How does a silicon wafer become a working packaged chip?
One connected journey from design to a finished system — tying together photolithography, etching, deposition, doping, and packaging. Follow it end to end, or jump into any step.
The journey, step by step
Design becomes a pattern, the pattern shapes material, material becomes an electrical device, dies are cut and packaged, and the result becomes part of a system.
- Design
- Wafer
- DepositionTopic
- PhotolithographyTopic
- EtchingTopic
- DopingTopic
- Cleaning / processing
- Repeat many times
- Interconnects
- Wafer test
- Dicing
- PackagingTopic
- Final test
- System
A conceptual learning map — real manufacturing flows are far more complex, repeat and interleave many of these steps, and vary by process and product. Steps marked Topic open a full learning topic.
New to semiconductors? Start here
Four topics, in order, take you from patterning to a packaged part. If you’re brand new, skim the fundamentals first, then follow this path.
Going deeper? An engineering path
A broader route for advanced learners, linking existing Semitree content from concepts through to yield.
Connect to the rest of Semitree
Every step in the journey draws on equipment, materials, design, metrology, and a global supply chain.
Can you explain it?
A quick self-reflection — not a graded quiz. If a question stumps you, revisit the linked topic.
Why is photolithography required?
Revisit Photolithography. Open topic →
What is the difference between deposition and etching?
Revisit Etching & Deposition. Open topic →
Why is doping required?
Revisit Doping. Open topic →
What is the difference between a die and a package?
Revisit Chip Packaging. Open topic →
Why does advanced packaging use chiplets?
Revisit Chip Packaging (advanced packaging). Open topic →
Why are lithography, etching and deposition repeated many times?
Revisit Photolithography and the journey map above. Open topic →
How does manufacturing affect yield?
Revisit Etching & Deposition and the yield tool. Open topic →
Why does packaging affect system performance?
Revisit Chip Packaging. Open topic →
The big picture: design → pattern → material → electrical property → device → die → package → system. That is how a silicon wafer becomes a working packaged chip.