Server packaging for immersion cooling with local acceleration

A server, comprising:

• a server chassis securing a server board within the server chassis;
• and
• a cooling unit, comprising:
• a channel frame assembled to the server chassis to form a region enclosing an electronic chip that is disposed on the server board;
• an inlet port coupled to a first side of the channel frame to receive a two-phase coolant fluid;
• an outlet port coupled to a second side of the channel frame for the two-phase coolant fluid in either a liquid phase or a vapor phase to exit the channel frame;
• an internal structure disposed on an inner surface of the channel frame between the inlet port and the outlet port, wherein the internal structure guides the two-phase coolant fluid along a surface of the electronic chip, wherein the electronic chip transfers heat to the two-phase coolant fluid to cause a portion of the two-phase coolant fluid to change from a liquid to a vapor phase;
• and
• a flexible skirt surrounding the channel frame and in contact with the server board, wherein the flexible skirt minimizes leakage of the two-phase coolant through gaps between the cooling unit and the server board.

A cooling system, comprising:

• one or more servers, each server of the one or more servers comprising:
• a server chassis securing a server board within the server chassis;
• and
• a cooling unit, comprising:
• a channel frame assembled to the server chassis to form a region enclosing an electronic chip that is disposed on the server board;
• an inlet port coupled to a first side of the channel frame to receive a two-phase coolant fluid;
• an outlet port coupled to a second side of the channel frame for the two-phase coolant fluid in either a liquid phase or a vapor phase to exit the channel frame;
• an internal structure disposed on an inner surface of the channel frame between the inlet port and the outlet port, wherein the internal structure guides the two-phase coolant fluid along a surface of the electronic chip, wherein the electronic chip transfers heat to the two-phase coolant fluid to cause a portion of the two-phase coolant fluid to change from a liquid to a vapor phase;
• and
• a flexible skirt surrounding the channel frame and in contact with the server board, wherein the flexible skirt minimizes leakage of the two-phase coolant through gaps between the cooling unit and the server board.