CN101271785B - Method for manufacturing ceramic electronic component, and gravure printing method - Google Patents
Method for manufacturing ceramic electronic component, and gravure printing method Download PDFInfo
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- CN101271785B CN101271785B CN200810095834XA CN200810095834A CN101271785B CN 101271785 B CN101271785 B CN 101271785B CN 200810095834X A CN200810095834X A CN 200810095834XA CN 200810095834 A CN200810095834 A CN 200810095834A CN 101271785 B CN101271785 B CN 101271785B
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Abstract
A method of a ceramic electronic element includes: a step of preparing strip synthetic sheet, forming ceramic raw sheet on the support membrane of the synthetic sheet; the first intaglio printing step of printing the first paste in the first area of the printing area on the ceramic raw sheet through the intaglio printing method; and the second intaglio printing step of printing the second paste in the second area of the printing area on the ceramic raw sheet through the intaglio printing method; wherein in the first intaglio printing step, the first mark is formed on the ceramic raw sheet or the support membrane; controlling the printing position in the first intaglio printing step, so that the result obtained from the first intaglio printing step and the result obtained from the second intaglio printing step form an expected position relation; in the second intaglio printing step, the second mark is formed on the ceramic raw sheet or the support membrane; the expected passing time difference of the first, second marks is compared with the calculated passing time difference of the first, second marks, and the result is carried out the second intaglio printing step.
Description
The application's application number that to be the applicant submit on February 23rd, 2004 for " 200410007020.8 ", denomination of invention divides an application for the application for a patent for invention of " ceramic electron element manufacture method and woodburytype ".
Background of invention
1. invention field
The present invention relates to make the method for ceramic electron elements such as multi-layer capacitor, relate in particular to and be included in the ceramic electron element manufacture method of printing the improvement intaglio printing step of conductive paste on the ceramic green sheet.
2. description of Related Art
For example in the multilayer ceramic capacitor manufacture process, used woodburytype and placed printing ceramic paste and conductive paste on the ceramic green sheet of support membrane.
Japanese laid-open patent application publication 8-250370 has disclosed a kind of method of making multilayer ceramic capacitor, wherein by the woodburytype of using first gravure roll on placing the medium raw cook of a rectangular support membrane, form multiple in electrode pattern, and form a kind of step by the woodburytype of using second gravure roll and eliminate (step-reducing) medium pattern, with the space between electrode pattern in filling.
In said method, on rectangular medium raw cook, utilize gravure roll form in electrode pattern and step eliminate the medium pattern, displacement (along the displacement perpendicular to the direction of medium raw cook direction of transfer) usually appears along medium raw cook width.
Above-mentioned on the medium raw cook, print under the situation of electrode pattern and step elimination medium pattern, when the displacement that occurs along medium raw cook width, interior electrode pattern and step are eliminated the position that the medium pattern is not formed at expectation, because these two kinds of patterns are overlapped or the interval of the two is excessive.
Therefore, before second intaglio printing step,, proofread and correct along the displacement of medium raw cook width by second gravure roll is axially promptly moved along the width of medium raw cook along it.
So as shown in figure 17, the step of distortion is eliminated the generation of medium pattern 101b, depends on the motion sequential of gravure roll.With reference to Figure 17, rectangular medium raw cook 102 places on the support membrane, and support membrane transmits by the direction of arrow A.In addition, arrow B illustrates print direction, and C represents the shift position of gravure roll.Gravure roll turns around, and promptly prints off each printed patterns 101a～101c.
Another problem is that according to the time that gravure roll moves, the thickness that step is eliminated medium pattern 101b changes.
As mentioned above, when step elimination medium pattern occurred distortion with varied in thickness, step was eliminated the medium pattern and is not reached its original purpose, has eliminated interior electrode pattern step on every side, the fault of construction of laminated sheets such as delamination can occur.
In addition, in the process of making multilayer ceramic capacitor, the above-mentioned woodburytype of eliminating ceramic paste with printing conductive cream and step is similar, and the multicolour photogravure method also exists and displacement occurs and be difficult to realize the polychrome problem of high definition.
Summary of the invention
For solving above-mentioned all problems, the all preferred embodiments of the present invention provide a kind of method of manufacturing ceramic electronic component, comprise the step that on sheet, is coated with conductive paste or step elimination ceramic paste with intaglio printing, thereby with high-precision correction displacement, and prevented that step from eliminating the distortion of ceramic paste and conductive paste.
The method of the present invention's first preferred embodiment comprises: preparation process, be used to prepare a rectangular answer print, and comprise the ceramic green sheet on support membrane and the film; First intaglio printing step utilizes intaglio printing that ceramic green sheet is coated with first cream in the ceramic green sheet first area; With second intaglio printing step, in the ceramic green sheet second area, utilize intaglio printing that ceramic green sheet is coated with second cream, and in first intaglio printing step, on ceramic green sheet or support membrane, form first marking.A comparison is done with the position of its expectation in the position of first marking that first intaglio printing step is formed, and carries out second intaglio printing step by comparative result again.
