WO2009141929A1 - 配線板とその製造方法 - Google Patents
配線板とその製造方法 Download PDFInfo
- Publication number
- WO2009141929A1 WO2009141929A1 PCT/JP2008/073345 JP2008073345W WO2009141929A1 WO 2009141929 A1 WO2009141929 A1 WO 2009141929A1 JP 2008073345 W JP2008073345 W JP 2008073345W WO 2009141929 A1 WO2009141929 A1 WO 2009141929A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiring board
- flex
- printed wiring
- rigid printed
- conductor pattern
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4688—Composite multilayer circuits, i.e. comprising insulating layers having different properties
- H05K3/4691—Rigid-flexible multilayer circuits comprising rigid and flexible layers, e.g. having in the bending regions only flexible layers
-
- 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
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
-
- 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
- H05K1/14—Structural association of two or more printed circuits
- H05K1/142—Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
-
- 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
- H05K2201/01—Dielectrics
- H05K2201/0183—Dielectric layers
- H05K2201/0187—Dielectric layers with regions of different dielectrics in the same layer, e.g. in a printed capacitor for locally changing the dielectric properties
-
- 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
- H05K2201/07—Electric details
- H05K2201/0707—Shielding
- H05K2201/0715—Shielding provided by an outer layer of PCB
-
- 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
- H05K2201/09009—Substrate related
- H05K2201/0909—Preformed cutting or breaking line
-
- 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
- H05K2201/09009—Substrate related
- H05K2201/09127—PCB or component having an integral separable or breakable part
-
- 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
- H05K2201/095—Conductive through-holes or vias
- H05K2201/096—Vertically aligned vias, holes or stacked vias
-
- 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
- H05K3/36—Assembling printed circuits with other printed circuits
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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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4602—Manufacturing multilayer circuits characterized by a special circuit board as base or central core whereon additional circuit layers are built or additional circuit boards are laminated
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49126—Assembling bases
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49128—Assembling formed circuit to base
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49155—Manufacturing circuit on or in base
Definitions
- the present invention relates to a wiring board and a manufacturing method thereof.
- Patent Document 1 An example of a wiring board and a manufacturing method thereof is disclosed in Patent Document 1.
- Patent Document 2 discloses a flex-rigid printed wiring board in which a part of the substrate is rigid and the other part is flexible.
- a high-density conductor region and a low-density conductor region are formed in one substrate, and even if only the high-density conductor region has a defect, normal low density The entire substrate including the conductor region becomes a defective product. Conversely, even if only the low-density conductor region has a defect, the entire substrate including the normal high-density conductor region becomes a defective product. For this reason, the loss (loss) of material is large.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a wiring board having a high manufacturing yield and a manufacturing method thereof. Another object of the present invention is to provide a wiring board having good electrical characteristics and a method for manufacturing the wiring board.
- the wiring board of this invention is A main substrate having a conductor pattern formed on a substrate;
- a flex-rigid printed wiring board comprising at least a hard board and a flexible board connected to each other, disposed on the main board, and having a conductor pattern formed on at least one of the hard board and the flexible board;
- the conductor pattern of the main board and the conductor pattern of the flex-rigid printed wiring board are electrically connected, It is characterized by that.
- the conductor pattern of the flex-rigid printed wiring board is electrically connected to the surface of the conductor pattern formed on the main board, for example.
- at least a part of the flex-rigid printed wiring board is inserted into the main board, and the conductor pattern of the main board and the conductor pattern of the flex-rigid printed wiring board are electrically connected at the insertion position.
- at least a part of the flex-rigid printed wiring board is embedded in the main board, and the conductor pattern of the main board and the conductor pattern of the flex-rigid printed wiring board are electrically connected at the embedding position. Yes.
- the flex-rigid printed wiring board includes, for example, a flexible substrate provided with a conductor pattern, a non-flexible substrate arranged in a horizontal direction of the flexible substrate, and at least the flexible substrate.
- An insulating layer that covers a part and at least a part of the non-flexible base material and exposes at least a part of the flexible base material, and a conductor pattern formed on the insulating layer.
- the conductor pattern of the flexible substrate and the conductor pattern on the insulating layer are connected by plating.
