WO2005008698A1 - 表面実装型部品 - Google Patents
表面実装型部品 Download PDFInfo
- Publication number
- WO2005008698A1 WO2005008698A1 PCT/JP2004/010188 JP2004010188W WO2005008698A1 WO 2005008698 A1 WO2005008698 A1 WO 2005008698A1 JP 2004010188 W JP2004010188 W JP 2004010188W WO 2005008698 A1 WO2005008698 A1 WO 2005008698A1
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- WIPO (PCT)
- Prior art keywords
- conductor
- appearance inspection
- terminal electrode
- component
- substrate
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/144—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being welded or soldered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/06—Mountings specially adapted for mounting on a printed-circuit support
- H01G2/065—Mountings specially adapted for mounting on a printed-circuit support for surface mounting, e.g. chip 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
- H01G4/228—Terminals
-
- 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
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49805—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers the leads being also applied on the sidewalls or the bottom of the substrate, e.g. leadless packages for surface mounting
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3431—Leadless components
- H05K3/3442—Leadless components having edge contacts, e.g. leadless chip capacitors, chip carriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/095—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00 with a principal constituent of the material being a combination of two or more materials provided in the groups H01L2924/013 - H01L2924/0715
- H01L2924/097—Glass-ceramics, e.g. devitrified glass
- H01L2924/09701—Low temperature co-fired ceramic [LTCC]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
- H05K1/0269—Marks, test patterns or identification means for visual or optical inspection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09372—Pads and lands
- H05K2201/09381—Shape of non-curved single flat metallic pad, land or exposed part thereof; Shape of electrode of leadless component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/16—Inspection; Monitoring; Aligning
- H05K2203/163—Monitoring a manufacturing process
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a surface-mounted component that is surface-mounted on a mother board such as a printed circuit board by soldering or the like, and more particularly, to a surface-mount type component that can visually inspect the bonding state with the mother board. Related to parts.
- FIG. 16 is a perspective view showing a state where the surface-mounted component 30 having the side electrode 33 on the side surface of the substrate is soldered to the motherboard 32 (component mounting substrate).
- FIG. 17 is a cross-sectional view assuming that it is cut along the virtual cutting line BB shown in FIG.
- the land electrodes 34 on the motherboard 32 on which the surface-mounted component 30 is mounted are generally formed so as to be exposed to the outside by a width a from the side surface of the surface-mounted component 30. By intentionally exposing the land electrode 34 from the side surface to the outside, a thick solder 35 is formed on the side surface of the surface-mounted component 30 to increase the peel strength of the surface-mounted component 30. ing.
- FIG. 18 is a perspective view showing a state in which the surface mount component 31 having the terminal electrodes 37 on the bottom surface of the substrate is mounted on the motherboard 32 by soldering.
- a surface mount type component having an external connection electrode having a BGA (Ball Grid Array) structure as shown in Patent Document 1 corresponds to this.
- FIG. 19 is a cross-sectional view assuming that the semiconductor device is cut along a virtual cutting line CC shown in FIG.
- the land electrodes 34 on the motherboard 32 on which such a surface-mounted component 31 is mounted are generally arranged inside so as not to be exposed from the side surface of the surface-mounted component 31 to the outside.
- Patent Document 1 JP 08-250620 A
- Patent Document 2 JP-A-10-170455
- the present invention has been made to solve the above-mentioned problem, and even if a thick solder fillet or the like is not formed on the outer surface of the surface mount component, it is possible to use a special transmissive device.
- a surface-mounted component according to claim 1 of the present invention includes a substrate having a first main surface, a second main surface, and a side surface connecting the first and second main surfaces, A terminal electrode provided on the first main surface; and a first visual inspection conductor extending continuously from the terminal electrode to the side surface and having a width smaller than a width of the terminal electrode. , Is characterized by having.
- the surface-mount component according to claim 2 of the present invention is the invention according to claim 1, wherein the first appearance inspection conductor is provided on a side surface of the substrate. A second appearance inspection conductor continuous from the end is formed.
- the width dimension of the first visual inspection conductor is 100 / m or less. It is characterized by the following.
- the surface mount component according to claim 4 of the present invention is the surface mount type component according to any one of claims 1 to 3, wherein the first appearance inspection conductor is And extending from the terminal electrode to the inside of the substrate.
