US 12,169,180 B2
Optical leak detection of liquid cooling components within an electronic system
Prabhakar Subrahmanyam, San Jose, CA (US); Ying-Feng Pang, San Jose, CA (US); Yi Xia, Campbell, CA (US); Mark Bianco, Redwood City, CA (US); and Victor Polyanko, Kent, WA (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,563.
Prior Publication US 2021/0116391 A1, Apr. 22, 2021
Int. Cl. G01N 21/952 (2006.01); H05K 1/02 (2006.01); H05K 7/20 (2006.01)
CPC G01N 21/952 (2013.01) [H05K 1/0203 (2013.01); H05K 7/20218 (2013.01); H05K 2201/10106 (2013.01); H05K 2201/10151 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a printed circuit board with electronic components mounted thereon, at least one of the electronic components coupled to a liquid cooling system;
a light source; and
a plurality of photosensitive elements, the light source to illuminate a region of the printed circuit board, wherein a first one of the photosensitive elements is to detect a first reflection from the region corresponding to a lack of a presence of coolant from the liquid cooling system in the region, and wherein a second one of the photosensitive elements spaced apart from the first one of the photosensitive elements is to detect a second reflection from the region corresponding to the presence of the coolant in the region.