This is a fragment of a small silicon wafer, on which are etched several integrated circuitsl, which performed the basic logic of the Apollo Guidance Computer. Creating an integrated circuit was a multi-step proces. A whole set of circuits were made on a piece of very pure silicon, by a photo-reduction process. The individual circuits were then tested, and the wafer was scored and the chips broken off ("diced"). Finally, gold leads were attached and the device was packaged to protect it.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type EQUIPMENT-Electronics Manufacturer Philco Corp.
 Dimensions Approximate: 5.1cm (2 in.)
 Materials Silicon
 Inventory Number A20181254000 Credit Line Gift of David Chester Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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