Title:
PORCELAIN COMPOSITION WHICH HAS LOW DIELECTRIC CONSTANT AND METHOD FOR MANUFACTURING IT
Document Type and Number:
Japanese Patent JP3909366
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a porcelain composition which can be sintered at a low temperature, which has a low dielectric constant and small loss in the high frequency wave zone, and whose temperature dependency is small, and a method for manufacturing the composition.
SOLUTION: The porcelain composition which has a low dielectric constant contains, in terms of oxides in mass %, SiO2 of 18.0-40.0%, ZnO of 30.0-54.0%, Bi2O3 of 1.0-6.0%, MgO of 1.0-6.0%, TiO2 of 4.0-12.4%, Li2O of 0.2-1.1%, K2O of 3.0-7.4% and CuO of 0.5-3.7%. The method for manufacturing the porcelain composition comprises carrying out the wet blending with a ball mill of powder raw materials consisting of prescribed quantities of the oxides, drying and calcining at 700-900°C the blended raw materials, and thereafter pulverizing and sizing the calcined materials, and then kneading and forming the sized materials on adding a binder, and printing electric conductors or the like and carrying out the lamination or the like, and finally carrying out the sintering at 800-950°C.
Inventors:
Toshifumi Yamamoto
Yoshio Tsukiyama
Yoshio Tsukiyama
Application Number:
JP2001254877A
Publication Date:
April 25, 2007
Filing Date:
August 24, 2001
Export Citation:
Assignee:
Sumitomo Metal Electro Device Co., Ltd.
MURATA MANUFACTURING CO.,LTD.
MURATA MANUFACTURING CO.,LTD.
International Classes:
C04B35/453; H01B3/12; (IPC1-7): C04B35/453; H01B3/12
Domestic Patent References:
| JP63151658A | ||||
| JP11012037A | ||||
| JP6290636A | ||||
| JP63265858A | ||||
| JP63112454A |
Attorney, Agent or Firm:
Mikiji Sugioka
Terutada Hogami
Michio Mori
Terutada Hogami
Mikiji Sugioka
Terutada Hogami
Michio Mori
Terutada Hogami
Mikiji Sugioka