Application of a kind of demembrane agent
A film-removing agent and film-removing technology, applied in the direction of adhesives, detergent compositions, adhesive additives, etc., can solve problems such as affecting the luminous effect, achieve good shading effect, avoid scratching the surface of the chip, and improve the effect of uniformity
Active Publication Date: 2021-01-19
安晟技术(广东)有限公司
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- Application Information
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Problems solved by technology
Single-sided light-emitting LED chips need to use light-shielding glue to cover the four sides of the LED chip. However, when preparing single-sided light-emitting LED chip packages, the upper surface of the LED chip, that is, the light-emitting surface, is often stained with light-shielding glue, which affects the lighting effect.
Method used
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Embodiment Construction
[0046] The anti-film agent used in the embodiment of the present invention includes the following components: 50-70 parts by mass of diluent, 30-40 parts by mass of denatured alcohol, and 20-30 parts by mass of acetone. The use of the film eliminating agent can effectively remove excess residual film on the surface of the chip, and after the residual film is removed, subsequent baking will not cause foaming, which strengthens the adhesion between the chip and the fluorescent film.
[0047] The preparation steps of the anti-membrane agent include: adding materials sequentially according to the order of acetone, industrial alcohol, and diluent, stirring clockwise for 5 minutes through a glass rod, and storing in a cool place for later use. The examples and comparative examples of the anti-membrane agents with different component dosages prepared by the above-mentioned preparation method and their performance parameters are shown in Table 3 below. In the examples and comparative ...
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Abstract
The invention relates to a film removing agent and a preparation method and application thereof. The film removing agent comprises the following components in parts by mass: 50 to 70 parts of diluent;30 to 40 parts of industrial alcohol; 10 to 30 parts of acetone, wherein the diluent comprises methyl acetate and industrial alcohol. When the film removing agent is used for preparing a packaging piece of a single-sided light-emitting LED chip, redundant opacifying agent residual films on the surface of the chip can be effectively removed, after the residual films are removed, the subsequent fluorescent glue coating baking cannot foam, and the bonding degree of the chip and a fluorescent film is enhanced.
Description
technical field [0001] The invention relates to the technical field of LED chip packaging, in particular to an anti-film agent, its preparation method and application. Background technique [0002] In the manufacturing process of LED lamps, LED chips need to be packaged. The traditional LED chip packaging process is to dispense glue to the LED chips one by one, which is time-consuming, high production cost, and difficult to control and reduce the volume and thickness of the LED chip package. The new chip-scale packaging technology, CSP, can reduce the packaging volume, make the package thinner, and help heat dissipation. Existing CSP LEDs usually emit light from five sides, that is, the top surface and four sides of the LED chip can emit light. The process of five-sided light emission is relatively simple, but it cannot meet the requirements for the angle and consistency of the light emitted by the product. A single-sided light-emitting LED chip needs to use light-shieldin...
Claims
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IPC IPC(8): H01L33/56H01L33/54H01L25/065C09J183/04C09J11/04C11D7/26C11D7/60
CPCC08K2003/2227C08K2003/2241C08L2203/206C08L2205/025C08L2205/035C09J11/04C09J183/04C11D7/261C11D7/264C11D7/266H01L25/0655H01L33/54H01L33/56H01L2933/005C08L83/04C08K3/36C08K3/22
Inventor 麦家通戴轲
Owner 安晟技术(广东)有限公司