- the flex-rigid printed wiring board includes, for example, a flexible substrate provided with a conductor pattern, a non-flexible substrate arranged in a horizontal direction of the flexible substrate, and at least the flexible substrate.
- An insulating layer that covers a part and at least a part of the non-flexible base material and exposes at least a part of the flexible base material, and a via is formed in the insulating layer, A conductor pattern formed on the insulating layer is formed, and the conductor pattern on the insulating layer is connected to the conductor pattern of the flexible substrate via the via.
- the flex-rigid printed wiring board includes, for example, a flexible base material including a conductive pattern and a protective layer covering the conductive pattern, and a non-flexible base material arranged in a horizontal direction of the flexible base material, An insulating layer covering at least a part of the flexible substrate and at least a part of the non-flexible substrate and exposing at least a part of the flexible substrate; and formed on the insulating layer.
- the number of conductor patterns in the rigid portion of the flex-rigid printed wiring board is larger than the number of conductor patterns in the main board at the same thickness of the rigid portion of the flex-rigid printed wiring board.
- the main substrate has a plurality of conductor patterns stacked via an insulating layer, and vias for connecting the conductor patterns are formed in the insulating layer.
- the flex-rigid printed wiring board has a plurality of conductor patterns. Are laminated via an insulating layer, and vias for connecting the conductor patterns are formed in the insulating layer, the density of the conductor patterns being higher than that of the main substrate, and formed on the flex-rigid printed wiring board. Further, the average value of the number of vias per one insulating layer is larger than the average value of the number of vias per one insulating layer of the main substrate.
- the density of the conductor pattern on the insulating layer of the flex-rigid printed wiring board is higher than the density of the conductor pattern of the flex-rigid printed wiring board on the main board.
- the manufacturing method of the wiring board of this invention is Forming a main substrate having a conductor pattern formed on a substrate; At least a rigid substrate and a flexible substrate are connected to each other, arranged on the main substrate, and a rigid-rigid printed wiring board having a conductor pattern formed on at least one of the rigid substrate and the flexible substrate is formed. And a process of A step of electrically connecting the conductor pattern of the main board and the conductor pattern of the flex-rigid printed wiring board; It is characterized by providing.
- the step of forming the main substrate includes a step of forming a connection pad on the surface of the main substrate
- the step of forming the flex-rigid printed wiring board includes a connection pad on the surface of the flex-rigid printed wiring board.
- the connecting step includes a step of connecting the connection pad of the main substrate and the connection pad of the flex rigid printed circuit board by disposing the flex rigid printed circuit board on the main substrate.
- the step of forming the main substrate includes a step of forming a fitting portion for fitting a flex-rigid printed wiring board on the surface of the main substrate, and forming a connection pad on the fitting portion, and the flex-rigid printing
- the step of forming the wiring board includes the step of forming a connection pad on the surface of the flex-rigid printed wiring board, and the connecting step inserts a part of the flex-rigid printed wiring board into the fitting portion of the main board. And connecting the connection pads of the main board and the connection pads of the flex-rigid printed wiring board.
- the step of forming the main substrate includes a step of forming an embedded portion for embedding a flex-rigid printed wiring board on the surface of the main substrate, and forming a connection pad in the embedded portion, the flex-rigid print
- the step of forming the wiring board includes a step of forming a connection pad on the surface of the flex-rigid printed wiring board, and the connecting step embeds the flex-rigid printed wiring board in the buried portion of the main board, Connecting the connection pads of the main board and the connection pads of the flex-rigid printed wiring board.
- the step of forming the flex-rigid printed wiring board includes a step of arranging and arranging a flexible base material and a non-flexible base material provided with a conductor pattern, at least a part of the flexible base material, and the Covering at least a part of the non-flexible substrate with an insulating layer, exposing at least a part of the flexible substrate, forming a conductor pattern on the insulating layer; And a step of plating and connecting the conductor pattern of the flexible substrate and the conductor pattern on the insulating layer.
