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Microsoft patents chip cooling that targets hot spots with fluid

Microsoft describes a cooling system for electronic chips that uses a tiny network of fluid channels. It measures the chip's temperature, finds the hottest area, and opens specific valves to direct cooling fluid directly over that spot.

Why it mattersThis approach could help keep powerful computer parts cooler by focusing cooling effort only where it is needed most.

In the filing’s own words

A thermal management device includes a microfluidic volume having a first peripheral side and a second peripheral side and including at least one thermal element, a first port to the microfluidic volume, a second port from the microfluidic volume, an inlet valve at the first port to the microfluidic volume, an outlet valve at the second port, and a valve piezoelectric element in mechanical communication with a portion of at least one of the inlet valve and the outlet valve to move at least the portion of the at least one of the inlet valve and the outlet valve and selectively allow fluid flow through the microfluidic volume.

What exactly they claim (claim 1)

1. A method of thermal management of an electronic component, the method comprising: providing an inlet manifold and an outlet manifold having a plurality of ports at a periphery of a microfluidic volume in thermal communication with a surface of an electronic component; measuring a plurality of temperatures on the surface of the electronic component; determining a hot spot of a higher temperature relative to another area of the surface of the electronic component; selecting at least a first port and a second port of the plurality of ports that produce a fluid path therebetween that crosses the hot spot; opening the first port of the manifold to allow fluid flow of a working fluid into the microfluidic volume; and opening the second port of the manifold to selectively flow the working fluid in the fluid path across the hot spot from the first port to the second port.

Facts

Company
Microsoft (Microsoft Technology Licensing, LLC)
Official title
SYSTEMS AND METHODS FOR MICROFLUIDIC THERMAL MANAGEMENT
Publication number
US20260293048A1
Application number
19684805
Filed
May 21, 2026
Published
Sep 24, 2026
Inventors
5
Claims
20

Classified under

H05K 7/20272 Electricity & electronicsF16K 99/0048 Mechanical engineeringG05D 23/1919 Physics & computingH05K 7/20281 Electricity & electronicsH05K 7/20509 Electricity & electronicsF16K 2099/0098 Mechanical engineering
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.