|FIANIUM LTD. Patent applications|
|Patent application number||Title||Published|
|20130327389||Chalcopyrite -Type Semiconductor Photovoltaic Device - A method comprising providing a layer structure for a photovoltaic device, the layer structure comprising an electrode, a light absorber comprising a layer of chalcopyrite-type semiconductor material, such as copper indium gallium diselenide, disposed on the electrode and a transparent electrode disposed on the light absorber. The method also comprises delivering a spatially-shaped picosecond pulsed laser beam so as to remove material from a region of the transparent electrode so as to expose at least a portion of the light absorber.||12-12-2013|
|20130301663||Lasers and Amplifiers Having Tapered Elements - A laser system for generating optical pulses at an operating wavelength of the laser system. The system has an optical resonator comprising first and second reflectors, and a tapered optical fiber disposed between the first and second reflectors. The tapered optical fiber has a core which has a tapered input section which tapers from single mode to multimode at the laser operating wavelength, an inner section of substantially constant diameter capable of supporting multiple modes at the laser operating wavelength and a tapered output section which tapers from a first diameter to a second diameter that is smaller than the first diameter.||11-14-2013|
|20130244449||Methods and Apparatus For Patterning Photovoltaic Devices and Materials For Use With Such Devices - A picosecond laser beam shaping assembly is disclosed for shaping a picosecond laser beam for use in patterning (e.g., scribing) semiconductor devices. The assembly comprises a pulsed fibre laser source of picosecond laser pulses, a harmonic conversion element for converting laser pulses at a first laser wavelength having a first spectral bandwidth to laser pulses at a second laser wavelength having a second spectral bandwidth, and a beam shaping apparatus for shaping the laser beam at the second laser wavelength, the beam shaping apparatus having a spectral bandwidth that substantially corresponds to the second spectral bandwidth so as to produce a laser beam having a substantially rectangular cross-sectional profile.||09-19-2013|
|20110007760||Source of Femtosecond Laser Pulses - A source of femtosecond laser pulses (||01-13-2011|
Patent applications by FIANIUM LTD.