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A method for manufacturing a micro LED flexible circuit board

A flexible circuit board and manufacturing method technology, which is applied in the manufacture of printed circuits, removal of conductive materials by chemical/electrolytic methods, and printed circuits, etc. Guarantee quality and other issues to achieve the effect of improving product quality, improving bonding force, and ensuring the accuracy of exposed offset

Active Publication Date: 2021-08-24
厦门爱谱生电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the traditional manufacturing process, the deviation tolerance of the matrix pad line is large, the product deformation is large, and the ink bonding force is poor, which will make the optical performance of the product fail to meet the requirements, and the product reflection rate can only be controlled within 85%, and the reliability is poor. guaranteed quality

Method used

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  • A method for manufacturing a micro LED flexible circuit board
  • A method for manufacturing a micro LED flexible circuit board
  • A method for manufacturing a micro LED flexible circuit board

Examples

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Embodiment Construction

[0022] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to figure 1 and 2 , describes a method for manufacturing a Micro LED flexible circuit board, wherein the Micro LED flexible circuit board is a double-sided board, its main body width d1 is less than 2 mm, and the frame width d2 is less than 0.1 mm, the method includes the following steps:

[0024] 100. Prepare materials. Cut the double-sided copper-clad laminate into a predetermined size, which is suitable for making multiple Micro LED flexible circuit board products arranged in an array. The double-sided copper-clad laminate is a 1 / 3OZ halogen-free adhesive double-sided substrate. Specifically, the double-sided copper-clad laminate includes a substrate layer, a white glue layer and a copper layer stacked from the inside to the outside. Wherein, the thickness of the substrate layer is 13 microns, the thickness of the white glue layer ...

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Abstract

The invention relates to a method for manufacturing a Micro LED flexible circuit board, wherein the Micro LED flexible circuit board is a double-sided board with Micro LED pads distributed in a matrix. Copper-clad laminate, the double-sided copper-clad laminate has a white glue layer between the copper layer and the substrate; the double-sided copper-clad laminate is baked; drilling, black hole, plasma cleaning and copper plating are performed in sequence; the front and back circuits are made; AOI, control the gap of the wire within 10% of the line width; paste the cover film, in which the Micro LED pad surface needs to use a white cover film, and the non-Micro LED pad surface uses a yellow cover film, and the Micro LED pad area corresponds to the white cover film. Windows need to be opened; punching; solder-proof gold treatment of the pads, in which the photosensitive ink is white; reinforcement, silk screen text, flying probe test, molding and packaging are carried out in sequence. The invention can ensure the offset precision of the exposure of Micro LED pads, improve the light reflectivity and the bonding force between photosensitive ink and circuit, and improve product quality.

Description

technical field [0001] The invention relates to the field of flexible circuit boards, in particular to a method for manufacturing a Micro LED flexible circuit board. Background technique [0002] Flexible circuit board is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film, referred to as soft board or FPC, with high wiring density and light weight. , The characteristics of thin thickness. Micro LED flexible circuit board is a brand-new product. Usually, each Micro LED flexible circuit board can integrate thousands of Micro LEDs, which can be applied to various display screens. Usually, this kind of Micro LED flexible circuit board is a double-sided board, and its front side has Micro LED pads distributed in a matrix. Using the traditional manufacturing process, the deviation tolerance of the matrix pad line is large, the product deformation is large, and the ink bonding force is poor, which will make the optical performance o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00H05K3/06H05K3/28
CPCH05K3/00H05K3/0047H05K3/06H05K3/282H05K2203/052
Inventor 邹平林建华
Owner 厦门爱谱生电子科技有限公司
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