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Organosilicon polyimide insulation adhesive for LED

A silicon polyimide and adhesive technology, applied in the directions of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor adhesion of conductive adhesives and small chip thrust, and achieve excellent bonding strength, The effect of good storage stability

Active Publication Date: 2013-05-01
上海本诺电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the polarity of the main chain of polysiloxane is small, the above-mentioned conductive adhesive has poor adhesion, and the thrust of the chip is relatively small, and the thrust of the small chip at room temperature is less than 5kgf / die (2×2mm)

Method used

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  • Organosilicon polyimide insulation adhesive for LED
  • Organosilicon polyimide insulation adhesive for LED
  • Organosilicon polyimide insulation adhesive for LED

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0042] As shown in Table 1, mix amino-terminated silicone oil SiMNH, anhydride-terminated silicone oil SiMDH and polyamino-silicone oil SinNH in a certain proportion, stir at room temperature for 6 hours, then add silicon dioxide, titanium dioxide and interface reinforcing agent silane coupling agent , using a three-roll mill to grind three times to obtain a silicone polyimide insulating adhesive.

[0043] Table 1. Components of silicone polyimide insulating adhesive

[0044]

[0045] DAGA 4000 thruster was used to test the properties of the silicone polyimide insulating adhesives for LEDs obtained in Examples 1-4, and the results are shown in Table 2.

[0046] Table 2. Properties of silicone polyimide insulating adhesive

[0047]

[0048] It can be seen from the results in Table 2 that the refractive index of the silicone polyimide insulating adhesive for LED prepared by the method of Examples 1 to 4 is 1.48 to 1.49, the glass transition temperature is 102 to 112°C, an...

Embodiment 5～8

[0050] As shown in Table 3, mix amino-terminated silicone oil SiMPNH, anhydride-terminated silicone oil SiMPDH and polyamino-silicone oil SinNH in a certain proportion, stir at room temperature for 8 hours, then add silicon dioxide, titanium dioxide and interface reinforcing agent silane coupling agent , using a three-roll mill to grind three times to obtain a silicone polyimide insulating adhesive.

[0051] Table 3. Components of silicone polyimide insulating adhesive

[0052]

[0053] DAGA 4000 thruster was used to test the properties of the silicone polyimide insulating adhesives for LEDs obtained in Examples 5-8, and the results are shown in Table 4.

[0054] Table 4. Properties of silicone polyimide insulating adhesive

[0055]

[0056] It can be seen from the results in Table 4 that the refractive index of the silicone polyimide insulating adhesive for LEDs prepared by the method of Examples 5-8 is 1.53, the glass transition temperature is 113-121°C, and the thrus...

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Abstract

The invention discloses an organosilicon polyimide insulation adhesive for an LED. The adhesive includes, by weight, 10 to 40 parts of amino-terminated silicone oil, 10 to 40 parts of anhydride-terminated silicone oil, 5 to 10 parts of polyamino silicone oil, 2 to 5 parts of a silica filling material, 2 to 5 parts of a titanium dioxide filling material and 0.3 to 1.2 parts of an interfacial strengthening agent-silane coupling agent. According to the invention, the advantages of both an organosilicon resin and a polyimide resin are combined together, and an organosilicon polyamide acid prepolymer is synthesized at first and is finally cured to obtain the organosilicon polyimide insulation adhesive; high temperature resistance of the polyimide resin and light transmittance performance of a polysilicone resin are retained, and the insulation adhesive also has excellent high temperature adhesive properties.

Description

technical field [0001] The invention relates to an insulating adhesive for LEDs, in particular to a silicone polyimide insulating adhesive for LEDs. Background technique [0002] Since the beginning of the 21st century, the energy situation has become increasingly severe, and saving energy is more economical and environmentally friendly than developing new energy, so it should be put in the first place. Currently, lighting accounts for about 20% of the world's total energy consumption. If the traditional light source with low energy consumption, long life, safety and environmental protection is used to replace the traditional light source with low efficiency and high power consumption, it will undoubtedly bring about a worldwide lighting revolution (Yang Xiongfa, Wu Chuan, Dong Hong, etc. LED Research progress of silicone materials for encapsulation. Silicone Materials, 2009, 23, 47~50). [0003] With its inherent characteristics, such as power saving, long life, shock res...

Claims

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Application Information

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IPC IPC(8): C09J179/08C09J11/04C09J11/06H01L33/56
Inventor 黄健翔
Owner 上海本诺电子材料有限公司
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