CBS-based LTCC material and preparation method thereof
US10160689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2017 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9615
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a CBS-based low-temperature co-fired ceramic (LTCC) material, and a preparation method thereof. The material has, as a main component, a sintered phase of low dielectric constant of CaSiO3 and CaB2O4, and comprises CBS and a dopant. The CBS comprises, by weight, 30-40% of CaO, 15-30% of B2O3, and 40-50% of SiO2, and the dopant comprises 0-2% of P2O5, 0-2% of nanometer CuO, and 0.5-2% of nanometer V2O5. The preparation method comprises mixing oxides including a CBS-based dielectric ceramic as a base and one or two of P2O5 and CuO as an initial dopant, and then adding V2O5 as a final sintering aid, to prepare the material. In the present invention, a CBS-based LTCC material that is obtained by sintering at a low temperature and has the advantages of low dielectric constant, low loss, and good overall performance is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.