WO2010064364A1 - プリント配線板及びその製造方法、プリント配線板半製品連鎖体 - Google Patents
プリント配線板及びその製造方法、プリント配線板半製品連鎖体 Download PDFInfo
- Publication number
- WO2010064364A1 WO2010064364A1 PCT/JP2009/006060 JP2009006060W WO2010064364A1 WO 2010064364 A1 WO2010064364 A1 WO 2010064364A1 JP 2009006060 W JP2009006060 W JP 2009006060W WO 2010064364 A1 WO2010064364 A1 WO 2010064364A1
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- WIPO (PCT)
- Prior art keywords
- printed wiring
- wiring board
- insulating layer
- bent
- metal substrate
- Prior art date
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Classifications
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
-
- 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
- H05K1/0277—Bendability or stretchability details
- H05K1/0278—Rigid circuit boards or rigid supports of circuit boards locally made bendable, e.g. by removal or replacement of material
-
- 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
-
- 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
-
- 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
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
-
- 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
- H05K2201/09745—Recess in conductor, e.g. in pad or in metallic substrate
-
- 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
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/0989—Coating free areas, e.g. areas other than pads or lands free of solder resist
-
- 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
- H05K2203/30—Details of processes not otherwise provided for in H05K2203/01 - H05K2203/17
- H05K2203/302—Bending a rigid substrate; Breaking rigid substrates by bending
Definitions
- the present invention relates to a printed wiring board to which electronic components such as LEDs (light emitting diodes) are attached, a manufacturing method thereof, and a printed wiring board semi-product chain used in the manufacturing method.
- LEDs light emitting diodes
- a printed wiring board to which an LED is attached may be bent and used or attached.
- this printed wiring board for example, an elongated rectangular metal substrate having an insulating layer on the surface is bent at a bent portion, and leg portions for attachment or the like are formed on both sides of the tip portion.
- a printed wiring portion for attaching the LED is provided on the surface of the insulating layer.
- Such a printed wiring board can be bent as long as the insulating layer is polyimide, as in Patent Document 1.
- a polyimide insulating layer is suitable for bending, but has a poor heat conductivity.
- the insulating layer contains an inorganic filler with good heat conductivity such as alumina or silica in an epoxy compound material. It is better to use something.
- an insulating layer containing an inorganic filler such as alumina or silica in an epoxy compound material is brittle and is not suitable for the above-mentioned bending process. If the bending process is performed, the insulating layer peels off over time at the bent part, causing damage. There is a risk of becoming.
- the problem to be solved is that the insulating layer containing the inorganic filler is brittle, and when bent, the insulating layer peels off over time at the bent portion, which may cause failure.
- a metal substrate having a brittle insulating layer on the surface is bent at a bent portion, and a tip portion and a leg portion intersecting the tip portion are formed.
- a printed wiring board provided integrally and provided with a printed wiring part for attaching an electronic component to at least the surface of the insulating layer at the tip, wherein the insulating layer is divided along the entire length of the bent part.
- a printed wiring board manufacturing method for manufacturing the printed wiring board wherein the insulating layer is divided into a corresponding portion of the bent portion before the metal substrate having the insulating layer is bent.
- the main feature of the printed wiring board manufacturing method is that the metal substrate is bent with the bent groove as a starting point.
- a printed wiring board semi-finished product chain used in the method for manufacturing a printed wiring board wherein the metal substrate having the insulating layer and the wiring portion is bent through a dividing groove having a V-shaped cross section between adjacent parts.
- a printed wiring board semi-finished product chain is formed by connecting a plurality of metal substrates before being bent and continuously forming the bent grooves or the bent grooves and the abutting grooves across the plurality of metal substrates so as to intersect the divided grooves. It is the most important feature of the body.
- a metal substrate having a brittle insulating layer on a surface is bent at a bent portion, and a tip portion and a leg portion intersecting the tip portion are integrally provided, and at least an insulating layer surface of the tip portion is provided with an electron
- a printed wiring board provided with a printed wiring portion for attaching a component, wherein an insulating layer dividing portion is provided that divides the insulating layer along the entire length of the bent portion.
