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A method for protecting the mirror area of ​​a cob mirror aluminum substrate

A technology of mirror aluminum substrate and area protection, which is applied in the bonding method of adhesive heating, film/sheet adhesive, film/sheet without carrier, etc., which can solve the problem of heat-resistant adhesive residue and substrate temperature. Problems such as unevenness, warping and peeling can be avoided to avoid warping, realize equipment operation, and improve efficiency and accuracy

Inactive Publication Date: 2018-03-30
XIAMEN UM OPTO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the traditional protection method is to make the bottom plate of the jig or manually apply the glue. This method requires manual picking and placing of the substrate and manual glue application, which is inefficient and error-prone, and the temperature of the substrate will be brought by the jig. Unevenness, causing warping and peeling, the heat-resistant glue that is manually pasted may remain, and it will also pollute the protected area and fail to protect

Method used

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  • A method for protecting the mirror area of ​​a cob mirror aluminum substrate
  • A method for protecting the mirror area of ​​a cob mirror aluminum substrate

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A method for protecting the mirror area of ​​a COB mirror aluminum substrate, comprising the following steps:

[0022] Step 1. Preparation of heat-resistant glue: Weigh the following components in parts by weight: 60 parts of vinyl resin, 18 parts of curing agent, 8-parts of phthalate, 2 parts of lubricant and 2.5 parts of pigment system ; Heating the vinyl acetate resin, the curing agent and the phthalate to 55°C, stirring evenly, then adding the lubricant and the pigment system, stirring thoroughly, and cooling to room temperature, that is The heat-resistant glue can be obtained; the curing agent includes the following parts by weight: 10 parts of epoxy resin, 8 parts of resole phenolic resin; the lubricant includes the following parts by weight: hard 1 part of barium fatty acid, 1 part of triphenyl phosphate. The pigment system comprises the following components in parts by weight: 1 part of calcium carbonate, 1 part of silicon dioxide, and 0.5 part of phthalocyanin...

Embodiment 2

[0028] A method for protecting the mirror area of ​​a COB mirror aluminum substrate, comprising the following steps:

[0029] Step 1. Preparation of heat-resistant glue: Weigh the following components in parts by weight: 62 parts of vinyl resin, 20 parts of curing agent, 9 parts of phthalate, 3 parts of lubricant and 3 parts of pigment system; Heat the vinyl acetate resin, the curing agent, and the phthalate to 60°C, stir evenly, then add the lubricant and the pigment system, stir well, and cool to room temperature. Prepare the heat-resistant glue; the curing agent includes the following parts by weight: 11 parts of epoxy resin, 9 parts of resole phenolic resin; the lubricant includes the following parts by weight: stearin 1 part of barium acid, 2 parts of triphenyl phosphate; the pigment system includes the following components in parts by weight: 1 part of calcium carbonate, 1 part of silicon dioxide, and 1 part of phthalocyanine blue.

[0030] Step 2. Silk screen printing:...

Embodiment 3

[0035] A method for protecting the mirror area of ​​a COB mirror aluminum substrate, comprising the following steps:

[0036] Step 1. Preparation of heat-resistant glue: Weigh the following components in parts by weight: 65 parts of vinyl resin, 22 parts of curing agent, 10 parts of phthalate, 5 parts of lubricant and 5 parts of pigment system; Heat the vinyl acetate resin, the curing agent, and the phthalate to 65°C, stir evenly, then add the lubricant and the pigment system, stir well, and cool to room temperature. Prepare the heat-resistant glue; the curing agent includes the following parts by weight: 12 parts of epoxy resin, 10 parts of resole phenolic resin; the lubricant includes the following parts by weight: stearin 2 parts of barium acid, 3 parts of triphenyl phosphate; the pigment system includes the following components in parts by weight: 2 parts of calcium carbonate, 2 parts of silicon dioxide, and 01 part of phthalocyanine blue.

[0037] Step 2, silk screen pri...

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Abstract

The invention discloses a mirror surface region protection method of a COB mirror surface aluminum base plate, which comprises the following steps: step 1, preparing heat resistant glue: respectively weighing the following components in parts by weight: 60-65 parts of VAGH, 18-22 parts of curing agent, 8-10 parts of phthalate, 2-5 parts of lubricant and 2.5-5 parts of pigment system; heating the VAGH, curing agent and phthalate to 55-65 DEG C, stirring uniformly, then adding the lubricant and the pigment system, after fully stirring and cooling to room temperature to obtain the heat resistant glue; step 2, screen printing: by enabling a prepared screen to correspond to a mirror surface region of the COB mirror surface aluminum base plate, printing the heat resistant glue, and baking; step 3, reflow soldering: performing hot air reflow soldering on the COB mirror surface aluminum base plate; step 4, film tearing: after the reflow soldering is finished, manually tearing a protection film. By performing screen printing of the heat resistant glue in the mirror surface region, during reflow soldering, the mirror surface region is effectively protected.

Description

technical field [0001] The invention relates to the technical field of COB packaging, in particular to a method for protecting a mirror area of ​​a COB mirror aluminum substrate. Background technique [0002] COB light source is a high-efficiency integrated surface light source technology in which LED chips are directly attached to a high-reflectivity mirror metal substrate. Due to process requirements, the COB aluminum substrate needs to pass through a reflow oven to prevent the mirror area and the bonding pad from being polluted or oxidation, the area needs to be covered for protection purposes. [0003] In the existing technology, the traditional protection method is to make the bottom plate of the jig or manually apply the glue. This method requires manual picking and placing of the substrate and manual glue application, which is inefficient and error-prone, and the temperature of the substrate will be brought by the jig. Unevenness will cause warping and peeling, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J5/06C09J127/06C09J163/00C09J11/04C09J11/06C09J7/10
CPCC09J5/06C09J7/00C09J11/04C09J11/06C09J127/06C09J2203/326C09J2301/502C09J2427/00C08L63/00C08K13/02C08K3/36C08K5/098C08K5/523C08K2003/265
Inventor 王亚山李恒彦黄敏李儒维
Owner XIAMEN UM OPTO TECH
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