阅读说明：本技术 液晶高分子扰性覆铜板及其制作方法 (Liquid crystal polymer disturbing copper-clad plate and manufacturing method thereof ) 是由 房兰霞 郭建君 虞成城 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种液晶高分子扰性覆铜板及其制作方法,制作方法包括将第一铝箔、第一PE膜、第一铝箔、第一离型膜、第一铜箔、液晶高分子薄膜、第二铜箔、第二离型膜、第二铝箔、第二PE膜和第二铝箔依次进行叠放,得到堆叠结构；将所述堆叠结构进行真空高温层压,得到所述液晶高分子扰性覆铜板。采用铝箔、PE膜和离型膜作为压合铺材,可以耐受更高的温度；PE膜可起到填充作用,铝箔的涨缩可控,有利于制备得到表面平整和剥离强度高的液晶高分子扰性薄膜；本发明可采用传统的片状高温高压压合设备进行压合,制作成本低。(The invention discloses a liquid crystal polymer flexible copper-clad plate and a manufacturing method thereof, wherein the manufacturing method comprises the steps of sequentially stacking a first aluminum foil, a first PE film, a first aluminum foil, a first release film, a first copper foil, a liquid crystal polymer thin film, a second copper foil, a second release film, a second aluminum foil, a second PE film and a second aluminum foil to obtain a stacking structure; and carrying out vacuum high-temperature lamination on the stacked structure to obtain the liquid crystal polymer disturbing copper-clad plate. The aluminum foil, the PE film and the release film are used as laminating paving materials, so that the high-temperature-resistant laminated wood can resist higher temperature; the PE film can play a filling role, the expansion and contraction of the aluminum foil are controllable, and the preparation of the liquid crystal polymer flexible film with smooth surface and high peel strength is facilitated; the invention can adopt the traditional sheet high-temperature high-pressure pressing equipment for pressing and has low manufacturing cost.)

1. A method for manufacturing a liquid crystal polymer flexible copper-clad plate is characterized in 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 sequentially stacked to obtain a stacked structure; and carrying out vacuum high-temperature lamination on the stacked structure to obtain the liquid crystal polymer disturbing copper-clad plate.

2. The method for manufacturing the liquid crystal polymer disturbing copper-clad plate according to claim 1, wherein the vacuum high-temperature lamination comprises a pre-vacuum treatment, a pre-pressing treatment, a lamination treatment, a curing treatment and a cooling treatment which are sequentially performed.

3. The method for manufacturing the liquid crystal polymer disturbing copper-clad plate according to claim 2, wherein the temperature of the pre-vacuum treatment is 70-170 ℃, the pressing pressure is 0-1 MPa, and the time is 150-210 min.

4. The method for manufacturing the liquid crystal polymer disturbing copper-clad plate according to claim 2, wherein the pre-pressing treatment temperature is 70-170 ℃, the pressing pressure is 3-7 MPa, and the time is 10-30 min.

5. The method for manufacturing the liquid crystal polymer flexible copper-clad plate according to claim 2, wherein the laminating treatment temperature is 300-350 ℃, the pressing pressure is 1-5 MPa, and the time is 30-90 min.

6. The method for manufacturing the liquid crystal polymer flexible copper-clad plate according to claim 2, wherein the curing temperature is 260-340 ℃, the pressing pressure is 1-5 MPa, and the time is 60-120 min.

7. The method for manufacturing the liquid crystal polymer flexible copper-clad plate according to claim 2, wherein the pressing pressure of the cooling treatment is 1-5 MPa, and the time is 30-90 min.

8. A liquid crystal polymer disturbed copper clad laminate is characterized in that the liquid crystal polymer disturbed copper clad laminate is manufactured according to the manufacturing method of the liquid crystal polymer disturbed copper clad laminate of any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of electrical materials, in particular to a liquid crystal polymer disturbing copper-clad plate and a manufacturing method thereof.

Background

With the development requirement of high frequency and high speed, the Dk and Df values of the traditional PI flexible copper clad plate material can not meet the electrical property requirement. LCP (Liquid Crystal Polymer) flexible copper clad laminate is a high frequency material, has low Dk and Df values, and can meet the requirements of high frequency and high speed times. LCP is a novel thermoplastic polymer material, and can realize high-frequency high-speed transmission on the premise of ensuring higher reliability.

LCP perturbative copper-clad plates have excellent electrical properties: 1. the constant dielectric constant can be almost kept in the whole radio frequency range up to 110GHz, and the stability is good; 2. the loss tangent is very small, only 0.002, and is increased to only 0.0045 even at 110GHz, which is very suitable for millimeter wave application; 3. low water absorption rate and can be used as an ideal high-frequency packaging material. At present, LCP (liquid Crystal on silicon) flexible copper-clad plates are mainly applied to the fields of high-frequency circuit substrates, COF (chip on film) substrates, multilayer plates, IC (integrated circuit) packaging, high-frequency connectors, antennas, loudspeaker substrates and the like.

