This is the substrate that microchips are lithographically printed on. They’re mass produced in this wafer form, and then later cut down, and packaged into dies. These particular wafers contain mostly RAM. They were manufactured for Ford Aerospace back in the mid 1980s.

If you view this image in it’s original size, you can zoom all the way in, and resolve the details of individual transistors. Just a year or two later, that would no longer have been possible without much more powerful microscopes. The transistors etched onto these wafers are positively huge by modern standards…hundreds, or thousands of times larger.

I find the closeup look to be, by far, the more interesting of the two.

via Flickr


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