As mentioned above, first preferred embodiment according to the present invention, after first intaglio printing step, making comparisons in the position of first marking that first intaglio printing step is formed and the position of its expectation, and carries out second intaglio printing step by comparative result.Therefore, in first and second intaglio printing step, ceramic green sheet or support membrane are coated with first and second cream respectively, the printed patterns that the printed patterns that second intaglio printing step forms forms with regard to relative first intaglio printing step is with hi-Fix.
In the ceramic electron element manufacture method of first embodiment of the invention, ceramic green sheet moves the back or moves along its width and/or length according to comparative result when, carry out second intaglio printing step.
The position that forms according to first marking and its desired locations poor, when when ceramic green sheet is carried out second intaglio printing step after width and/or length move or when moving, the printed patterns that second intaglio printing step forms is just made hi-Fix with respect to the printed patterns of first intaglio printing step formation.
In addition, in the ceramic electron element manufacture method of the present invention's first preferred embodiment, preferably measure the position of first marking with first imaging device and first image processing equipment.Like this, can measure the position of first marking accurately.
Moreover, in the ceramic electron element manufacture method of the present invention's first preferred embodiment, in second intaglio printing step, preferably on ceramic green sheet or support membrane, form second marking.Like this, the position of the position of first and second marking that forms respectively in first and second intaglio printing step and their expectations does one relatively, repeats second intaglio printing step according to comparative result.
In the case, after first intaglio printing step, by the position of feedfoward control adjusting ceramic green sheet, then after second intaglio printing step, according to the physical location of first and second marking, regulate the position of first and second marking accurately by FEEDBACK CONTROL.Therefore, carry out first and second intaglio printing step with higher precision.
In addition, in the ceramic electron element manufacture method of the present invention's first preferred embodiment, preferably detect second intaglio printing step used be arranged on second marking type element on the dull and stereotyped cylinder, measure the position of second marking.
Playing element and measured second stamp positions that is formed on ceramic green sheet or the support membrane by second marking on the dull and stereotyped cylinder of being arranged on that detects that second intaglio printing step uses, and during by comparative result execution first or second intaglio printing step of the desired locations of first and second markings and its physical location, can more promptly measure the position of first and second markings and make comparisons with desired locations.Therefore, can more promptly regulate the position of ceramic green sheet to second intaglio printing step.
Second preferred embodiment according to the present invention, the method for manufacturing ceramic electronic component comprises: preparation process prepares a rectangular answer print that comprises support membrane and place the ceramic green sheet on the support membrane; First intaglio printing step is coated with first cream by intaglio printing to the ceramic green sheet in the ceramic green sheet first area; With second intaglio printing step, by intaglio printing the ceramic green sheet in the ceramic green sheet second area is coated with second cream, in first intaglio printing step, on ceramic green sheet or support membrane, form first marking.The time of passing through of formed first marking of first intaglio printing step and the time of passing through of its expectation are made comparisons, carry out second intaglio printing step by comparative result.
As mentioned above, second preferred embodiment according to the present invention, the time of passing through of first marking that first intaglio printing step forms and the time of passing through of its expectation make comparisons, and carry out second intaglio printing step by comparative result.Therefore, similar to the present invention's first preferred embodiment, the printed patterns that second intaglio printing step forms can be located accurately with respect to the printed patterns that first intaglio printing step forms.
In the ceramic electron element manufacture method of the present invention's second preferred embodiment, ceramic green sheet by comparative result after its width and/or length move, or ceramic green sheet is just being carried out second intaglio printing step by comparative result when its width and/or length move.
After ceramic green sheet moves or when moving, its width and/or length carries out second intaglio printing step by time and its expectation by the difference of time by the reality of first marking, thereby when printing second marking with the expectation of first and second marking by the time difference of time after first marking, the printed patterns that second intaglio printing step forms can be located accurately with respect to the printed patterns that first intaglio printing step forms.
And, in the ceramic electron element manufacture method of the present invention's second preferred embodiment, preferably measure passing through the time of first marking with the first sensor and first measuring equipment.Like this, can measure passing through the time of first marking accurately.
In addition, in the ceramic electron element manufacture method of the present invention's second preferred embodiment, second intaglio printing step preferably forms second marking on ceramic green sheet or support membrane.Like this, passing through the time of first and second marking that first and second intaglio printing step can be formed respectively made comparisons by the time with their expectation, and repeated second intaglio printing step by comparative result.
Moreover, in the ceramic electron element manufacture method of the present invention first or second preferred embodiment, first and/or second marking along the yardstick of ceramic green sheet length preferably along the ceramic green sheet change width.Like this, be convenient to measure passing through the time of first and second marking with single-sensor.
In addition, in the ceramic electron element manufacture method of the present invention first or second preferred embodiment, first and second cream is respectively that conductive paste and step are eliminated ceramic paste, or the two all is a conductive paste.
To the detailed description of all preferred embodiments, it is clearer that further feature of the present invention, key element, characteristic, step and advantage will become by with reference to the accompanying drawings.
