Vapor Chamber
A flat metal cavity that transfers heat across a two-dimensional surface using phase change (evaporation and condensation). Its interior is evacuated and filled with a working fluid, giving it an extremely high effective in-plane thermal conductivity. It is widely used for heat dissipation in flagship smartphones.
Timeline (last 90 days)
A VC vapor chamber is a flat metal cavity that is evacuated internally and filled with a working fluid, using phase change (evaporation-condensation) to transfer heat across a two-dimensional surface, with an extremely high equivalent in-plane thermal conductivity, and it is currently the mainstay for peak heat dissipation from the SoC in flagship phones.
The VC plate itself requires a cavity of a certain thickness and a sealing structure, and is a relatively rigid whole that can hardly span a bending movable joint like a hinge, so on foldable screens it can usually only cover the mainboard area on one side.
The graphite tube solution is thinner and more flexible than a VC plate and can be routed along the hinge's bending path, but its heat transfer flux per unit cross-section is inferior to that of a VC plate.
Directing heat from one side to the other to use the larger body area for sharing is, for sustained-load scenarios such as long gaming sessions, video calls, or an external monitor, a more direct gain in heat-spreading area than simply stacking more VC plates.
All Facts (4)
A VC vapor chamber is a flat metal cavity that is evacuated internally and filled with a working fluid, using phase change (evaporation-condensation) to transfer heat across a two-dimensional surface, with an extremely high equivalent in-plane thermal conductivity, and it is currently the mainstay for peak heat dissipation from the SoC in flagship phones.
50%UnverifiedThe VC plate itself requires a cavity of a certain thickness and a sealing structure, and is a relatively rigid whole that can hardly span a bending movable joint like a hinge, so on foldable screens it can usually only cover the mainboard area on one side.
50%UnverifiedThe graphite tube solution is thinner and more flexible than a VC plate and can be routed along the hinge's bending path, but its heat transfer flux per unit cross-section is inferior to that of a VC plate.
50%UnverifiedDirecting heat from one side to the other to use the larger body area for sharing is, for sustained-load scenarios such as long gaming sessions, video calls, or an external monitor, a more direct gain in heat-spreading area than simply stacking more VC plates.
50%