Method of die singulation using laser ablation and induction of internal defects with a laser

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United States of America Patent

PATENT NO 9165832
SERIAL NO

14320419

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Abstract

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A method and system of hybrid laser dicing are described. In one embodiment, a method includes focusing a laser beam inside a substrate in regions between integrated circuits, inducing defects inside the substrate in the regions. The method involves patterning a surface of the substrate with a laser scribing process in the regions after inducing the defects in the substrate. The method further involves singulating the integrated circuits at the regions with the induced defects. In another embodiment, a system includes a first laser module configured to focus a laser beam inside a substrate in regions between integrated circuits, inducing defects inside the substrate in the regions. A second laser module is configured to pattern a surface of the substrate with a laser scribing process in the regions after inducing the defects. A tape extender is configured to stretch tape over which the substrate is mounted, singulating the integrated circuits.

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Patent Owner(s)

  • APPLIED MATERIALS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eaton, Brad Menlo Park, US 112 1447
Kumar, Ajay Cupertino, US 489 10777
Lei, Wei-Sheng San Jose, US 131 1181
Lerner, Alexander San Jose, US 63 1093
Papanu, James S San Rafael, US 79 2765
Park, Jungrae Santa Clara, US 33 138

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