1. Extract silica from sand. 2. Reduce silicon dioxide to silicon (chemically pure). 3. Cut the pure silicon into pieces (size 0.4cm x 0.4cm x 0.05cm) with a kitchen knife. 4. Draw the layout of 10 transistors on the silicon surface with a laser beam of 0.00 1 nm under an electron microscope (you don't need to draw it yourself, just download a data packet online, and the computer will execute it by itself, with the data of about 3000G) 5. Etch it with chemical reagents. 6. Make the circuit board and solder the pins. 7. Just cover the shield. 8. Plug in the suitcase.