CN110459402A - A kind of multilayer ceramic capacitor - Google Patents
A kind of multilayer ceramic capacitor Download PDFInfo
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- CN110459402A CN110459402A CN201910805140.9A CN201910805140A CN110459402A CN 110459402 A CN110459402 A CN 110459402A CN 201910805140 A CN201910805140 A CN 201910805140A CN 110459402 A CN110459402 A CN 110459402A
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- main part
- lead division
- multilayer ceramic
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- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 51
- 239000000919 ceramic Substances 0.000 claims abstract description 60
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000792 Monel Inorganic materials 0.000 claims description 6
- 229910001252 Pd alloy Inorganic materials 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 241000826860 Trapezium Species 0.000 claims description 4
- DJOYTAUERRJRAT-UHFFFAOYSA-N 2-(n-methyl-4-nitroanilino)acetonitrile Chemical compound N#CCN(C)C1=CC=C([N+]([O-])=O)C=C1 DJOYTAUERRJRAT-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 20
- 238000007689 inspection Methods 0.000 abstract description 10
- 230000002950 deficient Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
Abstract
The invention discloses a kind of multilayer ceramic capacitor, the ceramic body includes mutually opposed upper and lower surfaces, mutually opposed first end face and second end face, mutually opposed first side and second side；The interior electrode is at least one, is layered in different ceramic dielectric layer surfaces；The interior electrode includes main part and lead division；The main part is rectangle, the lead division is trapezoidal, one bottom of the lead division has overlapping with first end face, another bottom of the lead division has overlapping with one end of the main part, the other end of the main part extends along the surface of ceramic dielectric layer to second end face, and has gap between second end face.Multilayer ceramic capacitor of the present invention, without laminated body is splitted be convenient to examine two cut direction cut inclined degree, it even can only examine the inclined degree of cutting in two cut direction simultaneously from a face of laminated body, the efficiency that inclined defective products is cut in inspection and sorting is higher.
Description
Technical field
The present invention relates to field of electrical components more particularly to a kind of multilayer ceramic capacitors.
Background technique
Usually in the processing procedure of multilayer ceramic capacitor, multiple ceramic diaphragms for being printed with interior electrode are laminated to form green compact
Then green sheet is compacted by being laminated, then is cut into the laminated body of cuboid one by one by substrate, multi-layer ceramics can be completed
The green compact of capacitor form.In cutting, due to cutting accuracy etc., can exist and cut inclined phenomenon.If cutting inclined lesser extent,
Cutting will not generally adversely affect partially；But if offset exceeds technique allowed band, there are reliability hidden danger for capacitor.
It is sorted out so inclined degree unacceptable defective products will be cut when cutting inclined in time.
Generally, that laminated body is examined by observing four sections of laminated body cuts inclined degree.Only due to interior electrode
It is drawn on two opposite sections of laminated body, the position on side can be drawn according to the interior electrode on the two faces to observe
One of cut direction cuts inclined degree.But the typically no interior electrode of other two opposite section of laminated body is drawn
Side or other identifier need to split in laminated body makes so another cut direction is cut inclined degree and can not be observed directly
Electrode exposing can just see, cut in this way examine partially it is very inconvenient, examine and sorting efficiency it is lower.
Summary of the invention
Based on this, a kind of multi-layer ceramics electricity is provided it is an object of the invention to overcome above-mentioned the deficiencies in the prior art place
Container.The multilayer ceramic capacitor examines that cut inclined degree more convenient in cutting processing procedure, can greatly improve to cut quality
Checkability and cut the efficiency of separation of inclined defective products.
To achieve the above object, the technical solution used in the present invention are as follows:
A kind of multilayer ceramic capacitor, including ceramic body, the first external electrode, the second external electrode, interior electrode, the ceramic body
For the cuboid being laminated by multiple ceramic dielectric layers, the ceramic body includes mutually opposed upper and lower surfaces, phase
Mutual opposed first end face and second end face, mutually opposed first side and second side；
The interior electrode includes at least one electrode and at least one the second inner electrode in first, in described first electrode and
The second inner electrode is alternately laminated in different ceramic dielectric layer surfaces；Electrode is connected with the first external electrode in described first, and
Electrode and the second external electrode insulate in described first；The second inner electrode is connected with the second external electrode, and in described second
Electrode and the first external electrode insulate；
Electrode includes the first main part in described first, and the second inner electrode includes the second main part, and described first is main
Body portion, the second main part are rectangle, and at least one of electrode, the second inner electrode are equipped with lead division in described first；
When electrode is equipped with lead division in described first, the lead division is trapezoidal a, bottom of the lead division and the
There is an overlapping in one end face, another bottom of the lead division have with one end of the first main part it is overlapping, first main part it is another
One end extends along the surface of ceramic dielectric layer to second end face, and has gap between second end face；
When the second inner electrode is equipped with lead division, the lead division is trapezoidal a, bottom of the lead division and the
Biend has an overlapping, another bottom of the lead division have with one end of the second main part it is overlapping, second main part it is another
One end extends along the surface of ceramic dielectric layer to first end face, and has gap between first end face.
Preferably, the first external electrode, which is completely covered first end face and carries over, extends to upper surface, lower surface, first
Side and second side；The second external electrode, which is completely covered second end face and carries over, extends to upper surface, lower surface, first
Side and second side；There are interval and insulation between the first external electrode, the second external electrode.
It is highly preferred that first main part and first side and second side have a gap, second main part with
First side and second side have gap.
It is highly preferred that first main part is equal to first side, the shortest distance of second side；Second main body
Portion is equal to first side, the shortest distance of second side.
Preferably, the lead division is isosceles trapezoid or right-angled trapezium.
Preferably, first main part is perpendicular to the length on the side of first end face, second main part perpendicular to
The length on the side of biend is the length of the first main part or the second main part, and first main part is parallel to the side of first end face
Length, the length on second main part side that is parallel to second end face be the width of the first main part or the second main part；
When the lead division be isosceles trapezoid, and the upper bottom of lead division have with first end face or second end face it is overlapping, extraction
When the bottom in portion has overlapping with one end of the first main part or the second main part, the bottom of lead division is greater than the first main part or the
The upper bottom for being wider than lead division of the width of two main parts, the first main part or the second main part；
When the lead division be isosceles trapezoid, and the bottom of lead division have with first end face or second end face it is overlapping, extraction
When the upper bottom in portion has overlapping with one end of the first main part or the second main part, the first main part or the second main part are wider than
The bottom of lead division.
Preferably, if the length of ceramic body is m, when electrode is equipped with lead division in described first, the lead division is separate
The distance of the bottom of first end face to first end face is d, then 0.05m≤d≤0.15m；
When the second inner electrode be equipped with lead division when, bottom of the lead division far from second end face to second end face away from
From for d, then 0.05m≤d≤0.15m.
D is too small then insufficient to the inspection range of X-direction cutting offset, and the too big then lead division of d occupies in first electrode too
Many areas is unfavorable for improving the capacitance of multilayer ceramic capacitor.
Preferably, the obtuse angle that the waist of the lead division and first end face or second end face are formed is 120 °~155 °.
Preferably, when the lead division is right-angled trapezium, the upper bottom of the lead division and first end face or second end face
There is overlapping, the bottom of the lead division has overlapping with one end of the first main part or the second main part；If the width of ceramic body is
W, the right angle waist length of lead division are d, and upper bottom length is c, then 0.5w≤c≤b, 0.05m≤d≤0.15m.
Preferably, when the interior electrode is multiple, the interior electrode further includes being alternately laminated in different ceramic dielectrics
Electrode in electrode and the multiple 4th in multiple thirds on layer, electrode is rectangle, institute in electrode and the described 4th in the third
Lead division is stated set on any one in first on electrode or/and any one the second inner electrode.
Preferably, the material of the ceramic dielectric layer be barium titanate ceramics, magnesium titanate ceramics, in calcium zirconate ceramics at least
It is a kind of；The material of the interior electrode is at least one of silver, palladium, silver palladium alloy, nickel, copper, monel；The external electrode
Material is at least one of silver, palladium, silver palladium alloy, nickel, copper, monel.
Compared with the existing technology, the invention has the benefit that
Multilayer ceramic capacitor of the present invention is convenient to examine two cut direction without splitting laminated body
Cut inclined degree, it might even be possible to only examine the inclined degree of cutting in two cut direction simultaneously from a face of laminated body, examine and divide
The efficiency that inclined defective products is cut in choosing is higher.
