Are you familiar with the eight major processes in semiconductor manufacturing?
1. Wafer Processing
Refining sand into single crystal silicon wafers.
2. Wafer Oxidation
Forming a protective film on the wafer through thermal oxidation or chemical vapor deposition.
3. Photolithography
Printing circuit patterns onto the wafer through coating, exposure, and development.
4. Etching
After the circuit pattern is printed, using dry etching or wet etching to remove excess material.
5. Thin Film Deposition
Using physical or chemical vapor deposition to layer micro-devices on the chip, building up the structure.
6. Interconnection
Connecting each individual component using metal wiring and contact holes to achieve power and signal intercommunication.
7. Testing
Testing the wafer and post-packaging to check the yield of the chips.
8. Packaging
Cutting large wafer chips into individual chips, sealing them on a package substrate with wire bonding for protection.