▎ 摘　　要

NOVELTY - The ultra-thin soaking plate has a substrate, where a cover plate and the substrate are welded and connected to form a sealed steam cavity. The steam cavity is provided in a vacuum state, and is filled with a liquid working medium. A side of the substrate close to the steam cavity is etched with a groove array to form the capillary force. A side of the cover plate close to the steam cavity is etched with a round point array. The groove array is etched by an inner surface of the substrate as a flow passage and a capillary core. The surface treatment is provided with the super-hydrophilic modification, super-hydrophobic modification, water-based reduced graphene oxide treatment and water-based carbon nanotube treatment. A base plate and a cover plate are made of T1100 red copper or C5191 phosphor copper. A working medium is provided with the pure water, an ethanol aqueous solution and an n-butanol aqueous solution. USE - Ultra-thin soaking plate for use in a large area of a mobile phone and an electronic device. ADVANTAGE - The groove array etched by an inner surface of a substrate is used as a flow passage and a capillary core, and hence ensures improving the soaking property and provides an ultra-fine groove vertical array with a better directional heat transfer effect, and also removes the common preparation process for the red copper net capillary core and the sintered porous medium layer, thus reduces the additional interface thermal resistance of a plate with strong heat conducting ability, low cost and high cost performance and provides the plate with simple technique and easy operation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing an ultra-thin soaking plate. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an ultra-thin soaking plate.