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  • ICALEO 2011 Paper #M503 (Stability Limits of Laser Drilled Hole Arrays On Large Areas)

    Stability Limits of Laser Drilled Hole Arrays On Large Areas
    Authors:
    Nelli Hambach, Fraunhofer Institute for Laser Technology ILT; Aachen Germany
    Claudia Hartmann, Fraunhofer Institute for Laser Technology ILT; Aachen Germany
    Jens Holtkamp, Fraunhofer Institute for Laser Technology ILT; Aachen Germany
    Arnold Gillner, Fraunhofer Institute for Laser Technology ILT; Aachen Germany
    Presented at ICALEO 2011

    Large area micro drilling utilizing short pulsed solid state lasers is becoming an important manufacturing technique in the filtration technology. High transmittance and quality of the drilled holes are the main challenges. Roundness and diameter variation ...

    $28.00

  • ICALEO 2011 Paper #M502 (Micromachining on Thermal Barrier Coated Supperalloy Using a Nanosecond Fiber Laser)

    Micromachining on Thermal Barrier Coated Supperalloy Using a Nanosecond Fiber Laser
    Authors:
    Hongkun Lai, University of Michigan; -
    Huan Qi, Shanghai Jiaotong University, University of Michigan; Shanghai Peoples Republic of China
    Xinyang Shao, University of Michigan; -
    Yuezhou Wang, University of Michigan; -
    Jiayi Ding, University of Michigan; -
    Chuming Zhao, University of Michigan; -
    Presented at ICALEO 2011

    As the advance of gas turbine engines, turbine entry temperature has been continuously enhanced, which demands for high performance thermal barrier coatings and improved cooling arrangement on turbine blades. In recent y...

    $28.00

  • ICALEO 2011 Paper #M403 (Flexible and Precise Material Processing with Femtosecond Disc Lasers.)

    Flexible and Precise Material Processing with Femtosecond Disc Lasers.
    Authors:
    Friedrich Dausinger, Dausinger + Giesen Gmbh; Stuttgart Germany
    Steffen Sommer, Technologiegesellschaft für Strahlwerkzeuge mbH; Stuttgart Germany
    Presented at ICALEO 2011

    New dimensions in precision and the variety of machinable materials are enabled by the use of ultrashort laser pulses in material processing. Due to new powerful beam sources the processing efficiency has already reached an economic interesting state. Based on a regenerative disc amplifier the Dausinger + Giesen GmbH has developed a femtosecond source that is distinguished on its high flexibility and high pulse energy. Out of one res...

    $28.00

  • ICALEO 2011 Paper #M401 (Ultrafast Laser with High Energy and High Average Power for Industrial Micromachining: Comparison Ps-Fs)

    Ultrafast Laser with High Energy and High Average Power for Industrial Micromachining: Comparison Ps-Fs
    Authors:
    John Lopez, Alphanov, University of Bordeaux; Talence Cedex France
    Anne Lidolff, Alphanov; Talence France
    Martin Delaigue, Amplitude Systemes; Pessac France
    Clemens Hönninger, Amplitude Systemes; Pessac France
    Sandrine Ricaud, Amplitude Systemes; Pessac France
    Eric Mottay, Amplitude Systemes; Pessac France
    Presented at ICALEO 2011

    Pico and femtosecond lasers present a growing interest for surface structuring or thin film selective ablation applications such as flat panel display, photovoltaic or OLED industries. Indeed...

    $28.00

  • ICALEO 2011 Paper #M307 (Femtosecond Laser Patterning of Mo Thin Film on Flexible Substrate for CIGS Solar Cells)

    Femtosecond Laser Patterning of Mo Thin Film on Flexible Substrate for CIGS Solar Cells
    Authors:
    Qiumei Bian, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
    Xiaoming Yu, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
    Baozhen Zhao, Kansas State University; Mahattan KS USA
    Zenghu Chang, University of Central Florida, Kansas State University; Orlando FL USA
    Shuting Lei, Industrial and Manufacturing Systems Engineering; Manhattan KS USA
    Presented at ICALEO 2011

    Finding ways to scribe Mo back conductor plays an important role in the fabrication and assembly of CIGS thin film solar cells. Using a femtosecond (...

