Method and apparatus for laser scribing glass sheet substrate coatings

Patent · Tue May 06 00:00:00 EDT 2003

OSTI ID:1174307

Borgeson, Frank A.; Hanak, Joseph J.; Harju, Ricky S.; Helman, Norman L.; Hecht, Kenneth R.

A method and apparatus (42) for laser scribing coatings on glass sheet substrates by conveying the substrate adjacent a laser source (83) that provides a pulsed laser beam (84) with a wavelength at a near-infrared fundamental frequency and having a frequency in the range of 50 to 100 kilohertz and a pulse duration in the range of 8 to 70 nanoseconds, and by reflecting the beam by an XYZ galvanometer controlled mirror system (90) toward an uncoated surface of the substrate for passage therethrough to the coating on the other surface to provide overlapping ablations through the coating and scribing at a speed of at least 1000 millimeters per second.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC36-98GO10337
• Assignee: First Solar, LLC (Perrysburg, OH)
• Patent Number(s): 6,559,411
• Application Number: 09/928,203
• OSTI ID: 1174307
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE