Invention Publication
- Patent Title: MODIFIED NI-TI-TA DIELECTRIC MATERIAL FOR MULTI-LAYER CERAMIC CAPACITOR AND LOW-TEMPERATURE PREPARATION METHOD THEREOF
-
Application No.: US18140424Application Date: 2023-04-27
-
Publication No.: US20230352239A1Publication Date: 2023-11-02
- Inventor: YuanYuan Yang , XiaoZhen Li , MengJiang Xing , YanLing Luo , HongYu Yang , QingYang Fan , Hao Li , YunSheng Zhao
- Applicant: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
- Applicant Address: CN Huzhou
- Assignee: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
- Current Assignee: Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China
- Current Assignee Address: CN Huzhou
- Priority: CN 2210472444.X 2022.04.29
- Main IPC: C04B35/626
- IPC: C04B35/626 ; C04B35/64 ; H01G4/12 ; H01G4/30
Abstract:
A modified Ni—Ti—Ta dielectric material for multi-layer ceramic capacitor (MLCC) and a low-temperature preparation method thereof are provided. By using characteristics that radii of the Cu2+ ion and (Al½Nb½)4+ ion are close to those of Ni and Ti elements, respectively, Cu2+, Al3+ and Nb5+ ions are introduced into a Ni0.5Ti0.5TaO4 matrix for partial substitution, a negative temperature coefficient of dielectric constant of -220±30 ppm/°C is provided while a sintering temperature is significantly reduced, and deterioration factors of loss caused by sintering aids is reduced, so that the dielectric material applied to radio frequency MLCC with low loss, low cost and good process stability is prepared.
Public/Granted literature
Information query
IPC分类:
