Method and apparatus for improved laser scribing of opto-electric devices

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United States of America Patent

PATENT NO 8735772
SERIAL NO

13031232

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Abstract

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Disclosed are laser scribing systems for laser scribing semiconductor substrates with backside coatings. In particular these laser scribing systems laser scribe opto-electric semiconductor wafers with reflective backside coatings so as to avoid damage to the opto-electric device while maintaining efficient manufacturing. In more particular these laser scribing systems employ ultrafast pulsed lasers at wavelength in the visible region and below in multiple passes to remove the backside coatings and scribe the wafer.

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Patent Owner(s)

  • ELECTRO SCIENTIFIC INDUSTRIES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chacin, Juan San Jose, US 9 955
Chyr, Irving Fremont, US 3 34
Halderman, Jonathan Santa Clara, US 10 60

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