- a method of manufacturing a printed wiring board for manufacturing the printed wiring board wherein the insulating layer is cut into a corresponding portion of the bent portion before bending the metal substrate including the insulating layer and the wiring portion.
- a V-shaped bent groove was provided, and the metal substrate was bent starting from the bent groove.
- a printed wiring board semi-finished product chain used in the method for manufacturing a printed wiring board wherein the metal substrate having the insulating layer and the wiring portion is bent through a dividing groove having a V-shaped cross section between adjacent parts.
- a plurality of metal substrates before being bent are provided in series, and the bent grooves or the bent grooves and the abutting grooves are formed continuously across the plurality of metal substrates so as to intersect the divided grooves.
- the metal substrate provided with the insulating layer and the wiring portion can be separated by the dividing groove before being bent, and the bending can be performed in a single state.
- Example 1 It is a top view of the metal substrate before bending.
- Example 1 It is sectional drawing of the metal substrate before bending.
- Example 1 It is sectional drawing of the printed wiring board after metal substrate bending.
- Example 1 It is a top view of a printed wiring board semi-finished product chain.
- Example 1 It is a top view of the metal substrate before bending.
- Example 2 It is sectional drawing of the metal substrate before bending.
- Example 2 It is sectional drawing of the printed wiring board after metal substrate bending.
- Example 2 It is a top view of a printed wiring board semi-finished product chain.
- Example 2 It is a top view of the metal substrate before bending.
- Example 3 It is sectional drawing of the metal substrate before bending.
- Example 3 It is sectional drawing of the printed wiring board after metal substrate bending.
- Example 3 It is sectional drawing of the metal substrate before bending.
- Example 4 It is sectional drawing of the printed wiring board after metal substrate bending.
- Example 4) It is sectional drawing of the metal substrate before bending.
- Example 5) It is sectional drawing of the printed wiring board after metal substrate bending. (Example 5)
- the purpose of suppressing the peeling off of the insulating layer over time was realized by a bent groove having a V-shaped cross section that divides the insulating layer.
- FIG. 1 is a cross-sectional view according to Embodiment 1 of the present invention in which an LED is supported on a printed wiring board.
- the printed wiring board 1 is integrally provided with a front end portion 7 and a pair of leg portions 9 and 11 intersecting with the front end portion 7.
- the intersection of the tip 7 and the pair of legs 9, 11 is orthogonal in the present embodiment, but can also be intersected at other angles.
- the front end portion 7 and the leg portions 9 and 11 are formed by bending, for example, an aluminum metal substrate 13 to the back surface 17 side by bending portions 15 and 16.
- An insulating layer 19 is provided on the surface 18 of the metal substrate 13.
- the metal substrate 13 uses aluminum having good heat conductivity for heat dissipation, but may be formed of any aluminum alloy or copper having good heat conductivity in addition to aluminum.
- the insulating layer 19 is made of, for example, a material mainly composed of a thermosetting resin such as an epoxy compound material and containing an inorganic filler having good heat conductivity such as alumina or silica. Therefore, the insulating layer 19 is brittle but has good heat conductivity.
- the tip portion 7 is formed in a rectangular shape, and the tip portion 7 is provided with a wiring portion 21 by printing of copper foil, and an LED (light emitting diode) 23 as an electronic component is mounted thereon.
- the leg portions 9 and 11 are formed to oppose the two edge portions 25 and 27 of the rectangular tip portion 7, extend along the elongated case, and are fixedly attached to the base portion on the case side.
- the leg portions 9 and 11 are used for attachment and constitute heat radiating fins.
- the bent portions 15 and 16 are provided with insulating layer dividing portions 31 and 33 that divide the insulating layer 19 along the entire outside length.
- the insulating layer dividing portions 31 and 33 are constituted by grooves 31a and 33a having a V-shaped cross section in the present embodiment.
- abutting portions 35 and 37 for determining the bending angle of the bent portions 15 and 16 are provided within the plate thickness of the metal substrate 13.
