Hewlett-Packard Integrated Circuits

PA-7300LC Microprocessor

The digital image presented above is a reflected light micrograph of the Hewlett-Packard PA-7300LC microprocessor captured with differential interference contrast (DIC) optics. In order to enhance the visualization of busses, registers, and memory caches, the chip was illuminated obliquely using purple and yellow gels with fiber optics light guides and tungsten-halogen illumination.

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