1. Wet wash
2. Lithography
3. Ion implantation
4. Dry etching
5. Wet etching
6. Plasma rinse
Step 7 Heat treatment
8. Chemical vapor deposition
9. Make wafers
10. Wafer coating
11. Electroplating treatment
12. Wafer testing
13. Encapsulation
Yes. Mechanical majors are generally engaged in chip manufacturing.