Wide-dielectric constant polytetrafluoroethylene glass cloth coated copper foil plate

A technology of polytetrafluoroethylene and dielectric constant, applied in the direction of layered products, chemical instruments and methods, metal layered products, etc., can solve the problems of reducing the performance of the plate, insufficient surface insulation resistance, and difficult metallization of holes, etc. , to achieve the effect of enhancing the performance, reducing the difficulty, and expanding the dielectric constant

Inactive Publication Date: 2006-07-12
顾根山
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the dielectric layer of PTFE glass cloth copper clad board is alkali-free glass cloth with PTFE, its dielectric constant is 2.2, 2.7, the range of dielectric constant is relatively small, and the surface resistance is 1×10 4 MΩ, the volume resistance is 1×10 6 MΩcm, the su

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0008] Example 1, in figure 1 Among them, the preparation process of the wide dielectric constant PTFE glass cloth copper clad plate of the present invention is to mix the raw materials PTFE resin, ceramics and some organic auxiliary materials and then immerse, dry and sinter the dielectric layer 1 for several times. The organic auxiliary material is mainly tetrafluoroethylene film; after the surface treatment of the copper foil 2, the copper foil 2 is covered on both sides of the dielectric layer 1 under the conditions of high temperature and high pressure, and the mass ratio of the copper foil 2 to the dielectric layer 1 is 1. : 9.

Example Embodiment

[0009] In Embodiment 2, the dielectric layer 1 can also be set to several to dozens of layers according to requirements, and the rest of the preparation process is the same as in Embodiment 1.

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Abstract

The invention discloses a wide-dielectric constant polytetrafluoroethylene glass-plated copper foil plate, which comprises an intermediate layer 91) and a copper foil (2), wherein, the surfaces of intermediate layer (1) is copper foil (2), and the intermediate layer (1) is the isinglass composite glass cloth coated by miscible liquid coating. The intermediate layer is the isinglass glass cloth with polytetrafluoroethylene resin, ceramic and some miscible liquid coating of organic auxiliary material, therefore, it can reduce the loss angle tangent of intermediate, enlarge the dielectric constant of copper foil plate to 2.25, 2.7, 3.5, and 4.0, increase the volume electric resistance, surface resistance and surface insulating resistance, reduce the hardness of hole metallization to improve the usage property of sheet. The miscible liquid coating can be several or tens of layers to meet the demands of different users.

Description

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Claims

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Application Information

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Owner 顾根山
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