Mask inspection

In microtechnology, mask inspection or photomask inspection is an operation of checking the correctness of the fabricated photomasks, used, e.g., for semiconductor device fabrication.[1]

Modern technologies for locating defects in photomasks are automated systems that involve scanning electron microscopy and other advanced tools.[2]

Mask data inspection

The term "mask inspection" may also informally refer to mask data inspection step performed before actual writing the real mask.[3] Other methods of inspection use specially constructed light microscope systems such as are available from Probing Solutions Inc. These rely on white light, typically optimized at approximately 538 nM and use incident bright and dark field as well as transmitted bright and dark field illumination to see pin holes, edge defects and many forms of contamination and substrate defects.

gollark: Maybe libdatatape would be useful if I swap out the random proprietary (and mostly made by someone else and tweaked by me because it did integers wrong) serialization format for CBOR, or let you provide your own.
gollark: I think a big one is RXI's JSON thing, although that got obsoleted on newer versions by `textutils.unserialiseJSON` or whatever it is.
gollark: The particularly good ones are generally from other people.
gollark: Well, I have some libraries, I don't think they're mostly all that *useful*.
gollark: `a_function("string with spaces")` or even `a_function "string with spaces"` which is neat.

References

  1. "VLSI technology: fundamentals and applications", by Yasuo Tarui, 1986, ISBN 3-540-12558-2, Chapter 4: "Mask Inspection Technology"
  2. ZEISS Webpage offering automated mask repair tools
  3. "Design for manufacturability and yield for nano-scale CMOS", by Charles Chiang, Jamil Kawa, 2007, ISBN 1-4020-5187-5, p. 237


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