- the abutting portions 35 and 37 have their surfaces 35a and 37a abutted against each other, and the bending angle of the bent portions 15 and 16 is determined to be a right angle as described above.
- the bending angle can be selected from various types such as 60 ° other than a right angle.
- the heat generated by the LED 23 is transferred through the insulating layer 19 with good heat transfer to the tip portion 7 of aluminum with good heat transfer.
- the heat transferred is further transferred through the leg portions 9 and 11, and is radiated to the outside through the case and the like.
- [Method of manufacturing printed wiring board] 2 is a plan view of the metal substrate before bending
- FIG. 3 is a cross-sectional view thereof
- FIG. 4 is a cross-sectional view of the printed wiring board after the metal substrate is bent.
- 2 and 3 are manufactured as follows, for example, before bending.
- the metal substrate 13 is disposed on one surface of the semi-cured insulating material, the copper foil is disposed on the other surface, and integrated by a laminating press to form a copper-clad laminate structure.
- the metal substrate 13 provided with the insulating layer 19 before being bent is formed by punching into a size set by a press.
- the bent portion having a V-shaped cross section that divides the insulating layer 19 into the corresponding portions 41 and 43 of the bent portions 15 and 16.
- Two grooves 45 and 47 are provided. The bent grooves 45 and 47 are formed across the width direction of the metal substrate 13.
- two abutting grooves 49, 51 each having a V-shaped cross section are provided on the corresponding portions 41, 43 of the 15, 16 on the back surface 17 of the metal substrate 13 without an insulating layer.
- the abutting grooves 49 and 51 are arranged at positions corresponding to the front and back surfaces of the bent grooves 45 and 47.
- the bent grooves 45 and 47 and the abutting grooves 49 and 51 are formed with the same depth, and the bent grooves 45 and 47 are formed deeper than the thickness of the insulating layer 19.
- the thickness of the metal substrate 13 is 1 mm, and the depths of the bent grooves 45 and 47 and the abutting grooves 49 and 51 are about 0.35 mm, respectively.
- the remaining thickness between 49 and 51 is set to about 0.3 mm, which enables manual bending.
- the thickness of the metal substrate 13 is 1 to 3 mm, and the remaining thickness of any thickness of the metal substrate 13 is about 0.3 mm.
- the bent grooves 45 and 47 are close to the wiring portion 21, the bent grooves 45 and 47 are formed small, but the remaining thickness between the bent grooves 45 and 47 and the abutting grooves 49 and 51 is as follows. , About 0.3 mm.
- bent grooves 45 and 47 and the abutting grooves 49 and 51 are cut by a rotary blade that provides a chip embedded with diamond, for example, considering that the metal substrate 13 is aluminum.
- the metal substrate 13 is bent starting from the bent grooves 45, 47 and the abutting grooves 49, 51, and the surfaces 35a, 37a in the abutting grooves 49, 51 are closed so as to close the abutting grooves 49, 51. 4 to determine the bending angle of the bent portions 15 and 16 as described above, and the printed wiring board 1 of FIG. 4 can be obtained.
- the insulating layer dividing portions 31 and 33 of the printed wiring board 1 are configured by expanding the bending grooves 45 and 47 of the metal substrate 13 before bending.
- FIG. 5 is a plan view of the printed wiring board semi-finished product chain.
- the printed wiring board 1 shown in FIG. 4 can be formed by bending individual metal substrates 13 punched out by pressing as shown in FIGS. 2 and 3, but the printed wiring board half-product chain shown in FIG. It can also be formed from the body 53.
- An aluminum substrate material 55 capable of forming a plurality of unfolded metal substrates 13 in parallel in FIG. 5 is punched out with a press, and the insulating layer 19 is formed on the entire substrate material 55 by the same procedure as described above.
- the wiring part 21 is formed.
- dividing grooves 57, 59, 61, 63 having a V-shaped cross section are cut and formed on the front and back of the substrate material 55 with the same rotary blade as described above.
- the remaining thickness between the front and back dividing grooves 57, 59, 61, 63 is set to about 0.3 mm in consideration of division by manual work.