Detailed description of the invention
Fig. 1 is the appearance diagram of the multilayer ceramic capacitor of embodiment 1；
Fig. 2 is the appearance diagram of the ceramic body of the multilayer ceramic capacitor of embodiment 1；
Fig. 3 is the sectional view of the multilayer ceramic capacitor of Fig. 1；
Fig. 4 is another sectional view of the multilayer ceramic capacitor of Fig. 1；
Fig. 5 is the silk screen pictorial diagram for printing the interior electrode of the multilayer ceramic capacitor of embodiment 1；
Fig. 6 is the sectional view of the multilayer ceramic capacitor of embodiment 1 when X-direction cuts inclined；
Fig. 7 is the sectional view of the multilayer ceramic capacitor of embodiment 1 when Y-direction cuts inclined；
Fig. 8 is the sectional view of the multilayer ceramic capacitor of embodiment 2；
Fig. 9 is the silk screen pictorial diagram for printing the interior electrode of the multilayer ceramic capacitor of embodiment 2；
Figure 10 is the sectional view of the multilayer ceramic capacitor of embodiment 3；
Figure 11 is the silk screen pictorial diagram for printing the interior electrode of the multilayer ceramic capacitor of embodiment 3；
Figure 12 is the sectional view of the multilayer ceramic capacitor of embodiment 3 when X-direction cuts inclined；
Figure 13 is the sectional view of the multilayer ceramic capacitor of embodiment 3 when Y-direction cuts inclined；
Figure 14 is another sectional view of the multilayer ceramic capacitor of embodiment 3 when Y-direction cuts inclined；
Figure 15 is the sectional view of the multilayer ceramic capacitor of embodiment 4；
Wherein, 100, multilayer ceramic capacitor；10, ceramic body；20, the first external electrode；30, the second external electrode；S1, upper table
Face；S2, lower surface；S3, first end face；S4, second end face；S5, first side；S6, second side；12, ceramic dielectric layer；
14, electrode in first；15, electrode in third；16, the second inner electrode；17, electrode in the 4th；142, lead division；144, main body
Portion.
Specific embodiment
To better illustrate the object, technical solutions and advantages of the present invention, below in conjunction with the drawings and specific embodiments pair
The present invention is described further.
Embodiment 1
A kind of embodiment of multilayer ceramic capacitor of the present invention, multilayer ceramic capacitor described in the present embodiment it is specific
Structure combination attached drawing 1~7 is illustrated:
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, multilayer ceramic capacitor 100, including ceramic body 10, the first external electrode 20 and
Two external electrodes 30.Ceramic body 10 is laminated by multiple ceramic dielectric layers 12 and is constituted tool there are six the cuboid in face, including upper surfaces
S1, lower surface S2, first end face S3, second end face S4, first side S5 and second side S6, upper surface S1 and lower surface S2 phase
Mutual opposed and perpendicular to ceramic dielectric layer 12 stacking direction Z, first end face S3 and second end face S4 it is mutually opposed and perpendicular to
Direction X, first side S5 and second side S6 are mutually opposed and perpendicular to direction Y.
The first external electrode 20 is completely covered first end face S3 and along with extending to upper surface S1, lower surface S2, first
The part of side S5 and second side S6 form a coronal structure.Second end face S4 is completely covered simultaneously in the second external electrode 30
And along with the part for extending to upper surface S1, lower surface S2, first side S5 and second side S6, a coronal knot is formed
Structure.The first external electrode 20 and the second external electrode 30 are spaced apart from each other and are insulation.
Ceramic body 10 includes interior electrode.Interior electrode includes electrode 14 and multiple the second inner electrodes 16 in multiple first.First
Interior electrode 14 and the second inner electrode 16 are located at 10 inside of ceramic body and are alternately laminated in different ceramic dielectric layers along the Z direction
On 12 surface.
Electrode 14 includes lead division 142 and main part 144 in first.Lead division 142 is isosceles trapezoid, lead division 142
For upper bottom edge AB on first end face S3, the distance of terminal A to first side S5 is a, and the distance of terminal B to second side S6 is b,
A=b.The length of line segment AB is c.The bottom CD and first side S5 of lead division 142, second side S6 and second end face S4 are equal
It is formed with gap.In not formed the first external electrode 20 on ceramic body 10, line segment AB can be observed on first end face S3.
Main part 144 is rectangle.The a line EF of main part 144 is overlapped with the bottom CD of lead division 142, the opposite side of EF
It is formed with gap with second end face S4, so that electrode 14 and the second external electrode 30 insulate in first.Preferably, the adjacent side of EF and
One side S5 and second side S6 are each formed with gap, invade main part 144 to avoid moisture, while being also avoided that main part
144 and the second external electrode 30 occur between the extension on first side S5 and second side S6 short circuit or flashover.Into
One step is preferred, and main part 144 and first side S5 and second side S6's is equidistant.Main part 144 is perpendicular to first end
144 length based on the length on the side of face S3, main part 144 are parallel to 144 based on the length on the side of first end face S3
Width.
