, Coherent’s proprietary technology for repeatable spot positioning at the work surface, PulseEQ, which provides constant pulse energy across a range of rapidly varying pulse repetition rates, and an automated harmonic crystal shifter to maintain constant output power over the laser’s lifetime. Coherent, Inc. Santa Clara, CA. www.coherent.com