- the division grooves 57 and 63 divide the discard plate portions 65 and 67, and the division grooves 61 and 63 divide the discard plate portions 69 and 71.
- the dividing groove 59 is for dividing each metal substrate 13.
- bent grooves 45 and 47 and the abutting grooves 49 and 51 are continuously formed across the plurality of metal substrates 13 so as to cross the divided grooves 59.
- the discarded board portions 65, 67, 69, 71 provided in the periphery are divided and removed by the dividing grooves 57, 61, 63, and the metal substrate 13 is removed from the adjacent metal substrate 13.
- the printed wiring board 1 shown in FIG. 4 can be obtained sequentially by dividing the groove 59 into the same form as in FIG.
- the printed wiring board semi-finished product chain 53 of FIG. 5 can be formed as a chained body, and punched out with a press to form individual printed wiring board semi-finished product chains 53.
- the metal substrate 13 having the brittle insulating layer 19 on the surface is bent to the back surface 17 side by the bent portions 15 and 16, and the tip portion 7 and the leg portions 9 and 11 intersecting the tip portion 7 are intersected.
- insulating layer dividing portions 31 and 33 were formed by dividing the insulating layer 19.
- the insulating layer 19 weakened by bending does not exist outside the bent portions 15, 16, and the peeling off of the insulating layer 19 can be regulated and the failure due to the peeling off of the insulating layer 19 can be suppressed. .
- the insulating layer dividing portions 31 and 33 are grooves 31a and 33a having a V-shaped cross section.
- the insulating layer 19 can be reliably divided at the bent portions 15 and 16.
- the distal end portion 7 was formed in a rectangular shape, and the leg portions 9 and 11 were provided at two edge portions of the distal end portion 7.
- the abutting portions 35 and 37 for determining the bending angle of the bent portions 15 and 16 are provided within the thickness of the metal substrate 13 on the back surface 17 of the metal substrate 13 without the insulating layer 19.
- the bending angle of the bent portions 15 and 16 can be determined without increasing the plate thickness, which is advantageous for downsizing.
- the legs 9, 11 are radiating fins.
- the metal substrate 13 was formed of any one of aluminum, aluminum alloy, and copper.
- Folded grooves 45 and 47 having a V-shaped cross section for dividing the insulating layer 19 were provided, and the metal substrate 13 was bent starting from the bent grooves 45 and 47.
- the corresponding portions 41 and 43 of the bent portions 15 and 16 are provided with bent grooves 45 and 47 having a V-shaped cross section for dividing the insulating layer 19.
- Abutting grooves 49, 51 having a V-shaped cross section are provided on the corresponding portions 41, 43 of the bent portions 15, 16 on the back surface 17 of the metal substrate 13 without the insulating layer 19, and the bent grooves 45, 47, and
- the metal substrate 13 is bent starting from the abutting grooves 49, 51 and the surfaces 35a, 37a in the abutting grooves 49, 51 are abutted so as to close the abutting grooves 49, 51 so that the bent portions 15, 16 bending angles are determined.
- the bending angle of the bent portions 15 and 16 can be determined with certainty.
- the printed wiring board semi-finished product chain 53 used in the method for manufacturing the printed wiring board 1 is divided into a V-shaped cross section between adjacent parts before the metal substrate 13 including the insulating layer 19 and the wiring part 21 is bent.
- a plurality of unfolded metal substrates 13 are continuously provided through the grooves 59, and a plurality of the bent grooves 45, 47 or the bent grooves 45, 47 and the abutting grooves 49, 51 intersect with the divided grooves 59.
- the metal substrate 13 was continuously formed.
- the metal substrate 13 provided with the insulating layer 19 and the wiring part 21 can be detached manually by the dividing groove 59 in a state before bending, and the bending can be performed in a single state.
- the insulating layer 19 weakened by the bending does not exist outside the bent portions 15 and 16, and the peeling off of the insulating layer 19 is restricted. In addition, it is possible to suppress a failure due to the peeling off of the insulating layer 19.
- the printed wiring board semi-finished product chain 53 was provided with discard board portions 65, 67, 69, 71 through 57, 61, 63 through a V-shaped dividing groove in the periphery.
