Lead-free glass composition, glass composite material, glass paste, sealing structure, electrical/electronic component and coated component
US10913680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2017 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Aug 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8722
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The purpose of the present invention is to provide a lead-free glass composition in which crystallization is suppressed and which has a low softening point. This lead-free glass composition is characterized by containing silver oxide, tellurium oxide and vanadium oxide, and further containing at least one compound selected from among yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, gallium oxide, indium oxide, iron oxide, tungsten oxide and molybdenum oxide as an additional component, and in that the content values (mol %) of silver oxide, tellurium oxide and vanadium oxide satisfy the relationships Ag2O>TeO2≥V2O5 and Ag5O≤2V2O5 when calculated in terms of the oxides, and in that the content of TeO2 is 25-37 mol. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.