- the surface-mounted component according to claim 5 of the present invention is the surface-mounted component according to any one of claims 14 to 14, wherein at least two of the first first electrodes are provided for one terminal electrode. Wherein the appearance inspection conductor is formed continuously.
- the surface mount component of the present invention provides a substrate having a first main surface, a second main surface, and a side surface connecting between the first and second main surfaces.
- a terminal electrode provided on the first main surface, and a first visual inspection line extending from the terminal electrode to the side surface and having a width smaller than the width of the terminal electrode.
- a conductor
- the terminal electrode provided on the first main surface (that is, the mounting surface) is connected to a land electrode provided on the surface of a mother board such as a printed board by soldering or the like. It is connected via the bonding material. Since the first visual inspection conductor extends continuously from the terminal electrode and is formed continuously, when the surface mount type component is bonded to the mother board, the bonding material is connected to the terminal electrode on the mounting surface and the land.
- the surface of the first appearance inspection conductor wets along the first appearance inspection conductor on the side from between the electrodes, the presence or absence of the wetted bonding material in the first appearance inspection conductor can be visually confirmed, and the surface-mount component The ability to easily carry out visual inspection of the joined state of the slab.
- the width of the first appearance inspection conductor is smaller than the width of the terminal electrode provided on the mounting surface, and in particular, is formed to be 1Z3 or less.
- the amount of wetting of the bonding material such as solder on the conductor can be minimized, and moreover, The rising dimension can be increased.
- the width dimension of the first appearance inspection conductor is more preferably, for example, 80 ⁇ or less, preferably 100 / im or less. If the width dimension of the first conductor for visual inspection is 100 ⁇ or less, the amount of solder or other bonding material that can be wet by the so-called capillary phenomenon can be increased.
- the second visual inspection conductor is formed continuously along the side surface of the substrate, the extension end of the first visual inspection conductor, and further in the width direction of the first visual inspection conductor. Preferably, it is formed by expansion. Since the second conductor for the visual inspection extends beyond the width of the conductor for the first visual inspection, the joining material that has wetted the first conductor for the visual inspection further extends in the width direction according to the second conductor for the visual inspection. It is possible to more surely see the bonding material that spreads out and spreads and spreads.
- the first visual inspection conductor at least one end of the terminal electrode arranged on the bottom surface of the substrate is continuously extended inside the substrate, and the extended end is located inside the substrate. Is preferred. Then, a continuous end surface of the terminal electrode and the first visual inspection conductor is exposed as a part of the side surface of the substrate.
- the first visual inspection conductor may be one in which both ends of the terminal electrode extend from the bottom surface of the substrate to the inside of the substrate, respectively. In this case, two first appearance inspection conductors are formed at both ends of the terminal electrode.
- the substrate is not particularly limited, but is preferably, for example, a multilayer substrate formed by laminating a plurality of insulator layers.
- the insulator layer can be formed by, for example, a ceramic layer or a resin layer made of an epoxy resin or the like.
- the ceramic layer is preferably formed by sintering a low temperature co-fired ceramic (LTCC) material.
- the low-temperature firing ceramic material is a ceramic material that can be sintered at a temperature of 1000 ° C. or less and can be fired simultaneously with silver, copper, or the like having a low specific resistance. Examples of the low-temperature firing ceramic material include a glass composite LTCC material obtained by mixing borosilicate glass with ceramic powder such as alumina-forsterite, ZnO—MgO—A1
- Non-glass type LTCC materials can be used.
- the terminal electrode may be a metal such as a copper foil.
- a foil is preferably used, and when the insulator layer is a ceramic layer made of a low-temperature fired ceramic material, for example, a conductive paste mainly containing silver, copper, or the like is preferably used.
- a special transmission device can be used. Even if not used, it is possible to provide a surface-mounted component capable of easily visually inspecting the appearance of the joined state, such as solderability, of the surface-mounted component.
- FIG. 1 is a perspective view showing a state in which the surface-mounted component of this embodiment is seen through.
- the surface-mounted component 1 of the present embodiment has a first main surface, a second main surface, and a space between the first and second main surfaces where three ceramic layers 11 each having a thickness of 100 / m are stacked, for example.
- the base body is a rectangular ceramic multilayer substrate with four sides.
- a terminal electrode 13 is formed on the first main surface (bottom surface) of the ceramic multilayer substrate, and at least one of the four side surfaces of the ceramic multilayer substrate rises substantially perpendicular to the bottom surface.