Brief description
Figure 1A is the schematic plan view that the printed printed patterns of first and second intaglio printing step and first and second marking are shown, and Figure 1B is the schematic plan view that first marking is shown, and Fig. 1 C is the schematic plan view that first and second marking relation is shown;
Fig. 2 illustrates the schematic diagram that is used to measure the equipment of first and second stamp positions according to a preferred embodiment of the present invention;
Fig. 3 illustrates the perspective illustration of second gravure roll along its axial displacement;
Fig. 4 illustrates the schematic representation of apparatus that is used to carry out first and second intaglio printing step of execution that all preferred embodiments of the present invention use;
Fig. 5 A and 5B are respectively first and second gravure roll perspective views;
Fig. 6 illustrates the schematic diagram that according to the present invention all preferred embodiments make the equipment that second gravure roll moves along its axis;
Fig. 7 is the schematic plan view that according to the present invention all preferred embodiments state after placing ceramic green sheet on the support membrane to experience first and second intaglio printing step is shown;
Fig. 8 illustrates according to the present invention all preferred embodiments placing in first and second intaglio printing step and printed the schematic sectional view that conductive paste and step are eliminated the state after the ceramic paste on the ceramic green sheet on the support membrane;
Fig. 9 A is the cutaway view of female laminated sheet of obtaining of all preferred embodiments of the present invention, and Fig. 9 B is the cutaway view of the multilayer ceramic capacitor that obtains of all preferred embodiments of the present invention;
Figure 10 illustrates the schematic diagram of measuring the equipment of first and second stamp positions according to the present invention in all preferred embodiment first correction examples;
Figure 11 is the schematic plan view that the first printed marking of example is revised in all preferred embodiments first of the present invention;
Figure 12 is the schematic plan view that the second printed marking of example is revised in all preferred embodiments first of the present invention;
Figure 13 illustrates the schematic diagram of measuring the equipment of first and second stamp positions according to the present invention in all preferred embodiment second correction examples;
Figure 14 illustrates according to the present invention all preferred embodiment second to revise the printed printed patterns of first and second intaglio printing step in the example and the schematic plan view of first and second marking;
Figure 15 A and 15B illustrate respectively in all preferred embodiment second correction examples of the present invention and measure the step of first and second marking by the time;
Figure 16 illustrates according to the present invention all preferred embodiment the 3rd to revise and measure on second gravure roll second indicia print element in the example by the perspective illustration of the step of time; With
Figure 17 is illustrated in the schematic plan view that printing conductive cream and step in a kind of known ceramic electron element autofrettage are eliminated the step of ceramic paste.
The detailed description of preferred embodiment
A preferred embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 4 is a schematic diagram, and the multilayer ceramic capacitor manufacturing installation according to a preferred embodiment of the present invention is shown.
In laminated ceramic electronic component manufacturing installation 1, answer print 2 is pressed arrow B direction transmission among the figure.This answer print 2 comprises support membrane and ceramic green sheet placed on it, and support membrane is made of synthetic resin such as polyethylene terephthalate, polypropylene and poly-naphthalene dicarboxylic acids second diester etc.Manufacturing installation 1 comprises first and second intaglio printing unit 3 and 4, carries out first and second intaglio printing step respectively, in each step the one side of answer print 2 is printed.
The first intaglio printing unit 3 comprises first gravure roll 5 and the first coining roller 6 that limits dull and stereotyped cylinder.Shown in Fig. 5 A, this figure is the perspective view of gravure roll 5, and gravure roll 5 is cylindrical, comprises along first 7a of Printing Department of its periphery 5a setting with along its axially extended pre-fixed gap 5b.For electrode in printing conductive cream on ceramic green sheet and the formation, arranged the recess 7b of a plurality of substantial rectangular at the 7a of Printing Department with array pattern, the direction of rotation that makes them be arranged essentially parallel to gravure roll 5 is extended.Each recess 7b comprises a plurality of little lattice (not shown), and each little lattice is surrounded by the wall of substantial rectangular.The shape of recess 7b is not limited to rectangle basically corresponding to the shape of electrode required in the laminated ceramic electronic component.Though Fig. 5 A only illustrates a 7a of Printing Department, also two or more Printing Departments can be set.
Except first 7a of Printing Department, the periphery 5a of first gravure roll 5 also is provided with the first indicia print element 7c, is used to print proofread and correct answer print along the first used marking of its direction of transfer displacement, and this describes below again.The shape of indicia print element 7c is not done special restriction.In addition, be provided with the first triggered mark printed element 7d in indicia print element 7c front along print direction.
In first intaglio printing step, answer print 2 passes through between the gravure roll 5 of the first intaglio printing unit 3 and coining roller 6, and the conductive paste (first cream) that conductive paste feeder (not shown) infeeds in the recess 7b of the 7a of Printing Department is transferred on the answer print 2.This conductive paste mixes by the conductive powder will be for example be made up of Ag, Ag-Pd, Ni, Cu, Au or other suitable conductive powder and organic carrier.
The first intaglio printing unit 3 also comprises roller 8a～8e, and they are arranged in delivers to position between gravure roll 5 and the coining rod 6 to answer print 2, and answer print 2 is sent to this position by roller 8a～8e.In addition, also be provided with roller 8f, by it the answer print 2 that is printed on conductive paste on it is delivered to first drying equipment 9, and the latter comprise that a suitable heater is used to make the conductive paste drying that is imprinted on the answer print 2 in gravure roll 5 back.
