ptychographic X-ray laminography

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ptychographic X-ray laminography

Post by rjlittlefield »

The May 2022 issue of IEEE Spectrum describes an imaging technique that was new to me: "ptychographic X-ray laminography".

The entire article appears to be publicly available: https://spectrum.ieee.org/chip-x-ray .

Quick summary is that the authors are using a form of scanning X-ray diffraction, to image the internal structure of integrated circuits.

Caption from a video in the online article says
A fly-though of the top layers of an Intel 22-nanometer processor reconstructed from X-ray scans.

The video is 36 seconds, at https://www.youtube.com/watch?v=h_gbDn5Te70 .

Wikipedia has an extensive article about the wider class of techniques: https://en.wikipedia.org/wiki/Ptychography .

--Rik

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