- careless handling in the dividing groove 59 between the metal substrates 13 can be restricted until the metal substrate 13 is separated as a single unit, and the handling can be facilitated.
- FIG. 6 is a plan view of a metal substrate before bending
- FIG. 7 is a sectional view thereof
- FIG. 8 is a printed wiring board after bending of the metal substrate
- FIG. 9 is a plan view of a printed wiring board semi-finished product chain.
- the basic configuration is the same as that of the first embodiment, and the same or corresponding components will be described with the same reference numerals or the same reference numerals marked with A.
- the printed wiring board 1 ⁇ / b> A of the present embodiment includes a wiring portion 21 ⁇ / b> Aa at the distal end portion 7, and a print for attaching an electronic component such as an LED to the surface of the insulating layer 19 of the legs 9 and 11.
- Wiring part 21Ab was provided.
- the board half-product chain 53A is the same as the printed wiring board half-product chain 53 shown in FIG.
- FIG. 10 is a plan view of a metal substrate before bending
- FIG. 11 is a sectional view thereof
- FIG. 12 is a printed wiring board after bending of the metal substrate. It is sectional drawing.
- the basic configuration is the same as that of the second embodiment, and the same or corresponding components will be described with the same reference numerals or the same reference signs A replaced with B.
- the distal end portion 7B is formed in a rectangular shape, and the two leg portions 9B and 11B are respectively four edges of the distal end portion 7B. It is divided into parts.
- the method for manufacturing the printed wiring board 1B shown in FIGS. 10 to 12 is the same as the method for manufacturing the printed wiring board 1 of Example 1 shown in FIGS.
- each of the abutment grooves 49B and 51B is composed of a single piece, and two bent grooves 45B and 47B are formed in two insulating plane dividing portions 31B and 33B (two in FIG. 12) by bending the metal substrate 13B. In the cross section of FIG. 12, only a pair is shown.) Each of the surfaces 35a, 37a of the two abutment grooves 49B, 51B abuts to each other and the two bent portions 15B, 16B (however, in the cross section of FIG. 12). , Only one pair is shown), and the two abutting portions 35B and 37B are provided within the thickness of the metal substrate 13B.
- the present embodiment can achieve the same effects as the above embodiments.
- leg portions 9B and 11B are four in total, and even if an electronic component such as an LED is attached to each leg portion 9B and 11B via the wiring portion 21Bb, sufficient heat dissipation is ensured. Can do.
- the wiring portions 21Bb of the leg portions 9B and 11B can be omitted.
- FIGS. 13 and 14 relate to Example 4 of the present invention
- FIG. 13 is a cross-sectional view of a metal substrate before bending
- FIG. 14 is a cross-sectional view of a printed wiring board after bending of the metal substrate.
- the basic configuration is the same as that of the second embodiment, and the same or corresponding components will be described by substituting C for C or C for the same or corresponding components.
- the printed wiring board 1C of the present embodiment includes a wiring portion 21Ca on the back surface of the tip portion 7C, and also attaches electronic components, for example, LEDs, to the surface of the insulating layer 19C on the back surface of the legs 9C and 11C.
- a printed wiring portion 21Cb is provided.
- the extension portions 9Ca and 11Ca are formed on the leg portions 9C and 11C, and the wiring portion 21Cc is also provided on the surface of the insulating layer 19C on the back surface of the extension portions 9Ca and 11Ca.
- the manufacturing method of the printed wiring board 1C shown in FIGS. 13 and 14 is the same as the manufacturing method of the printed wiring board 1 of Example 1 shown in FIGS.
- the insulating layer 19C and the wiring portions 21Ca, 21Cb, and 21Cc are provided on the back side of the metal substrate 13C, and the abutting portions 35C and 37C constitute the insulating layer dividing portion.
- the present embodiment can achieve the same effects as those of the second embodiment.
- FIG. 15 and FIG. 16 relate to Example 5 of the present invention
- FIG. 15 is a cross-sectional view of a metal substrate before bending
- FIG. 16 is a cross-sectional view of a printed wiring board after bending of the metal substrate.
