Liquid immersion-cooled electronic device and liquid immersion-cooled processor module

An electronic device which is directly immersed and cooled in a cooling liquid in a cooling device, comprising:

• a carrier substrate which includes a voltage input end for supplying a DC voltage for the electronic device, the voltage input end being electrically connected to a voltage output end of a power supply unit;
• a plurality of module connectors which are arranged on one surface of the carrier substrate;
• a plurality of processor modules each of which has a module connector plug electrically coupled to each of the plurality of module connectors;
• and
• a support member which supports the carrier substrate to be positioned in an upper section of the power supply unit arranged on a bottom section of a cooling tank included in the cooling device, when the electronic device is electrically connected to the power supply unit, and wherein
• the processor module includes
• a first circuit substrate and a second circuit substrate each of which has a processor mounting area and a memory mounting area on one surface thereof, each of which has at least one processor mounted in the processor mounting area, and each of which has a plurality of comb-like arranged memory modules in the memory mounting area, and which are in a state that the one surface of the first circuit substrate and the one surface of the second circuit substrate are combined face-to-face, and
• at least one connector which electrically connects between the first circuit substrate and the second circuit substrate, and
• the first circuit substrate and the second circuit substrate are positioned in manners, that the processor mounting area and the memory mounting area of the first circuit substrate are placed face-to-face respectively with the processor mounting area and the memory mounting area of the second circuit substrate, and that end parts of the plurality of comb-like arranged memory modules of the first circuit substrate and end parts of the plurality of comb-like arranged memory modules of the second circuit substrate are alternately arranged with clearances made between adjacent memory modules,
• wherein the support member includes a backboard or a frame structure on which the carrier substrate is fixed, and
• wherein the backboard or the frame structure is slidably supported by a plurality of support columns which stand up and are vertically fixed in the cooling tank.