An alumina ceramic substrate material, its preparation method and use
CN121107828BActive Publication Date: 2026-08-28CHENGDU HONGMING & UESTC NEW MATERIALS
Patent Information
- Application Number
- CN202511174583.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2045-08-21
AI Technical Summary
Technical Problem
制备过程中粉体团聚、成分偏析导致流延膜带边缘与中心区域应力差异引发微裂纹、烧后密度不均匀，烧结后分层、翘曲不平整、开裂等；后端加工时附着力不均匀等；介电性能波动过大导致器件局部过热，寿命下降，信号偏差，承载能力分散，安全系数降低等
Benefits of technology
（1）本发明中的氧化铝（纯度≥99.2%）陶瓷基片材料，其满足以下指标：介电常数为9.9±0.2（1MHz、1.9GHz、5.1GHz、10GHz、15GHz），介电损耗tanδ≤0.0003（1MHz、1.9GHz、5.1GHz、10GHz、15GHz），可制备大尺寸陶瓷基片（≥4inch）。
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Figure CN121107828B_ABST
Abstract
The application discloses an alumina ceramic substrate material and a preparation method and application thereof, relates to the technical field of functional ceramics, and comprises a modifier and a glass phase cooling agent, and according to the mass percentage, 99.2-99.6wt% of the alumina ceramic substrate material, 0.2-0.4wt% of the modifier and 0.1-0.4wt% of the glass phase cooling agent. S The ceramic substrate material has small dielectric performance fluctuation, the data deviation average value degree characterization index-standard deviation is within ±5%, the data fluctuation degree characterization index-coefficient of variation CV is less than 15%, and the ceramic substrate material has the characteristics of high strength.
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Citation Information
Patent Citations
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