A method to solve the directional limitation of heat spreader heat dissipation

Abstract

The present invention discloses a method for solving the directional limitation of heat dissipation of a heat spreader, comprising the following steps: cracking and gasifying the anti-oxidation film layer on the surface of the copper raw material until the anti-oxidation film on the surface of the copper raw material disappears completely, so that the original hydrophobic layer is converted into a hydrophilic layer, and the characteristics of the longitude and latitude of the copper powder or copper mesh are maintained without damage, the water in the heat source area is quickly gasified into water vapor, and quickly moves to the condensation layer along the surface of the copper raw material, and then becomes water and flows back to the heat source area, so that the cumulative height of the copper powder reaches more than 0.15mm or the copper mesh of more than two layers is hydrophilic, and the heat source diffuses the heat source in a non-directional manner under a vacuum state and produces an optimal capillary phenomenon. The method for solving the directional limitation of heat dissipation of a heat spreader described in the present invention overcomes the non-directional limitation caused by the diffusion of water vapor, allows water to produce an optimal capillary phenomenon, and allows the heat spreader to exert non-directional heat dissipation to meet the requirements of heat dissipation, bringing better prospects for use.

Description

Technical Field

[0001] The present invention relates to the field of heat spreader heat dissipation, and in particular to a method for solving the directional limitation of heat spreader heat dissipation. Background Art

[0002] The reason why water droplets can condense on lotus leaves is that there are fine and hard hairs on the surface of the lotus leaves, and the lotus leaves themselves are covered with biological wax, so the surface tension is very low. Water droplets can only slide on the surface of the hairs. It is usually called a super-strong structure at multiple nano and micro levels. This phenomenon can also be regarded as a confirmation of the hydrophobic layer, overcoming the problem of directional heat dissipation of the heat spreader: in the existing heat spreader heat dissipation structure, the diffusion of water vapor is directional. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of heat spreader heat dissipation.

[0003] The existing heat spreader heat dissipation has certain disadvantages when used. The existing technology uses a sintering method, in which the copper sheet and the copper mesh are sintered together in a vacuum sintering furnace. However, because the vacuum sintering furnace needs to be at a high temperature of 600-700°C to combine the copper sheet and the copper mesh, this method often destroys the copper mesh grid or eliminates the characteristics of the copper mesh grid. The copper mesh grid is one of the most required functions of the capillary phenomenon of the heat spreader, which is not conducive to people's use and has brought certain adverse effects to people's use process. To this end, we propose a method to solve the directional limitation of heat spreader heat dissipation. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a method for solving the directional limitations of heat dissipation of the heat spreader, overcoming the diffusion effect of water vapor to create non-directional limitations, and allowing water to produce optimal capillary phenomena, so that the heat spreader can fully exert non-directional heat dissipation to achieve the requirements of uniform heat dissipation, which can effectively solve the problems in the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a method for solving the directional limitation of heat dissipation of a heat spreader, comprising the following steps:

[0008] S1: Select a certain amount of helium. Helium is colorless, odorless, and non-flammable. Its content in air is about 5.2 parts per million and its chemical properties are inactive. Prepare a certain amount of nitrogen. Nitrogen is a colorless and odorless gas under normal conditions. Nitrogen is generally less dense than air and accounts for 78.08% of the total atmospheric volume.

[0009] S2: preparing a copper raw material, i.e., a heat spreader, wherein the surface of the copper raw material has an anti-oxidation film layer, which is a hydrophobic layer;

[0010] S3: Combustion treatment is performed using plasma radio frequency energy. A certain amount of helium and nitrogen are injected into the gas cavity, and then injected into an inert gas environment under certain low temperature conditions for a certain period of time.

[0011] S4: cracking and gasifying the anti-oxidation film on the surface of the copper raw material until the anti-oxidation film on the surface of the copper raw material disappears completely, so that the original hydrophobic layer is converted into a hydrophilic layer, and the characteristics of the warp and weft of the copper powder or copper mesh are maintained without being damaged;

[0012] S5: The water in the heat source area is quickly vaporized into water vapor and quickly moves to the condensation layer along the surface of the copper raw material, and then re-flows back to the heat source area as water, so that the copper powder accumulation height reaches more than 0.15mm or the copper mesh above the second layer becomes hydrophilic;

[0013] S6: The heat source diffuses non-directionally in a vacuum state and produces the best capillary phenomenon.