- a first appearance inspection conductor 12 is formed. The first visual inspection conductor 12 extends from the terminal electrode 13 along the side surface, and is formed continuously near the ridge between the terminal electrode 13 and the bottom surface and the side surface of the lowermost ceramic layer. You.
- the first appearance inspection conductor 12 has a width 14 as small as 80 x m. Its height is the same as the thickness of one ceramic layer and is 100 zm high.
- the width of the terminal electrode (width in the same direction as the width direction of the first appearance inspection conductor 12) is 240 xm, and the surface of the first appearance inspection conductor 12 and the terminal electrode 13 is electroless.
- An Au plating film is formed using a plating method, so that the solder is easily wetted.
- the width of the terminal electrode 13 should be 100 zm—1.5 mm force S, preferably 200 ⁇ m 700 ⁇ m to ensure sufficient connection reliability to the mother board while arranging it at high density. Maseru.
- FIG. 2 shows a state immediately before mounting the surface mount type component 1 shown in FIG. FIG.
- An Au plating film is also formed on the surface of the land electrode 16 of the mother board 15, and a solder film 17 is printed thereon.
- the whole is heated, the solder film 17 on the land electrode 16 is melted, and the terminal electrode 13 of the surface-mounted component 1 is connected.
- the surface mount component 1 is mounted on the mother board 15 by connecting to the land electrodes 16 of the mother board 15. At this time, the side surface of the surface-mounted component 1 is aligned with the edge of the land electrode 16 so that the land electrode 16 does not protrude from the side surface of the surface-mounted component 1.
- FIG. 3 is a cross-sectional view of the mounted surface-mounted component 1 and mother board 15 taken along a virtual cutting line A—A in FIG.
- the solder film 17 crosses a ridge connecting the bottom surface and the side surface of the ceramic multilayer substrate, and thinly wets up to near the upper end of the first visual inspection conductor 12. That is, since the first visual inspection conductor 12 is different from a general side electrode and has a small size of width 14 of 100 zm and height of 100 xm, it is necessary to connect the terminal electrode 13. Even if only the minimum amount of the solder film 17 is printed, the solder film 17 will wet up to the vicinity of the upper end of the appearance inspection conductor 12.
- FIG. 4 is an enlarged view of the surface-mounted component 1 after mounting from the side surface on which the first appearance inspection conductor 12 is formed.
- the solder film 17 is wet from the terminal electrode 13 side along the first appearance inspection conductor 12 on which an Au plating film perpendicular to the bottom surface of the ceramic multilayer substrate is formed.
- an Au plating film is formed on the first appearance inspection conductor 12 to give a gold color, and the solder film 17 has a silver color.
- the presence or absence of solder can be easily confirmed visually.
- the first appearance inspection conductor 12 is substantially I-shaped, it is possible to easily determine how high the wet appearance is. In the appearance inspection, the degree of solderability can be estimated by confirming the wet-up state of the solder as described above.
- FIG. 5 is a perspective view showing an example of a procedure for manufacturing the surface-mounted component of the present embodiment. The manufacturing method will be described below with reference to FIG.
- a ceramic green sheet 41 is prepared.
- the ability to prepare large-sized ceramic green sheets so that a large number can be obtained for mass production is required.
- a ceramic green sheet that can be used to manufacture two child substrates. A sheet will be prepared.
- one ceramic green sheet 45 to be disposed on the bottom surface when it becomes a parent substrate is prepared.
- the ceramic green sheet 45 has the same dimensions as the ceramic green sheet 41 shown in FIG.
- a narrow through hole having a diameter of 100 am or less is provided at the center of the ceramic green sheet 45 at the position where the sub-substrate dividing line 44 is formed.
- the through-hole is filled with a paste containing silver or copper as a main component, and a filling via 42 is produced.
- a conductor film 43 serving as a terminal electrode which is exposed on the lower surface of the ceramic green sheet 45 and covers the filling port of the filling via 42 and extends evenly on both sides across the daughter board dividing line 44, is printed.
- a conductor film or via conductor serving as an internal circuit layer is also formed on other ceramic green sheets 41 to be laminated as necessary.