- the flex-rigid printed wiring board includes a step of arranging a flexible base including a conductive pattern and a protective layer covering the conductive pattern, and a non-flexible base in a horizontal direction, and the flexible Covering at least a part of the substrate and at least a part of the inflexible substrate and forming an insulating layer so as to expose at least a part of the flexible substrate; and the insulating layer and the A step of forming a via in the protective layer; and a step of connecting the conductor pattern of the flexible base material and the conductor pattern on the insulating layer through the via.
- the number of conductor patterns in the rigid portion of the flex-rigid printed wiring board is larger than the number of conductor patterns on the main board in the region of the same thickness and size of the rigid portion of the flex-rigid printed wiring board.
- the main substrate has a plurality of conductor patterns stacked via an insulating layer, and vias for connecting the conductor patterns are formed in the insulating layer.
- the flex-rigid printed wiring board has a plurality of conductor patterns. Are laminated via an insulating layer, and vias for connecting the conductor patterns are formed in the insulating layer, the density of the conductor patterns being higher than that of the main substrate, and formed on the flex-rigid printed wiring board. Further, the average value of the number of vias per one insulating layer is larger than the average value of the number of vias per one insulating layer of the main substrate.
- the density of the conductor pattern on the insulating layer of the flex-rigid printed wiring board is higher than the density of the conductor pattern of the flex-rigid printed wiring board on the main board.
- the main board and the flex-rigid printed wiring board can be manufactured separately, and they can be manufactured in combination, and the manufacturing yield can be maintained at a high value.
- FIG. 1 It is sectional drawing which shows the structure of the multilayer wiring board which concerns on embodiment of this invention. It is a figure which shows the structure of the principal part of the multilayer wiring board shown in FIG. 1, and is sectional drawing of a main board
- substrate It is a perspective view for demonstrating the modification of the connection method of a flex-rigid printed wiring board and a main board
- the multilayer wiring board 1 has a configuration shown in cross section in FIG. 1 and includes rigid body portions 2 and 3 and a flexible portion 4 and functions as a flex-rigid printed wiring board as a whole.
- the multilayer wiring board 1 is configured by combining a main board 21 shown in FIG. 2A and a flex-rigid printed wiring board 31 shown in FIG. 2B.
- the main board 21 includes a core base material 211 and circuit patterns (conductor patterns) 212 and 213 formed on both surfaces of the core base material 211.
- the core base material 211 is made of, for example, a non-flexible insulating material such as a glass epoxy resin containing an inorganic substance such as a glass cloth or a glass filler, and has an opening 2111 for inserting the flex-rigid printed wiring board 31. Yes.
- the circuit patterns 212 and 213 are composed of a circuit pattern of a conductor such as copper.
- the flex-rigid printed wiring board 31 includes a flexible base material 311 and a hard (non-flexible) base material 312 arranged in the horizontal direction of the flexible base material 311, and is formed on the main substrate 21. It is inserted into the opening 2111.
- the flexible substrate 311 is made of an insulating flexible sheet, for example, a polyimide sheet having a thickness of about 20 to 50 ⁇ m.
- the hard base material 312 is formed to have substantially the same thickness as the flexible base material 311 and is made of, for example, a non-flexible insulating material such as glass epoxy resin containing an inorganic substance such as glass cloth or glass filler.
- Insulating layers 313 and 314 are arranged so as to sandwich the flexible base material 311 and the hard base material 312.
- the insulating layers 313 and 314 cover part of the flexible base material 311 and the hard base material 312 and expose the other part of the flexible base material 311.
- the insulating layers 315 and 316 are disposed so as to be stacked on the insulating layers 313 and 314.
- the insulating layers 313 to 316 are formed by curing a prepreg and have a thickness of about 50 to 100 ⁇ m, for example.
- Conductive patterns 321 and 322 made of copper or the like are formed on both surfaces of the flexible base 311 to form a flexible substrate (flexible substrate) 13.
- Conductor patterns 324 made of a conductor such as copper are formed on both surfaces of the hard base material 312.
- the conductive patterns 324 formed on both surfaces of the hard base material 312 are connected to each other by through holes 325 plated inside.
- a conductive pattern 326 is formed on each of the insulating layers 313 to 316.
