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Glass powder, dielectric material, sintered body, and high-frequency circuit member

A technology of dielectric material and glass powder, which is applied to printed circuit components, circuit substrate materials, circuits, etc., and can solve problems such as slow signal processing speed and large conductor loss

Active Publication Date: 2022-03-18
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alumina ceramics have a relatively high relative permittivity of 10, which has the disadvantage of slow signal processing.
In addition, alumina ceramics use tungsten, a metal with a high melting point, as the conductor material, so there is a disadvantage that the conductor loss increases

Method used

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  • Glass powder, dielectric material, sintered body, and high-frequency circuit member
  • Glass powder, dielectric material, sintered body, and high-frequency circuit member
  • Glass powder, dielectric material, sintered body, and high-frequency circuit member

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Embodiment

[0041] Hereinafter, the present invention will be described based on examples. It should be noted that the present invention is not limited by the following examples. The following examples are illustrative only.

[0042] Examples (sample Nos. 1-4, 7-12) and comparative examples (sample No. 5, 6) of the present invention are shown in Tables 1 and 2. It should be noted that the R in the table 2 O means Li 2 O+Na 2 O+K 2 O.

[0043] 【Table 1】

[0044]

[0045] 【Table 2】

[0046]

[0047] Each sample was prepared as follows. First, according to the glass composition in the table, mix glass raw materials of various oxides, mix them uniformly, put them in a platinum crucible and melt them at 1550-1650°C for 3-8 hours, and roll the obtained molten glass into a Thin plate. Next, after roughly pulverizing the obtained glass film, alcohol was added, wet pulverized by a ball mill, and classified so that the average particle diameter became 1.5 to 3 μm, thereby obtaining ...

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Abstract

The glass powder according to the present invention is characterized in that, in a glass powder comprising an alkali borosilicate glass, the glass composition contains 0.1 to 1.0 mol% of Li2O + Na2O + K2O (excluding 1.0 mol%), the molar ratio of Li2O / (Li2O + Na2O + K2O) is 0.35 to 0.65, the molar ratio of Na2O / (Li2O + Na2O + K2O) is 0.25 to 0.55, the molar ratio of K2O / (Li2O + Na2O + K2O) is 0.025 to 0.20, the relative dielectric constant at 25 DEG C and 16 GHz is 3.5 to 4.0, and the dielectric loss tangent at 25 DEG C and 16 GHz is 0.0020 or less.

Description

technical field [0001] The present invention relates to a glass powder, a dielectric material, a sintered body and a high-frequency circuit component having low relative permittivity and dielectric loss tangent in a high-frequency region above 10 GHz. Background technique [0002] Alumina ceramics are widely used as wiring boards and circuit components. However, alumina ceramics has a relatively high relative permittivity of 10, and has a disadvantage of slow signal processing speed. In addition, since alumina ceramics uses tungsten, which is a high-melting-point metal, as a conductor material, there is a disadvantage that the conductor loss increases. [0003] In order to make up for the shortcomings of alumina ceramics, dielectric materials containing glass powder and ceramic filler powder have been developed and used. For example, a dielectric material including glass powder containing alkali borosilicate glass has a relative permittivity of 6 to 8, which is lower than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/089C03C14/00C03B19/06
CPCC03C3/089C03C14/004C03B19/06C03C8/02C03C8/14C04B35/14C04B35/16H01B3/02H01B3/08H05K1/03H01B3/087H01B3/12C03C12/00C03C3/091C03C4/16C03C2204/00C03C2214/04C03C2214/30
Inventor 马屋原芳夫
Owner NIPPON ELECTRIC GLASS CO LTD