- the basic configuration is the same as that of the fourth embodiment, and the same or corresponding components will be described by substituting D for C or C for the same or corresponding components.
- the printed wiring board 1 ⁇ / b> D of the present embodiment has a single abutting portion 35 ⁇ / b> D and 37 ⁇ / b> D formed at each location, and is similar to the third embodiment.
- the abutting portions 35, 37, 35B, 37B, 35C, 37C, 35D, and 37D may be omitted.
- the abutting portions 35, 37, 35B, 37B, 35C, 37C, 35D, and 37D are omitted, in the manufacturing method of the printed wiring boards 1, 1A, 1B, 1C, and 1D, the abutting grooves 49, 51, 49B, 51B, 49C, 51C, 49D, and 51D are not formed. At this time, the remaining thickness for bending the metal substrates 13, 13A, 13B, 13C, and 13D is formed to be about 0.3 mm as described above.
- the abutting portions 35C, 37C, 35D, and 37D formed on the insulating layers 19C and 19D side are not omitted because they constitute an insulating layer dividing portion.
- the legs 9, 11, 9B, 11B, 9C, 11C, 9D, and 11D can be used for mere support, ignoring heat dissipation.
Abstract
Description
図1は、本発明実施例1に係り、プリント配線板にLEDを支持させた断面図である。
[プリント配線板の製造方法]
図2は、折り曲げ前の金属基板の平面図、図3は、同断面図、図4は、金属基板折り曲げ後のプリント配線板の断面図である。
[プリント配線板半製品連鎖体]
図5は、プリント配線板半製品連鎖体の平面図である。
[実施例1の効果]
本発明実施例1は、表面に脆性な絶縁層19を備えた金属基板13を折曲部15,16で裏面17側へ折り曲げて先端部7とこの先端部7に交差する脚部9,11とを一体に設け、少なくとも前記先端部7の絶縁層19表面に、LED23を取り付けるためのプリントされた配線部21を備えるプリント配線板1であって、前記折曲部15,16の外側全長に沿って、前記絶縁層19を分断した絶縁層分断部31,33を設けた。
[その他]
上記各実施例において、突当部35,37,35B,37B,35C,37C,35D,37Dは省略することもできる。突当部35,37,35B,37B,35C,37C,35D,37Dを省略するときは、プリント配線板1,1A,1B,1C,1Dの製造方法において、突当溝49,51,49B,51B,49C,51C,49D,51Dは、形成されない。このとき、金属基板13,13A,13B,13C,13D折り曲げ用の残余厚みは、前記同様に0.3mm程度に形成される。
7,7B,7C,7D 先端部
9 ,11,9B,11B 脚部
13,13A,13B 金属基板
15,16 分割部
17 裏面
18 表面
19 絶縁層
23 LED(電子部品)
25,27 2辺縁部
31,33,31B,33B 絶縁層分断部
35,37,35B,37B 突当部
35C,37C,35D,37D 突当部(絶縁層分断部)
35a,37a 面
41,43 折曲部の対応部
45,47,45B,47B 折曲溝
49,51,49B,51B,49C,51C 突当溝
57,59,61,63 分割溝
65,67,69,71 捨て板部
Claims (11)
- 表面に脆性な絶縁層を備えた金属基板を折曲部で折り曲げて先端部とこの先端部に交差する脚部とを一体に設け、
少なくとも前記先端部の絶縁層表面に、電子部品を取り付けるためのプリントされた配線部を備えるプリント配線板であって、
前記折曲部の全長に沿って、前記絶縁層を分断した絶縁層分断部を設けた、
ことを特徴とするプリント配線板。 - 請求項1記載のプリント配線板であって、
前記絶縁層分断部は、断面V字状の溝である、