In addition, be provided with roller 10a and 10b, after the conductive paste drying, answer print 2 delivered to the second intaglio printing unit 4 in drying equipment 9 downstreams.The second intaglio printing unit 4 comprises second gravure roll 11 and the second coining roller 12 of carrying out intaglio printing.
Shown in Fig. 5 B, be similar to first gravure roll, 5, the second gravure roll 11 and be essentially cylindrical, comprise along second 11b of Printing Department of its periphery 11a setting with along its axially extended pre-fixed gap 11g.
For on answer print 2 not the zone of printing conductive cream printing step eliminate ceramic paste, the 11b of Printing Department comprises a plurality of projection 11c and a grid shape groove 11d, the shape of projection 11c is substantially identical with shape corresponding to the printing conductive cream of the conductive paste position of printing, and lattice shape groove 11d surrounds and infeeds the projection 11c that step is eliminated ceramic paste.Though Fig. 5 B only illustrates a 11b of Printing Department, also two or more Printing Departments can be set.
Be similar to first gravure roll 5,, also be provided with the second indicia print element 11f that prints second marking, be used to proofread and correct the displacement of answer print along its direction of transfer at the periphery 11a of second gravure roll 11 except second 11b of Printing Department.Shape to indicia print element 11f is not done special restriction.In addition, be provided with the second triggered mark printed element 11e at the second indicia print element 11f along the front of print direction.
In second intaglio printing step of eliminating step, the answer print 2 that is printed on conductive paste on it passes through between the gravure roll 11 of the second intaglio printing unit 4 and coining roller 12, and step paste for eliminating feeder (not shown) infeeds step in the groove 11d of the 11b of Printing Department and eliminates ceramic paste (second cream) and be transferred on the answer print 2.This step is eliminated ceramic paste and is made by ceramic powder such as for example dielectric ceramic, magnetic ceramics, glass ceramics or other suitable ceramic powder are mixed with organic carrier.
Roller 13a～13e and compensation rod 28 are arranged in delivers to position between gravure roll 11 and the coining roller 12 to answer print 2.
In addition, be provided with roller 15a and 15b, export along the arrow C direction through the answer print 2 of first and second intaglio printing unit 3 and 4 printing treatment of carrying out in the downstream of second drying equipment 14.
As shown in Figure 6, this preferred embodiment according to the present invention, second gravure roll 11 is linked to each other with mobile device 20, the latter moves along its axis gravure roll 11, so that the conductive paste of proofreading and correct the printing of the first intaglio printing unit 3 and the step of the second intaglio printing unit, 4 printings are eliminated the displacement of broad ways between the ceramic paste (perpendicular to the direction of answer print transmission).Though not shown among Fig. 6, mobile device 20 comprises a reciprocal drive source, can make gravure roll 11 move along its axis the distance of expectation according to the signal of slave controller 24 inputs.This reciprocal drive source can be a back and forth driving arrangement such as cylinder and hydraulic cylinder, or is the reciprocating drive mechanism that combines by motor and rack and pinion.
Fig. 2 illustrates the schematic diagram according to the major part of a system of this preferred embodiment, is used to control the position of gravure roll 11 along its axial position and answer print 2 along its length.As shown in Figure 2, trigger the front that the transducer 21 and first camera 22 are positioned at second gravure roll 11.Trigger transducer 21 and detect first triggered mark, camera 22 is taken first marking, and the two all is connected to first image processor 23, and the latter connects controller 24.
When triggering transducer 21 detection triggered mark, controller 24 order that just first marking is taken in 22 outputs to camera.Then, image processor 23 is handled first marking image that camera 22 obtains, and will indicate the signal input controller 24 of first stamp positions.
In addition, be provided with triggering transducer 25, second camera 26 and second image processor 27 in the downstream of second gravure roll 11.Trigger second triggered mark that transducer 25 detects 11 printings of second gravure roll, camera 26 is taken second marking.Image processor 27 connects controller 24.When the signal indicating triggering transducer 25 of controller 24 receptions detected second triggered mark after second intaglio printing step, controller 24 just drives second camera 26 made it take second marking.Image processor 27 is handled the image that second camera 26 is taken, and will indicate the signal input controller 24 of second stamp positions.
Next, except above-mentioned all accompanying drawings, the laminated ceramic electronic component manufacture method of present embodiment is described with reference to Figure 1A～1C and Fig. 3 below.
Figure 1A is the schematic plan view of answer print 2 after having carried out first and second intaglio printing step.In Figure 1A, support membrane width (perpendicular to the yardstick of the diagram direction of arrow) equates substantially with the ceramic green sheet width, but the ceramic green sheet width also can make support membrane stretch out ceramic green sheet from its both sides less than the support membrane width.Also can on support membrane, print first and second triggered mark and first and second marking this moment.
First triggered mark 33 and first marking 34 are printed in first intaglio printing step.Shown in Figure 1B, after first intaglio printing step, only print first marking 34 in two markings.Second triggered mark 35 and second marking 36 are printed in second intaglio printing step.
