Glass ceramic sintered body and wiring substrate
US-2021009463-A1 · Jan 14, 2021 · US
Glass ceramic sintered body and wiring substrate
US11267749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11267749-B2 |
| Application number | US-202016923531-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 8, 2020 |
| Priority date | Jul 8, 2019 |
| Publication date | Mar 8, 2022 |
| Grant date | Mar 8, 2022 |
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- Title
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Abstract
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A glass ceramic sintered body having a small dielectric loss in a high frequency band of 10 GHz or higher and stable characteristics against temperature variation and a wiring substrate using the same are provided. The glass ceramic sintered body contains crystallized glass, an alumina filler, silica, and strontium titanate. The content of the crystallized glass is 50 mass % to 80 mass %, the content of the alumina filler is 15.6 mass % to 31.2 mass % in terms of Al2O3, the content of silica is 0.4 mass % to 4.8 mass % in terms of SiO2, and the content of the strontium titanate is 4 mass % to 14 mass % in terms of SrTiO3.
First claim
Opening claim text (preview).
What is claimed is: 1. A glass ceramic sintered body comprising crystallized glass, an alumina filler, silica and strontium titanate, wherein the content of the crystallized glass is 50 mass % to 80 mass %, the content of the alumina filler is 15.6 mass % to 31.2 mass % in terms of Al 2 O 3 , the content of the silica is 0.4 mass % to 4.8 mass % in terms of SiO 2 , and the content of the strontium titanate is 4 mass % to 14 mass % in terms of SrTiO 3 . 2. The glass ceramic sintered body according to claim 1 , wherein the crystallized glass has a deposit of a diopside type oxide crystal phase containing at least Mg, Ca and Si. 3. A wiring substrate having an insulating base and a wiring conductor, wherein the insulating base consists of the glass ceramic sintered body according to claim 1 . 4. A wiring substrate having an insulating base and a wiring conductor, wherein the insulating base consists of the glass ceramic sintered body according to claim 2 .
Assignees
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Classifications
Chemical composition of glass · CPC title
containing SiO2, Al2O3 and MgO as main constituents · CPC title
- C03C14/004Primary
the non-glass component being in the form of particles or flakes · CPC title
- C03C10/0009Primary
containing silica as main constituent · CPC title
Inorganic insulating substrates, e.g. ceramic, glass · CPC title
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- What does patent US11267749B2 cover?
- A glass ceramic sintered body having a small dielectric loss in a high frequency band of 10 GHz or higher and stable characteristics against temperature variation and a wiring substrate using the same are provided. The glass ceramic sintered body contains crystallized glass, an alumina filler, silica, and strontium titanate. The content of the crystallized glass is 50 mass % to 80 mass %, the c…
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification C03C14/004. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 08 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).