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Ceramic green sheets and laminated ceramic electronic components

A technology for ceramic green sheets and ceramic materials, applied in ceramic molding machines, chemical instruments and methods, nanotechnology for materials and surface science, etc., can solve problems such as damage, difficulty in peeling, and reduced strength of ceramic green sheets, and achieve Effects of increasing transport speed, suppressing electrification adhesion, and reducing frictional electrification

Active Publication Date: 2016-03-16
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, reduction in the particle size of the ceramic material and thinning of the ceramic green sheet lead to a decrease in the strength of the ceramic green sheet, which makes it difficult to peel off the carrier film, for example. If it is peeled off, it is easy to cause damage and other problems during handling
It is generally considered that the detachability of ceramic green sheets is closely related to the chargeability of ceramic green sheets, and there is no description about the detachability of ceramic green sheets and the improvement of strength in the above-mentioned Patent Document 1.

Method used

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  • Ceramic green sheets and laminated ceramic electronic components
  • Ceramic green sheets and laminated ceramic electronic components
  • Ceramic green sheets and laminated ceramic electronic components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0144] Put 100g of barium titanate (average particle diameter calculated from BET specific surface area: 50nm) and 4.0g of dispersant B6 (active ingredient) into a 500mL container together with 500g of zirconia beads with a diameter of 1mm, add toluene / ethanol= A mixed solvent of 48 / 52 (volume ratio) was adjusted so that the solid content concentration of barium titanate was 50% by weight, and dispersion treatment was performed for 96 hours using a table-top bead mill.

[0145] Next, 14.0 g of polyvinyl butyral resin, 2.80 g of dioctyl phthalate, 1.0 g of cationic compound A1, and a mixed solvent of toluene / ethanol=48 / 52 (volume ratio) were added to the above dispersion treatment liquid, The solid content concentration of the barium titanate was adjusted to be 35% by weight, and the mixture was mixed for 2 hours with a benchtop bead mill, and then the zirconia beads were removed by filtration to obtain a ceramic slurry.

[0146] Next, the ceramic slurry was molded into a sheet...

Embodiment 2）

[0149] A ceramic green sheet was produced in the same manner as in Example 1 except that the cationic compound A2 was used instead of the cationic compound A1 in Example 1, and a multilayer ceramic capacitor was produced using the ceramic green sheet.

Embodiment 3）

[0151] A ceramic green sheet was produced in the same manner as in Example 1 except that the cationic compound A3 was used instead of the cationic compound A1 in Example 1, and a multilayer ceramic capacitor was produced using the ceramic green sheet.

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Abstract

Provided is a ceramic green sheet containing a basic ceramic, which has excellent antistatic properties, detachability and toughness. A ceramic green sheet for use in the formation of a ceramic layer (5) in a laminated ceramic capacitor (1), which contains a cationic compound that contains a cationic group represented by any one of general formulae (1) to (3). R1, R5, R6, R9 and R10 independently represent an alkyl group having 1 to 4 carbon atoms; and R2, R3, R4, R7, R8 and R11 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms (which may have a hydroxy group).

Description

technical field [0001] The present invention relates to a ceramic green sheet and a laminated ceramic electronic component manufactured using the ceramic green sheet, and in particular to an improvement for improving the handleability of a ceramic green sheet containing an alkaline ceramic material. Background technique [0002] For example, when manufacturing multilayer ceramic electronic components such as multilayer ceramic capacitors, ceramic slurry is formed into a sheet on a carrier film to obtain a ceramic green sheet, and then the ceramic green sheet is peeled off from the carrier film, and the ceramic green sheet is formed on the ceramic green sheet. Several steps of processing ceramic green sheets, such as printing a conductive pattern or stacking a plurality of ceramic green sheets. [0003] As a ceramic slurry for obtaining the above-mentioned ceramic green sheet, there is, for example, a ceramic slurry containing a basic ceramic material, a polymer dispersant, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622B28B1/30C04B35/632C09K3/16
CPCC04B35/6264B82Y30/00C04B35/4682C04B35/6261C04B35/632C04B35/6342C04B35/63424C04B35/6344C04B2235/3236C04B2235/448C04B2235/449C04B2235/5454C04B2235/6025C04B2235/96
Inventor 户上敬中野贤吉川宣弘稻家修一吉田宏之
Owner MURATA MFG CO LTD
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