As shown in Figure 2, in this preferred embodiment, after first intaglio printing step and before second intaglio printing step, image processor 23 is measured the position of first marking 34.More particularly, when triggering transducer 21 detections first triggered mark 33, controller 24 drives first camera 22 makes it take first marking 34, again with its physical location input controller 24.
The physical location that controller 24 calculates first marking 34 of said determinations pre-deposits desired locations poor of controller 24 with it, move answer print 2 according to the alternate position spike of calculating, make first and second marking 34 shown in Fig. 1 C and 36 becoming separately and equating with R of expecting along width and length respectively apart from Q apart from q and r.Realize that by above-mentioned mobile device 20 and compensation rod 28 answer print 2 moves.More particularly, above-mentioned mobile device 20 realizes along the moving of ceramic green sheet width, and realizes eliminating the alternate position spike along length along the moving of its length by the position of regulating compensation rod 28.
Therefore, before implementing second intaglio printing step, mobile answer print, the position of optimizing first and second marking concerns.More particularly, even first marking departs from desired locations, relative first marking of second marking is imprinted on the accurate position.Therefore, in second intaglio printing step of carrying out afterwards, the printed patterns that forms with respect to first intaglio printing step is formed on printed patterns on the desired locations with high accuracy.More particularly, can prevent displacement between the printed patterns that first and second intaglio printing step forms reliably.
In this preferred embodiment, though ceramic green sheet moved by mobile device 20 and compensation rod 28 before second intaglio printing step, it also can move during second intaglio printing step.More particularly, ceramic green sheet can move in the middle of second intaglio printing, thereby has improved the precision of second intaglio printing step of carrying out afterwards.Especially in second intaglio printing step when length is printed a plurality of printed patterns, by mobile ceramic green sheet in the zone between printed patterns, can prevent the distortion of the printed patterns of second intaglio printing step printing.
But in this preferred embodiment, use second intaglio printing step of gravure roll 11 after having moved ceramic green sheet, to carry out.
In second intaglio printing step, print off the triggered mark 35 shown in Figure 1A and second marking 36.When the position probing of triggering transducer 25 in second gravure roll, 11 downstreams went out second triggered mark 35, controller 24 made it take second marking 36 with regard to drives camera 26.So image processor 27 is measured the position of second marking 36 and its input controller 24.
The desired locations of second marking 36 is stored in the controller 24 in advance.Controller 24 compares the position and the desired locations that is stored in first and second marking of 24 li of controllers of actual first and second markings of printing in first and second intaglio printing step, and mobile ceramic green sheet is to eliminate difference therebetween.
Because ceramic green sheet moves, thereby has eliminated the difference of first and second stamp positions of actual printing with its desired locations of storing in advance, obviously improved the precision of first and second intaglio printing step of carrying out afterwards after second intaglio printing step.But in the present invention, need not use the FEEDBACK CONTROL of second marking, as long as carry out the feedfoward control of using first marking.
In this preferred embodiment, move and regulate the position of compensation rod 28 by make gravure roll 11 with mobile device 20 along the ceramic green sheet width, can be exactly with between first and second marking 34 and 36 along the distance of width and length be transferred to respectively expectation apart from Q and R.Therefore, shown in Fig. 7 and 8, in second intaglio printing step, the printed patterns that forms with respect to first intaglio printing step is imprinted on accurate position to printed patterns.In other words, printing conductive cream and step are eliminated ceramic paste exactly, make their phase non-overlapping copies.
As shown in Figure 8, in the answer print 2 that has experienced above-mentioned first and second intaglio printing step, on support membrane 71, form ceramic green sheet 72.In addition, electrode 73 in forming on ceramic green sheet in first intaglio printing step forms step and eliminates ceramic member 74 in second intaglio printing step.Among Fig. 8, though interior electrode 73 and step eliminate ceramic member 74 arrange tight, between the two predetermined space can be set, perhaps also step can be eliminated ceramic member 74 be arranged in interior 73 weeks of electrode along with the width of interior electrode 73 overlapping expectations.
Cut rectangular answer print 2 with the cutting head (not shown), make to comprise ceramic green sheet 72, interior electrode 73 and separate with support membrane 71 with the film spare that step is eliminated ceramic member 74.Then, the above-mentioned film spare that obtains of stacking polylith in laminating bench or cutting head obtains the female laminated sheet 81 shown in Fig. 9 A.In female laminated sheet 81, a conventional ceramic raw cook is arranged at the bottom, and another piece conventional ceramic raw cook is also arranged at the top.
In addition, female laminated sheet 81 also can form like this: repeat the process of cutting rectangular answer print 2 along Printing Department, obtain card shape sheet spare, and it is pressed onto on the conventional ceramic raw cook on the laminating bench, support membrane 71 is faced up, and remove support membrane.
Cut female laminated sheet 81 along thickness then, obtain the laminated sheet unit, each laminated sheet unit is used to single multilayer ceramic capacitor, and by each laminated sheet unit of sintering, can obtain the ceramic component 92 of the sintering of Fig. 9 B.Then form external electrode 93 and 94, obtain multilayer ceramic capacitor 91 at ceramic component 92 two ends of sintering.Laminated sheet unit and external electrode 93 and 94 be sintering simultaneously.
