WO2010064570A1 - 部品の取付方法及びこれによって製造される装置 - Google Patents
部品の取付方法及びこれによって製造される装置 Download PDFInfo
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- WO2010064570A1 WO2010064570A1 PCT/JP2009/069939 JP2009069939W WO2010064570A1 WO 2010064570 A1 WO2010064570 A1 WO 2010064570A1 JP 2009069939 W JP2009069939 W JP 2009069939W WO 2010064570 A1 WO2010064570 A1 WO 2010064570A1
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- Prior art keywords
- molten material
- welded portion
- component
- welded
- solder
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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
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4228—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements
- G02B6/4232—Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements using the surface tension of fluid solder to align the elements, e.g. solder bump techniques
-
- 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
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09781—Dummy conductors, i.e. not used for normal transport of current; Dummy electrodes of components
-
- 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
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/043—Reflowing of solder coated conductors, not during connection of components, e.g. reflowing solder paste
-
- 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
- H05K2203/167—Using mechanical means for positioning, alignment or registration, e.g. using rod-in-hole alignment
-
- 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
- H05K3/3452—Solder masks
-
- 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
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3478—Applying solder preforms; Transferring prefabricated solder patterns
-
- 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 method for attaching a component to a main body and an apparatus manufactured thereby.
- Patent Documents 1 and 2 below describe techniques for attaching an optical component such as an optical fiber to a substrate.
- Patent Document 3 describes a technique for patterning a conductive layer for wiring and positioning a component using the conductive layer (that is, a wiring pattern). However, considerable time and cost are required to form the wiring pattern so thick that the optical fiber can be positioned.
- the present invention has been made in view of the above situation.
- One of the objects of the present invention is to provide a technique for attaching parts with relatively high accuracy and simple process.
- the present invention is configured as described in any of the following items.
- a method for mounting components comprising the following steps: (1) forming a welded portion and a non-welded portion adjacent to each other on the surface of the main body; (2) disposing a molten material in the welded portion and welding the molten material to the welded portion; (3) A step of attaching a component to the main body using the molten material welded to the welded portion as a positioning guide.
- the melted material can be positioned relatively accurately with the non-welded portion adjacent to the welded portion. Moreover, in this invention, since the components are positioned by the molten material welded to the welded portion, the process is simple and the cost for manufacturing the product can be kept low.
- the welding between the molten material and the welded portion can be performed, for example, by heating the molten material after placing the molten material on the upper surface of the welded portion.
- the welded portion and the non-welded portion are formed by transferring the mask pattern, the relative positional accuracy between the welded portions and the relative positional accuracy between the welded portion and the non-welded portion are increased. Can do.
- the molten material is solder, the welded portion is made of metal, and the non-welded portion is made of a solder resist layer, Furthermore, the said non-welding part is formed in the vicinity of the said welding part, and is provided with the standup
- the molten material can be positioned using the rising portion of the non-welded portion formed by the solder resist layer.
- Item 4 The method for attaching a component according to Item 3, wherein the molten material is formed in a substantially ball shape before being welded to the welded portion.
- the ball shape is not limited to a spherical shape, and may be an elliptical spherical shape or a polyhedral shape.
- Item 5 The component mounting method according to Item 4, wherein the side surface of the molten material is bulged toward the non-welded portion in a state where the side surface of the molten material is welded to the welded portion.
- the solder arranged in the welded portion is difficult to spread in the direction of the material having low wettability with respect to the solder. Therefore, in this invention, the positioning function of molten material can be exhibited by the non-welding part.
- (Item 7) The component mounting method according to any one of items 1 to 6, wherein a coating layer made of a material harder than the molten material is disposed on a surface of the molten material.
- the welded portion and the non-welded portion can be formed in a predetermined shape by photolithography.
- photolithography for example, after exposing and altering a film for forming a welded portion or a non-welded portion, ⁇ any one of the altered portion and the unaltered portion '' A technique of removing by appropriate means such as etching.
- the exposure means various techniques such as ultraviolet exposure using a photomask and laser exposure in which scanning is performed with laser light can be used.
- a concave portion for forming a contact surface or a contact line with the surface of the molten material is formed,
- the main body includes a welded portion and a non-welded portion,
- the welded portion is made of a material that is easily welded to the molten material
- the non-welded portion is made of a material that is difficult to weld to the molten material
- the said non-welding part is arrange
- the molten material is welded to the welded portion in a state adjacent to the non-welded portion,
- the device is attached to the main body using the molten material as a positioning guide.
