The story of a microchip doesn’t start with gold or lasers. It starts with .
A blast of deep ultraviolet light shot through the mask. Where the light hit the wafer, the "batter" hardened; where it was blocked, it remained soft. With a chemical wash, the soft parts vanished, leaving behind the skeletal remains of a circuit. Chip Manufacturing - How are Microchips made? | Infineon
Days passed. Layer upon layer of copper "highways" were laid down to connect the transistors. By the end, the wafer looked like a shimmering city seen from orbit. The story of a microchip doesn’t start with gold or lasers
Finally, the . A diamond saw screamed through the silicon, separating the wafer into hundreds of individual chips, each no bigger than a fingernail. Where the light hit the wafer, the "batter"
Silas watched the latest batch of silicon ingots—massive, shimmering cylinders of 99.9999% pure glass—being sliced into wafers as thin as a playing card. These were the canvases. To Silas, they looked like mirrors reflecting a digital future.
The process was a high-stakes dance called . First, a light-sensitive liquid—the photoresist—was spun onto the wafer, coating it in a perfect, glassy film. Then came the stencil, or "mask." It held the blueprint of a labyrinth so complex that if you enlarged it, it would look like a map of every street in the world overlapping ten times.
"Time for the coat," he muttered, adjusting his clean-room suit.