COB light source structure
A technology of light source and light emitting area, applied in the field of lighting, can solve problems such as short circuit and contact electrode corrosion, and achieve the effect of avoiding corrosion and prolonging life.
Inactive Publication Date: 2020-05-05
GUANGDONG HHH OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0002] At present, COB light sources are generally equipped with flip chips, but there will be a gap between the two contact electrodes of the flip chip. Finally, an insulating block needs to be embedded in the gap to prevent moisture or dust from entering the electrode and causing contact electrode corrosion. However, there is still a gap between the insulating block and the flip chip, which will still cause contact electrode corrosion after a long time
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[0019] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.
[0020] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
[0021] I...
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The invention discloses a COB light source structure which comprises a flip chip, a ceramic substrate and transparent filler. The flip chip is provided with a contact electrode used for electrical connection. The ceramic substrate is provided with a light-emitting area used for installing the flip chip. The edge of the light-emitting area is provided with a box dam. Bosses are arranged in the light-emitting area, and a gap is formed between every two adjacent bosses. The flip chip is fixed on the bosses. The transparent filler is filled in the box dam of the light-emitting area, is insulated,and wraps the contact electrode, the positive electrode and the negative electrode. The positive electrode and the negative electrode are arranged on the bosses. A circuit is arranged in the ceramic substrate, and the flip chip is electrically connected with the circuit through the positive electrode and the negative electrode. The transparent filler is filled into the gap in the flip chip, so that the two contact electrodes of the flip chip are accommodated in the transparent filler. The insulated transparent filler ensures that moisture or dust in the gap enters the contact electrodes, so that the contact electrodes are prevented from being corroded, and the service life is prolonged.
Description
technical field [0001] The invention relates to the lighting field, in particular to a COB light source structure. Background technique [0002] At present, COB light sources are generally equipped with flip chips, but there will be a gap between the two contact electrodes of the flip chip. Finally, an insulating block needs to be embedded in the gap to prevent moisture or dust from entering the electrode and causing corrosion of the contact electrode. However, there is still a gap between the insulating block and the flip chip, which will still lead to corrosion of the contact electrode after a long time. Contents of the invention [0003] The purpose of the present invention is to solve at least one of the technical problems in the prior art. For this reason, the present invention proposes a COB light source structure, which can ensure that the flip chip is not corroded. [0004] The technical scheme that the present invention solves its technical problem adopts is, ...
Claims
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Login to View More IPC IPC(8): H01L25/075H01L33/52H01L33/62
CPCH01L25/0753H01L33/52H01L33/62
Inventor 冯挺余铭彬黎三科
Owner GUANGDONG HHH OPTOELECTRONICS TECH CO LTD