The second inner electrode 16 in first electrode 14 in orthographic projection and first in the plane electrode 14 about center line
II-II symmetrically.The lead division 142 of electrode 14 and master in the setting and first of the lead division and main part of the second inner electrode 16
Body portion 144 is similar, does not repeat here.
Electrode 14 and the second inner electrode 16 can be using the silk screens of figure as shown in Figure 5 on ceramic dielectric layer 12 in first
Type metal slurry and be made.Multiple ceramic dielectric layers 12 for being printed with figure are laminated with back and forth misplacing by fixed distance,
The green sheet comprising electrode 14 and multiple the second inner electrodes 16 in alternately stacked multiple first can be formed.By green sheet
It is cut after lamination, multiple layers comprising electrode 14 and multiple the second inner electrodes 16 in alternately stacked multiple first can be obtained
Stack.At this moment the first external electrode 20 and the second external electrode 30 are not yet formed on laminated body, therefore can be in the first end of laminated body
Face and second end face (first end face and second end face that correspond respectively to multilayer ceramic capacitor 100) see electrode 14 in first
With the exposed portion of the second inner electrode 16.By taking electrode 14 in first as an example, if electrode 14 exists in first there is no cutting partially
The exposed portion of first end face S3 is line segment AB, and the distance of terminal A to first side S5 are a, terminal B to second side S6
Distance be b, the length of a=b, line segment AB is c.When only X-direction cuts inclined, then as shown in fig. 6, electrode 14 in first
Becoming line segment A1B1 in the exposed portion of first end face S3, the length of A1B1 is c1, c1 > c, c1 is measured using image analyzers,
It can deduce the offset of X-direction.In addition at this moment the distance of terminal A 1 to first side S5 are a1, and terminal B 1 arrives second side S6
Distance be b1, a1=b1.When only Y-direction cuts inclined, then as shown in fig. 7, c is constant, a and b become a1 and b1 respectively,
Using the length of image analyzers measurement a1 and b1, the difference of a1 and b1 is calculated, can deduce the offset of Y-direction.It can manage
Solution, the cutting of the direction any of X and Y will not interfere the slippage test in another direction partially, and (for example X-direction cuts not shadow partially
Ring the difference of a1 and b1), therefore even if both direction is all cut partially, it still is able to test respectively, and guarantee to examine
Data it is accurate.In this way, only testing to a face (first end face or second end face) for laminated body, you can learn that X, Y two
The efficiency that inclined defective products is cut in the cutting offset in a direction, inspection and sorting is higher.
The length of ceramic body 10 is m, and the distance of CD to first end face S3 is d.Preferably,
0.05m≤d≤0.15m, d are too small then insufficient to the inspection range of X-direction cutting offset, the too big then lead division of d
142 occupy the too many area of electrode 14 in first, are unfavorable for improving the capacitance of multilayer ceramic capacitor 100.
Preferably, the ∠ CAB of lead division 142 is 120 °~155 °.At 120 ° of ∠ CAB <, to the cutting offset of X-direction
Resolution will be too small, inspection becomes difficult；At 155 ° of ∠ CAB >, the inspection range and foot of enough X-direction cutting offsets
The length of enough line segment AB is difficult to meet simultaneously (the contact area of electrode 14 and the first external electrode 20 in first when AB length is too small
It is too small, it may occur however that conductive bad).
Preferably, the distance of the distance of C to first side S5 and terminal B to second side S6 is set as technique permission
Y-direction maximum offset, then if Y-direction offset exceeds the Y-direction maximum offset that technique allows, Y-direction off-position
Lead division 142 will be fallen into, so that lead division 142 exposes in first side S5 or second side S6, thus such rejected product
It is easily identified, manually can visually sort, can also be sorted using optically screening machine.
Preferably, length of the length of EF more than or equal to AB and the length less than or equal to CD, such main part 144
Area it is larger, be conducive to improve multilayer ceramic capacitor 100 capacitance, and the length of AB can be set to it is larger, from
And increase the contact area of electrode 14 and the first external electrode 20 in first.In other examples, the length of EF can be less than
The length of AB can also be greater than the length of CD.
The material of ceramic dielectric layer 12 can be barium titanate ceramics, magnesium titanate ceramics, calcium zirconate ceramics, but not limited to this.
The material of interior electrode can be silver, palladium, silver palladium alloy, nickel, copper, monel, but not limited to this.The first external electrode 20 and second
The material of external electrode 30 can be silver, palladium, silver palladium alloy, nickel, copper, monel, but not limited to this.
