[Glean] 2.5D and 3D Interposer
2.5D and 3D Interposer
Introduction1
Interposers are wide, extremely fast electrical signal conduits used between die in a 2.5D configuration. They can be made of both silicon and organic materials.
The upside is that the interposers provide a much larger channel for electrical signals, reducing the amount of energy needed to drive those signals, minimizing resistance/capacitance (RC) delay, and shortening the distance between various IP blocks in a system and the memories associated with them. Current interposers incorporate through-silicon via for transmission of signals.
Structure
Below is the structure of 2.5D circuit with a interposer.
And the figure below compares the difference of 2.5D chip and 3D chip.
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Interposers, https://semiengineering.com/knowledge_centers/packaging/advanced-packaging/2-5d-ic/interposers/ ↩