Hotspot cooling with jumping-drop vapor chambers

Journal Article (Journal Article)

Hotspot cooling is critical to the performance and reliability of electronic devices, but existing techniques are not very effective in managing mobile hotspots. We report a hotspot cooling technique based on a jumping-drop vapor chamber consisting of parallel plates of a superhydrophilic evaporator and a superhydrophobic condenser, where the working fluid is returned via the spontaneous out-of-plane jumping of condensate drops. While retaining the passive nature of traditional vapor-chamber heat spreaders (flat-plate heat pipes), the jumping-drop technique offers a mechanism to address mobile hotspots with a pathway toward effective thermal transport in the out-of-plane direction.

Full Text

Duke Authors

Cited Authors

  • Wiedenheft, KF; Guo, HA; Qu, X; Boreyko, JB; Liu, F; Zhang, K; Eid, F; Choudhury, A; Li, Z; Chen, CH

Published Date

  • April 3, 2017

Published In

Volume / Issue

  • 110 / 14

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.4979477

Citation Source

  • Scopus