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Imaging Of Overlay And Alignment Markers Under Opaque Layers Using Picosecond Laser Acoustic Measurements


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 Random-Access Memory (MRAM). The overlay and alignment of a lithographically defined pattern on top of the pattern and the underlying layer is fundamental to device operation in all multi-layer patterne... » read more

Week In Review: Manufacturing, Test


Government policy Hoping to resolve the ongoing worldwide chip shortage situation, the U.S. Department of Commerce late last month launched a “request for information (RFI)” initiative, which involved sending questionnaires to various semiconductor companies. The U.S. government is asking all parts of the supply chain – producers, consumers, and intermediaries – to voluntarily share in... » read more

Week In Review: Manufacturing, Test


Chipmakers and OEMs Intel has appointed Pat Gelsinger as its new chief executive, effective Feb. 15. Gelsinger will also join Intel’s board upon assuming the role. He will succeed Bob Swan, who will remain CEO until Feb. 15. Most recently, Gelsinger served as the CEO of VMware since 2012. He also spent 30 years at Intel, becoming the company’s first chief technology officer. The move fo... » read more