Fig. 2 and Fig. 3 only illustratively draws several interior electrodes, and the sum of actually interior electrode is not particularly limited.
In other examples, can also only have electrode 14 in first that can also only have electric in second without the second inner electrode 16
Pole 16 is without electrode 14 in first.
Fig. 5 only illustratively draws several graphic elements, and the actually quantity of graphic element can be more to meet
Production capacity needs.
Embodiment 2
A kind of embodiment of multilayer ceramic capacitor of the present invention, multilayer ceramic capacitor described in the present embodiment it is specific
Structure combination attached drawing 8~9 is illustrated:
In conjunction with Fig. 8, difference from example 1 is that: lead division 142 is isosceles trapezoid.The bottom of lead division 142
For AB on first end face S3, AB and first side S5 and second side S6 are each formed with gap.Terminal A to first side S5 away from
It is b, a=b from the distance for a, terminal B to second side S6.The length of line segment AB is c.The upper bottom edge CD of lead division 142 and
Biend S4 is formed with gap.Main part 144 is rectangle.The a line EF of main part 144 and the upper bottom edge CD weight of lead division 142
It closes.
Electrode 14 and the second inner electrode 16 can be using the silk screens of figure as shown in Figure 9 on ceramic dielectric layer 12 in first
Type metal slurry and be made.The present embodiment cut inclined test effect and embodiment 1 is similar, do not repeat here.
Preferably, the length of EF is greater than the length of AB, and the area of such main part 144 is larger, is conducive to improve multilayer pottery
The capacitance of porcelain condenser 100.In other examples, the length of EF can be less than or equal to the length of AB.
Embodiment 3
A kind of embodiment of multilayer ceramic capacitor of the present invention, multilayer ceramic capacitor described in the present embodiment it is specific
Structure combination attached drawing 10~14 is illustrated:
In conjunction with Figure 10, with embodiment 2 the difference is that: the lead division of electrode 14 and the second inner electrode 16 is equal in first
For right-angled trapezium.The upper bottom edge AB of lead division 142 is on first end face S3, a line EF weight of bottom CD and main part 144
Close, perpendicular to bottom edge waist AC on first side S5.Endpoint D and second side S6 are formed with gap.On ceramic body 10 not
When forming the first external electrode 20, line segment AB can be observed on first end face S3.The length of line segment AB is a, the length of line segment CF
Degree is b, and the length of line segment CD is c, and the length of line segment AC is d, and the width of ceramic body is w.
Electrode 14 and the second inner electrode 16 can be using the silk screens of figure as shown in figure 11 in ceramic dielectric layer 12 in first
Upper type metal slurry and be made.It can see in first in electrode 14 and second in the first end face and second end face of laminated body
The exposed portion of electrode 16.By taking electrode 14 in first as an example, if electrode 14 is in first end face in first there is no cutting partially
The exposed portion of S3 is line segment AB, and the length of line segment AB is a.When only X-direction cuts inclined, then as shown in figure 12,
Electrode 14 becomes line segment A1B1 in the exposed portion of first end face S3 in first, and the length of A1B1 is a1, a1 > a, using image
Analyzer measures a1, can deduce the offset of X-direction.When only Y-direction cuts inclined, then in two kinds of situation for.The
A kind of situation is as shown in figure 13, and the exposed portion of electrode 14 remains as line segment AB in first, but terminal A is from originally in first end face
Become being formed with gap with first end face S3 on S3, using image analyzers measurement terminals A and first end face S3 distance e, i.e.,
It can deduce the offset of Y-direction.Second situation is as shown in figure 14, and the exposed portion of electrode 14 becomes two lines section in first
AA1 and BB1 can deduce the offset of Y-direction using the length f of image analyzers measurement AA1.It is appreciated that appointing in X and Y
The slippage test that will not interfere another direction partially is cut in one direction, therefore even if both direction is all cut partially, still
It can test respectively, and guarantee the accurate of inspection data.In this way, only to a face of laminated body (first end face or
Biend) test, you can learn that the cutting offset of X, Y both direction, examine and sorting cut the efficiency of inclined defective products compared with
It is high.