- the ceramic green sheet 45 is disposed in the lowermost layer, the conductive film 43 is on the lower surface, and another lamic green sheet 41 is laminated on the upper surface in a predetermined order. Then, the whole is press-bonded to produce the parent laminate 5.
- the parent laminate 5 has the conductor film 43 on the bottom surface.
- the ceramic sintered body is divided into two along a sub-substrate dividing line 44 shown in FIG. 5 (c).
- the two sub-substrates shown in) are prepared.
- the narrow filling via 42 is also cut in half, and the conductor surface is exposed on the side surface of the daughter board.
- the exposed conductor surface becomes the first appearance inspection conductor 12 in the surface mount component 1.
- the appearance inspection of the bonding state of the surface-mounted component 1 by soldering can be easily performed. Further, according to the present embodiment, it is not necessary to form a large solder fillet, and the mounting density of the surface mount component 1 can be increased.
- FIG. 6 is a perspective view showing a state in which the surface-mounted component of this embodiment is seen through.
- the surface-mounted component 2 of the present embodiment is characterized in that it has a second visual inspection conductor 18 in addition to the first visual inspection conductor 12, and the other components are configured in accordance with the first embodiment. ing.
- the second visual inspection conductor 18 is extended from the extended end of the upper end of the first visual inspection conductor 12, and the second visual inspection conductor 18 is made of ceramic.
- An elongated conductive film substantially parallel to the bottom surface of the multilayer substrate is formed continuously at the upper end of the first visual inspection conductor 12, and is substantially formed by both the first and second visual inspection conductors 12, 18. It is T-shaped.
- the longitudinal dimension of the second visual inspection conductor 18 is preferably larger than the width dimension of the first visual inspection conductor 12, for example, preferably 100 to 300 zm. Further, the width dimension (dimension in the height direction) of the second external inspection conductor 18 is preferably 3 to 50 zm.
- the width and height of the first appearance inspection conductor 12 are the same as those in the first embodiment.
- FIG. 7 is an enlarged view of the surface-mounted component 2 after being mounted on the motherboard 15 as viewed from the side on which the first and second appearance inspection conductors 12 and 18 are formed. It is.
- the first and second appearance inspection conductors 12 and 18 have a substantially T-shape as a whole as shown in FIG.
- the conductor 12 When the conductor 12 is wet, it spreads over the entire length in the longitudinal direction of the second conductor 18 as shown in FIG. Therefore, in the present embodiment, the solder film 17 spreads in a T-shape, so that the degree of solder wetting can be more clearly visually recognized than in the case of the I-shape of the first embodiment. .
- FIG. 8 is a perspective view showing an example of a procedure for manufacturing the surface-mounted component of the present embodiment. The The manufacturing method will be described below with reference to FIG.
- a ceramic green sheet 41 is prepared.
- a ceramic Darline sheet 41 of a size that can produce two child substrates is prepared.
- a filling via 42 was formed on one ceramic green sheet 45 which would be placed on the bottom surface when it became the parent substrate. I do. Further, a conductive film 43 serving as a terminal electrode extending evenly on both sides is printed by covering the filling opening of the filling via 42 exposed on the bottom surface of the ceramic green sheet 45 and straddling the daughter board dividing line 44. If necessary, a conductor film to be an internal circuit layer and a via conductor are also formed on the other ceramic green sheets 41 to be laminated.
- a conductor film 48 serving as a second appearance inspection conductor extending uniformly on both sides across the daughter board dividing line 44 is provided on one ceramic green sheet 46.
- the width of the conductive film 48 in the direction of the substrate dividing line is 200 ⁇ m, which is larger than the diameter of the filled via 42, and the thickness is 10 ⁇ .
- a ceramic green sheet 45 is disposed in the lowermost layer, a ceramic green sheet 46 is laminated thereon with the conductor film 48 facing downward, and other ceramic green sheets 41 are provided in a predetermined manner. Are laminated in this order, and the whole is crimped to produce a parent laminate 6.
- the parent laminate 6 has a conductor film 43 on the bottom surface and a conductor film 48 on the upper surface of the lowermost ceramic green sheet 45, as shown in FIG. Are connected via filling vias 42.
- the ceramic sintered body is divided into two along a sub-substrate dividing line 44 shown in FIG. e) Make two child substrates as shown in e).
- the narrow filling via 42 is also cut in half, and the conductor surface is exposed on the side surface of the daughter board, and the exposed conductor surface becomes the first and second appearance inspection conductors 12, 18.
