• George Oulundsen

    George Oulundsen is senior director and general manager at Coherent Corp.

    FIGURE 1. Cross-sections of CO laser-drilled vias in FR4 are shown. For the 9 µm copper, the pulse format was 1 kW peak power, 3 µs FWHM pulse, followed by four 550 W peak, 0.5 µs FWHM pulses. For the 3 µm copper, pulse format was 950 kW peak power, 2 µs FWHM pulse, followed by two 400 W peak, 0.4 µs FWHM pulses.
    The carbon monoxide (CO) laser, operating at 5 to 6 µm, plays an important role in future applications in microelectronics manufacturing.
    Nov. 20, 2019
    FIGURE 1. SmartCleave cutting supports curves and cutouts.
    Filamentation and separation methods are emerging as important tools.
    July 1, 2019
    FIGURE 1. Examples of Rayleigh, Brillouin, and Raman scattering peaks relative to the wavelength of the input light signal.
    Distributed temperature sensing (DTS) is the most common use of optical fiber-based sensors in oil recovery; the fibers are highly specialized and must withstand the high-temperature...
    Jan. 16, 2015