Dielectric constant measuring method and system

A dielectric constant and measurement method technology, applied in the field of dielectric constant measurement method and system, can solve the problems of increased production loss, unqualified dielectric constant, etc., and achieve the effect of increasing production loss

Inactive Publication Date: 2020-07-03
青岛零频新材料科技有限公司
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Problems solved by technology

[0005] A method and system for measuring the dielectric constant provided by this application can solve the problem that the evaluation method for the dielectric constant of copper-clad laminates in the prior art is to measure the dielectric constant under the condition of destroying the product, which not only increases the Production loss, there will also be problems with unsampled finished products and unqualified dielectric constants

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  • Dielectric constant measuring method and system
  • Dielectric constant measuring method and system

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Embodiment Construction

[0025] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0026] Dielectric constant is not only an important factor to be considered by circuit designers of communication components, if the dielectric constant of the copper clad laminate used in communication components is out of the control range, the performance of the entire communication component will also be out of the control range. Th...

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Abstract

The invention provides a dielectric constant measuring method and system which are applied to a copper-clad plate, wherein the copper-clad plate comprises a first copper foil layer and a second copperfoil layer, and a dielectric layer is arranged between the first copper foil layer and the second copper foil layer. The method comprises the steps of transmitting an input signal with a specific frequency to the first copper foil layer of the copper-clad plate; obtaining a reflected signal of the copper-clad plate, wherein the reflected signal is a signal obtained after the input signal penetrates through the first copper foil layer and the dielectric layer and then is reflected by the second copper foil layer; obtaining the resonance frequency of the copper-clad plate according to the inputsignal and the reflected signal; and obtaining the dielectric constant of the copper-clad plate according to the resonant frequency. The dielectric constant measuring method provided by the embodiment of the invention solves the problems that the method for evaluating the dielectric constant of the copper-clad plate in the prior art measures the dielectric constant under the condition that a product is damaged, not only increases the production loss of the product, but also results in unqualified dielectric constant due to the existence of non-sampled finished product.

Description

technical field [0001] The present application relates to the technical field of dielectric constant measurement, in particular to a method and system for measuring dielectric constant. Background technique [0002] The dielectric constant has characteristics determined by the composition and composition ratio of various substances, and the characteristics such as the speed of propagation and the frequency response of parts are also different with the difference in dielectric constant; currently, in order to make the output of communication elements The characteristics of the circuit need to use the calculation method of the dielectric constant to design the length and width of the circuit. Copper-clad laminates are commonly used materials for communication components. Therefore, the evaluation of dielectric constant is an essential measurement process in the production of copper-clad laminates. [0003] In the prior art, the evaluation method of the dielectric constant of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26
CPCG01R27/2617
Inventor 王海彬
Owner 青岛零频新材料科技有限公司
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