xeisback :
The word your looking for is a silicone wafer lol, the photolithography uses Ultra Violet Light that is VERY low wavelength, lower than 100 NM and then this allows to get to such small resolution your able to engrave TINY components into the wafer such as transistors onto them, which basically the transistor itself is just a semiconductor that has a N and P type, the N type is usually around the P type, the P type has holes in it, where when the emitter wants to get to the collector it can’t because the P type has holes, so when you apply some electricity in the base which is the P type bade the holes are filled with electrons and then the transistor is now “on” before it was off, now we know transistors we can create logic gates, Logic Gates are a fundamental principle in CPUs, theres 7 main logic gates being AND, OR, XOR, NOT, NAND, NOR, and XNOR, AND Gate Outputs a 1 only if all inputs are 1, OR Gate Outputs a 1 if at least one input is 1, NOT Gate (Inverter) Outputs the inverse of the input (0 becomes 1, and 1 becomes 0). NAND Gate Outputs a 0 only if all inputs are 1 (it's the inverse of the AND gate).
NOR Gate, Outputs a 1 only if all inputs are 0 (it's the inverse of the OR gate). XOR Gate Outputs a 1 if an odd number of inputs are
XNOR Gate Outputs a 1 if an even number of inputs are 1 (it's the inverse of the XOR gate
The NAND, NOR, XOR, and XNOR sre very crucial because they make storing memory, and computer logic completely possible!
2025-06-28 17:16:50