As subject line says, I work in an electronics factory. We turn laminate copper + other raw materials (liquid gold, nickel, etc) into electronics-ready circuit boards. I have photos that I can post or send so y’all can make a hyper-realistic electronics factory, just ask!
Here’s the process in making a simple circuit board:
- Shearing. Shear the laminate copper sheet(s) together into layers.
- Drilling. Drill the appropriate holes, usually measured in mil (thousandths of an inch), into the laminate copper.
- Imaging. Take the laminate copper to an imaging room, in all (cancer-causing) yellow light, and image it, like a giant, copper photograph, and place an image of circuit direction onto it.
- Soldermask / photomask.
- Surface finish. This can be done via hot air, Entek, molded white tin, or nickel or gold. This protects the circuit board.
- Silkscreen. This is putting circuitboards into obnoxiously-huge printers, just like paper printers but larger, and using a carbon ink or a peelable mask.
- Fabrication. This may include more drilling, scoring (to fix them), routing, beveling, flash routes, or power sinks.
- Product completion. They’re usually cured so that they dry.
These curcuit boards are NOT fragile - you can drop them without issue or get a bit of rain on them without issue. The problems come due to lots of exposure to the elements (think a leaky roof dripping onto a circuit board or storage for months in a humid warehouse).
Ingredients in the actual product usually include copper. Electronic connectors can include silver, gold, a mix of 73% palladium 27% nickel and a mix of 60% palladium 40% silver. These are included in the circuit boards and typically stored in a liquid form. Circuit boards are put into large vats of liquid gold, liquid silver, or liquid palladium/nickel or palladium/silver.
That’s a sampling on circuit board creation. Next time can be photos of the process, and what an adventurous adventurer might find in a circuit board factory! CDDA can definitely get, ahem, creative with the scientific inventions since it’s based in a more advanced world than our own…
P.S. Circuit board factories are extremely flammable, but not as flammable as plastic factories, which are as flammable as dynamite.