Intel Pentium Integrated Circuits

Pentium Pro 150MHz Microprocessor

Illustrated above is a digital image revealing surface detail present on a 150 MHz Pentium Pro microprocessor captured under differential interference contrast (DIC) illumination with an optical microscope operating in reflected light mode. The appearance of busses, registers, and cache units was enhanced by application of oblique auxiliary illumination with red, green, and blue gelatin filters.

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