[0014] As a preferred technical solution, the radio frequency energy of the plasma in step S3 can reach more than 300 watts, and the air cavity capacity is 200 liters.

[0015] As a preferred technical solution, in step S3, the helium is injected at a rate of 50 to 100 ml / min, and the nitrogen is injected at a rate of 100 to 300 ml / min.

[0016] As a preferred technical solution, the inert gas environment in the S3 step is at a low temperature of 30° C. and the heating time is 3 minutes.

[0017] As a preferred technical solution, the capillary phenomenon allows water to work along the surface of the largest number of objects. The amount of the capillary phenomenon directly affects the rising speed of the water and the speed at which the water flows back.

[0018] As a preferred technical solution, the heat spreader needs to be applied to create a hydrophilic layer effect, and the copper mesh is woven into small squares in a warp and weft grid pattern, usually between #200 and #350.

[0019] As a preferred technical solution, the heat spreader is used to crack or gasify the surface antioxidant layer of the raw material before production begins, thereby adjusting the plasma radio frequency and inert gas selection to maintain the copper mesh warp and weft functions.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the present invention provides a method for solving the directional limitation of heat dissipation of the heat spreader, which has the following beneficial effects: the method for solving the directional limitation of heat dissipation of the heat spreader overcomes the diffusion effect of water vapor to make non-directional limitation, and allows water to produce the best capillary phenomenon, so that the heat spreader can give full play to the non-directional heat dissipation to achieve the requirement of uniform heat dissipation, and uses plasma radio frequency energy for combustion treatment. A certain amount of helium and a certain amount of nitrogen are injected into the air cavity, and injected into an inert gas environment under certain low temperature conditions. It runs for a certain time to crack and gasify the surface of the copper raw material. The anti-oxidation film layer is formed until the anti-oxidation film on the surface of the copper raw material disappears completely, so that the original hydrophobic layer is converted into a hydrophilic layer, and the characteristics of the longitude and latitude of the copper powder or copper mesh are maintained without damage. The water in the heat source area is quickly vaporized into water vapor and quickly moves to the condensation layer along the surface of the copper raw material, and then becomes water and flows back to the heat source area, so that the cumulative height of the copper powder reaches more than 0.15mm or the copper mesh with more than two layers becomes hydrophilic. The heat source diffuses the heat source in a non-directional manner under a vacuum state and produces the best capillary phenomenon. The heat dissipation structure of the entire heat spreader is simple, easy to operate, and the effect of use is better than that of the traditional method. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] A method for resolving the directional limitation of heat spreader heat dissipation includes the following steps:

[0024] S1: Select a certain amount of helium. Helium is colorless, odorless, and non-flammable. Its content in air is about 5.2 parts per million and its chemical properties are inactive. Prepare a certain amount of nitrogen. Nitrogen is a colorless and odorless gas under normal conditions. It is generally less dense than air and accounts for 78.08% of the total atmospheric volume.

[0025] S2: Prepare copper raw material, i.e., heat spreader, with an anti-oxidation film layer on the surface of the copper raw material, which is a hydrophobic layer;

[0026] S3: Combustion treatment is performed using plasma radio frequency energy. A certain amount of helium and nitrogen are injected into the gas cavity, and then injected into an inert gas environment under certain low temperature conditions for a certain period of time.

[0027] S4: cracking and gasifying the anti-oxidation film on the surface of the copper raw material until the anti-oxidation film on the surface of the copper raw material disappears completely, so that the original hydrophobic layer is converted into a hydrophilic layer, and the characteristics of the warp and weft of the copper powder or copper mesh are maintained without being damaged;

[0028] S5: The water in the heat source area is quickly vaporized into water vapor and quickly moves to the condensation layer along the surface of the copper raw material, and then re-flows back to the heat source area as water, so that the copper powder accumulation height reaches more than 0.15mm or the copper mesh above the second layer becomes hydrophilic;

[0029] S6: The heat source diffuses non-directionally in a vacuum state and produces the best capillary phenomenon.

[0030] Furthermore, in step S3, the radio frequency energy of the plasma can reach more than 300 watts, and the gas cavity capacity is 200 liters.

[0031] Furthermore, in step S3, the helium gas is injected at a rate of 50 to 100 ml / min, and the nitrogen gas is injected at a rate of 100 to 300 ml / min.

[0032] Furthermore, in step S3, the inert gas environment is at a low temperature of 30° C., and the heating time is 3 minutes.

[0033] Furthermore, capillary action allows water to work along the surface of most objects, and the amount of capillary action directly affects the speed at which water rises and the speed at which water flows back.

