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Preparation method of flexible copper clad liquid crystal high molecular substrate

A liquid crystal polymer and flexible technology, which is applied in the field of preparation of flexible copper-clad liquid crystal polymer substrates, can solve the problem of difficult thinning of LCP films, high production cost and low production capacity of flexible copper-clad liquid crystal polymer substrates and other problems, to achieve the effect of strength improvement, cost reduction, and simple production steps

Active Publication Date: 2018-03-13
CHENGDU DO ITC NEW MATERIAL
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high production cost of the above-mentioned flexible copper-clad liquid crystal polymer substrate, low production capacity and difficulty in thinning the LCP film

Method used

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  • Preparation method of flexible copper clad liquid crystal high molecular substrate
  • Preparation method of flexible copper clad liquid crystal high molecular substrate
  • Preparation method of flexible copper clad liquid crystal high molecular substrate

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] Such as figure 1 and 2 Shown, a kind of preparation method of flexible copper-clad liquid crystal polymer substrate is characterized in that, described method comprises the following steps:

[0026] Step 1: Add the LCP material into the solvent, and then perform sufficient sanding to obtain the LCP glue;

[0027] Step 2: apply the LCP glue obtained in step 1 on a layer of copper foil 2, and then dry it in a tunnel oven to make the LCP glue into an LCP glue layer 1;

[0028] Step 3: Pressing the copper foil 2 with the LCP adhesive layer 1 obtained in step 2 and another layer of copper foil...

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Abstract

The invention discloses a preparation method of a flexible copper clad liquid crystal high molecular substrate. The preparation method comprises the following steps of firstly coating a layer of LCP (Liquid Crystal Polymer) glue on a layer of copper foil, afterwards, oven-drying by using a tunnel drying oven, then laminating the obtained copper foil with an LCP glue layer with another layer of copper foil, so as to obtain a substrate, and afterwards, carrying out post cure through a program drying oven, so as to obtain the flexible copper clad liquid crystal high molecular substrate. Through the method, the ultra-thinness of the thickness of the LCP glue layer is quite easily achieved; the development that an electronic product tends to be ultra-thin in future is facilitated; moreover, a high-temperature press is replaced with a low-temperature press during lamination; the cost is greatly decreased; the production capacity is also improved; a post-cure step is carried out on the laminated substrate; the internal stress is effectively removed; the bonding strength and the cohesion strength are improved and the strength of the whole flexible copper clad liquid crystal high molecularsubstrate is promoted.

Description

technical field [0001] The invention belongs to the field of copper-clad foil boards, and in particular relates to a preparation method of a flexible copper-clad liquid crystal polymer substrate. Background technique [0002] Liquid crystal polymer, also called liquid crystal polymer, is Liquid Crystal Polymer in English, abbreviated as LCP, is a new type of polymer material, it will generally become liquid crystal in a certain heating state, so it is named after it, liquid crystal Polymer refers to a polymer compound that can exist in a liquid crystal phase under certain conditions, and its characteristic is that the molecule has a relatively high molecular weight and has an ordered orientation. [0003] The current preparation method of flexible copper-clad liquid crystal polymer substrate is: directly purchase LCP film, and then produce it by high-temperature pressing method. However, in this method, LCP film is mostly extruded into film, which is difficult to prepare. T...

Claims

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Application Information

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IPC IPC(8): B32B37/12B32B37/10B32B38/00B32B38/16
CPCB32B37/10B32B37/1284B32B38/00B32B38/164B32B2037/1253B32B2038/0076
Inventor 侯曦月杨刚
Owner CHENGDU DO ITC NEW MATERIAL
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