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Method of suction of object to be worked upon suction unit and method of manufacture of ceramic capacitor

A technology for ceramic capacitors and operating objects, which is applied in capacitor manufacturing, capacitors, laminated capacitors, etc., and can solve problems such as scratches on the adsorption surface and defective ceramic capacitors

Inactive Publication Date: 2012-10-10
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suction head is usually made of metal, but the suction surface is easily scratched due to the fine ceramic powder contained in the ceramic green sheet
This scratch becomes the cause of scratches on the ceramic green sheets that are subsequently adsorbed, resulting in defective ceramic capacitors.

Method used

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  • Method of suction of object to be worked upon suction unit and method of manufacture of ceramic capacitor
  • Method of suction of object to be worked upon suction unit and method of manufacture of ceramic capacitor
  • Method of suction of object to be worked upon suction unit and method of manufacture of ceramic capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] As the resin sheet A, a resin sheet (manufactured by Oxyfen Co., OxyDisk) having a plurality of through holes (opening diameter: 0.8 μm) formed on a non-porous substrate (thickness: 22 μm) made of PET by ion beam irradiation and etching was used. . The through hole is a straight hole having an axis in the thickness direction of the substrate and having a substantially constant inner diameter. The SEM image of the surface of the resin sheet is shown in Figure 6 middle. The Gurley number (Gurley number in the thickness direction) of the resin sheet measured in accordance with JIS P8117 was 2.7 seconds / 100 mL. The porosity of this resin sheet was 29.8% (area %). Based on the above-mentioned shape of the through-hole, the porosity of the resin sheet is set as the ratio of the area of ​​the opening of the through-hole to the surface of the resin sheet. This ratio is calculated|required by binarizing the SEM image of the surface of a resin sheet by image processing. The...

Embodiment 2

[0060] As the resin sheet A, a resin sheet (manufactured by Oxyfen Co., Ltd., OxyDisk) having a plurality of through holes (opening diameter: 10 μm) formed on a non-porous substrate (thickness: 22 μm) made of PET by ion beam irradiation and etching was used. The through hole is a straight hole having an axis in the thickness direction of the substrate and having a substantially constant inner diameter. The SEM image of the surface of the resin sheet is shown in Figure 7 middle. The Gurley number (Gurley number in the thickness direction) of the resin sheet measured in accordance with JIS P8117 was 0.06 sec / 100 mL. In addition, the porosity of this resin sheet was 11.4% (area %).

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Abstract

Disclosed is a method of suction of an object to be worked (15) upon a suction unit (14) and a method of manufacturing a ceramic capacitor, which employ a plastic sheet (11) being air permeable in the thickness dimension thereof as a suction sheet, having improved air permeability while maintaining a small diameter for the pores (aperture diameters) that are the air permeable paths for ensuring the air-permeability. The plastic sheet (11) is a non-porous sheet whereupon two or more through holes are formed that pass therethrough in the thickness direction. The through holes are straight holes that pass through the plastic sheet in direct lines. The diameter of the through hole is less than or equal to 20[mu]m. The air-permeability of the plastic sheet in the thickness direction is less than or equal to 10seconds / 100mL, a Gurley number measured in accordance with JIS P8117. Under the methods disclosed herein, the plastic sheet (11) is positioned upon the suction face of the suction unit (14).

Description

technical field [0001] The present invention relates to a method for adsorbing an object to be manipulated to a suction unit using a resin sheet that prevents the suction surface of the suction unit from directly contacting the object to be manipulated. Moreover, this invention relates to the manufacturing method of the ceramic capacitor using this resin sheet. Background technique [0002] With the spread of small electronic devices such as mobile phones, ceramic capacitors used in these devices are required to be smaller and have higher capacity. Ceramic capacitors are generally manufactured by laminating dielectric films (ceramic green sheets). As one of the methods for downsizing and increasing the capacity of ceramic capacitors, there is a method of thinning ceramic green sheets, and in recent years, ceramic green sheets thinned to a thickness of 1 to 2 μm have been put into practical use. [0003] The ceramic green sheet is formed by applying a dielectric paste to a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J15/06B28B11/00B65H5/14H01G4/30H01G13/00H01G4/12
CPCH01G13/00B25J15/0616H01G4/30
Inventor 森山顺一古山了橘俊光长井阳三
Owner NITTO DENKO CORP
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