- FIG. 9 is a perspective view showing a state in which the surface-mounted component of this embodiment is seen through. Also in this embodiment, the same or corresponding parts as those in the above embodiments are denoted by the same reference numerals.
- the surface-mounted component 3 of the present embodiment is configured such that both ends of the terminal electrode 13 on the bottom surface of the ceramic multilayer substrate are gradually raised and extended into the inside of the ceramic multilayer substrate, and the curved end surface is provided. Is exposed on the side surface of the ceramic multilayer substrate as the first appearance inspection conductor. Others are configured according to the above-described embodiments.
- An Au plating film is formed on the first appearance inspection conductor 12 as in the first embodiment.
- the surface mount type component 3 is mounted on a mother board in the same manner as in FIG. 2 shown in the first embodiment.
- FIG. 10 is an enlarged view of the surface-mounted component 3 after being mounted on the motherboard 15 when viewed from the side where the first appearance inspection conductor 12 is formed.
- the inclined portions extending from both ends of the terminal electrode 13 formed on the bottom surface of the ceramic multilayer substrate into the ceramic multilayer substrate and exposed on the side surfaces of the ceramic multilayer substrate are each a first appearance inspection conductor. 12, formed as 12.
- the first appearance inspection conductors 12 are continuously formed at both ends of the terminal electrode 13 in this manner, it is possible to more reliably check the bonding between the surface mount component 3 and the mother board. Can be.
- the present invention is not limited to this embodiment, and three or more first appearance inspection conductors may be continuously formed on one terminal electrode 13.
- FIG. 11 is a perspective view showing an example of a procedure for manufacturing the surface mount component of the present embodiment. The manufacturing method will be described below with reference to FIG.
- a ceramic green sheet 41 is prepared.
- a ceramic Darline sheet 41 of a size that can produce two child substrates is prepared.
- one ceramic green sheet 45 which is to be disposed on the bottom surface when it becomes the parent substrate, At an even position Then, the conductor film 43 serving as a terminal electrode is printed. Conductive films and via conductors serving as internal circuit layers are also formed on other ceramic drain sheets 41 to be laminated as necessary.
- a ceramic dust sheet 47 for providing both ends of the conductor film 43 is prepared.
- a hole 49 having a size smaller than the width of the conductor film 43 is formed in the ceramic green sheet 47.
- a ceramic green sheet 47 is arranged in the lowermost layer, a ceramic green sheet 45 is laminated thereon, and other ceramic green sheets 41 are laminated in a predetermined order. I do.
- the surface on which the conductive film 43 is printed on the ceramic green sheet 45 is arranged so as to face the ceramic green sheet 47. At this time, both ends of the conductor film 43 overlap the ceramic green sheet 47.
- FIG. 12 is a cross-sectional view of the parent laminate 7 taken along the sub-substrate division line 44 at the time of FIG. 11D.
- the ceramic green sheets 47 are overlapped on both ends of the conductor film 43, indicating that the center of the conductor film 43 is exposed through the holes 49 of the ceramic green sheet 47.
- FIG. 13 is a cross-sectional view of the parent laminate 7 after crimping at the time of FIG.
- the ceramic green sheets 47 indicate that both ends of the conductive film 43 are embedded in the parent laminate 7.
- the shape is changed so as to be inclined into the parent laminate 7 without tearing, and other portions are aligned with the lower surface of the ceramic green sheet 47. .
- the parent laminate 7 is baked and divided into two sub-substrates at the sub-substrate dividing line 44, thereby producing a sub-substrate as shown in FIG.
- the end surface of the conductor film 43 is also exposed to the side surface of the substrate during the division of the sub-substrate. Of the exposed surface, both inclined end portions become the first appearance inspection conductors 12, 12, respectively.
- the first appearance inspection conductor 12 is disposed on the bottom surface of the ceramic multilayer substrate.
- One that is not perfectly vertical is an example of a generally I-shaped conductor. That is, by visual inspection, it is possible to identify the soldering force S of the solder with the same ease as in the first embodiment.
