Patent
Use of multiple laser sources for rapid, flexible machining and production of vias in multi-layered substrates
Roy D. Mead,Jeffrey W. Pierce +1 more
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In this paper, a laser via drilling system, and a method of use thereof, is provided, where the output beams from the independently controlled laser systems are combined using a beam splitter that combines the beams into single or multiple processing beams.Abstract:
A laser via drilling system, and a method of use thereof, is provided. The apparatus uses two or more laser systems to achieve processing parameter flexibility. The output beams from the independently controlled laser systems are combined using a beam splitter that combines the beams into single or multiple processing beams. The operational flexibility of the system can be further enhanced through the use of multiple EO modulators and a polarization sensitive beam splitter.read more
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Patent
Multi-output harmonic laser and methods employing same
TL;DR: In this paper, a set of wavelength converters are employed to convert the laser machining beams to harmonic wavelength outputs, thus reducing the risk of damage to the laser converters and enabling higher total average harmonic power to be generated from a single laser.
Patent
Methods and systems for semiconductor structure processing using multiple laser beam spots
Kelly J. Bruland,Stephen N. Swaringen,Brian W. Baird,Ho Wai Lo,David M. Beaverton Hemenway,Brady Nilsen,Clint Vandergiessen +6 more
TL;DR: In this article, the authors selectively irradiate structures on or within a semiconductor substrate using multiple laser beams, where the structures may be laser-severable conductive links, and the purpose of the irradiation may be to sever selected links.
Patent
Methods for synchronized pulse shape tailoring
Yunlong Sun,Lei Sun +1 more
TL;DR: A plurality of sub-resonators (12, 14 ), having different design configurations, share a common resonator section (18) such that the lasing action can be substantially synchronized to provide coherent laser pulses that merge the different respective pulse energy profile and/or pulse width characteristics imparted by the configurations of the sub-reonators.
Patent
Semiconductor structure processing using multiple laser beam spots
TL;DR: In this article, the first and second pulses from a first and a second pulsed laser beam are directed onto distinct structures in a row, in a direction substantially parallel to the lengthwise direction of the row.
Patent
Portable optical ablation system
Richard Stoltz,Jeff Bullington +1 more
TL;DR: In this article, an apparatus and method of surgical ablative material removal from an outside surface with a short optical pulse that is amplified and compressed using either an optically-pumped-amplifier and airpath between gratings compressor combination or a SOA and chirped fiber compressor combination, wherein the generating, amplifying and compressing are done within a portable system.
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Patent
Ultraviolet laser system and method for forming vias in multi-layered targets
Mark D. Owen,James N. O'brien +1 more
TL;DR: In this paper, the output of a continuously pumped, Q-switched, Nd:YAG laser (10) is frequency converted to provide ultraviolet light for forming vias (72, 74) in multi-layered targets (40).
Patent
Method employing UV laser pulses of varied energy density to form depthwise self-limiting blind vias in multilayered targets
TL;DR: In this article, the output of a continuously pumped, Q-switched, Nd:YAG laser is converted to provide ultraviolet light for forming vias in targets (40) having metallic layers (64,68) and a dielectric layer (66).
Patent
Dental procedures and apparatus using ultraviolet radiation
TL;DR: In this paper, the authors proposed an improved dental procedure and apparatus where ultraviolet radiation pulses are used to etch selectively both hard tissue and soft tissue in dental procedures, where there exists distinct ablation thresholds for hard and soft tissues which are dependent on the material being ablated for a given wavelength of the ultraviolet radiation.
Patent
Low cost, high average power, high brightness solid state laser
TL;DR: In this article, a seed laser beam with a short pulse duration was used to produce a high average power, high brightness solid state laser system, where a laser amplifier (24) amplifies the seed beam to produce an amplified pulse laser beam which is tightly focused to produce pulses with brightness levels in excess of 1011 Watts/cm2.
Patent
Laser system and method for plating vias
TL;DR: The output of a continuously pumped, Q-switched, Nd:YAG laser is frequency converted to provide ultraviolet light for plating internal wall surfaces (79, 126) of vias in multilayered electronic devices as mentioned in this paper.