Computer Chips

Clicking a thumbnail on this web page (http://chemistry.beloit.edu/edetc/cineplex/cpu/index.html) shows a movie of that demonstration.

Computer processing units: 386, 486, 6804, and pentium in order of size.

Optical microscopy (color photographs) and electron microscopy (grayscale photographs) of a computer cpu chip. The scale is shown on each image.
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Lithography process. The final frame shows an ISFET used to measure pH.
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Lithography pattern.

Patterned silicon wafer.

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