Method of making multilayer electronic component

Abstract

A method of making a multilayer electronic component which can further improve a withstand voltage characteristic is provided. In the method of making a multilayer capacitor in accordance with the present invention, a sheet multilayer body is formed in a multilayer body forming step by laminating a plurality of electrode sheets and blank sheets formed in a sheet forming step. The sheet multilayer body is fired in a firing step, whereby a multilayer capacitor is obtained. The sheet multilayer body includes one blank sheet interposed between the electrode sheets. Namely, two green sheets are interposed between electrode patterns of the electrode sheets, whereby the green sheet thickness is substantially increased. The inventors have newly found that increasing the green sheet thickness by making the sheet multilayer body have such a structure is effective in improving the withstand voltage characteristic.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a view showing a ceramic green sheet in accordance with an embodiment of the present invention, in which parts (a) and (b) are plan and sectional views, respectively;

FIG. 2 is a view showing the ceramic green sheet and electrode patterns in accordance with the embodiment of the present invention, in which parts (a) and (b) are plan and sectional views, respectively;

FIG. 3 is a view showing a sheet series in accordance with the embodiment of the present invention, in which parts (a) and (b) are plan and sectional views, respectively;

FIG. 4 is a view showing a multilayer body and sheet multilayer body in accordance with the embodiment of the present invention, in which parts (a) and (b) are respective sectional views of the multilayer body and sheet multilayer body;

FIG. 5 is a view showing a firing step in a method of making a multilayer capacitor in accordance with the embodiment;

FIG. 6 is a view showing a sheet series different from that of FIG. 3, in which parts (a) and (b) are plan and sectional views, respectively; and

FIG. 7 is a view showing a multilayer body and sheet multilayer body different from those of FIG. 4, in which parts (a) and (b) are respective sectional views of the multilayer body and sheet multilayer body.

Claims

1. A method of making a multilayer electronic component, the method comprising: a sheet forming step of forming a first sheet constituted by a dried green sheet, and a second sheet constituted by a dried green sheet and an electrode pattern provided thereon;a multilayer body forming step of laminating a plurality of the first and second sheets, so as to form a sheet multilayer body including the first sheet interposed between the second sheets; anda firing step of firing the sheet multilayer body.

2. A method of making a multilayer electronic component according to claim 1, wherein the sheet forming step forms a sheet series including at least one first sheet positioned between the second sheets by cutting a long green sheet provided on a support; and wherein the multilayer body forming step forms the sheet multilayer body by successively laminating the first and second sheets in the order of arrangement in the sheet series formed on the support.

3. A method of making a multilayer electronic component according to claim 2, wherein the sheet series provided on the support has an equal pitch.

4. A method of making a multilayer electronic component according to claim 1, further comprising a sheet condition determining step of determining a thickness of the green sheet constituting the first and second sheets and a number of the first sheets positioned between the second sheets in the sheet multilayer body according to a desirable withstand voltage characteristic; wherein the sheet forming step forms the first and second sheets by using the green sheet having the thickness determined in the sheet condition determining step; andwherein the multilayer body forming step forms a sheet multilayer body interposing the first sheets between the second sheets by the number determined in the sheet condition determining step.