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Method for preparing electrode altitude difference absorption dielectric paste and laminated ceramic electronic components

A technology of electrode height and electronic components, applied in the direction of fixed capacitor dielectrics, laminated capacitors, printed circuit components, etc., can solve the problems of thickness fluctuation of paste printing, low solubility of ethyl cellulose, etc., to prevent chip erosion , The effect of improving peelability and suppressing wrinkles

Inactive Publication Date: 2012-05-09
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, since these dihydroterpineol and dihydroterpineol acetate have low solubility in ethyl cellulose used as an organic binder, pastes obtained using these solvents have problems such as fluctuations in printing thickness, etc.

Method used

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  • Method for preparing electrode altitude difference absorption dielectric paste and laminated ceramic electronic components
  • Method for preparing electrode altitude difference absorption dielectric paste and laminated ceramic electronic components
  • Method for preparing electrode altitude difference absorption dielectric paste and laminated ceramic electronic components

Examples

Experimental program
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Effect test

Embodiment approach

[0108] Embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments in any way, and various changes can be made without departing from the gist of the present invention.

[0109] For example, in the above-mentioned embodiment, the laminated ceramic capacitor was exemplified as the laminated ceramic electronic component of the present invention, but it goes without saying that the laminated ceramic electronic component of the present invention is not limited to the laminated ceramic capacitor, and may be Applicable to multilayer ceramic substrates, etc.

Embodiment 1

[0113] First, a dielectric paste for forming a ceramic green sheet is produced.

[0114] Preparation of Dielectric Paste

[0115] Prepare BaTiO 3Ceramic-like powder, polyvinyl butyral (PVB) as an organic binder, and methanol as a solvent. Next, 10 parts by weight of the organic binder and 150 parts by weight of the solvent were weighed with respect to 100 parts by weight of the ceramic powder, kneaded by a ball mill, and slurried to obtain a dielectric paste.

[0116] Production of Ceramic Green Sheets

[0117] The above-mentioned dielectric paste was applied to a predetermined thickness on a PET film by a knife coating method, and dried to form a ceramic green sheet having a thickness of 3 μm after drying.

[0118] Compatibility test of solvent and ceramic green sheet (room temperature, dropwise)

[0119] The ceramic green sheet produced above was peeled off from the PET film, and then attached to a glass slide with double-sided adhesive tape. Next, at room tempera...

Embodiment 2

[0136] Production of Organic Carriers

[0137] Prepare ethyl cellulose as an organic binder and the solvents shown in Table 3.

[0138] Next, 10 parts by weight of the organic binder was dissolved in 100 parts by weight of the solvent to prepare an organic vehicle.

[0139] Evaluation of tanδ

[0140] The tan δ (dynamic viscoelasticity) is the tan δ value when a stress of 10 Pa is applied to the obtained organic vehicle measured with a viscosity / viscoelasticity measuring device (Leostress RS1, manufactured by Eiko Seiki Co., Ltd.) at a frequency of 0.628 rad / s. The results are shown in Table 3. The lower the tanδ value, the more elastic and difficult to level. On the other hand, the higher the tanδ value, the less elastic and easier to level. Therefore, it can be considered that the larger the tanδ value, the better the dynamic viscoelasticity, that is, the better the leveling property , the higher the solubility.

[0141] [table 3]

[0142] table 3

[0143] ...

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Abstract

The printing past used for absorption of electrode height difference for making laminated ceramic electronic part, the characteristic of which is that it contains ceramic powder and organic carrier and is used combinedly with ceramic young tablet containing butyral resin whose thickness is below 5 micrometer. The main composition of solvent in the organic carrier is 1, 2-propylene glycol diacetate. Even the ceramic young tablet is thinned, tablet etching can be prevented effectively by using the printing past used for absorption of electrode height difference of the invention.

Description

technical field [0001] The present invention relates to a printing paste for absorbing differences in electrode height used in the production of laminated ceramic electronic components and a method for producing a laminated ceramic electronic component using the paste. Background technique [0002] A multilayer ceramic capacitor, which is an example of a multilayer ceramic electronic component, usually forms a ceramic green sheet using a dielectric paste on a carrier sheet by a doctor blade method, etc., and prints a conductive paste for internal electrode formation on it in a predetermined pattern. This was dried to form an internal electrode pattern. Then, the ceramic green sheets are peeled off from the carrier sheet, and laminated to a desired number of layers. [0003] Here, two lamination methods are known: a method of peeling a ceramic green sheet from a carrier sheet before lamination (sheet method) and a method of peeling a carrier sheet after lamination pressure b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/30H01G4/008H01F17/00H05K1/09
CPCH01B1/20H01G4/12H01G4/30H05K1/092
Inventor 三浦秀一小田和彦丸野哲司
Owner TDK CORPARATION
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