- the conductor patterns 324 and 326 in different layers are connected to each other through a filled via 327.
- the insulating layer, the conductor (circuit) pattern, and the via (via hole) laminated on the hard base material 312 constitute a rigid rigid substrate 11 having a multilayer conductor pattern.
- the conductor pattern 326 formed on the insulating layers 313 and 314 is connected to the end portions of the conductor patterns 321 and 322 constituting the flexible substrate 13 through the filled via 328.
- Insulating layers 331 to 334 are laminated on the end portion of the flexible base material 311 to form the connection portion 15.
- Filled vias 335 and 336 (build-up filled vias) connected to the conductor patterns 321 and 322 are formed in the insulating layers 331 and 332, and connection pads 337 and 338 are formed in the outermost layers.
- the main board 21 and the flex-rigid printed wiring board 31 are arranged adjacent to each other and are sandwiched between insulating layers 41 and 42.
- Conductive patterns 43 and 44 are formed in the insulating layers 41 and 42, and are connected to the inner conductive pattern via the vias 45 and 46 as necessary.
- circuit patterns 212 and 213 of the main board 21 and the connection pads 337 and 338 of the connection portion 15 of the flex-rigid printed wiring board 31 are connected to each other through conductor patterns 47 and 48.
- the circuit patterns 212 and 213 of the main board 21 are connected to each other through, for example, a copper-plated through hole 49. Thereby, the conductor pattern of the main board 21 and the conductor pattern of the flex-rigid printed wiring board 31 are electrically connected.
- the wiring density of the flex-rigid printed wiring board 31 (number of conductor pattern layers, via density, etc.) is higher than the wiring density of the main board 21.
- the number of wiring layers on which the conductor pattern is formed in the flex-rigid printed wiring board 31 is 6, and the main board 21 has the same thickness as the flex-rigid printed wiring board 31. More than two wiring layers are formed in the thickness region.
- the density of the conductor (circuit) patterns 324 to 328 on the insulating layers 313 to 316 in the flex-rigid printed wiring board 31 is on the insulating layer (core base material 211) of the main substrate 21. It is higher than the density of the circuit patterns 212 and 213.
- the average number of vias per insulating layer formed on the flex-rigid printed wiring board 31 is the average number of vias per insulating layer (core substrate 211) of the main substrate 21. More than the value (0).
- the flex-rigid printed wiring board 31 has a higher wiring density than the main board 21. In this case, defects are more likely to occur in the flex-rigid printed wiring board 31 than in the main board 21 in the manufacturing stage.
- the normal multilayer wiring board 1 can be manufactured using another normal flex-rigid printed wiring board 31. Therefore, the yield can be increased as compared with the conventional case.
- the rigidity of the main board 21 is higher than the rigidity of the rigid body (the rigid board 11 and the connecting portion 15) of the flex-rigid printed wiring board 31. Therefore, the densified flex-rigid printed wiring board 31 is protected by the main board 21.
- the multilayer wiring board 1 is formed by separately manufacturing the main board 21 and the flex-rigid printed wiring board 31, and connecting and integrating them.
- a core base material 211 having copper foils 221 and 222 on both sides for example, a copper foil sheet with resin (Resin Cupper Film; RCF) is prepared. It is desirable that the core base material 211 has a size capable of manufacturing a plurality of main substrates 21.
- the copper foils 221 and 222 are patterned to form a conductor pattern as shown in FIG. 4B.
- an opening 2111 is formed by punching, laser cutting, etc., and the main substrate 21 is formed.
- a hard base material 312 having a size capable of manufacturing a plurality of flex-rigid printed wiring boards 31 is prepared.
- a rectangular opening 401 for arranging the flexible substrate 311 and an opening 402 for forming a through hole 325 are formed in the hard substrate 312.
- a conductor pattern 324 and a through hole 325 are formed by copper plating and patterning.
- the flexible substrate 13 in which the conductor patterns 321 and 322 are formed on both surfaces of the flexible base material 311 is disposed in the opening 401 as shown in FIG. 5D.
- the flexible base material 311 and the hard base material 312 are coated with the prepregs 403 and 404, pressed as shown in FIG. 5F, and further included in the prepregs 403 and 404.