In the manufacture method of multilayer ceramic capacitor 91, eliminate ceramic paste as printing conductive cream as described in the above-mentioned preferred embodiment and step, thereby obviously reduced the displacement of the two, eliminated the step of conductive paste component ambient.
Therefore, the fault of construction of sintered component such as delamination just can not occur, and have reduced ratio of defects effectively.
In addition, the present invention is not only applicable to multilayer ceramic capacitor, is applicable to various laminated ceramic electronic components yet, as inductor, noise filter, LC filter and the multilayer synthesis module of multilayer.In these occasions,, can obtain all circuit elements by in ceramic green sheet, forming through hole and connecting electrode pattern in the plane.
Example is revised in first of preferred embodiment.
Below with reference to Figure 10～12 the laminated ceramic electronic component manufacture method that example is revised in first of above-mentioned preferred embodiment is described.Except the structure of mensuration second stamp positions after second intaglio printing step, the structure of first to the 3rd following correction example is similar to above-mentioned preferred embodiment, thereby following the difference of describing above-mentioned preferred embodiment and all correction examples, save explanation to the structure that is similar to above-mentioned preferred embodiment.
As shown in figure 10, trigger transducer 41 and be connected image processor 27, trigger the triggered mark printed element 11e that transducer 41 detects on second gravure roll 11, the second indicia print element 11f that camera 42 is taken on second gravure roll 11 with camera 42.More particularly, in this correction example, the position of the second indicia print element 11f is measured with the triggered mark printed element 11e and the second indicia print element 11f, need not be imprinted on second triggered mark and second marking on the answer print.Then, the position input controller 24 of the second indicia print element 11f.
In this correction example, controller 24 also stores the desired locations of first and second marking.
In this correction example, first marking 34 is imprinted on the answer print, as shown in figure 11, and as above-mentioned preferred embodiment, the position input controller 24 of first marking 34.
Be similar to above-mentioned preferred embodiment, according to first marking, 34 positions of actual print, controller 24 moves ceramic green sheet, makes second marking be imprinted on first and second marking is respectively Q and R along the distance of width and length position.Therefore, ceramic green sheet moved on to a suitable position before second intaglio printing step.Therefore, in this correction example, even the printed patterns of the first intaglio printing step printing has displacement, the printed patterns that second intaglio printing step is printed off also can accurately be located with respect to the printed patterns that first intaglio printing step is printed off.
Then, in second intaglio printing step, when triggering the transducer 41 detections second triggered mark printed element 11e, camera 42 is taken the second indicia print element 11f shown in Figure 12, and with its positional information input controller 24.In addition, also the time input controller 24 of taking the second indicia print element 11f.Controller 24 is according to the positional information of receiving and the position of Time Calculation second marking.
In this correction example, be similar to above-mentioned preferred embodiment, mobile ceramic green sheet, the desired locations of eliminating first and second markings be pre-existing in 24 li of controllers with carry out second intaglio printing step difference between first and second stamp positions of actual print before.
Therefore, in second intaglio printing step, the printed patterns that relative first intaglio printing step of printed patterns is printed off is imprinted on position accurately.
In addition, measure the position of second triggered mark and second marking because of the second indicia print element 11f on the use triggered mark printed element 11e and second gravure roll 11, alternative use is imprinted on second triggered mark and second marking on the answer print, so the material of the image processing and second triggered mark and second marking is irrelevant.
For example, when second triggered mark and second marking by with answer print in the same ceramic material of ceramic green sheet when constituting, be imprinted on second triggered mark on the answer print and the image of second marking and often be difficult to handle.But when triggered mark printed element 11e and the second indicia print element 11f being made image and handle, between second gravure roll 11 and the triggered mark printed element 11e and the comparison between second gravure roll 11 and the second indicia print element 11f, irrelevant with the material of the triggered mark and the marking.
Remove the existing displacement that slides out between unprovoked second gravure roll 11 and the answer print, otherwise the position of triggered mark printed element 11e and the second indicia print element 11f is identical with the position that is imprinted on second triggered mark on the answer print and second marking.
The second preferable correction example
Describe second of above-mentioned preferred embodiment below with reference to Figure 13～16 and revise example.Revise in the example second, as shown in figure 14, it is the plane graph of answer print after second intaglio printing step, and after first and second intaglio printing step, first and second markings 51 and 52 are printed on the outside, Printing Zone.
First and second markings 51 and 52 yardsticks along answer print 2 length become with the position along answer print 2 width.More particularly, first and second marking 51 and 52 yardsticks along answer print 2 length are towards the center increase of answer print 2.Therefore, first and second marking 51 and 52 is all triangular in shape basically, and the base is towards the center of answer print 2.
In addition, as shown in figure 13, equipment 54 all was positioned at the front of second gravure roll 11 when first sensor 53 and first was surveyed.When first marking 51 passed through first sensor 53, the latter was switched on.Equipment 54 is measured the period that first sensors 53 are connected during first survey.More particularly, equipment 54 is measured passing through the time of first marking 51 during first survey, and promptly first marking 51 passes through the period of first sensor 53, and should period input controller 24.In addition, also the input controller 24 turn-on time of first sensor 53.