Preferably, 0.5w≤c≤b.The too small then lead division 142 of c and the connection width of main part 144 are too small, it may occur however that
It is conductive bad；The too big then endpoint D of lead division 142 of c and adjacent parts are prominent in spine, are easy to cause point discharge, are unfavorable for
The reliability of multilayer ceramic capacitor 100.Preferably, the too small then inspection to X-direction cutting offset of 0.05m≤d≤0.15m, d
Range deficiency is tested, d is too big, and then lead division 142 occupies the too many area of electrode 14 in first, is unfavorable for improving multilayer ceramic capacitor
100 capacitance.Preferably, ∠ ABD is 120 °~155 °.Resolution at 120 ° of ∠ ABD <, to the cutting offset of X-direction
Degree will be too small, and inspection becomes difficult；At 155 ° of ∠ ABD >, the inspection range and enough lines of enough X-direction cutting offsets
The length of section AB is difficult to meet simultaneously.
Embodiment 4
A kind of embodiment of multilayer ceramic capacitor of the present invention, multilayer ceramic capacitor described in the present embodiment it is specific
Structure combination attached drawing 15 is illustrated:
In conjunction with Figure 15, difference from example 1 is that: interior electrode includes electrode 14 in one first and one second
Electrode 17 in electrode 15 and the multiple 4th in interior electrode 16 and multiple thirds.Electrode 14 and the second inner electrode 16 sets in first
It sets same as Example 1.Electrode 17 is rectangle in electrode 15 and the 4th in third.Electrode 17 exists in electrode 15 and the 4th in third
It is alternately laminated in along the Z direction inside ceramic body 10 on the surface of different ceramic dielectric layers 12.Electrode 14 and second in first
Position of the interior electrode 16 inside ceramic body 10 does not limit, and can be interspersed in any pair of third in electrode 15 and the 4th electric
It is spaced from each other between pole 17 and by ceramic dielectric layer 12, is also possible to outermost interior electrode.The present embodiment only one
Electrode 14 and a second inner electrode 16 in one, but cut on partially undesirable checkability with embodiment 1 in raising with equivalent
Fruit, and electrode 17 does not have lead division in electrode 15 and the 4th in third, therefore can also increase interior electrode and the first dispatch from foreign news agency
The connection area of pole 20 and the second external electrode 30 reduces contact resistance.
In the present embodiment, in third in electrode 15 and the 4th electrode 17 be rectangle, can be formed between the two in this way compared with
Big overlapping area is conducive to the capacitance for improving multilayer ceramic capacitor 100.In other examples, electrode in third
Electrode 17 is also possible to other shapes in 15 and the 4th.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of multilayer ceramic capacitor, which is characterized in that including ceramic body, the first external electrode, the second external electrode, interior electrode,
The ceramic body is the cuboid being laminated by multiple ceramic dielectric layers, the ceramic body include mutually opposed upper surface and
Lower surface, mutually opposed first end face and second end face, mutually opposed first side and second side；
The interior electrode includes at least one electrode and at least one the second inner electrode in first, electrode and second in described first
Interior electrode is alternately laminated in different ceramic dielectric layer surfaces；Electrode is connected with the first external electrode in described first, and described
Electrode and the second external electrode insulate in first；The second inner electrode is connected with the second external electrode, and the second inner electrode
It insulate with the first external electrode；
In described first electrode include the first main part, the second inner electrode include the second main part, first main part,
Second main part is rectangle, and at least one of electrode, the second inner electrode are equipped with lead division in described first；
When electrode is equipped with lead division in described first, the lead division is trapezoidal, a bottom of the lead division and first end
There is overlapping in face, another bottom of the lead division has overlapping, the other end of first main part with one end of the first main part
Extend along the surface of ceramic dielectric layer to second end face, and has gap between second end face；
When the second inner electrode is equipped with lead division, the lead division is trapezoidal, a bottom of the lead division and second end
There is overlapping in face, another bottom of the lead division has overlapping, the other end of second main part with one end of the second main part
Extend along the surface of ceramic dielectric layer to first end face, and has gap between first end face.
2. multilayer ceramic capacitor as described in claim 1, which is characterized in that first end is completely covered in the first external electrode
It face and carries over and extends to upper surface, lower surface, first side and second side；Second end is completely covered in the second external electrode
It face and carries over and extends to upper surface, lower surface, first side and second side；The first external electrode, the second external electrode it
Between have interval and insulation.
3. multilayer ceramic capacitor as claimed in claim 2, which is characterized in that first main part and first side and the
Two side faces have gap, second main part and first side and second side to have gap.
4. multilayer ceramic capacitor as described in claim 1, which is characterized in that the lead division is isosceles trapezoid or right angle ladder
Shape.
