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Photoelectric diode device capable of increasing light-emitting angle and manufacturing method thereof

A technology of light-emitting angle and manufacturing method, which is applied in the direction of circuits, electrical components, semiconductor devices, etc., can solve the problems of affecting the optical performance of LED products, high defective rate of LED products, and contaminated contact surfaces, so as to reduce the defective rate of products and avoid The effect of white glue falling off and reducing the overall thickness

Pending Publication Date: 2021-11-19
FUJIAN TIANDIAN OPTOELECTRONICS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

However, in practice, poor bonding between the encapsulating colloid layer and the white glue often occurs due to poor process control or contamination of the contact surface, which causes the white glue to fall off from the encapsulating colloid layer, affecting the optics of LED products. performance, the defect rate of LED products is quite high

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  • Photoelectric diode device capable of increasing light-emitting angle and manufacturing method thereof
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  • Photoelectric diode device capable of increasing light-emitting angle and manufacturing method thereof

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] In describing the present invention, it should be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which i...

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Abstract

The invention discloses a photoelectric diode device capable of increasing a light-emitting angle and a manufacturing method thereof. The manufacturing method comprises the following steps of: fixing a light-emitting chip on a substrate; then, arranging a light blocking layer above the light-emitting chip; and finally, arranging a packaging layer on the substrate, wherein the packaging layer covers the light-emitting chip and the light blocking layer. According to the invention, the light-emitting angle of the photoelectric diode device can be effectively increased, the problem that white glue falls off is avoided, the reject ratio of products is reduced, the overall thickness can be reduced, and the application scene is wider.

Description

technical field [0001] The invention relates to the field of semiconductor manufacturing technology, in particular to a photodiode device capable of effectively increasing the light-emitting angle and a manufacturing method thereof. Background technique [0002] In recent years, the application of LED products has become more and more extensive, such as LED display applications, indoor LED lighting applications, automotive LED lighting applications and so on. However, the light emitting angle of the existing LED products is about 150°, which can no longer meet people's needs. LED products began to pursue greater light-emitting angle characteristics. [0003] The existing method is: add a layer of white glue on the top of the traditional LED products, that is, add a layer of white glue on the top of the encapsulation colloid layer to increase the light output ratio of the side light, and the achievable luminous angle is about 165° ° around. However, in practice, poor bondi...

Claims

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Application Information

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IPC IPC(8): H01L33/44H01L33/48
CPCH01L33/44H01L33/48H01L2933/0025H01L2933/0033
Inventor 杨皓宇陳彧洪国展陈锦庆林紘洋朱澄袁瑞鴻苏炤亘翁念义
Owner FUJIAN TIANDIAN OPTOELECTRONICS CO LTD
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