Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Casting of film
Patent
1996-07-16
1998-03-31
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Casting of film
264669, 264165, 264166, C04B 3332
Patent
active
057334994
ABSTRACT:
A ceramic green sheet includes ceramic particles having a spherical diameter of 0.01-0.5 .mu.m of a primary particle as a ceramic component, an average degree of aggregation of 10 or less, wherein the ceramic green sheet contains at most 1 vol % of secondary particles having a diameter of 20 .mu.m or more and has a surface roughness (Ra) of 0.2 .mu.m or less. A method for producing a ceramic substrate having a thickness of 30 .mu.m or less includes the steps of: preparing a ceramic slurry by mixing a ceramic powder with an organic binder and at least one organic solvent, and adjusting a viscosity to be within the range of 100-10,000 mPa's; removing coarse aggregated particles from the ceramic slurry; molding the ceramic slurry into a ceramic green sheet by a reverse roll coater method; and firing the ceramic green sheet so that an average crystal grain size be 2 .mu.m or less.
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Maeda Takahiro
Nanataki Tsutomu
Takeuchi Yukihisa
Yamamoto Hisanori
Derrington James
NGK Insulators Ltd.
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