- Step SA-1 in FIG. 2 First, the metal film 2 is formed on the upper surface of the substrate 1 (see FIG. 1A).
- corresponds to an example of the main body in this invention.
- a copper foil made of a copper alloy is used as the metal film 2.
- a metal that can be used as the metal film 2 for example, gold, aluminum, or an alloy thereof can be used in addition to a copper alloy.
- the metal film 2 it is possible to use a material that can be welded to solder as a molten material described later.
- solder resist layer 3 is formed on the upper surface of the metal film 2.
- the solder resist layer 3 is formed on the entire upper surface of the metal film 2, but it is also possible to form the solder resist layer 3 only at necessary places.
- a resin having low wettability with solder is used as the material of the solder resist layer 3.
- An example of such a resin is an epoxy resin.
- Step SA-3 in FIG. 2 Next, the solder resist layer 3 is partially removed using the mask pattern. Specifically, first, a mask pattern (not shown) is placed on the upper surface of the solder resist layer 3. Thereafter, the solder resist layer 3 is exposed by irradiating light (for example, ultraviolet rays) from the upper surface of the mask pattern. Next, the exposed portion is removed by etching. As a result, as shown in FIG. 1A, the solder resist layer 3 can be partially removed to expose part of the metal film 2. That is, in this embodiment, the mask pattern can be transferred to the solder resist layer 3 in this way.
- irradiating light for example, ultraviolet rays
- the weld portion 21 is constituted by the metal film 2 exposed to the outside by removing the solder resist layer 3.
- the non-welded portion 31 is constituted by the remaining solder resist layer 3.
- a rising portion 32 is formed (see FIG. 1A). The rising portion 32 surrounds the welded portion 31 in this embodiment.
- the exposed portion is removed, but it is also possible to adopt a means for removing the non-exposed portion by selecting the material.
- Step SA-4 in FIG. 2 Next, the molten material 4 is placed on the welded portion 21 (see FIG. 1B).
- a solder ball is used as the molten material 4.
- the solder ball is solder formed in a ball shape.
- Step SA-5 in FIG. 2 Next, the molten material 4 is heated to melt the molten material 4 and weld it to the welded portion 4. Specifically, for example, the whole including the substrate 1 itself is placed in a reflow furnace and heated. Since the melting temperature of the solder is generally much lower than the melting temperature of the solder resist layer 3, the metal film 2, and the substrate 1, only the solder can be dissolved.
- the dissolved solder is deformed along the shape of the non-welded portion 31 formed in the solder resist layer 3. For this reason, in this embodiment, the solder can be positioned by the non-welded portion 31 adjacent to the welded portion 21.
- the solder can be positioned more reliably.
- Step SA-6 in FIG. 2 Next, the component 5 is attached to the substrate 1 using the molten material 4 welded to the welded portion 21 as a positioning guide.
- the component 5 is attached to the substrate 1 using the molten material 4 welded to the welded portion 21 as a positioning guide.
- two optical fibers are used as an example of the component 5.
- the relative positional accuracy between the welded portions 21 and the relative relationship between the welded portion 21 and the non-welded portion 31 are formed. Accurate position accuracy can be increased. Assuming a general transfer technique, the relative positional accuracy is considered to be about ⁇ 10 ⁇ m. Such an error is considered to be sufficiently accurate in the connection of optical components.
- the component 5 is positioned by the molten material welded to the welded portion 21, the mounting process is simple, and the cost for manufacturing the product can be kept low.
- the mounting method of this embodiment has an advantage that high mounting accuracy can be realized while the process is simple.
- this method has an advantage that high mounting accuracy required for positioning optical components (for example, light receiving and emitting elements and optical fibers) can be realized by a simple process.
- a product (apparatus) manufactured according to the present embodiment includes a substrate 1 as a main body, a component 5, and a molten material 4, as shown in FIG.
- the main body 1 includes a welded portion 21 and a non-welded portion 31.
- the welded portion 21 and the non-welded portion 31 are formed by transferring a mask pattern to the substrate 1.
- the welding portion 21 is made of a material that is easily welded to the molten material 4, for example, a metal.
- the non-welded portion 31 is made of a material that is difficult to weld to the molten material 4, for example, a solder resist layer.
- the non-welded portion 31 is disposed adjacent to the welded portion 21.
- the molten material 4 is welded to the welded portion 21 in a state adjacent to the non-welded portion 21.
- the component 5 is attached to the substrate 1 using the molten material 4 as a positioning guide.
