RESISTANCE PASTE AND RESISTIVE ELEMENT PREPARED FROM THE RESISTANCE PASTE

• Main Author: MAKUTA FUJIO
• Format: Patent
• Language: English; Japanese
• Published: 25.01.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; RESISTORS; 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 resistive element having excellent electrical characteristics with small current noise while having a high resistance value, and an inexpensive lead-free resistance paste to be materials therefor.SOLUTION: A resistance paste substantially consists of a conductive particle composed of lead-free oxide including ruthenium, lead-free glass frit, an organic vehicle, and an additive. As the additive, at least one of tin oxide, hafnium oxide and indium oxide is contained by 0.2 mass% or more and 7.0 mass% or less in total.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安価な鉛フリーの抵抗ペーストを提供する。【解決手段】 ルテニウムを含む鉛フリーの酸化物からなる導電性粒子と、鉛フリーのガラスフリットと、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、該添加剤として酸化錫、酸化ハフニウム及び酸化インジウムのうちの少なくとも１種を合計で０.２質量％以上７.０質量％以下含有している。【選択図】 なし