Inside every modern computer or other data-processing wonder is a microprocessor bearing millions of transistors sculpted from silicon y chemicals and light. Silicon, the second most abundant element on Earth, is used extensively in transistors, integrated circuits, photoelectric devices, and other electronic devices. A pure crystal of silicon does not conduct electricity unless traces of other substances are diffused or doped onto it. Therefore silicon must be manufactured in a specific way in order for …
showed first 75 words of 633 total

showed last 75 words of 633 total
…to the gate. Aluminum is then spread over the surface. Masking and etching leaves three metal electrical conatacts. Up to five hundred chips may be created on a single wafer. Each is tested, and working chips are separated with a diamond-tipped saw and mounted in a plastic casing. They are connected to metal legs by fine gold wire. Tiny chips of silicone are connected forming complex circuits that are used in computers, satellites and spacecraft.