engineering recuitment BHEL Engineer Trainee Mock Test 2025 Electronic Devices Device Technology CMOS Process Flow
In the Twin-tub process of CMOS fabrication following steps are involved
i. Gate and Field Oxide formation
ii. Metallization
iii. N-well and P-well formation
iv. Source and Drain implantation1
ii → iv → iii → i
2
i → iii → iv → ii
3
iii → i → iv → ii
4
None of the above