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MicrosoftPatent applicationChips & hardwareInterest 6/10

Microsoft patents circuit boards with tiny fluid channels to cool chips

Patent drawing
Patent drawing from the official filing.

Microsoft has filed a patent for a printed circuit board that includes a network of tiny fluid channels built into its layers. These channels sit directly against heat-producing components to carry away heat, while staying electrically separate from the board's wiring.

Why it mattersThis design could help keep high-performance computer parts cooler without adding bulky external cooling systems.

In the filing’s own words

A microfluidic printed circuit board (PCB) including: a plurality of layers; a heat-generating component attached to the microfluidic PCB; and a network of microfluidic passages applied to one or more of the plurality of layers and in thermally conductive contact with the heat-generating component, the network of microfluidic passages electrically isolated from traces of one or more of the plurality of layer

What exactly they claim (claim 1)

1. A microfluidic printed circuit board (PCB) comprising: a plurality of layers; a heat-generating component attached to the microfluidic PCB; and a network of microfluidic passages applied to one or more of the plurality of layers and in thermally conductive contact with the heat-generating component, the network of microfluidic passages electrically isolated from traces of one or more of the plurality of layers.

Facts

Company
Microsoft (Microsoft Technology Licensing, LLC)
Official title
MICROFLUIDIC PRINTED CIRCUIT BOARD COOLING
Publication number
US20260313782A1
Application number
19551008
Filed
Feb 26, 2026
Published
Oct 8, 2026
Inventors
2
Claims
20

Classified under

H05K 1/0212 Electricity & electronicsH05K 1/0272 Electricity & electronicsH05K 3/4688 Electricity & electronicsH05K 7/20327 Electricity & electronicsH05K 2201/064 Electricity & electronics
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.