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glass ablation

IndustrialUltrafast Whitepaper.pdf

IndustrialUltrafast Whitepaper.pdf

…intrinsically not a hot process. Also, when using ultrafast pulses, the laser processed material is removed in such a short timeframe that the ablated material carries away most of the energy before heat can spread into the surrounding material. Together, these effects result in significantly…

COHR WP Ablation of BioPolymers 193nm.pdf

COHR WP Ablation of BioPolymers 193nm.pdf

…mJ/cm2), the ablated surface shows foaming. This has been
reported for laser ablation of other biopolymers (e.g., collagen) and is suspected to be further evidence
here of sub-surface photoacoustic effects. Turning to possible photonic applications, several different
ablation patterns…

Ahead the New Glass Cutting COHR Rofin Whitepaper.pdf

Ahead the New Glass Cutting COHR Rofin Whitepaper.pdf

…radius circle) in thin
glass (50 µm thick) at a feed rate of 140 mm /sec.
Laser Ablation
Laser ablation relies on a completely different mechanism to process glass than CO2 and CO lasers,
which utilize thermal shock to create a crack. Rather, ablation is the actual removal of…

OLED Flexible Displays OPE2017 .pdf

OLED Flexible Displays OPE2017 .pdf

…and for laser lift-off to separate flexible display films from glass substrates. Other important applications are the use of ultra-short pulse (USP) lasers for circuit repair, both CO2 and USP lasers for film and foil ablation and glass cutting, and a variety of marking applications employing both…

07(IK14-10)p.53-57.fm

07(IK14-10)p.53-57.fm

…of glass. They also clearly
show that the ablation rates for borosilicate glasses are
much higher than for alkali-free glasses and vary significantly between specific glass types, with an average for the
fastest type of 0.28 µm per pulse. In contrast, the alkali-free
glass

Information Display Magazine September/October 2017, Vol. 33, No. 5 issue

Information Display Magazine September/October 2017, Vol. 33, No. 5 issue

…Laser Ablation
Laser ablation relies on a completely different
mechanism to process glass than do CO2
and
CO lasers, which utilize thermal shock to create a crack. Ablation is the actual removal of
material, with high precision, to create the
scribe. Ablation occurs…

Industrial Laser Solutions - September/October 2015

Industrial Laser Solutions - September/October 2015

…less effective and more costly as circuit dimensions shrink, so excimer laser ablation offers an attractive alternative in many cases. This article looks at the use of excimer laser ablation for drilling glass interposers, and reviews how excimers have been successfully employed in a turnkey…

x lase A4 4s 02 2013 lr 1 .pdf

x lase A4 4s 02 2013 lr 1 .pdf

INDUSTRIAL PICOSECOND FIBER LASERS X-LASE SERIES LOW-K GROOVING AI ON PET ABLATION SAPPHIRE SCRIBING GLASS-GLASSWELDING GLASS-METAL-GLASSWELDING Rofin Group company

LLO WavelengthAdvantage.pdf

LLO WavelengthAdvantage.pdf

…table below. Thin silicon device wafers separation LLO of thin silicon device wafers from their glass carriers is done by ablating the polymer layer through the glass wafer. After laser lift-off, the glass wafer can be easily removed from the silicon wafer, as shown in the figure above. Both the…

Excimer LLO 2014.pdf

Excimer LLO 2014.pdf

…Close to this threshold value, lift-off delamination was incomplete and uncontrollable. For the proposed
PI glass system, optimum lift-off conditions slightly above
the ablation threshold were achieved at a fluence value
of 235 mJ/cm2. Increasing the fluence to a value beyond
250…

CO Lasers from Lab to Fab

CO Lasers from Lab to Fab

…ultrasound drilling, or laser ablation.
As with cutting, hole drilling in glass
interposers is extremely sensitive to the
excess heat generated by the strong absorption of CO
2
laser light. The lower
absorption of 5 µm light in glass again
provides an advantage…

Industrial Laser Solutions - May/June 2015

Industrial Laser Solutions - May/June 2015

…qualities that result
from a non-thermal ablation effect. On a
femtosecond time scale, material ablation
works similarly to vaporization by breaking
of chemical bonds, but without a melting
step. Peripheral areas of the ablation zone
are hardly affected because the…

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