Multilayer composite ceramic substrate: Fid-Bau Portal

Multilayer composite ceramic substrate

ZHOU KAIMOU / WU SIHAN / LAI ZHIWEI / SHI JIANYU

The invention discloses a multi-layer composite ceramic substrate, which comprises a nitride ceramic core layer, two composite layers and two ceramic coating layers, wherein the two composite layers are respectively formed on two opposite sides of the nitride ceramic core layer; the two ceramic coating layers are respectively formed on the two composite layers; and each ceramic coating layer is coated on the corresponding composite layer and is sintered and fixed with the nitride ceramic core layer together. Each ceramic coating layer and the nitride ceramic core layer are made of different materials (or are respectively made of the same materials with different crystal structures), and the materials of each composite layer comprise the material of the ceramic coating layer and the material of the nitride ceramic which are connected with the composite layer. The sum of the thicknesses of the two ceramic coating layers and the two composite layers is not larger than the thickness of the nitride ceramic core layer. Therefore, according to the multilayer composite ceramic substrate, through a specific layered structure, the multilayer composite ceramic substrate has composite performance, so that the application range of the multilayer composite ceramic substrate is expanded, and more diverse requirements are met.

本申请公开一种多层式复合陶瓷基板，其包含一氮化物陶瓷核心层、分别形成于氮化物陶瓷核心层相反两侧的两个复合层及分别形成于两个复合层的两个陶瓷披覆层。每个陶瓷披覆层涂布于相对应复合层、并共同与氮化物陶瓷核心层烧结固定。每个陶瓷披覆层与氮化物陶瓷核心层为不同材质(或是分别为具有不同结晶结构的相同材质)，并且每个复合层的材质包含其所连接的陶瓷披覆层的材质及氮化物陶瓷的材质。两个陶瓷披覆层与两个复合层的厚度总和不大于氮化物陶瓷核心层的厚度。據此，多层式复合陶瓷基板通过特定层状架构，以具备有复合性能，进而扩展其应用范围并符合更多元的要求。

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