The biggest defect of the current stitching of the LCP disturbing copper-clad plate is that the production cost of the LCP disturbing copper-clad plate is high, the stitching equipment mainly has high temperature and high pressure, the price of the corresponding roll-to-roll stitching equipment is less, 900 million RMB is obtained, and more, 8000 million RMB is obtained. The traditional sheet high-temperature high-pressure laminating equipment only needs about 300 million RMB, but the matched traditional laminating auxiliary material and LCP (liquid Crystal Polymer) flexible copper-clad plate pressed by the laminating parameters have bubbles in appearance, uneven surface and low peel strength.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the liquid crystal polymer disturbing copper-clad plate and the manufacturing method thereof are provided, and the manufacturing cost is low and the peel strength is high.

In order to solve the technical problems, the invention adopts the technical scheme that:

a method for manufacturing a liquid crystal polymer interference copper-clad plate comprises the steps of sequentially stacking 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 to obtain a stacked structure; and carrying out vacuum high-temperature lamination on the stacked structure to obtain the liquid crystal polymer disturbing copper-clad plate.

The invention adopts another technical scheme that:

a liquid crystal polymer disturbing copper-clad plate is manufactured according to the manufacturing method of the liquid crystal polymer disturbing copper-clad plate.

The invention has the beneficial effects that: the aluminum foil, the PE film and the release film are used as laminating paving materials, so that the high-temperature-resistant laminated wood can resist higher temperature; the PE film can play a filling role, the expansion and contraction of the aluminum foil are controllable, and the preparation of the liquid crystal polymer flexible film with smooth surface and high peel strength is facilitated; the invention can adopt the traditional sheet high-temperature high-pressure pressing equipment for pressing and has low manufacturing cost.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.

The most key concept of the invention is as follows: the aluminum foil, the PE film and the release film are used as laminating paving materials, and the laminating can be carried out by adopting the traditional sheet-shaped high-temperature high-pressure laminating equipment, so that the manufacturing cost is low.

A method for manufacturing a liquid crystal polymer interference copper-clad plate comprises the steps of sequentially stacking 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 to obtain a stacked structure; and carrying out vacuum high-temperature lamination on the stacked structure to obtain the liquid crystal polymer disturbing copper-clad plate.

From the above description, the beneficial effects of the present invention are: the aluminum foil, the PE film and the release film are used as laminating paving materials, so that the high-temperature-resistant laminated wood can resist higher temperature; the PE film can play a filling role, the expansion and the contraction of the aluminum foil are controllable, and the preparation of the liquid crystal polymer flexible film with smooth surface and high peel strength is facilitated. The traditional sheet high-temperature high-pressure pressing equipment adopts the pressing paving materials of kraft paper, a buffer film and TPX, can only resist the high temperature of 200 ℃, the processing temperature of the liquid crystal polymer material is about 300 ℃, the expansion and shrinkage are not easy to control, and the traditional pressing paving materials cannot be adopted for processing. According to the invention, after the laminated paving material is replaced, the traditional flaky high-temperature high-pressure laminating equipment can still be adopted to process and manufacture the liquid crystal polymer flexible film, so that the manufacturing cost is low.

Further, the vacuum high-temperature lamination comprises a pre-vacuum treatment, a pre-pressing treatment, a lamination treatment, a curing treatment and a cooling treatment which are sequentially carried out.

Compared with the traditional pressing process, the pre-pressing treatment process is added, so that the obtained disturbing copper-clad plate is higher in peel strength and better in smoothness.

Further, the temperature of the pre-vacuum treatment is 70-170 ℃, the pressing pressure is 0-1 MPa, and the time is 150-210 min.

Further, the temperature of the pre-pressing treatment is 70-170 ℃, the pressing pressure is 3-7 MPa, and the time is 10-30 min.

Further, the laminating treatment temperature is 300-350 ℃, the pressing pressure is 1-5 MPa, and the time is 30-90 min.

As can be seen from the above description, the temperature of the pre-press process is lower than the lamination process, but the pressure is higher.

Further, the curing treatment temperature is 260-340 ℃, the pressing pressure is 1-5 MPa, and the time is 60-120 min.

Further, the pressing pressure of the cooling treatment is 1-5 MPa, and the time is 30-90 min.

The invention relates to another technical scheme which is as follows:

a liquid crystal polymer disturbing copper-clad plate is manufactured according to the manufacturing method of the liquid crystal polymer disturbing copper-clad plate.