- the terminal electrode 13 and the two first appearance inspection conductors 12 formed continuously at both ends thereof are electrically connected also inside the ceramic multilayer substrate, that is, Since the first external inspection conductor 12 extends toward the inside of the ceramic multilayer substrate in a direction parallel to the bottom surface (first main surface) of the ceramic multilayer substrate, the terminal electrode 13 and the first The external appearance inspection conductor 12 is firmly connected, and the connection reliability between the ceramic multilayer substrate and the terminal electrode 13 or the ceramic multilayer substrate and the first external appearance inspection conductor 12 can be improved.
- FIG. 14 is a perspective view showing a modification of the third embodiment and showing a state in which the surface-mounted component of the present embodiment is seen through.
- both end portions (tip portions) of the first appearance inspection conductor 12 inclined on the side surface of the ceramic multilayer substrate are formed substantially parallel to the bottom surface of the ceramic substrate. This portion forms the second conductor 18 for visual inspection.
- An Au plating film is formed on the first and second appearance inspection conductors 12 and 18 in the same manner as in the first embodiment.
- the surface mount component 4 is mounted on the mother board in the same manner as in FIG. 2 shown in the first embodiment.
- FIG. 15 is an enlarged view of the surface-mounted component 4 after being mounted on the motherboard 15 as viewed from the side on which the first and second appearance inspection conductors 12 and 18 are formed. It is.
- the conductor film 43 In the method of manufacturing the surface-mounted component in Example 3 described above, by forming the conductor film 43 to be appropriately large, the whole is not evenly inclined as shown in FIG. The parallel first and second appearance inspection conductors 12 and 18 can be manufactured.
- the shape of the first appearance inspection conductor 12 in FIG. 15 is in the horizontal direction (the direction parallel to the bottom surface). Since there is a widened part, it is possible to more clearly and clearly identify the solder wettability S.
- the conductor for visual inspection shown in each of the above embodiments is preferably provided on all terminal electrodes soldered to the mounting board, but some terminal electrodes important for mounting, for example, surface mounting It may be provided only at the terminal electrodes at the four corners of the mold component.
- the present invention can be suitably used for surface-mounted components such as electronic components used by being mounted on a wiring board such as a mother board.
- FIG. 1 is a perspective view showing one embodiment of a surface mount type component of the present invention.
- FIG. 2 is a perspective view showing a state immediately before mounting the surface mount type component shown in FIG. 1 on a motherboard.
- FIG. 3 is a cross-sectional view showing a state after the surface-mounted component shown in FIG. 1 is mounted on a motherboard.
- FIG. 4 is an enlarged side view showing an essential part of the surface-mounted component after the surface-mounted component shown in FIG. 1 is mounted on a motherboard.
- FIGS. 5 (a) and 1 (d) are perspective views each showing a manufacturing process of the surface mount component shown in FIG. 1.
- FIG. 6 is a perspective view showing another embodiment of the surface-mounted component of the present invention.
- FIG. 7 is an enlarged side view showing a main part of the surface-mounted component after mounting the surface-mounted component shown in FIG. 6 on a motherboard.
- FIGS. 8 (a) and 1 (e) are perspective views each showing a manufacturing process of the surface mount component shown in FIG. 6.
- FIG. 9 is a perspective view showing still another embodiment of the surface mount component of the present invention.
- FIG. 10 is an enlarged side view showing a main part of the surface mount component after the surface mount component shown in FIG. 9 is mounted on a mother board.
- FIG. 11 (a)-(e) are perspective views each showing a manufacturing process of the surface mount component shown in FIG. 9.
- FIG. 12 is a cross-sectional view showing a state where the parent laminate in the state shown in FIG. 11D is cut along the dividing lines.
- FIG. 13 is a cross-sectional view showing a state where the parent laminate shown in FIG. 11 (e) is cut along the dividing lines.
- FIG. 14 is a perspective view showing still another embodiment of the surface mount component of the present invention.
- FIG. 15 is an enlarged side view showing a main part of the surface mount component after the surface mount component shown in FIG. 14 is mounted on a mother board.
- FIG. 16 is a perspective view showing a state after a conventional surface mount component having electrodes on side surfaces is mounted on a mother board.
- FIG. 17 is a cross-sectional view showing a state after the surface-mounted component shown in FIG. 16 is mounted on a mother board.
- FIG. 18 is a perspective view showing a state after a conventional surface mount type component having electrodes on the bottom surface is mounted on a mother board.