- the shape of the molten material 4 is a shape in which the upper part is narrow and gradually widens. For this reason, the space
- solder is used as the molten material 4, by melting the solder, it is possible to easily form the shape with the lower side expanded as described above using the surface tension. .
- such a positioning function can be exhibited even when the middle part of the molten material 4 has the widest shape. When ball-shaped solder is used, such a shape can be formed relatively easily.
- solder ball is exemplified as the molten material, but a solder paste can also be used.
- solder paste it is preferable to precisely control the coating amount.
- solder configured in a stripe shape can be used as the molten material. In this case, for example, long solder can be arranged in the depth direction of the paper surface in FIG.
- the welded portion 21 and the non-welded portion 31 are formed using a mask pattern.
- the use of the mask pattern can be omitted by using a laser exposure technique.
- the positional accuracy of laser irradiation is high, the positional accuracy of the welded portion 21 and the non-welded portion 31 can be increased.
- a plate-like optical waveguide is used as the component 5. As shown in this embodiment, in the case of a plate-shaped optical waveguide, positioning can be performed by abutting the side surface against the molten material 4.
- symbol 501 in FIG. 3 has shown the core part in an optical waveguide.
- the electrical wiring 6 is formed on the upper surface of the substrate 1 in addition to the welded portion 21.
- the electrical wiring 6 can also be formed by a so-called photolithography technique (see FIG. 4A).
- the molten material 4 is placed on the welded portion 21 (see FIG. 4B). Then, the molten material 4 and the welding part 21 can be fixed by melting the molten material 4 (refer FIG.4 (c)).
- a conductive adhesive 61 is placed on the electric wiring 6 (see FIG. 4D).
- a submount for a light receiving / emitting element is used as the component 5. Also in this embodiment, the component 5 can be positioned using the molten material 4.
- reference numeral 504 indicates a light emitting / receiving element
- reference numeral 503 indicates a side electrode
- reference numeral 504 indicates a gold wire for connection.
- the conductive adhesive 61 can be pressed against the electrode in the submount as the component 5, and the submount and the electrical wiring 6 can be electrically connected.
- the conductive adhesive 61 can be surrounded by the thick solder resist layer 3. For this reason, in this embodiment, there is also an advantage that the risk that the conductive adhesive 61 protrudes to the surroundings and short-circuits with an adjacent electrode can be reduced.
- the submount and the electric wiring 6 can be electrically connected by heating the solder having a low melting point at a temperature at which the molten material 4 does not melt.
- the position in the width direction of the component 5 can be uniquely determined.
- the molten material 4 is arranged at six locations on the upper surface of the substrate 1 as shown in FIG. 6, and the component 5 is positioned by these molten materials 4.
- the component 5 in this embodiment is a submount.
- the position of the component 5 on the substrate can be uniquely determined.
- the molten material 4 is disposed at a total of 10 locations on the upper surface of the substrate 1 as shown in FIG. 7, and the two types of components 5 are positioned by these molten materials 4. That is, the sixth embodiment is configured by combining the positioning method in the fourth embodiment and the positioning method in the fifth embodiment.
- the molten material 4 as in this embodiment, for example, it is possible to accurately position the optical fiber and the submount.
- a coating layer 41 harder than the molten material 4 is applied to the surface of the molten material 4.
- a material of the covering layer 41 a material harder than the molten material 4, for example, a nickel alloy or a titanium alloy can be used.
- a method for attaching the coating layer 41 to the molten material for example, plating can be used.
- the method of the seventh embodiment it is possible to prevent the molten material 4 from being deformed by the external force applied to the molten material 4 by the coating layer 41, so that the positioning function by the molten material 4 can be surely exhibited.
- the substrate is often transported in a factory, there is a possibility that an impact is applied to the molten material 4 due to the falling of the substrate or the like. For this reason, this advantage is important in the practical application of the technique of the present invention.
- the component 5 when a long material such as an optical fiber is used as the component 5, the component 5 is placed on the substrate 1 while being bent or deformed into an arbitrary shape. Can do.
- the interval between the molten materials 4 is set narrower than the width of the component 5.
- the component 5 can be disposed above the substrate 1. That is, in the ninth embodiment, the component 5 can be positioned above the substrate 1.
- the interval between the molten materials 4 is set slightly wider than the width of the component 5 than in the first embodiment. Furthermore, in this embodiment, the groove 11 is formed on the upper surface of the substrate 1.