ことを特徴とするプリント配線板。 - 請求項1又は2記載のプリント配線板であって、
前記先端部は、矩形状に形成され、
前記脚部は、前記先端部の2辺縁部又は4辺縁部に設けられた、
ことを特徴とするプリント配線板。 - 請求項1~3のいずれかに記載のプリント配線板であって、
前記脚部の絶縁層表面に、電子部品を取り付けるためのプリントされた配線部を備えた、
ことを特徴とするプリント配線板。 - 請求項1~4のいずれかに記載のプリント配線板であって、
前記折曲部の折り曲げ角度を決定する突当部を該金属基板の板厚内に設けた、
ことを特徴とするプリント配線板。 - 請求項1~5のいずれかに記載のプリント配線板であって、
前記脚部は、放熱フィンである、
ことを特徴とするプリント配線板。 - 請求項1~6のいずれかに記載のプリント配線板であって、
前記金属基板は、アルミ、アルミ合金、銅のいずれかで形成された、
ことを特徴とするプリント配線板。 - 請求項1~7のいずれかに記載のプリント配線板を製造するためのプリント配線板の製造方法であって、
前記絶縁層及び配線部を備えた金属基板の折り曲げ前に、前記折曲部の対応部に前記絶縁層を分断する断面V字状の折曲溝を設け、
前記折曲溝を起点に前記金属基板を折り曲げた、
ことを特徴とするプリント配線板の製造方法。 - 請求項5~7のいずれかに記載のプリント配線板を製造するためのプリント配線板の製造方法であって、
前記絶縁層及び配線部を備えた金属基板の折り曲げ前に、前記折曲部の対応部に前記絶縁層を分断する断面V字状の折曲溝又は突当溝の少なくとも一方を設けると共に、前記金属基板の絶縁層のない裏面で前記折曲部の対応部に断面V字状の突当溝を設け、
前記折曲溝及び突当溝を起点に前記金属基板を折り曲げると共に、前記突当溝を閉じるように突当溝内の面を突き当てて前記折曲部の折り曲げ角度を決定する突当部とした、
ことを特徴とするプリント配線板の製造方法。 - 請求項8又は9記載のプリント配線板の製造方法に用いるプリント配線板半製品連鎖体であって、
前記絶縁層及び配線部を備えた金属基板の折り曲げ前に、隣接間に断面V字状の分割溝を介して該折り曲げ前の金属基板を複数連設し、
前記分割溝に交差して前記折曲溝又は前記折曲溝及び突当溝を複数の金属基板に渡って連続形成した、
ことを特徴とするプリント配線板半製品連鎖体。 - 請求項10記載のプリント配線板半製品連鎖体は、周辺に断面V字状の分割溝を介して捨て板部を備えた、
ことを特徴とするプリント配線板半製品連鎖体。
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KR101330770B1 (ko) * | 2011-11-16 | 2013-11-18 | 엘지이노텍 주식회사 | 백라이트 유닛용 절곡 인쇄회로기판 |
KR101304733B1 (ko) | 2011-12-26 | 2013-09-05 | 주식회사 포스코 | 방열구조를 가지는 인쇄회로기판 및 이를 포함하는 led 조명장치 |
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KR101352519B1 (ko) | 2012-10-08 | 2014-01-17 | 정인원 | 연성인쇄회로 및 이의 제조 방법 |
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KR102170480B1 (ko) * | 2013-12-09 | 2020-10-28 | 엘지이노텍 주식회사 | 인쇄회로기판 |
CN105472878A (zh) * | 2016-01-05 | 2016-04-06 | 友达光电(厦门)有限公司 | 软性电路板以及显示装置 |
CN107035979A (zh) * | 2017-04-27 | 2017-08-11 | 浙江阳光美加照明有限公司 | 一种可弯折的灯丝条及使用该灯丝条的led灯丝灯 |
WO2021199866A1 (ja) * | 2020-03-30 | 2021-10-07 | 株式会社村田製作所 | 回路モジュール |
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- 2009-11-12 WO PCT/JP2009/006060 patent/WO2010064364A1/ja active Application Filing
- 2009-11-12 KR KR1020117012557A patent/KR101224997B1/ko active IP Right Grant
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CN102227957B (zh) | 2013-10-16 |
KR20110082598A (ko) | 2011-07-19 |
KR101224997B1 (ko) | 2013-01-22 |
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