Glass fiber with high dielectric constant

Abstract

The invention discloses glass fiber with a high dielectric constant. The glass fiber comprises the following components in parts by weight: 35-45 parts of SiO2, 1-5 parts of B2O3, 15-25 parts of BaO, 10-20 parts of SrO and 10-20 parts of TiO2. The glass fiber with the high dielectric constant, which is disclosed by the invention, is excellent in process property and dielectric property and applicable to use as a reinforcing material of a small-sized printed circuit board since the wire drawing temperature of the glass fiber is less than 1080 DEG C and the dielectric constant of the glass fiber is 9-13 and the dielectric loss of the glass fiber is 3*10<-4>-9*10<-4> at the room temperature at the frequency of 1MHz.

Description

technical field [0001] The invention belongs to the technical field of printed circuit board materials, and in particular relates to a glass fiber with high dielectric constant. Background technique [0002] In the past ten years, due to the rapid development of the electronic information industry, the requirements for miniaturization and portability of electronic equipment and microwave circuits have become higher and higher, which requires the development of printed circuit boards in the direction of high capacity and miniaturization. Only the material of the printed circuit board has a high dielectric constant to meet this requirement. This is because the size of the device is inversely proportional to the dielectric constant of the material from which the device is made. Only a high dielectric constant can make the size of the device smaller. Printed circuit boards are usually made of resin and glass fiber. If a resin with a dielectric constant of 10 or more is used, the...

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Problems solved by technology

Noble metal oxide Nb 2 o 5 Significantly increased production costs, A1 2 o 3 The existence of the glass will lead to difficulty in melting the glass, which will also lead to an increase in production costs

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