US 11,792,956 B1
Bellows for immersion cooling
Nihal Joshua, Niagara Falls (CA); Ioannis Manousakis, Zürich (CH); and Jimil Shah, Wylie, TX (US)
Assigned to MTS IP Holdings Ltd, George Town (KY)
Filed by MTS IP Holdings Ltd, Grand Cayman (KY)
Filed on May 17, 2023, as Appl. No. 18/318,905.
Application 18/318,905 is a continuation of application No. PCT/US2023/067056, filed on May 16, 2023.
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20327 (2013.01) [H05K 7/203 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method of cooling semiconductor dies in a tank of a two-phase immersion cooling system, the method comprising:
receiving heat from the semiconductor dies into a coolant liquid within the tank, the coolant liquid filling a portion of the tank below an air space occupying a top region of the tank;
receiving gas from the air space into a volume enclosed by a container of a bellows assembly in response to an increase in pressure of the gas, wherein the bellows assembly includes a port fluidically coupled to the air space and the container has a first surface spanning a first surface area that encloses the volume;
deforming a first wall of the container in a first direction to increase the volume while receiving the gas, wherein the first wall comprises a polymer and has a second surface spanning a second surface area;
expelling the gas from the volume in response to a decrease in pressure of the gas; and
deforming the first wall of the container in a second direction opposite the first direction to decrease the volume while expelling the gas, wherein:
the container includes a second wall having a third surface spanning a third surface area, the second wall being separated from the first wall by at least a portion of the volume and oriented approximately parallel to the first wall when the volume is not under pressure or vacuum,
the second surface area and the third surface area comprise a majority of the first surface area,
the container further includes a third wall extending between and connected to the first wall and the second wall, and
the bellows assembly further includes at least one hardware element attached to at least one of the first wall, the second wall, and the third wall to mount the container in an orientation such that at least one of the first wall and the second wall deforms or deform outward from a center of the container without external hinderance when the volume is under pressure and deforms or deform inward without external hinderance when the volume is under vacuum.