Laser system and method for processing a memory link with a burst of laser pulses having ultrashort pulse widths

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

6574250

APP PUB NO

20020003130A1

SERIAL NO

09757418

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A burst (50) of ultrashort laser pulses (52) is employed to sever a conductive link (22) in a nonthermal manner and offers a wider processing window, eliminates undesirable HAZ effects, and achieves superior severed link quality. The duration of the burst (50) is preferably in the range of 10 ns to 500 ns; and the pulse width of each laser pulse (52) within the burst (50) is generally shorter than 25 ps, preferably shorter than or equal to 10 ps, and most preferably about 10 ps to 100 fs or shorter. The burst (50) can be treated as a single 'pulse' by conventional laser positioning systems (62) to perform on-the-fly link removal without stopping whenever the laser system (60) fires a burst (50) of laser pulses (52) at each link (22). Conventional wavelengths or their harmonics can be employed.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ELECTRO SCIENTIFIC INDUSTRIES, INC.PORTLAND, OR402

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harris, Richard S Portland, OR 39 607
Sun, Yunlong Beaverton, OR 71 1499
Swenson, Edward J Portland, OR 36 671

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