5. multilayer ceramic capacitor as described in claim 1 or 4, which is characterized in that first main part is perpendicular to first
End face while length, second main part perpendicular to second end face while length be the first main part or the second main part
Length, first main part be parallel to first end face while length, second main part be parallel to second end face while
Length be the first main part or the second main part width；
When the lead division be isosceles trapezoid, and the upper bottom of lead division have with first end face or second end face it is overlapping, lead division
When bottom has overlapping with one end of the first main part or the second main part, the bottom of lead division is greater than the first main part or the second master
The upper bottom for being wider than lead division of the width in body portion, the first main part or the second main part；
When the lead division be isosceles trapezoid, and the bottom of lead division have with first end face or second end face it is overlapping, lead division
When upper bottom has overlapping with one end of the first main part or the second main part, the first main part or the second main part are wider than extraction
The bottom in portion.
6. multilayer ceramic capacitor as described in claim 1 or 4, which is characterized in that if the length of ceramic body is m, when described
When electrode is equipped with lead division in first, the distance at bottom of the lead division far from first end face to first end face is d, then 0.05m
≤d≤0.15m；
When the second inner electrode is equipped with lead division, the distance of the lead division bottom far from second end face to second end face is
D, then 0.05m≤d≤0.15m.
7. multilayer ceramic capacitor as described in claim 1 or 4, which is characterized in that the waist and first end face of the lead division
Or the obtuse angle that second end face is formed is 120 °~155 °.
8. multilayer ceramic capacitor as described in claim 1 or 4, which is characterized in that when the lead division is right-angled trapezium,
The upper bottom of the lead division has overlapping, the bottom of the lead division and the first main part or second with first end face or second end face
There is overlapping in one end of main part；If the width of ceramic body is w, the right angle waist length of lead division is d, and upper bottom length is c, then 0.5w
≤ c≤b, 0.05m≤d≤0.15m.
9. multilayer ceramic capacitor as described in claim 1, which is characterized in that described interior when the interior electrode is multiple
Electrode further includes electrode in electrode and the multiple 4th in the multiple thirds being alternately laminated on different ceramic dielectric layers, and described
Electrode is rectangle in electrode and the described 4th in three, the lead division be set to any one in first electrode or/and any one
On the second inner electrode.
10. multilayer ceramic capacitor as described in claim 1, which is characterized in that the material of the ceramic dielectric layer is metatitanic acid
At least one of titanate ceramics, magnesium titanate ceramics, calcium zirconate ceramics；The material of the interior electrode be silver, palladium, silver palladium alloy, nickel,
At least one of copper, monel；The material of the external electrode be silver, palladium, silver palladium alloy, nickel, copper, in monel extremely
Few one kind.
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| CN201910805140.9A CN110459402A (en) | 2019-08-28 | 2019-08-28 | A kind of multilayer ceramic capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951604A (en) * | 2021-01-25 | 2021-06-11 | 深圳市威尔达电子有限公司 | Chip capacitor and performance detection method thereof |
| WO2023222052A1 (en) * | 2022-05-18 | 2023-11-23 | 利多(香港)有限公司 | Biosensor and manufacturing method therefor |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10275736A (en) * | 1997-03-28 | 1998-10-13 | Tdk Corp | Method for judging cutting position correctness of laminated substrate, and laminated ceramics electronic part |
| JP2000340455A (en) * | 1999-05-31 | 2000-12-08 | Kyocera Corp | Laminated ceramic capacitor and manufacture thereof |
| JP2001217139A (en) * | 2000-01-31 | 2001-08-10 | Kyocera Corp | Manufacturing method of laminated electronic component |
| JP2003188048A (en) * | 2001-12-20 | 2003-07-04 | Kyocera Corp | Capacitor element and multilayer wiring board having built-in capacitor element |