    $28.00

  • ICALEO 2011 Paper #M306 (Patterning and Marking of Textured and Untextured Silicon Solar Cells using a 532 Nm Picosecond Fiber Laser)

    Patterning and Marking of Textured and Untextured Silicon Solar Cells using a 532 Nm Picosecond Fiber Laser
    Authors:
    Tim D. Gerke, Fianium Inc.; Eugene OR USA
    Brian Baird, Summit Photonics; Lake Oswego OR USA
    Presented at ICALEO 2011

    Laser microprocessing is key to the development and manufacture of advanced silicon photovoltaics. In this paper a picosecond laser is used to pattern and mark the surface of both textured and non-textured passivated silicon photovoltaics as well as unpassivated silicon wafers. The laser is a master oscillator fiber power amplifier that provides 30 picosecond pulses at 532 nm with pulse energy up to 5 micro-Joules. We evaluate and compare techniques...

    $28.00

  • ICALEO 2011 Paper #M305 (Micromachining PV Materials with Time Domain Tailored Laser Pulses)

    Micromachining PV Materials with Time Domain Tailored Laser Pulses
    Authors:
    Mathew Rekow, ESI-PyroPhotonics Laser, Inc.; Fremont CA USA
    Richard Murison, ESI-PyroPhotonics Laser, Inc.; Montreal QC Canada
    C Dinkel, NRC Canada, Industrial Materials Institute-CAMM; -
    Tullio Panarello, ESI-PyroPhotonics Laser, Inc.; Montreal QC Canada
    S Nikumb, NRC Canada, Industrial Materials Institute-CAMM; -
    Walajabad Sampath, Colorado State University; Ft Collins CO USA
    Presented at ICALEO 2011

    For the CdTe P1 scribe, breaching of the SiO2 sodium barrier layer by the scribe laser, potentially exposes the CdTe film to Na from the soda lime glass s...

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  • ICALEO 2011 Paper #M304 (Laser Induced Backside Etching of Solar Glass by 1064nm Fiber Laser Irradiation)

    Laser Induced Backside Etching of Solar Glass by 1064nm Fiber Laser Irradiation
    Authors:
    Chao He, Beijing University of Technology; Beijing Peoples Republic of China
    Furong Liu, Beijing University of Technology; -
    Jianwen Yuan, Beijing University of Technology; -
    Jimin Chen, Beijing University of Technology; Beijing
    Presented at ICALEO 2011

    Textures on the surface of solar glass have the quality to improve the performance of itself and the further positive effect on the photovoltaics module. However, glass substrates cannot be etched directly by 1064 nm pulsed laser due to they are transparent to 1064 nm laser irradiation. Based on the principle of melt...

    $28.00

  • ICALEO 2011 Paper #M302 (Back End Monolithic Series Interconnection of a Thin Film PV Module By Laser Scribing and Screen Printing)

    Back End Monolithic Series Interconnection of a Thin Film PV Module By Laser Scribing and Screen Printing
    Authors:
    Johan Bosman, Energy Research Centre of the Netherlands; Eindhoven Netherlands
    Corné De Kok, Energy Research Centre of the Netherlands; Petten Netherlands
    Jochen Löffler, Energy Research Centre of the Netherlands; Petten Netherlands
    Laurie Wipliez, Energy Research Centre of the Netherlands; Petten Netherlands
    Martijn De Keijzer, Energy Research Centre of the Netherlands; Petten Netherlands
    Wim Soppe, Energy Research Centre of the Netherlands; Petten Netherlands
    Presented at ICALEO 2011

    The combination of back end la...

    $28.00

  • ICALEO 2011 Paper #M207 (Effect of Variable Power Control in Quasi-Simultaneous Fiber Laser Welding of Polymers)

    Effect of Variable Power Control in Quasi-Simultaneous Fiber Laser Welding of Polymers
    Authors:
    Petri Laakso, VTT Technical Research Center of Finland; Lappeenranta Finland
    Saara Ruotsalainen, VTT Technical Research Center of Finland; Lappeenranta
    Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta
    Mikko Rikkonen, Lappeenranta University of Technology; Lappeenranta
    Antti Salminen, Lappeenranta University of Technology, Machine Technology Centre Turku Ltd.; Lappeenranta
    Veli Kujanpää, VTT Technical Research Center of Finland, Lappeenranta University of Technology; Lappeenranta
    Presented at ICALEO 2011

    In tra...

    $28.00

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