US Patent No. 10,798,848

PASSIVE THERMAL MANAGEMENT SYSTEM WITH PHASE CHANGE MATERIAL


Patent No. 10,798,848
Issue Date October 06, 2020
Title Passive Thermal Management System With Phase Change Material
Inventorship Andrew Douglas Delano, Woodinville, WA (US)
Gregory Allen Nielsen, Kirkland, WA (US)
Assignee Microsoft Technology Licensing, LLC, Redmond, WA (US)

Claim of US Patent No. 10,798,848

1. A computing device comprising:a heat generating component;
a heat spreader physically connected to the heat generating component, the heat spreader comprising a first outer surface and a second outer surface, the second outer surface being closer to the heat generating component than the first outer surface is to the heat generating component;
a first layer of phase change material directly on at least a first portion of the first outer surface, the second outer surface, or the first outer surface and the second outer surface of the heat spreader; and
a second layer of phase change material directly on at least a second portion of the first outer surface of the heat spreader such that the first layer and second layer are laterally adjacent to one another, wherein the first layer of phase change material and the second layer of phase change material have different melting temperatures, different latent heats of fusion, different densities, or any combination thereof.