- FIG. 19 is a cross-sectional view showing a state after mounting the surface-mounted component shown in FIG. 18 on a motherboard.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/565,334 US8059420B2 (en) | 2003-07-22 | 2004-07-16 | Surface mountable device |
JP2005511853A JP4111222B2 (ja) | 2003-07-22 | 2004-07-16 | 表面実装型部品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003199968 | 2003-07-22 | ||
JP2003-199968 | 2003-07-22 |
Publications (1)
Publication Number | Publication Date |
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WO2005008698A1 true WO2005008698A1 (ja) | 2005-01-27 |
Family
ID=34074442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/010188 WO2005008698A1 (ja) | 2003-07-22 | 2004-07-16 | 表面実装型部品 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8059420B2 (ja) |
JP (1) | JP4111222B2 (ja) |
CN (1) | CN100585761C (ja) |
WO (1) | WO2005008698A1 (ja) |
Cited By (1)
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---|---|---|---|---|
JPWO2016203774A1 (ja) * | 2015-06-19 | 2017-10-12 | 日本電信電話株式会社 | フレキシブルプリント配線板のはんだ接合構造 |
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JP2944296B2 (ja) | 1992-04-06 | 1999-08-30 | 富士写真フイルム株式会社 | 感光性平版印刷版の製造方法 |
US6511790B2 (en) | 2000-08-25 | 2003-01-28 | Fuji Photo Film Co., Ltd. | Alkaline liquid developer for lithographic printing plate and method for preparing lithographic printing plate |
DE60137398D1 (de) | 2000-11-30 | 2009-03-05 | Fujifilm Corp | Lithographische Druckplattenvorläufer |
JP4790682B2 (ja) | 2007-09-28 | 2011-10-12 | 富士フイルム株式会社 | 平版印刷版原版 |
JP4994175B2 (ja) | 2007-09-28 | 2012-08-08 | 富士フイルム株式会社 | 平版印刷版原版、及びそれに用いる共重合体の製造方法 |
JP5164640B2 (ja) | 2008-04-02 | 2013-03-21 | 富士フイルム株式会社 | 平版印刷版原版 |
JP5183380B2 (ja) | 2008-09-09 | 2013-04-17 | 富士フイルム株式会社 | 赤外線レーザ用感光性平版印刷版原版 |
US8883401B2 (en) | 2009-09-24 | 2014-11-11 | Fujifilm Corporation | Lithographic printing original plate |
JP5512730B2 (ja) | 2012-03-30 | 2014-06-04 | 富士フイルム株式会社 | 平版印刷版の作製方法 |
DE102012212087A1 (de) * | 2012-07-11 | 2014-01-16 | Robert Bosch Gmbh | Leiterplatte mit einer Lotmittel führenden Kapillare |
JP6520861B2 (ja) | 2016-08-10 | 2019-05-29 | 株式会社村田製作所 | 電子部品 |
US11037709B2 (en) * | 2018-03-26 | 2021-06-15 | Panasonic Intellectual Property Management Co., Ltd. | Varistor and manufacturing method thereof |
CN113228832A (zh) * | 2018-11-07 | 2021-08-06 | 阿维科斯公司 | 具有配置用于视觉检查的端子的表面安装薄膜元件 |
JP7156919B2 (ja) | 2018-11-26 | 2022-10-19 | 矢崎総業株式会社 | カバー及び電気接続箱 |
WO2020262472A1 (ja) * | 2019-06-27 | 2020-12-30 | 京セラ株式会社 | 電子部品収納用パッケージ、電子装置、および電子モジュール |
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- 2004-07-16 JP JP2005511853A patent/JP4111222B2/ja active Active
- 2004-07-16 US US10/565,334 patent/US8059420B2/en not_active Expired - Fee Related
- 2004-07-16 CN CN200480001062A patent/CN100585761C/zh not_active Expired - Fee Related
- 2004-07-16 WO PCT/JP2004/010188 patent/WO2005008698A1/ja active Application Filing
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JPWO2016203774A1 (ja) * | 2015-06-19 | 2017-10-12 | 日本電信電話株式会社 | フレキシブルプリント配線板のはんだ接合構造 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005008698A1 (ja) | 2006-09-07 |
US8059420B2 (en) | 2011-11-15 |
US20070274055A1 (en) | 2007-11-29 |
CN1701401A (zh) | 2005-11-23 |
CN100585761C (zh) | 2010-01-27 |
JP4111222B2 (ja) | 2008-07-02 |
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