COMPOSITION FOR THICK FILM RESISTOR, PASTE FOR THICK FILM RESISTOR, AND THICK FILM RESISTOR

• Main Author: MAKUTA FUJIO
• Format: Patent
• Language: English; Japanese
• Published: 23.01.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; ELECTRICITY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; RESISTORS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

To provide a thick film resistor substantially free of lead while having good electrical characteristics of low current noise and having a desired resistance and TCR.SOLUTION: A conductive component includes at least one selected from ruthenium dioxide, calcium ruthenate, strontium ruthenate, and barium ruthenate. A glass component is substantially free of lead and contains bismuth oxide in an amount of 1% by mass or more and 5% by mass or less. Such a composition for a thick film resistor, a paste for the thick film resistor, and the thick film resistor are provided.SELECTED DRAWING: None 【課題】所望の抵抗値およびＴＣＲを有しながら、電流ノイズが小さいという、良好な電気的特性を有しながら、鉛を実質的に含まない厚膜抵抗体を提供する。【解決手段】導電性成分は、二酸化ルテニウム、ルテニウム酸カルシウム、ルテニウム酸ストロンチウム、およびルテニウム酸バリウムから選択される少なくとも１種を含み、ガラス成分は、鉛を実質的に含まず、かつ、酸化ビスマスを１質量％以上５質量％以下含有する、厚膜抵抗体用組成物、厚膜抵抗体用ペースト、および厚膜抵抗体が提供される。【選択図】なし