- the component 5 by bringing the component 5 into contact with the molten material 4, the component 5 can be disposed at a position where it sinks into the substrate 1.
- FIGS. 12 a component mounting method according to an eleventh embodiment of the present invention will be described with reference to FIGS.
- a mirror is used as the component 5.
- a lens is used as the component 5.
- the method of the present invention is effective for mounting various optical components that require precise optical axis alignment.
- FIG. 14 an electronic component such as an IC is used as the component 5.
- a solder material 62 having a normal melting point or a low melting point is disposed between the electrical wiring 6 formed on the substrate 1 and the component 5.
- a high melting point solder material is used as the molten material 4 in this example.
- the component 5 and the electrical wiring 6 can be electrically connected by placing the substrate in the reflow furnace. Furthermore, in this embodiment, since the melting material 4 is made of high melting point solder, it is possible to avoid the melting of the melting material 4 and ensure the positioning accuracy of the component 5.
- FIG. 15 an electronic component such as an IC is used as the component 5.
- a conductive adhesive 63 is disposed between the electrical wiring 6 formed on the substrate 1 and the component 5.
- the molten material 4 in this example a solder material having a high melting point or a normal melting point is used.
- the component 5 and the electrical wiring 6 can be electrically connected, while the molten material 4 can be avoided from being melted and the positioning accuracy of the component 5 can be ensured. Is possible.
- a holder 51 is disposed between the component 5 and the substrate 1.
- the holder 51 is positioned by the molten material 4, and the optical fiber as the component 5 is positioned by the holder 51.
- the present invention includes positioning the part 5 indirectly via the holder.
- FIG. 17 a component mounting method according to a fifteenth embodiment of the present invention will be described with reference to FIGS.
- the side surface of the molten material 4 bulges toward the non-welded portion 31 in a state where it is welded to the welded portion 21.
- the configuration as shown in FIG. 17 can be realized relatively easily by reducing the area of the welded portion 21.
- the part 5 may ride on the molten material 4 and the part 5 may tilt. If it will be in a state like FIG. 18, it will be difficult to ensure the attachment precision of components. For this reason, in the operation
- the shape of the molten shape 4 is narrow at the upper end. For this reason, also in this embodiment, it has the advantage that it is easy to arrange
- the substrate 1 is used as the main body.
- the submount 100 is used as the main body.
- the submount 100 is made of ceramic or glass epoxy resin.
- the submount 100 is made of ceramic mainly composed of AlN.
- the solder resist layer 3 is used. However, in the sixteenth embodiment, the solder resist layer 3 is not used.
- the metal film 2 is attached to the surface of the submount 100 using an appropriate method such as sputtering or vacuum deposition (see FIG. 19A). At this time, the position and shape of the metal film 2 can be brought into a desired state using the mask pattern. Further, the attached metal film 2 becomes a welded portion 21.
- the surface of the submount 100 existing around the welded portion 21 is made of a material having low wettability with respect to the solder as the molten material 4. In general, ceramic and resin have low wettability with respect to solder. Therefore, in this embodiment, the surface of the submount 100 around the welded portion 21 is a non-welded portion 31.
- the molten material 4 is placed on the welded portion 21 (see FIG. 19B). Further, the molten material 4 is heated and welded to the weld portion 21. At this time, the non-welded portion 31 around the welded portion 21 has low wettability with respect to the molten material 4, so that the melted molten material 4 remains in the range of the welded portion 21. Therefore, also in this embodiment, the molten material 4 can be attached to the submount 100 with high accuracy.
- the light emitting / receiving element as the component 5 can be attached to the submount 100 with high accuracy.
- the welded portion is made of metal and the non-welded portion is made of a material having low wettability with respect to solder”.
- a recess 52 for forming a contact surface or contact line with the surface of the molten material 4 is formed.
- the recess 52 is formed by a through hole that penetrates the component 5.
- the component 5 is configured to be positioned with respect to the molten material 4 by disposing the molten material 4 inside the recess 52 (see FIG. 21B). Specifically, when the inner surface of the recess 52 contacts the surface of the molten material 4, the positional relationship between the two can be determined.
- the contact state between the molten material 4 and the recess 52 contact between surfaces, contact between a surface and a line, contact between a surface and a plurality of points (for example, a plurality of protrusions formed on the inner surface of the recess) can be considered. .
- the contact between the molten material 4 and the recess 52 may be anything that can determine the positional relationship between them.
