Invention Grant
US09245803B1 Hybrid wafer dicing approach using a bessel beam shaper laser scribing process and plasma etch process 有权
混合晶圆切片方法采用贝塞尔光束成形机激光划线工艺和等离子体蚀刻工艺

Hybrid wafer dicing approach using a bessel beam shaper laser scribing process and plasma etch process
Abstract:
Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. In an example, a method of dicing a semiconductor wafer having a plurality of integrated circuits involves forming a mask above the semiconductor wafer, the mask composed of a layer covering and protecting the integrated circuits. The mask is then patterned with a Bessel beam shaper laser scribing process to provide a patterned mask with gaps, exposing regions of the semiconductor wafer between the integrated circuits. The semiconductor wafer is then plasma etched through the gaps in the patterned mask to singulate the integrated circuits.
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