BUILDING THE LAYERS
Put the steps in order
Three real layer-building flows: isolation, copper wiring, and a transistor gate. Each has steps that only work in one order. Tap them in sequence.
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CHALLENGE COMPLETE
🧱 Layer by layer, in order
+50 XP
Each step sets up the next one: you grow or deposit, then etch, then polish flat, and skipping ahead breaks the stack.