- the concave portion 52 is formed in the component 5, and the concave portion 52 is brought into contact with the molten material 4, so that the positioning of the component 5 and the molten material 4 can be performed easily and accurately. Further, in this embodiment, even if the number of the molten materials 4 is small, the component 5 can be positioned with high accuracy, so that the material for the molten material 4 and the installation space can be reduced.
- a concave portion 53 for forming a contact surface or contact line with the surface of the molten material 4 is formed.
- the recess 53 is formed by a notch formed on the side surface of the component 5.
- the component 5 is configured to be positioned with respect to the molten material 4 by disposing the molten material 4 inside the recess 53 (see FIG. 23B). Specifically, when the three side surfaces of the recess 53 come into contact with the surface of the molten material 4, the positional relationship between them can be determined.
- the concave portion 53 is formed in the component 5, and the concave portion 53 is brought into contact with the molten material 4, so that the positioning of the component 5 and the molten material 4 can be performed easily and accurately.
- the component 5 in the nineteenth embodiment is an optical fiber.
- a concave portion 54 for forming a contact surface or contact line with the surface of the molten material 4 is formed on the side surface of the component 5.
- the recess 54 is formed by partially removing the side surface of the component 5.
- the component 5 is a plastic optical fiber (POF)
- POF plastic optical fiber
- such a shape can be easily formed.
- the optical fiber is a quartz fiber, such processing is relatively easy if the resin coating portion outside the fiber is targeted.
- the component 5 is configured to be positioned with respect to the molten material 4 by disposing the molten material 4 inside the recess 54 (see FIG. 25B).
- this embodiment has an advantage that the optical fiber can be accurately positioned in the light traveling direction.
- the concave portion 54 is formed in the component 5 and the concave portion 54 is brought into contact with the molten material 4 so that the positioning of the component 5 and the molten material 4 can be performed easily and accurately. Note that even when the molten material 4 bulges in the direction of measurement as shown in FIG. 17, the molten material 4 can be accommodated in the recess 54 and the component 5 can be positioned. In this case, the side surface of the molten material 4 comes into contact with the inner surface of the recess 54.
- a concave portion 55 for forming a contact surface or contact line with the surface of the molten material 4 is formed.
- the recess 55 is formed by denting or deleting the bottom surface of the component 5.
- FIG. 26 shows an example in which the recess 55 has a substantially spherical shape.
- FIG. 27 shows an example in which the recess 55 is substantially cylindrical and its axis is arranged in the vertical direction in the figure.
- the component 5 is configured to be positioned with respect to the molten material 4 by disposing the molten material 4 inside the recess 55 (see FIGS. 26 and 27).
- the concave portion 55 is formed in the component 5, and the concave portion 55 is brought into contact with the molten material 4, so that the positioning of the component 5 and the molten material 4 can be performed easily and accurately.
- FIG. 1A shows a state in which a metal film is formed on the surface of the submount.
- FIG. 2B shows a state where solder is placed on the upper part of the metal film.
- FIG. 1 (a) shows a plan view of the substrate before mounting the components.
- FIG. (B) shows a plan view of the substrate after mounting the components. It is explanatory drawing for demonstrating the attachment method of the components which concern on 18th Embodiment of this invention, Comprising: The side view of the board
- FIG. 1 (a) shows a plan view of the substrate before mounting the components.
- FIG. (B) shows a plan view of the substrate after mounting the components.
- substrate is shown. It is explanatory drawing for demonstrating the attachment method of the components which concern on 18th Embodiment of this invention.
- FIG. 1 (a) shows a plan view of the substrate before mounting the components.
- FIG. (B) shows a plan view of the substrate after mounting the components. It is explanatory drawing for demonstrating the attachment method of the components which concern on 19th Embodiment of this invention, Comprising: The side view of the board
- FIG. 1 (a) shows a plan view of the substrate before mounting the components.