As mentioned above, first and second markings 51 and 52 sizes along answer print length become with the position along the answer print width.Therefore, by measuring first and second markings 51 and 52, can measure first and second markings 51 and 52 positions along width respectively by the period of first and second transducers 53 and 55.Below with reference to Figure 15 A, 15B and this situation of 16 more detailed descriptions.
Shown in Figure 15 A, when first marking 51 passes through first sensor 53, obtain the period i of first marking 51 by first sensor 53.In addition, shown in Figure 15 B, when second marking 52 passes through second transducer 55, obtain period u and input controller 24.Because of first and second markings 51 and 52 have above-mentioned shape, so when controller 24 received period i and u, controller 24 just calculated first and second markings 51 and 52 positions along the answer print width.Then according to result of calculation, draw between first and second markings 51 and 52 along the answer print width apart from w.Controller 24 is stored in the desired distance of printing off exactly in first and second intaglio printing step between first and second markings 51 and 52 o'clock resulting first and second markings 51 and 52 along width respectively.Therefore,, eliminate the poor of actual range between first and second markings 51 and 52 and the desired distance between them, just eliminated displacement reliably along width by move second gravure roll 11 with mobile device.
Except displacement, also eliminated displacement along its length along the ceramic green sheet width.
More particularly because transducer 53 and 55 also detects the moment of beginning measurement period I and u respectively, thereby also drawn between the marking 51 and 52 along length apart from v.Therefore, when between controller 24 storage first and second markings 51 and 52 during along the desired distance of length, by make compensation rod 28 move a segment distance (corresponding to above-mentioned along length desired distance and above-mentioned first and second markings 51 and 52 that obtain between poor along the distance of length), the recoverable ceramic green sheet in second intaglio printing step along the position of its length.
Example is revised in the 3rd of preferred embodiment
Revise in the example period that second marking 52 that second transducer 55 measurements, second gravure roll 11 is printed off passes through second.But as shown in figure 16, second transducer 55 also can be arranged in measure the second indicia print element 11h on the gravure roll 11 pass through period Ua.At this moment, during concerning on having measured intaglio plate rod 11 in advance between the actual print position of passing through the period Ua and second marking of the second indicia print element 11h, just can measure the printing position of second marking according to period Ua.It is the same that the 3rd other structure and second of revising example is revised example.
Other of preferred embodiment revised example
In above-mentioned all preferred embodiments, a camera is only settled in gravure roll 11 back, takes first and second markings.But the also available different camera of these two markings is taken.More particularly, except the camera of taking triggered mark, also can settle two cameras in second gravure roll, 11 back.
And, revise in the example second, can settle two transducers to measure the period that first and second markings pass through in second gravure roll, 11 back.
In addition,, move along its axis, can only control the position of answer print along its width by making the second intaglio plate rod according to the present invention.
In above-mentioned all preferred embodiments and correction example, first cream is conductive paste, and second cream is that step is eliminated ceramic paste.But first cream can be the step paste for eliminating also, and second cream is conductive paste.And the two can all be a conductive paste.As when difform electrode pattern is made of first and second cream, two kinds of cream all conduct electricity, and with the conductive paste formation structure of different materials, maybe will do twice coating.
The invention is not restricted to laminated ceramic electronic component, also be applicable to all methods of making other ceramic electron element.
The invention is not restricted to above-mentioned all preferred embodiments, can revise within the scope of the appended claims, the technology that the above-mentioned all embodiment of application capable of being combined are disclosed when needing.
Claims (10)
1. ceramic electron element manufacture method comprises:
The step for preparing rectangular answer print is formed with ceramic green sheet on the support membrane of described answer print;
First intaglio printing step is printed first cream by woodburytype to the first area in the printing zone on the described ceramic green sheet; And
Second intaglio printing step is printed second cream by woodburytype to the second area in the printing zone on the described ceramic green sheet,
In first intaglio printing step, on described ceramic green sheet or support membrane, form first marking,
Control the printing position in described second intaglio printing step, make resulting result of described first intaglio printing step and the resulting result of described second intaglio printing step form the position relation of expectation, it is characterized in that,
In second intaglio printing step, on described ceramic green sheet or support membrane, form second marking,
The time difference of passing through that time difference and first, second marking try to achieve of passing through of the expectation of first, second marking is made comparisons,
Carry out the second later intaglio printing step according to its result.
2. ceramic electron element manufacture method as claimed in claim 1 is characterized in that, uses the first sensor and first measuring equipment as the equipment of the time of passing through of measuring first marking,
Use second transducer and second measuring equipment equipment as the time of passing through of measuring second marking.
3. ceramic electron element manufacture method as claimed in claim 1 or 2 is characterized in that, being shaped as of first and/or second marking makes ceramic green sheet length direction yardstick change along the Width of ceramic green sheet.
4. ceramic electron element manufacture method as claimed in claim 1 or 2, it is characterized in that first cream and second cream are that conductive paste and step are eliminated ceramic paste, step is eliminated any combination in ceramic paste and conductive paste and conductive paste and these combinations of conductive paste.
