Optically opaque materials present a series of challenges for alignment and overlay in the semi-damascene process flow or after the processing of the magnetic tunnel junction (MTJ) of a Magnetic ...
(Nanowerk Spotlight) Liquid crystals (LCs) are optically anisotropic materials, and they are widely used in electro-optical display technology, known as liquid crystal displays (LCDs). Understanding ...
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Atomic-scale chip alignment: Laser holograms could set new standard for 3D semiconductor overlay accuracy
Scientists at the University of Massachusetts Amherst have introduced a novel method for aligning layers in chips using lasers and metalenses. The new technique is claimed to achieve accuracy down to ...
Forward-looking: Researchers at the University of Massachusetts Amherst have developed a laser-based technique to align 3D semiconductor chips, potentially overcoming a longstanding challenge in chip ...
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