- FIG. (B) shows a plan view of the substrate after mounting the components. It is explanatory drawing for demonstrating the attachment method of the components which concern on 20th Embodiment of this invention, Comprising: The sectional view of the board
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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Light Receiving Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
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Abstract
Description
以下のステップを備える、部品の取付方法:
(1)本体表面に、溶着部と非溶着部とを隣接して形成するステップ;
(2)前記溶着部に溶融材料を配置して、前記溶融材料を前記溶着部に溶着するステップ;
(3)前記溶着部に溶着された前記溶融材料を位置決め用のガイドとして、部品を前記本体に取り付けるステップ。
前記溶着部と前記非溶着部とは、マスクパターンを転写することによって既定の形状に形成されている
項目1に記載の部品の取付方法。
前記溶融材料は、ハンダであり、前記溶着部は、金属によって構成されており、前記非溶着部は、ソルダレジスト層により構成されており、
さらに、前記非溶着部は、前記溶着部の近傍に形成されており、かつ、前記溶融材料の位置決めをするための立ち上がり部を備えている
項目1又は2に記載の部品の取付方法。
前記溶融材料は、前記溶着部に溶着される前の状態において、略ボール状に形成されている
項目3に記載の部品の取付方法。
前記溶融材料の側面は、前記溶着部に溶着された状態において、非溶着部の方向に向けて膨出されている
項目4に記載の部品の取付方法。
前記溶融材料は、ハンダであり、前記溶着部は、金属によって構成されており、前記非溶着部は、前記ハンダに対して濡れ性が低い材料によって構成されている
項目1又は2に記載の部品の取付方法。
前記溶融材料の表面には、前記溶融材料よりも硬い材質で構成された被覆層が配置されている
項目1~6のいずれか1項に記載の部品の取付方法。
前記溶着部と前記非溶着部とは、フォトリソグラフィによって既定の形状に形成されている
項目1に記載の部品の取付方法。
前記部品には、前記溶融材料の表面との接触面又は接触線を構成するための凹部が形成されており、
前記部品は、前記凹部の内部に前記溶融材料の全部又は一部を配置することにより、前記溶融材料に対して位置決めされる構成となっている
項目1~8のいずれか1項に記載の部品の取付方法。
本体と、部品と、溶融材料とを備えており、
前記本体は、溶着部と、非溶着部とを備えており、
前記溶着部は、前記溶融材料に対して溶着しやすい材質によって構成されており、
前記非溶着部は、前記溶融材料に対して溶着しにくい材質によって構成されており、
かつ、前記非溶着部は、前記溶着部に隣接して配置されており、
前記溶融材料は、前記非溶着部に隣接した状態で、前記溶着部に溶着されており、
前記部品は、前記溶融材料を位置決め用のガイドとして、前記本体に取り付けられている
ことを特徴とする装置。
本発明の第1実施形態に係る、部品の取付方法を、図1及び図2に基づいて説明する。
まず、基板1の上面に、金属膜2を形成する(図1(a)参照)。なお、基板1は、本発明における本体の一例に対応している。金属膜2としては、この実施形態では、銅合金からなる銅箔が用いられている。金属膜2として用いることができる金属としては、銅合金の他に、例えば、金、アルミニウム、これらの合金を用いることができる。要するに、金属膜2としては、後述する溶融材料としてのハンダと溶着できる材料を用いることが可能である。
ついで、金属膜2の上面に、ソルダレジスト層3を形成する。この実施形態では、金属膜2の上面全体に、ソルダレジスト層3を形成するが、必要な箇所のみにソルダレジスト層3を形成することも可能である。ソルダレジスト層3の材質としては、この実施形態では、ハンダとの濡れ性が低い樹脂が用いられている。そのような樹脂の一例としては、例えば、エポキシ系の樹脂を挙げることができる。
ついで、マスクパターンを用いて、ソルダレジスト層3を部分的に除去する。具体的には、まず、マスクパターン(図示せず)を、ソルダレジスト層3の上面に載せる。その後、前記マスクパターンの上面から光(例えば紫外線)を照射することにより、ソルダレジスト層3を露光させる。ついで、露光した部分をエッチングにより除去する。これによって、図1(a)に示されているように、ソルダレジスト層3を部分的に除去して、金属膜2の一部を露出させることができる。つまり、この実施形態では、このようにして、マスクパターンをソルダレジスト層3に転写することができる。
ついで、溶融材料4を溶着部21の上に載せる(図1(b)参照)。ここで、本実施形態においては、溶融材料4として、ハンダボールが用いられている。ハンダボールとは、ボール状に形成されたハンダである。
