Laser direct forming method for spraying dielectric paint

Abstract

The invention discloses a laser direct structuring method for spraying a dielectric paint. The method comprises the following steps that 1, a carrier is selected; 2, a layer of laser dielectric paint is sprayed on the surface of the carrier through a spray gun, a layer of paint layer film is formed after high curing, and the dielectric paint contains copper ions, baking is conducted at 100-120 DEG C for 120-480 min; and 3, a laser mode is adopted. According to the laser direct forming method for spraying the dielectric paint, after the layer of dielectric paint is sprayed on a common material, the function of a chemical plating antenna is achieved through a common LASER technology, spraying can be conducted on common materials such as PC, PA, PPA and glass materials, the product has high consistency, fine resolution can be achieved, complex 3D circuit patterns can be manufactured, the NFC function of watch glass can be achieved, and the method can be flexibly applied to a 5G communication project function, can be rapidly produced, does not need long-time paint baking, remarkably improves the production efficiency and the production yield, and greatly reduces the energy consumption.

Description

technical field [0001] The invention relates to the technical field of plastic metallization, in particular to a laser direct molding method for spraying dielectric paint. Background technique [0002] It is currently used in smart hand frame projects, and the structure is complex. For example, special materials are required for the purchase of LDS technology. The addition of metal copper ion materials to PC materials will affect the structural strength. The drop test of plastic middle frames is easy to cause cracking. After our special process The R&D and technical teams have made continuous efforts to spray the antenna with proton paint to realize the metallized circuit function. The reliability test and antenna function realization problems can be improved through new technology. [0003] One of the current three-dimensional antenna circuit methods, the process flow is to use the material sprayed with copper ion dielectric varnish to make structural parts (the sprayed die...

AI Technical Summary

Problems solved by technology

[0005] PDS (direct printing technology) has no special requirements on the plastic carrier material, but there are certain restrictions on the structure. The PDS process can apply the silver paste on the plastic carrier through pad printing (screen printing) technology, and through multiple pad printing splicing processes To realize 3D antenna lines, this PDS process can be applied to material carriers such as PPA, PC, ABS, PC+ABS, PPA, PET, PI, and glass. This PDS process has poor precision and high impedance of metal lines, so we make a Improvement, a method of laser direct structuring for spraying dielectric varnish is proposed

Images