Screen printing paste, screen printing method, and baked thick film body
AssigneeMurata Manufacturing Co., Ltd.
InventorMika Tagami
Life of this patent
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Abstract
A screen printing paste from which a fine pattern can be formed precisely is provided by setting the viscosity at a shear rate of 4 sec−1 to be not less than about 40 Pa·sec and the viscosity at a shear rate of 10 sec−1 to be not more than about 210 Pa·sec. It is preferable that the average particle diameter (D50) of solid components contained in the paste be less than about 10 μm. It is also preferable that the flowability of the paste be not more than about 0.011 rad when a stress of 10 Pa is applied to the paste for two minutes. A screen printing method using the paste and a baked thick film body formed with the paste are also provided.
Claims9
A screen printing method comprising printing a line pattern with a line width of not more than about 100 μm by applying a screen printing paste to an object to be printed using a screen printing plate so as to realize said pattern,
- wherein said screen printing paste comprises a solid component and a vehicle, the paste viscosity at a shear rate of 4 sec−1 is not less than about 40 Pa·sec, the paste viscosity at a shear rate of 10 sec−1 is not more than about 210 Pa·sec, and the flowability of the paste is not less than about 0 rad and not more than about 0.011 rad, wherein rad is the rotational angle of a 2 cm long×1° cone when a stress of a 10 Pa is applied to the paste using a Rheometer CSL1100 apparatus for two minutes.
Dependencies are inferred from the claim text.