[0034] Furthermore, the heat spreader needs to create a hydrophilic layer effect. The copper mesh is woven into small squares in a warp and weft grid pattern, usually between #200 and #350.

[0035] Furthermore, before the start of production, the heat spreader is used to crack or gasify the surface antioxidant layer of the raw material, thereby adjusting the plasma radio frequency and inert gas selection to maintain the copper mesh warp and weft function.

[0036] Working principle: Select a certain amount of helium. Helium is colorless and odorless, and is a non-flammable gas. Its content in the air is about 5.2 parts per million, and its chemical properties are inactive. Prepare a certain amount of nitrogen. Nitrogen is a colorless and odorless gas under normal conditions, and its density is generally lower than that of air. Nitrogen accounts for 78.08% of the total atmospheric volume. Prepare copper raw materials, namely heat spreaders. The surface of the copper raw materials has an anti-oxidation film layer, which is a hydrophobic layer. It is burned by plasma radio frequency energy. In the air cavity, a certain amount of helium and a certain amount of nitrogen are injected. In an inert gas environment under certain low temperature conditions, it is run for a certain period of time to crack and gasify the anti-oxidation film layer on the surface of the copper raw materials until the anti-oxidation film on the surface of the copper raw materials disappears, and the original hydrophobic layer is converted into The hydrophilic layer can maintain the characteristics of the warp and weft of the copper powder or copper mesh without damage. The water in the heat source area is quickly vaporized into water vapor and quickly moves to the condensation layer along the surface of the copper raw material. Then it is converted into water and flows back to the heat source area, so that the cumulative height of the copper powder reaches more than 0.15mm or the copper mesh with more than two layers is hydrophilic. The heat source diffuses the heat source in a non-directional manner under a vacuum state and produces the best capillary phenomenon. The copper mesh is presented in the form of warp and weft, which is necessary for its function. In order to meet the performance requirements in subsequent product development and meet the standards for mass production of products, the surface antioxidant layer of the raw material is cracked / vaporized before production begins, so as to adjust the plasma radio frequency and inert gas selection to maintain the warp and weft function of the copper mesh.

[0037] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for solving the directional limitation of heat spreader heat dissipation, characterized by: The following steps are included: S1: Select a certain amount of helium. The helium is colorless, odorless, non-flammable, and has an air content of approximately 5.2 parts per million. It is chemically inactive. Prepare a certain amount of nitrogen. Nitrogen is a colorless, odorless gas under normal conditions. Nitrogen is generally less dense than air and accounts for 78.08% of the total atmospheric volume. S2: preparing a copper raw material, i.e., a heat spreader, with an anti-oxidation film layer on its surface, which is a hydrophobic layer; S3: performing a combustion treatment using plasma radio frequency energy, injecting a certain amount of helium and a certain amount of nitrogen into the air cavity, and injecting the inert gas environment under certain low temperature conditions for a certain period of time; S4: Cracking and vaporizing the anti-oxidation film on the surface of the copper raw material until the anti-oxidation film on the surface of the copper raw material disappears completely, transforming the original hydrophobic layer into a hydrophilic layer, and maintaining the characteristics of the warp and weft of the copper powder or copper mesh without damage; S5: The water in the heat source area is quickly vaporized into water vapor and quickly moves along the surface of the copper raw material to the condensation layer, and then re-forms into water and flows back to the heat source area, so that the accumulated height of the copper powder reaches more than 0.15mm or the copper mesh with more than two layers becomes hydrophilic; S6: The heat source diffuses the heat source in a non-directional manner under a vacuum state and produces the best capillary phenomenon; In step S3, the radio frequency energy of the plasma can reach more than 300 watts, and the gas chamber capacity is 200 liters; In step S3, the helium gas is injected at a rate of 50 to 100 ml / min, and the ammonia gas is injected at a rate of 100 to 300 ml / min; In the step S3, the inert gas environment is at a low temperature of 30°C and the holding time is 3 minutes; The capillary effect is to make water work along the surface of the largest object. The amount of capillary effect directly affects the speed at which water rises and flows back. The heat spreader needs to be applied to create a hydrophilic layer. The copper mesh is woven into a grid of small squares, usually between #200 and #350. The heat spreader is used to crack or gasify the surface antioxidant layer of the raw material before production begins, thereby adjusting the plasma radio frequency and inert gas selection to maintain the copper mesh warp and weft functions.