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Semiconductor manufacturing process - Coggle Diagram
Semiconductor manufacturing process
Wafer Manufacture
Foundation for semiconductor
Made of silicon
Heat sand
Melts
High purity
Solidified to a rod - an ingot
Sliced into a disc
Thinly sliced wafers
Polished
Removes defects
Becoming larger to contain more chips
Non-conductive
Oxidation
Makes wafer semiconductive
Spray H2O or O2 onto wafer
Create Oxide Layer
Protective
Stop current leakage
Photolithography
Draw circuit onto wafer
Photomask
Glass substrate
Computer design circuit pattern
Like camera film
Photoresist layer
sprayed onto oxide layer
light sensitive
Light shone on photoresist
Masked areas remain
unmasked areas "dissolved" down to oxide layer
Deposition & Ion Implantation
Adding new layers/stacking
Metal film
Insulation layer
Interconnecting layer
Separates metal layers
protects stacked metal layer circuits
Thin film
Repeat
photolithograpy
Etching
Add ions
Allows electrical current
Conductive
Draw circuit on it
Etching
remove unnecessary materials
Liquid
Dry etching
Vapour/Gas
Wet etching
oxide layer removed
Metal wiring
Electrical Die Sorting
Packaging
Design
cost
Power consumption
capacity
design software
IP
Licensed ARM architecture