Title:
GLASS-BASED AND GLASS-CERAMIC-BASED COMPOSITE
Document Type and Number:
Japanese Patent JP3387531
Kind Code:
B2
Abstract:
PURPOSE: To obtain a low dielectric constant, a low dissipation factor, and improved thermal expansiblity and mechanical strength by incorporating mullite bubbles dispersed in a glass matrix.
CONSTITUTION: Slurry (A) comprising a matrix is obtained by blending ingredients selected from the group of a liquid medium such as toluene, a plasticizer such as glycerol, a binder, mullite bubbles, glass powder based upon borosilicate, glass powder based upon aluminosilicate, glass-ceramic powder based upon aluminosilicate, etc. A molding (B) is obtained by molding the component (A) by using a tape injection mold, etc., and dried in air at 25-40°C to produce an unsinerted composite ceramic material which comprises a borosilicate-based glass powder matrix, an aluminosilicate-based glass-ceramic powder matrix, etc., contains 15-70 vol.% mullite bubbles of 1 to 50 μm in diameter, and has a dielectric constant of approximately 2 to 6 (1 MHz) at about 25°C.
Inventors:
Kyun Hwa Mo
Application Number:
JP27853592A
Publication Date:
March 17, 2003
Filing Date:
October 16, 1992
Export Citation:
Assignee:
Minnesota Mining and Manufacturing Company
International Classes:
C04B35/16; C03C10/04; C03C14/00; C04B38/08; H01L23/15; H05K1/03; (IPC1-7): C04B38/08; C03C14/00; H05K1/03
Domestic Patent References:
| JP4290492A | ||||
| JP7502245A |
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)
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