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Polyimide

Microelectronics

Microelectronics

…The circuits are fabricated by vapor deposition of a uniform layer of metal (e.g., Au, Ag, Cu, Al) onto a flexible substrate such as PET, polyimide, PEN, or PMMA. The homogenized excimer beam is passed through a photomask, which is then re-imaged on this coated substrate. The high energy…

Whitepaper - USP Lasers Deliver Cleaner Cuts for Semiconductor Packaging.pdf

Whitepaper - USP Lasers Deliver Cleaner Cuts for Semiconductor Packaging.pdf

…Whitepaper September 20, 2017
www.coherent.com | tech.sales@coherent.com | 800-527-3786 | 408-764-4983
Figure 2. "Dark Yellow," 30 µm thick polyimide sheets scribed with a nanosecond and USP laser (in the UV). The
nanosecond laser processed at 66 mm/sec, while the USP laser cut at 193…

EU Photonics Flexible Displays.pdf

EU Photonics Flexible Displays.pdf

…reliability A number of rigid carrier separation techniques turn out to be unsuitable for mass production purposes. For examglass substrate spin-on polyimide +TFT array AMOLED + electrophoretic foil and driver foils laser lift-off freestanding flexible display Fig. 1 Schematics of flexible display…

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

…impact. This minimizes the heat affected zone, and leaves no recast material that
could require post-processing.
Figure 2. 30 µm thick polyimide sheets cut with a nanosecond and USP laser (in the UV). The nanosecond
laser processed at 66 mm/sec, while the USP laser cut at 193 mm/sec.…

COHR UVblade DS 0120 3.pdf

COHR UVblade DS 0120 3.pdf

…Laser Lift-Off (LLO) separation · Pulse on Demand (POD) · Unmatched beam utilization · Scalability in line lengths and energy density · Felxible system footprint APPLICATIONS · Laser Lift-Off Separation of Wafers and Displays · Unique Lift-Off Solution for Transparent and Colorless Polyimide (CPI)

COHR MedicalOCTprobe DS 0619.pdf

COHR MedicalOCTprobe DS 0619.pdf

…0.5 0.5 1.0 1.0
Coating Diameter (µm) 150 ±5 100 ±5 175 ±15 175 ±15
Coating Concentricity (µm) 1.5 1.5 5 5
Coating Material Polyimide Polyimide Low Index
Dual Acrylate
Dual Acrylate
Clad NA NA NA 0.46 (5%) 0.22 (50%)
Operating Temperature -65 to 300°C
(-85 to…

Coherent-new-lasers-improve-glass-cutting-methods wp.pdf

Coherent-new-lasers-improve-glass-cutting-methods wp.pdf

…tech.sales@coherent.com | 800-527-3786 | 408-764-4983
Figure 3. Example of mixed material cutting. This shows an edge view of 20 microns of polyimide on 0.5 mm glass, cut
with a Coherent Monaco femtosecond laser with 40 watts of average power and a pulse width ~350 fs. The surface

Photonics Spectra - March 2018

Photonics Spectra - March 2018

…"delicate"
and "tough" materials, which are finding
increasing use in microelectronic and display fabrication.
One such composite is polyimide on
glass, a common combination used in
OLED substrates. Filamentation cutting
is an effective technique for cutting glass

COHR CollimatingFiberAssembly DS 0619.pdf

COHR CollimatingFiberAssembly DS 0619.pdf

…SPECIFICATIONS
Wavelengths (nm) 350 to 1550
Connector FC/UPC; FC/APC; SC; LC; MU; SMA
Cable Types Hytrel; PTFE; Armor Monocoil; Polyimide
Cable Diameters 250 µm; 900 µm; 3 mm
Numerical Apertures 0.05 to 0.22
Core Diameters (µm) 2.5 to 10 (Single-mode)
Fiber Types…

CMM 10.4.indd

CMM 10.4.indd

…marking)
cannot reach the required level of accuracy for
this application (see figure 2).
Figure 2: "Dark Yellow," 30 µm thick polyimide sheets scribed with a nanosecond and USP laser (in the UV). The nanosecond laser processed at
66 mm/sec, while the USP laser cut at 193…

USP Lasers Semiconductor Packaging Whitepaper.pdf

USP Lasers Semiconductor Packaging Whitepaper.pdf

…Whitepaper September 20, 2017
www.coherent.com | tech.sales@coherent.com | 800-527-3786 | 408-764-4983
Figure 2. "Dark Yellow," 30 µm thick polyimide sheets scribed with a nanosecond and USP laser (in the UV). The
nanosecond laser processed at 66 mm/sec, while the USP laser cut at 193…

Photonik Feb2014.pdf

Photonik Feb2014.pdf

…transition from rigid glass based
displays to flexible polymer based displays
is the main benefit for display manufacturFigure
3: Polyimide coated display
glass after laser lift-off separation
ers in using temporary glass
carriers and laser lift-off
release because…