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US 2026/0290660 A1Published application
Thick film resistor
AssigneeSumitomo Metal Mining Co., Ltd.
InventorKatsuhiro KAWAKUBO
Life of this patent
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Abstract
A thick film resistor includes ruthenium oxide and glass. The ruthenium oxide has a rutile type crystal structure. The ruthenium oxide satisfies Lc/La of 0.6885 or greater, when an a-axis lattice constant and a c-axis lattice constant of the ruthenium oxide as measured by X-ray diffraction are determined as La and Lc, respectively. The ruthenium oxide has a crystallite size of 10 nm or greater and 80 nm or less.
Claims3
A thick film resistor comprising:
- ruthenium oxide;
- and
- glass,
- wherein the ruthenium oxide has a rutile type crystal structure,
- the ruthenium oxide satisfies a ratio Lc/La set to 0.6885 or greater, when an a-axis lattice constant and a c-axis lattice constant of the ruthenium oxide as measured by X-ray diffraction are determined as La and Lc, respectively, and
- the ruthenium oxide has a crystallite size of 10 nm or greater and 80 nm or less.
3 more elements
Dependencies are inferred from the claim text.