Ceramic material of middle-low temp. sintered temp stable type multirayer ceramic capacitor |
Title: |
Ceramic material of middle-low temp. sintered temp stable type multirayer ceramic capacitor |
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Application Number: |
200410090868 |
Application Date: |
2004/11/16 |
Announcement Date: |
2005/06/08 |
Pub. Date: |
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Publication Number: |
1623955 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
C04B 35/468, C04B 35/63 |
Applicant(s): |
Tsinghua Univ. |
Inventor(s): |
Wang Xiaohui, Chen Renzheng, Ma Chao |
Key Words: |
Ceramic material, middle-low temp. sintered, temp stable type, multirayer ceramic capacitor |
Abstract: |
A ceramic material used for X7R-model multi-layer ceramic capacitor with medium or low sinter temp and high temp stability is prepared from barium titanate and the additive chosen from cobalt oxide and niobium oxide, or their compound, yttrium oxide, RE oxide, Ag, zinc oxdie and boron oxide, or their compound. It has dielectric constant of 1800-5600, capacitance-temp variation rate less than +/-15%, and sinter temp of 900-1150 deg.C. |
Claim: |
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Priority: |
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PCT: |
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