ついで、溶融材料4を加熱することにより、溶融材料4を溶解させて、溶着部4に溶着させる。具体的には、例えば、基板1自体を含む全体をリフロー炉に入れて加熱する。ハンダの溶解温度は、ソルダレジスト層3、金属膜2及び基板1の溶解温度よりも一般にかなり低いので、ハンダのみを溶解させることができる。
ついで、溶着部21に溶着された溶融材料4を位置決め用のガイドとして、部品5を基板1に取り付ける。この実施形態では、部品5の一例として、2本の光ファイバを用いている。
次に、本発明の第2実施形態について、図3を参照しながら説明する。第2実施形態の説明においては、前記した第1実施形態と同様の要素については、同一符号を付することにより、説明の煩雑を避ける。
次に、本発明の第3実施形態について、図4を参照しながら説明する。第3実施形態の説明においては、前記した第1実施形態と同様の要素については、同一符号を付することにより、説明の煩雑を避ける。
次に、本発明の第4実施形態に係る部品の取付方法を、図5に基づいて説明する。この例では、溶融材料4が、基板1の上面において、図5に示されるように、4カ所に配置され、これらの溶融材料4によって、部品5の位置決めを行っている。
次に、本発明の第5実施形態に係る部品の取付方法を、図6に基づいて説明する。この例では、溶融材料4が、基板1の上面において、図6に示されるように、6カ所に配置され、これらの溶融材料4によって、部品5の位置決めを行っている。
次に、本発明の第6実施形態に係る部品の取付方法を、図7に基づいて説明する。この例では、溶融材料4が、基板1の上面において、図7に示されるように、合計10カ所に配置され、これらの溶融材料4によって、2種類の部品5の位置決めをそれぞれ行っている。つまりこの第6実施形態は、第4実施形態での位置決め方法と、第5実施形態での位置決め方法とを組み合わせた構成となっている。
次に、本発明の第7実施形態に係る部品の取付方法を、図8に基づいて説明する。この実施形態では、溶融材料4の表面に、この溶融材料4より硬い被覆層41が施されている。被覆層41の材質としては、溶融材料4より硬い材質、たとえばニッケル合金やチタン合金を用いることができる。また、被覆層41を溶融材料に付着させる手法としては、例えばメッキを用いることができる。
次に、本発明の第8実施形態に係る部品の取付方法を、図9に基づいて説明する。この実施形態では、基板1の上面に、部品5としての光ファイバの延長方向に沿って、多数の溶融材料4を配置している。
次に、本発明の第9実施形態に係る部品の取付方法を、図10に基づいて説明する。この実施形態では、部品5の幅に対して、溶融材料4どうしの間隔を狭く設定している。
次に、本発明の第10実施形態に係る部品の取付方法を、図11に基づいて説明する。この実施形態では、部品5の幅に対して、溶融材料4どうしの間隔を、第1実施形態の場合よりも若干広く設定している。さらに、この実施形態では、基板1の上面に、溝11を形成している。
次に、本発明の第11実施形態に係る部品の取付方法を、図12及び図13に基づいて説明する。図12に示す例では、部品5として、ミラーが用いられている。また、図13に示す例では、部品5として、レンズが用いられている。本発明の方法は、精密な光軸合わせが必要な各種の光学部品の取り付けに有効である。
次に、本発明の第12実施形態に係る部品の取付方法を、図14に基づいて説明する。図14に示す例では、部品5として、ICなどの電子部品が用いられている。また、図14に示す例では、基板1に形成された電気配線6と部品5との間に、通常融点又は低融点のハンダ材料62が配置されている。一方、この例における溶融材料4としては、高融点のハンダ材料が用いられている。
次に、本発明の第13実施形態に係る部品の取付方法を、図15に基づいて説明する。図15に示す例では、部品5として、ICなどの電子部品が用いられている。また、図14に示す例では、基板1に形成された電気配線6と部品5との間に、導電性接着剤63が配置されている。一方、この例における溶融材料4としては、高融点又は通常融点のハンダ材料が用いられている。
次に、本発明の第14実施形態に係る部品の取付方法を、図16に基づいて説明する。図16に示す例では、部品5と基板1との間に、保持具51が配置されている。そして、この例では、保持具51を、溶融材料4によって位置決めし、保持具51により、部品5としての光ファイバを位置決めしている。このように、本発明は、保持具を介して間接的に部品5を位置決めすることを含んでいる。
次に、本発明の第15実施形態に係る部品の取付方法を、図17及び図18に基づいて説明する。図17に示す例では、溶融材料4の側面が、溶着部21に溶着された状態において、非溶着部31の方向に向けて膨出されている。図17のような構成は、溶着部21の面積を小さくすることで、比較的に容易に実現することができる。
次に、本発明の第16実施形態に係る部品の取付方法を、図19に基づいて説明する。
次に、本発明の第17実施形態に係る部品の取付方法を、図20及び図21に基づいて説明する。
次に、本発明の第18実施形態に係る部品の取付方法を、図22及び図23に基づいて説明する。
次に、本発明の第19実施形態に係る部品の取付方法を、図24及び図25に基づいて説明する。
