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Anisotropic conductive adhesive, conductive film, and electrical connection method

An anisotropic, conductive adhesive technology, applied in the field of electrical connection, can solve problems such as inability to apply

Inactive Publication Date: 2011-12-07
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this conductive adhesive can only be applied to the electrical connection of transparent electrodes (such as ITO electrodes) on the glass substrate, and for opaque electrodes (such as plasma display ADD and BUS electrodes), because ultraviolet light cannot penetrate, it cannot application

Method used

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  • Anisotropic conductive adhesive, conductive film, and electrical connection method
  • Anisotropic conductive adhesive, conductive film, and electrical connection method
  • Anisotropic conductive adhesive, conductive film, and electrical connection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The components contained in the anisotropic conductive adhesive 2 made into the dry film in this embodiment and their respective mass percentages (relative to 100w% dry film conductive adhesive) are shown in Table 1:

[0049] Table 1

[0050]

[0051] The anisotropic conductive adhesive 2 was coated on the PET protective base tape 1 with a thickness of 15 μm to form a dry film, and the thickness of the dry film was 40 μm.

[0052] Use the anisotropic conductive film in the present invention for electrical connection:

[0053] Step 1: Cut a certain length of anisotropic conductive film as required, press it on the electrode terminal of the glass substrate 4 at 40°C, peel off the protective base tape 1, and form anisotropic conductive adhesive 2 on the electrode terminal ;

[0054] Step 2: Precisely align the 5 electrodes of the flexible circuit to be electrically connected with the 4 electrodes of the glass substrate, and then perform pre-pressing;

[0055] Step 3:...

Embodiment 2

[0057] The components contained in the anisotropic conductive adhesive 2 made into the dry film in this embodiment and their respective mass percentages (relative to 100w% dry film conductive adhesive) are shown in Table 2:

[0058] Table 2

[0059]

[0060] The anisotropic conductive adhesive 2 is coated on a 20 μm thick PET protective base tape 1 to form a dry film, and the dry film thickness is 30 μm.

[0061] Use the anisotropic conductive film in the present invention for electrical connection:

[0062] Step 1: Cut a certain length of anisotropic conductive film as required, press it on the electrode terminal of the glass substrate 4 at 50°C, peel off the protective base tape 1, and form anisotropic conductive adhesive 2 on the electrode terminal ;

[0063] Step 2: Precisely align the 5 electrodes of the flexible circuit to be electrically connected with the 4 electrodes of the glass substrate, and then perform pre-pressing;

[0064] Step 3: Carry out pressure on th...

Embodiment 3

[0066] The components contained in the anisotropic conductive adhesive 2 made into the dry film in this embodiment and their respective mass percentages (relative to 100w% dry film conductive adhesive) are shown in Table 3:

[0067] table 3

[0068]

[0069] The anisotropic conductive adhesive 2 is coated on a 25 μm thick PET protective base tape 1 to form a dry film, and the dry film thickness is 45 μm.

[0070] Use the anisotropic conductive film in the present invention for electrical connection:

[0071] Step 1: Cut a certain length of anisotropic conductive film as required, press it on the electrode terminal of the glass substrate 4 at 55°C, peel off the protective base tape 1, and form anisotropic conductive adhesive 2 on the electrode terminal ;

[0072] Step 2: Precisely align the 5 electrodes of the flexible circuit to be electrically connected with the 4 electrodes of the glass substrate, and then perform pre-pressing;

[0073] Step 3: Carry out pressure on th...

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Abstract

The invention relates to an aeolotropic conductive adhesive and a conductive film comprising the same. The conductive adhesive is prepared from the following components: a) 20-40w% of cross-linkable cured resin, wherein at least part of the cross-linkable cured resin is light-cured resin and at least part of the cross-linkable cured resin is heat reactive resin; b) 5-20w% of activated monomer; c) heat curing agent and light curing agent with a sum of 1-8w%; d) 10-40w% of thermoplastic resin; e) selectable 3-15% of plasticizer; and f) 20-70w% of conductive particles. The aeolotropic conductive adhesive and the aeolotropic conductive film can be conveniently and effectively used for the electric connection between base plates with a non-transparent circuit or a conductive element. The base plates are not damaged due to the problems of high temperature and high voltage in the process of the electric connection and the effect of the electric connection cannot be influenced due to the non-transparency of the conductive element.

Description

technical field [0001] The invention relates to an anisotropic conductive adhesive, an anisotropic conductive film, and an electrical connection method. Background technique [0002] In recent years, with the maturity of flat panel display technologies such as liquid crystal display (LCD) and plasma display (PDP), flat panel display devices have gradually replaced traditional cathode ray tubes (CRT) and are used in all aspects of life. At present, flat panel display devices are promoting high-definition, and the electrical connection between the display substrate and the flexible circuit is one of the key technologies. This kind of electrical connection was first used by wave soldering technology, but this technology can no longer meet the requirements of ultra-fine line connection. The recently developed anisotropic conductive glue (ACF) connection technology is to mix conductive metal particles or plastic hollow balls coated with metal in the organic adhesive to make them...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J9/02C09J4/06C09J167/06C09J7/02H01B1/22G02F1/13H01L21/60H01L23/488
CPCH01L2224/16225H01L2224/32225H01L2224/73204H01L2224/83101
Inventor 卢正险
Owner SICHUAN COC DISPLAY DEVICES
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