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A super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging

An epoxy molding compound and super heat-resistant technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem of poor mixing ability, many solid fillers in epoxy molding compound, and the inability to effectively solve the dispersion uniformity of raw materials and other problems, to achieve the effect of increasing heat resistance, raising glass transition temperature, and improving operability

Active Publication Date: 2021-10-26
江苏中科科化新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Epoxy molding compound has more solid fillers, and the mixing ability is generally poor
The process used in the past cannot effectively solve the dispersion uniformity of raw materials, so the above problems need to be solved urgently

Method used

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  • A super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging
  • A super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] See Table 1 for the composition of the raw material formulation of the super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging in Example 1.

[0072] In this embodiment, the method for preparing super heat-resistant and high thermal conductivity epoxy molding compound for semiconductor packaging is as follows:

[0073] (1) 112.5g phenolic resin PF8010, 5.63g accelerator 2-ethyl-4 methylimidazole, 4.95g low stress modifier SF-8241EG, 6.75g coupling agent KH560 and 5.63g release agent carnauba wax Add it into the mixer and stir it at 150°C for 40 minutes. When the mixture in the container is melted and mixed well, it is cooled, pulverized and sieved for use.

[0074] (2) 45.15g of the mixture obtained in step (1), 45g of epoxy resin TTA 3150, 210g of silica powder, 435g of spherical alumina, 10.35g of ion trapping agent DHT-4C, 2.25g of flame retardant zinc borate and 2.25 g coloring agent carbon black was put into a high-speed ...

Embodiment 2

[0077] See Table 1 for the raw material formulation composition of the super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging in Example 2.

[0078] In this embodiment, the method for preparing super heat-resistant and high thermal conductivity epoxy molding compound for semiconductor packaging is as follows:

[0079] (1) Add 150g phenolic resin PF5090, 9g accelerator 2-ethyl-4 methylimidazole, 3.9g low stress modifier SF-8241EG, 6g coupling agent KH560 and 9g release agent carnauba wax to the mixer Stir at 170°C for 60 minutes, and when the mixture in the container is melted and mixed well, cool, pulverize and sieve for use.

[0080] (2) 44.48g of the mixture obtained in step (1), 67.5g of epoxy resin HP 4700, 99.53g of silica micropowder, 525g of spherical alumina, 7.5g of ion trapping agent DHT-4C, 3.75g of flame retardant zinc borate and 2.25g of colorant carbon black were put into a high-speed mixer and mixed for 8 minutes, and...

Embodiment 3

[0083] See Table 1 for the composition of the raw material formulation of the super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging in Example 3.

[0084] In this embodiment, the method for preparing super heat-resistant and high thermal conductivity epoxy molding compound for semiconductor packaging is as follows:

[0085] (1) Add 210g phenolic resin PF5090, 3g accelerator 2-ethyl-4 methylimidazole, 7.5g low stress modifier SF-8241EG, 6g coupling agent KH560 and 3g release agent carnauba wax to the mixer Inside, stir at 170°C for 50 minutes, and when the mixture in the container is melted and fully mixed, cool, pulverize and sieve for use.

[0086] (2) 57.37g of the mixture obtained in step (1), 90g of epoxy resin HP 7241, 180g of silica powder, 405g of spherical alumina, 7.5g of silicon nitride, 3.75g of ion trapping agent DHT-4C, 5.25g of resist The fuel zinc borate and 1.5g of the colorant carbon black were put into a high-spee...

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Abstract

The invention provides a super heat-resistant and high thermal conductive epoxy plastic sealing compound for semiconductor packaging, which contains the following components: 45-127.5 parts by weight of epoxy resin, 60-300 parts by weight of curing agent, and 3.75-10.35 parts by weight of ion trapping agent , 3.9-15 parts by weight of low stress modifier, 3-6.75 parts by weight of coupling agent, 0.9-9 parts by weight of accelerator, 525-672.25 parts by weight of solid filler, 3-12 parts by weight of mold release agent, 2.25 parts by weight of flame retardant -5.25 parts by weight, 1.5-2.25 parts by weight of colorants. In the super-heat-resistant and high-thermal-conductivity epoxy molding compound for semiconductor encapsulation provided by the present invention, ester ring epoxy resin, heterocyclic epoxy resin, naphthalene ring epoxy resin, and multifunctional epoxy resin are added as resins. Matrix, this kind of grease has a rigid structure, which makes the molecular chain difficult to move. At the same time, because the resin has a multifunctional structure, it can increase the crosslinking density after curing of the resin, thereby achieving the effect of increasing the glass transition temperature of the material and increasing the heat resistance of the material. .

Description

technical field [0001] The invention relates to a super heat-resistant and high thermal conductivity epoxy plastic sealing compound for semiconductor packaging, belonging to the field of electronic packaging. Background technique [0002] Epoxy resin is used as the main resin and curing agent to cure at high temperature under the action of curing accelerator. The combination of epoxy resin and phenolic resin is the mainstream of electronic plastic sealing materials. Among the above materials, silica, calcium carbonate, etc. are supplemented. Inorganic fillers, as well as flame retardants and various additives, can prepare plastic packaging materials that meet the needs of electronic packaging. Epoxy molding compounds have many beneficial properties and are commonly used in electronic packaging. [0003] With the development of chip frontier fields such as silicon carbide, silicon nitride, boron nitride, and gallium nitride chips, the operating temperature is higher than 175...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K3/36C08K7/18C08K3/38C08K3/34C09K5/14
CPCC08K2003/385C08K2003/387C08L63/00C08L2201/08C08L2203/206C09K5/14C08K3/36C08K7/18C08K3/38C08K3/34
Inventor 杨鑫浩李海亮李刚王善学卢绪奎
Owner 江苏中科科化新材料股份有限公司
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