Semiconductor processing operators make wafers and microcircuits. These parts do the thinking for computers and other digital devices.
It's sometimes difficult to fathom that the sand underneath your toes at your favorite beach is directly related to computer technology. That's because sand is the basis for silicon, and silicon is the primary ingredient used to make semiconductors. Semiconductors are a key component of computers and other electronic devices.
Semiconductor microchips are integrated circuits. Making them is a complex task with many steps. Operators may work at any step along the way. Operators work in clean rooms and wear protective gear. Their clothing protects microelectronic products from air and dust particles. When making wafers, operators grow crystals from silica and melt crystals into ingots. They saw ingots into slices that are called wafers. Wafers look like compact disks. Operators use wafers to create circuits. After they make the circuits, they cut wafers into microchips about the size of postage stamps.
After taking air showers and getting into their clean room gear, operators study work orders and instructions. To make semiconductors, they use tweezers or other tools to load wafers into holders. They then place holders into processing machines. Operators adjust valves, open and close switches, and push buttons to turn machines on and off. After they begin the processing cycle, they frequently look at products through microscopes. Using photo-like techniques, operators etch circuits onto wafers. They grind, polish, and clean the circuits. Next, they use chemical solvents or gases to remove unwanted materials. Operators dry circuits using drying machines. They inspect each wafer for surface defects. When testing circuits, operators measure them to see that they meet semiconductor standards. Operators cut finished wafers into chips. They count, sort, and weigh these products. They stamp identification codes into each one. They package and seal them for shipping. Operators also keep records of each step in the process.