- the resin is cured.
- via holes 405 are formed in the cured prepregs 403 and 404 as shown in FIG. Subsequently, the whole is plated and patterned to form conductor patterns 326 and filled vias 327 and 335 as shown in FIG. 5H.
- the upper prepregs 406 and 407 are arranged, the same processing as described above is performed, the flexible substrate 13 and the hard base material 312 are covered, and the upper conductor pattern 326 and Connection pads 337 and 338 are formed to form a structure 371.
- a plurality of structures 371 are formed on one hard base material 312 plate.
- each structure 371 is cut out. Subsequently, each main substrate 21 and the structure 371 are inspected, normal ones are selected, and a normal structure is formed in the opening 2111 adjacent to the normal main substrate 21 as shown in FIGS. 3D and 6A. A body 371 is arranged.
- the prepregs 411 and 412 are disposed on the upper and lower surfaces of the plurality of sets of the main substrate 21 and the structure body 371, pressed, and the resin is cured.
- vias 413 are appropriately formed in the cured prepregs 411 and 412 as shown in FIG. Further, the through hole 414 is formed by a drill or the like.
- a portion of the cured prepreg 411, 412 that exposes the flexible substrate 13 is irradiated with a laser L, and the prepregs 403, 404, 406, 407, 411, 412, as shown in FIG. 6F. Cut. Subsequently, as shown in FIG. 6F, the cut portion is removed.
- the main board 21 and the flex-rigid printed wiring board 31 are manufactured separately at least partway, and normal products are combined with each other to produce multilayer wiring.
- a board can be manufactured. For this reason, even if a defect occurs in the main board 21 or the flex-rigid printed wiring board 31, the entire multilayer wiring board 1 is not regarded as a defective product, and the final product can be manufactured with the defective product as a normal product. For this reason, the manufacturing yield increases as compared with the case where the whole is manufactured at once, and the loss of materials and energy can be reduced.
- the rigidity of the core base material 211 of the main substrate 21 is higher than the rigidity of the insulating layer of the flex-rigid printed wiring board, the stress applied to the flex-rigid printed wiring board 31 can be suppressed.
- the flex-rigid printed wiring board 31 Since the wiring density of the flex-rigid printed wiring board 31 is higher than the wiring density of the main board, the flex-rigid printed wiring board 31 can be partially fine pitched.
- the main board 21 has no unnecessary conductor connection portion, the drop impact resistance is improved.
- the main board 21 and the flex-rigid printed wiring board 31 are arranged side by side, but the arrangement of the main board 21 and the flex-rigid printed wiring board 31 is arbitrary.
- a flex-rigid printed wiring board 31 may be disposed on the surface of the main board 21.
- the connection pads 501 formed on the surface (lower surface) of the rigid substrate 11 of the flex-rigid printed wiring board 31 may be fixed to the connection pads 502 arranged on the surface of the main substrate 21 with solder or the like. .
- an arrangement portion (accommodating portion) 511 for accommodating a part of the rigid substrate 11 of the flex-rigid printed wiring board 31 is formed on the main substrate 21.
- a part of the rigid substrate 11 of the rigid printed wiring board 31 may be disposed.
- the connection pad 513 formed on the rigid board 11 of the flex-rigid printed wiring board 31 may be fixed to the connection pad 512 formed in the housing portion 511 of the main board 21 by soldering or the like.
- the rigid substrate 11 of the flex-rigid printed wiring board 31 may be embedded (inserted / inserted) in the main substrate 21.
- the connection pads 523 formed on the rigid substrate 11 of the flex-rigid printed wiring board 31 are fixed to the connection pads 522 formed on the recessed portion (accommodating portion) 521 of the main substrate 21 with solder or the like. Also good.
- the flexible substrate 13 has a structure in which a base material 131, conductor layers 132 and 133, insulating layers 134 and 135, shield layers 136 and 137, and coverlays 138 and 139 are laminated.
- the substrate 131 is made of an insulating flexible sheet, for example, a polyimide sheet having a thickness of 20 to 50 ⁇ m, preferably about 30 ⁇ m.