| JP2005175165A (en) * | 2003-12-10 | 2005-06-30 | Murata Mfg Co Ltd | Multilayer ceramic capacitor and manufacturing method thereof |
| CN1695215A (en) * | 2002-09-10 | 2005-11-09 | Tdk株式会社 | Laminated capacitor |
| CN1917107A (en) * | 2005-08-19 | 2007-02-21 | Tdk株式会社 | Multilayer capacitor |
| CN104124058A (en) * | 2013-04-26 | 2014-10-29 | 三星电机株式会社 | Multilayer ceramic electronic component and board for mounting the same |
| CN104282434A (en) * | 2013-07-05 | 2015-01-14 | 三星电机株式会社 | Multilayer ceramic capacitor and mounting board therefor |
| KR20150059148A (en) * | 2015-04-30 | 2015-05-29 | 삼성전기주식회사 | Chip type laminated capacitor |
| CN104715925A (en) * | 2015-03-16 | 2015-06-17 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| CN204480897U (en) * | 2015-03-16 | 2015-07-15 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| CN107221431A (en) * | 2017-06-01 | 2017-09-29 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| KR20180008821A (en) * | 2018-01-09 | 2018-01-24 | 삼성전기주식회사 | Multi-layered ceramic capacitor and board for mounting the same |
| CN207282317U (en) * | 2017-08-31 | 2018-04-27 | 广东风华高新科技股份有限公司 | A kind of ceramic electronic components |
| JP2019024077A (en) * | 2017-07-24 | 2019-02-14 | 株式会社村田製作所 | Multilayer ceramic capacitor |
| JP2019140374A (en) * | 2018-02-09 | 2019-08-22 | 太陽誘電株式会社 | Method of manufacturing multi-layer ceramic electronic component, and multi-layer ceramic electronic component |
| CN210467599U (en) * | 2019-08-28 | 2020-05-05 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
-
2019
- 2019-08-28 CN CN201910805140.9A patent/CN110459402A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10275736A (en) * | 1997-03-28 | 1998-10-13 | Tdk Corp | Method for judging cutting position correctness of laminated substrate, and laminated ceramics electronic part |
| JP2000340455A (en) * | 1999-05-31 | 2000-12-08 | Kyocera Corp | Laminated ceramic capacitor and manufacture thereof |
| JP2001217139A (en) * | 2000-01-31 | 2001-08-10 | Kyocera Corp | Manufacturing method of laminated electronic component |
| JP2003188048A (en) * | 2001-12-20 | 2003-07-04 | Kyocera Corp | Capacitor element and multilayer wiring board having built-in capacitor element |
| CN1695215A (en) * | 2002-09-10 | 2005-11-09 | Tdk株式会社 | Laminated capacitor |
| JP2005175165A (en) * | 2003-12-10 | 2005-06-30 | Murata Mfg Co Ltd | Multilayer ceramic capacitor and manufacturing method thereof |
| CN1917107A (en) * | 2005-08-19 | 2007-02-21 | Tdk株式会社 | Multilayer capacitor |
| JP2007053305A (en) * | 2005-08-19 | 2007-03-01 | Tdk Corp | Laminated capacitor |
| CN104124058A (en) * | 2013-04-26 | 2014-10-29 | 三星电机株式会社 | Multilayer ceramic electronic component and board for mounting the same |
| CN104282434A (en) * | 2013-07-05 | 2015-01-14 | 三星电机株式会社 | Multilayer ceramic capacitor and mounting board therefor |
| CN104715925A (en) * | 2015-03-16 | 2015-06-17 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| CN204480897U (en) * | 2015-03-16 | 2015-07-15 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| KR20150059148A (en) * | 2015-04-30 | 2015-05-29 | 삼성전기주식회사 | Chip type laminated capacitor |
| CN107221431A (en) * | 2017-06-01 | 2017-09-29 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
| JP2019024077A (en) * | 2017-07-24 | 2019-02-14 | 株式会社村田製作所 | Multilayer ceramic capacitor |
| CN207282317U (en) * | 2017-08-31 | 2018-04-27 | 广东风华高新科技股份有限公司 | A kind of ceramic electronic components |
| KR20180008821A (en) * | 2018-01-09 | 2018-01-24 | 삼성전기주식회사 | Multi-layered ceramic capacitor and board for mounting the same |
| JP2019140374A (en) * | 2018-02-09 | 2019-08-22 | 太陽誘電株式会社 | Method of manufacturing multi-layer ceramic electronic component, and multi-layer ceramic electronic component |
| CN210467599U (en) * | 2019-08-28 | 2020-05-05 | 广东风华高新科技股份有限公司 | Multilayer ceramic capacitor |
Non-Patent Citations (1)
| Title |
|---|
| 王永力, 李龙土, 马振伟, 桂治轮: "片式化高压电容器的内电极结构及优化", 功能材料, no. 04 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951604A (en) * | 2021-01-25 | 2021-06-11 | 深圳市威尔达电子有限公司 | Chip capacitor and performance detection method thereof |
| WO2023222052A1 (en) * | 2022-05-18 | 2023-11-23 | 利多(香港)有限公司 | Biosensor and manufacturing method therefor |
| WO2023222059A1 (en) * | 2022-05-18 | 2023-11-23 | 利多(香港)有限公司 | Biosensor and manufacturing method therefor |
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