次に、本発明の第20実施形態に係る部品の取付方法を、図26~図28に基づいて説明する。
Claims (10)
- 以下のステップを備える、部品の取付方法:
(1)本体表面に、溶着部と非溶着部とを隣接して形成するステップ;
(2)前記溶着部に溶融材料を配置して、前記溶融材料を前記溶着部に溶着するステップ;
(3)前記溶着部に溶着された前記溶融材料を位置決め用のガイドとして、部品を前記本体に取り付けるステップ。 - 前記溶着部と前記非溶着部とは、マスクパターンを転写することによって既定の形状に形成されている
請求項1に記載の部品の取付方法。 - 前記溶融材料は、ハンダであり、前記溶着部は、金属によって構成されており、前記非溶着部は、ソルダレジスト層により構成されており、
さらに、前記非溶着部は、前記溶着部の近傍に形成されており、かつ、前記溶融材料の位置決めをするための立ち上がり部を備えている
請求項1又は2に記載の部品の取付方法。 - 前記溶融材料は、前記溶着部に溶着される前の状態において、略ボール状に形成されている
請求項3に記載の部品の取付方法。 - 前記溶融材料の側面は、前記溶着部に溶着された状態において、非溶着部の方向に向けて膨出されている
請求項4に記載の部品の取付方法。 - 前記溶融材料は、ハンダであり、前記溶着部は、金属によって構成されており、前記非溶着部は、前記ハンダに対して濡れ性が低い材料によって構成されている
請求項1又は2に記載の部品の取付方法。 - 前記溶融材料の表面には、前記溶融材料よりも硬い材質で構成された被覆層が配置されている
請求項1~6のいずれか1項に記載の部品の取付方法。 - 前記溶着部と前記非溶着部とは、フォトリソグラフィによって既定の形状に形成されている
請求項1に記載の部品の取付方法。 - 前記部品には、前記溶融材料の表面との接触面又は接触線を構成するための凹部が形成されており、
前記部品は、前記凹部の内部に前記溶融材料の全部又は一部を配置することにより、前記溶融材料に対して位置決めされる構成となっている
請求項1~8のいずれか1項に記載の部品の取付方法。 - 本体と、部品と、溶融材料とを備えており、
前記本体は、溶着部と、非溶着部とを備えており、
前記溶着部は、前記溶融材料に対して溶着しやすい材質によって構成されており、
前記非溶着部は、前記溶融材料に対して溶着しにくい材質によって構成されており、
かつ、前記非溶着部は、前記溶着部に隣接して配置されており、
前記溶融材料は、前記非溶着部に隣接した状態で、前記溶着部に溶着されており、
前記部品は、前記溶融材料を位置決め用のガイドとして、前記本体に取り付けられている
ことを特徴とする装置。
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JP2008153629A (ja) * | 2006-11-22 | 2008-07-03 | Seiko Epson Corp | 半導体装置の製造方法 |
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JP3891297B2 (ja) * | 2003-10-02 | 2007-03-14 | セイコーエプソン株式会社 | 半導体装置製造用治具 |
US20060223313A1 (en) * | 2005-04-01 | 2006-10-05 | Agency For Science, Technology And Research | Copper interconnect post for connecting a semiconductor chip to a substrate and method of fabricating the same |
JP4251458B2 (ja) * | 2005-12-21 | 2009-04-08 | Tdk株式会社 | チップ部品の実装方法及び回路基板 |
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JPH0837397A (ja) * | 1994-07-22 | 1996-02-06 | Fujikura Ltd | プリント配線板と部品との位置決め方法 |
JPH10150043A (ja) * | 1996-11-20 | 1998-06-02 | Toshiba Corp | 金属ボールおよびその製造方法 |
JP2004004195A (ja) * | 2002-05-30 | 2004-01-08 | Ricoh Co Ltd | 光素子の高精度位置合わせ方法、高精度位置合わせ装置、及び光伝送用モジュール |
JP2006301610A (ja) * | 2005-03-25 | 2006-11-02 | Fuji Xerox Co Ltd | 光結合装置 |
JP2008153629A (ja) * | 2006-11-22 | 2008-07-03 | Seiko Epson Corp | 半導体装置の製造方法 |
JP2008145656A (ja) * | 2006-12-08 | 2008-06-26 | Fujitsu Access Ltd | 光ファイバーケーブル |
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