RESISTANCE PASTE AND RESISTOR PREPARED BY FIRING THE SAME

• Main Author: MAKUTA FUJIO
• Format: Patent
• Language: English; Japanese
• Published: 26.04.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PROBLEM TO BE SOLVED: To provide a lead-free thick film resist that has excellent electrical characteristics with a high resistance value and also a small current noise, or a lead-free resistance paste to be the material therefor.SOLUTION: A resistance paste substantially consists of a conductive particle composed of ruthenium dioxide, lead-free glass frit, an organic vehicle, and an additive. The resistance paste contains, as the additive, 5 mass% or more and 12 mass% or less of amorphous silica with a specific surface of 60 m/g or more and 125 m/g or less.SELECTED DRAWING: None 【課題】 高い抵抗値を有しながら電流ノイズの小さい良好な電気的特性を有する鉛フリーの厚膜抵抗体及びその材料となる鉛フリーの抵抗ペーストを提供する。【解決手段】 二酸化ルテニウムからなる導電性粒子と、鉛を含まないガラスフリットと、有機ビヒクルと、添加剤とで実質的に構成される抵抗ペーストであって、前記添加剤として比表面積６０ｍ２／ｇ以上１２５ｍ２／ｇ以下の非晶質シリカが５質量％以上１２質量％以下含まれている。【選択図】 なし