Laser Holograms Could Revolutionize 3D Chip Manufacturing

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The approach uses lasers and holograms to detect misalignments as small as 0.017 nanometers. Researchers at the University of Massachusetts Amherst have developed a new method for aligning 3D semiconductor chips by shining a laser through concentric metalenses patterned onto the chips, creating a hologram. Their work, published in Nature Communications, could significantly reduce the [...]


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