Equation 5 · Part 1 · Comparing the Main Approaches to Chiplets and Advanced Packaging
Symbol Δ T_j
What this part means
Δ is part of the quantity the equation computes from the expression on the right.
Its job in the formula
Δ is part of the quantity the equation computes from the expression on the right.
Full expression→Symbol Δ T_j→Article meaning
The passage around this formula
The bill for that proximity arrives as heat, and it arrives in a specific, structural way rather than as a vague “3D runs hotter” intuition. A stack has exactly one face in contact with the package’s heat-removal path — typically the topmost die, under a lid or heat spreader — so the temperature rise at a given tier depends on everything the heat has to cross to reach that face: . where P is the power dissipated at that tier and each is the thermal resistance of one layer already between that tier and the heat sink — die bulk, bonding interface, or an intervening active tier. A tier two layers from the heat-removal face inherits the resistance of…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
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Sources cited in the article section
- [6] Chiplets: Piecing Together the Next Generation of Chips (Part I) ↗
- [11] Architecture, Dataflow and Physical Design Implications of 3D-ICs for DNN-Accelerators ↗
These citations provide research context; check each source for the exact claim it supports.