United states low dielectric sealing glass powder for miniature radio-frequency glass insulator

US12098096B2 · kind B2 · utility

Assignee

• CNBM RESEARCH INSTITUTE FOR ADVANCED GLASS MATERIALS GROUP CO., LTD. · CN

Inventors

• Shou Peng · Shanghai, CN
• Chong Zhang · Chandler, US
• Weiwei WANG · Beijing, CN
• Changqing Li · Bloomington, US
• Jinwei Li · Wuxi, CN
• Xiaofei Yang · Qidong, CN
• Gang Zhou · Berkeley Heights, US
• Zhenkun Ke · Bengbu, CN
• Xin Hua Cao · Tianjin, CN
• Chuanli Shan · Bengbu, CN
• Jia NI · Bengbu, CN
• Jiedong Cui · Bengbu, CN
• Fengyang Zhao · Bengbu, CN
• Zhaojin Zhong · Bengbu, CN
• Pingping Wang · Shanghai, CN
• Qiang Gao · Huangyang, CN
• Na HAN · Seoul, KR
• Lifen Shi · Bengbu, CN
• Yong Yang · Bengbu, CN

Key dates

• Filing date: Apr 24, 2022
• Grant date: Sep 24, 2024
• Expiry date: Apr 24, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2205/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A low dielectric sealing glass powder for a miniature radio-frequency glass insulator is made of the following raw materials expressed in molar percentages: SiO2: 70.5-74.0%, B2O3: 20.5-23.5%, Ga2O3: 0.5-2.0%, P2O5: 0.25-2.0%, Li2O: 0.4-6.0%, K2O: 0.1-1.5%, LaB6: 0.05-1.0%, and NaCl: 0.03-0.3%. The raw material components are simple, and the preparation method is easy to implement. The dielectric constant and dielectric loss of the prepared glass powder are low, and the melting and molding temperature is low, which are convenient for large-scale industrial production. The melting and molding temperature of the low dielectric sealing glass powder ranges from 1320° C. to 1360° C., and the obtained glass has a dielectric constant ranging from 3.8 to 4.1 and a dielectric loss ranging from 4×10−4 to 10×10−4 at a frequency of 1 MHz, and a sealing temperature ranging from 900° C. to 950° C.