Liquid crystal polymer flexible copper-clad plate and manufacturing method thereof

Abstract

The invention discloses a liquid crystal polymer flexible copper-clad plate and a manufacturing method thereof. The manufacturing method comprises the steps that: a first aluminum foil, a first PE film, a first aluminum foil, a first release film, a first copper foil, a liquid crystal polymer film, a second copper foil, a second release film, a second aluminum foil, a second PE film and a second aluminum foil are stacked in sequence to obtain a stacked structure; and vacuum high-temperature lamination is performed on the stacked structure, so that the liquid crystal polymer flexible copper-clad plate can be obtained. The aluminum foil, the PE film and the release film are used as laminating paving materials, so that the liquid crystal polymer flexible copper-clad plate can bear higher temperature; the PE film can play a role in filling, and the expansion and shrinkage of the aluminum foil are controllable, so that a liquid crystal polymer flexible film with a smooth surface and high peel strength can be prepared; traditional sheet-shaped high-temperature and high-pressure pressing equipment can be adopted for pressing, so that manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of electrical materials, in particular to a liquid crystal polymer perturbed copper clad laminate and a manufacturing method thereof. Background technique [0002] With the development requirements of high frequency and high speed, the Dk and Df values ​​of traditional PI interference CCL materials can no longer meet its electrical performance requirements. LCP (Liquid Crystal Polymer, liquid crystal polymer) disruptive copper clad laminate is a high-frequency material with low Dk and Df values, which can meet the needs of the high-frequency and high-speed era. LCP is a new type of thermoplastic polymer material, which can realize high-frequency and high-speed transmission under the premise of ensuring high reliability. [0003] LCP interference copper clad laminate has excellent electrical properties: 1. It can almost maintain a constant dielectric constant in the entire radio frequency range up to 110GHz,...

AI Technical Summary

Problems solved by technology

[0004] At present, the biggest disadvantage of the lamination of LCP interference copper clad laminates is the high production cost of LCP interference copper clad laminates, mainly due to the high cost of high temperature and high pressure lamination equipment, and the price of the corresponding roll-to-roll lamination equipment is as little as 9 million RMB , up to 80 million RMB

The traditional sheet-shaped high-temperature and high-pressure lamination equipment only costs about 3 million RMB, but the LCP interference copper clad laminates produced by the supporting traditional lamination auxiliary materials and lamination parameters have air bubbles, uneven surface, and low peel strength.

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