KR960041122A

KR960041122A - High Frequency Dielectric Ceramic Composition

Info

Publication number: KR960041122A
Application number: KR1019950012805A
Authority: KR
Inventors: 김근영; 철 안
Original assignee: 김근영
Priority date: 1995-05-23
Filing date: 1995-05-23
Publication date: 1996-12-19

Abstract

본 발명은 유전율의 범위가 넓고, 유전손실이 낮으며, 유전체의 온도 특성을 제어할 수 있어 고주파 대역에서 회로소자, 기판 등으로 사용할 수 있는 유전체 세라믹 조성물에 관한 것이다.The present invention relates to a dielectric ceramic composition having a wide range of dielectric constant, low dielectric loss, and controlling temperature characteristics of the dielectric, which can be used as a circuit device, a substrate, and the like in a high frequency band.

고주파에서 유전체를 사용하기 위해서는 유전율이 크며 유전손실이 작아야 한다. 현재까지 개발된 이러한 요구 조건을 만족하는 유전체 세라믹들은 1300℃ 이상의 고온에서 소결하고 있기 때문에 제조비용 등에 문제가 있었다. 그러나, 본 발명에서는 비교적 낮은 온도에서 소결하여도 사용 가능하며, 소결온도 변화에 의해 공진 주파수의 온도계수를 변화시킬 수 있는 유전체 세라믹 조성물을 제시한다.To use the dielectric at high frequency, the dielectric constant must be large and the dielectric loss must be small. Dielectric ceramics satisfying these requirements, which have been developed so far, have been sintered at a high temperature of 1300 ° C. or higher, thus causing problems in manufacturing costs. However, the present invention provides a dielectric ceramic composition which can be used even at a relatively low temperature and can change the temperature coefficient of the resonance frequency by changing the sintering temperature.

이는 다음과 같은 조성식에 의해 세라믹 조성물을 제조함으로써 가능하다.This is possible by preparing a ceramic composition by the following compositional formula.

wMgO·xBaO·yNd₂O₃·zTiO₂ _{_{wMgO · xBaO · yNd 2 O 3}} · zTiO 2

(단 w+x+y+z=100)(W + x + y + z = 100)

Description

High Frequency Dielectric Ceramic Composition

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims

Barium oxide (BaO), magnesium oxide (MgO), titanium oxide (TiO ₂ ), neodymium oxide (Nd ₂ O ₃ ) as main components

_{_{wMgO · xBaO · yNd 2 O 3}} · zTiO 2

(W + x + y + z = 100)

A dielectric ceramic composition prepared by sintering the composition range of each component to 3 ≦ w ≦ 45, 1 ≦ x ≦ 14, 1 ≦ y ≦ 14, and 45 ≦ z ≦ 71, as in the above composition formula.

_{_{wMgO · xBaO · yNd 2 O 3}} · zTiO 2

(W + x + y + z = 100)

A dielectric resonator manufactured by sintering a composition range of each component to 3 ≦ w ≦ 45, 1 ≦ x ≦ 14, 1 ≦ y ≦ 14, and 45 ≦ z ≦ 71, in the same manner as in the above formula.

_{_{wMgO · xBaO · yNd 2 O 3}} · zTiO 2

(W + x + y + z = 100)

A substrate manufactured by sintering the composition range of each component to 3 ≦ w ≦ 45, 1 ≦ x ≦ 14, 1 ≦ y ≦ 14, and 45 ≦ z ≦ 71, as in the above composition formula.

※ Note: The disclosure is based on the initial application.