5. ceramic electron element manufacture method as claimed in claim 3 is characterized in that, first cream and second cream are that conductive paste and step are eliminated ceramic paste, step is eliminated any combination in ceramic paste and conductive paste and conductive paste and these combinations of conductive paste.
6. a ceramic electron element manufacturing installation is characterized in that, comprising:
Be wound with the roller of answer print for supplying with rectangular answer print at outer peripheral face, be formed with ceramic green sheet on the support membrane of described answer print;
The first intaglio printing unit, this first intaglio printing unit prints first cream by woodburytype to the first area in the printing zone from the described ceramic green sheet of the described answer print of described roller output, and prints first marking;
The second intaglio printing unit, this second intaglio printing configuration of cells is printed second cream by woodburytype to the second area in the printing zone on the described ceramic green sheet at the back segment of the described first intaglio printing unit, and prints second marking;
First sensor, this first sensor is configured between described first, second intaglio printing unit, before the described second intaglio printing unit prints, measure first by the time, this first by the time comprise described first marking pass through the zero hour with by time durations as information;
Second transducer, this second sensor configuration be at the back segment of the described second intaglio printing unit, measures second by the time, this second by the time comprise described second marking pass through the zero hour with by time durations as information; And
Control appliance, this control appliance is stored first, second in advance and is passed through the time, first, second difference and described first, second difference by the time of storage in advance by the time is made comparisons, control the printing position of the described second intaglio printing unit according to its result, make the result of the print result of the described first intaglio printing unit and the described second intaglio printing unit form the position relation of expectation.
7. ceramic electron element manufacturing installation as claimed in claim 6 is characterized in that, also comprises: as the first sensor and first measuring equipment of the equipment of the time of passing through of measuring described first marking; And
Second transducer and second measuring equipment as the equipment of the time of passing through of measuring described second marking.
8. as claim 6 or 7 described ceramic electron element manufacturing installations, it is characterized in that being shaped as of first and/or second marking makes ceramic green sheet length direction yardstick change along the Width of ceramic green sheet.
9. as claim 6 or 7 described ceramic electron element manufacturing installations, it is characterized in that first cream and second cream are that conductive paste and step are eliminated ceramic paste, step is eliminated any combination in ceramic paste and conductive paste and conductive paste and these combinations of conductive paste.
10. ceramic electron element manufacturing installation as claimed in claim 8 is characterized in that, first cream and second cream are that conductive paste and step are eliminated ceramic paste, step is eliminated any combination in ceramic paste and conductive paste and conductive paste and these combinations of conductive paste.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-046068 | 2003-02-24 | ||
| JP2003046068 | 2003-02-24 | ||
| JP2003135656A JP4789400B2 (en) | 2003-02-24 | 2003-05-14 | Method for manufacturing ceramic electronic component and gravure printing method |
| JP2003-135656 | 2003-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100070208A Division CN100392780C (en) | 2003-02-24 | 2004-02-23 | Method for manufacturing ceramic electronic component and gravure printing method |
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| CN101271785A CN101271785A (en) | 2008-09-24 |
| CN101271785B true CN101271785B (en) | 2011-06-29 |
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| CN2008100958335A Expired - Lifetime CN101271784B (en) | 2003-02-24 | 2004-02-23 | Method for manufacturing ceramic electronic component, and manufacturing device therefor |
| CN200810095834XA Expired - Lifetime CN101271785B (en) | 2003-02-24 | 2004-02-23 | Method for manufacturing ceramic electronic component, and gravure printing method |
| CN2008100958284A Expired - Lifetime CN101271783B (en) | 2003-02-24 | 2004-02-23 | Method for manufacturing ceramic electronic component, and gravure printing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101328314B1 (en) * | 2011-05-26 | 2013-11-11 | (주)제이 앤 엘 테크 | Gravure Printing Engraving Roll and Manufacturing Method thereof |
| CN103021657B (en) * | 2012-12-31 | 2016-12-28 | 广东风华高新科技股份有限公司 | Electrode pattern printing process in chip multilayer ceramic capacitor |
| JP6146404B2 (en) * | 2014-12-11 | 2017-06-14 | 株式会社村田製作所 | Green sheet laminating equipment |
| JP6295941B2 (en) * | 2014-12-15 | 2018-03-20 | 株式会社村田製作所 | Electronic component manufacturing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105116A (en) * | 1986-03-05 | 1987-09-23 | 谭氏陶器有限公司 | Multilayer ceramic bar printing and assembly equipment |
-
2004
- 2004-02-23 CN CN2008100958335A patent/CN101271784B/en not_active Expired - Lifetime
- 2004-02-23 CN CN200810095834XA patent/CN101271785B/en not_active Expired - Lifetime
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105116A (en) * | 1986-03-05 | 1987-09-23 | 谭氏陶器有限公司 | Multilayer ceramic bar printing and assembly equipment |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-118038A 2002.04.19 |
| JP特开平11-8156A 1999.01.12 |
| JP特开平8-130154A 1996.05.21 |
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| CN101271783A (en) | 2008-09-24 |
| CN101271784A (en) | 2008-09-24 |
| CN101271783B (en) | 2011-04-13 |
| CN101271784B (en) | 2011-06-08 |
| CN101271785A (en) | 2008-09-24 |
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