- the conductor layers 132 and 133 are formed on the front surface and the back surface of the base material 131, respectively, and constitute a striped conductor pattern.
- the insulating layers 134 and 135 are made of a polyimide film having a thickness of about 5 to 15 ⁇ m, and insulate the conductor layers 132 and 133 from the outside.
- the shield layers 136 and 137 are composed of a conductive layer, for example, a hardened film of silver paste, and shield electromagnetic noise from the outside to the conductor layers 132 and 133 and electromagnetic noise from the conductor layers 132 and 133 to the outside.
- the coverlays 138 and 139 are formed of an insulating film such as polyimide having a thickness of about 5 to 15 ⁇ m, and insulate and protect the entire flexible substrate 13 from the outside.
- the rigid substrate 11 is formed by laminating a first insulating layer 111, a non-flexible base material 112, a second insulating layer 113, and first and second upper insulating layers 114 and 115. It is configured.
- the non-flexible base material 112 gives rigidity to the rigid substrate 11 and is made of a non-flexible insulating material such as glass epoxy resin.
- the non-flexible base material 112 is spaced apart from the flexible substrate 13 in the horizontal direction.
- the non-flexible base material 112 is configured to have almost the same thickness as the flexible substrate 13, for example, 50 to 150 ⁇ m, preferably about 100 ⁇ m.
- the first and second insulating layers 111 and 113 are formed by curing a prepreg.
- the first and second insulating layers 111 and 113 each have a thickness of about 50 to 100 ⁇ m, preferably about 50 ⁇ m.
- the first and second insulating layers 111 and 113 cover the non-flexible base material 112 and the flexible substrate 13 from both the front and back surfaces, and expose a part of the flexible substrate 13. Further, the first and second insulating layers 111 and 113 are superposed on the coverlays 138 and 139 on the surface of the flexible substrate 13.
- the non-flexible base material 112 and the first and second insulating layers 111 and 113 constitute the core of the rigid substrate 11, support the rigid substrate 11, and sandwich and support and fix one end of the flexible substrate 13. .
- the gap formed by the non-flexible base material 112, the flexible substrate 13, and the first and second insulating layers 111 and 113 is filled with a resin 125.
- the resin 125 oozes out from the low-flow prepreg constituting the first and second insulating layers 111 and 113 at the time of manufacture, and is cured integrally with the first and second insulating layers 111 and 113. ing.
- a via (via hole, contact hole) 116 is formed in a portion of the second insulating layer 113 facing the connection pad 13b of the wiring (conductor layer 133) of the flexible substrate 13.
- the shield layer 137 and the coverlay 139 of the flexible substrate 13 are removed from a portion of the flexible substrate 13 that faces the via 116 (portion where the connection pad 13b is formed).
- the via 116 penetrates the insulating layer 135 of the flexible substrate 13 and exposes the connection pad 13 b of the conductor layer 133.
- a conductor pattern (conductor layer) 117 formed by copper plating or the like is formed on the inner surface of the via 116.
- the conductor pattern 117 is connected to the connection pad 13 b of the conductor layer 133 of the flexible substrate 13 by plating.
- the via 116 is filled with resin.
- the lead pattern 118 is composed of a copper plating layer or the like.
- a copper pattern 124 insulated from the other is disposed at the tip of the second insulating layer 113, that is, at a position beyond the boundary between the flexible base material (flexible substrate 13) and the non-flexible base material 112. ing. For this reason, the heat generated in the rigid substrate 11 can be effectively dissipated.
- the first upper insulating layer 114 is stacked on the second insulating layer 113.
- the first upper insulating layer 114 is configured by curing a material containing an inorganic material, for example, a prepreg in which a glass cloth or the like is impregnated with resin. With such a configuration, the impact resistance against dropping can be improved.
- the via 116 is filled with the resin from the prepreg.
- a second upper insulating layer 115 is disposed on the first upper insulating layer 114.
- the second upper insulating layer 115 is also configured by curing a prepreg in which a glass cloth or the like is impregnated with a resin.
- a via (first upper layer via) 119 connected to the lead pattern 118 is formed in the first upper insulating layer 114 disposed on the second insulating layer 113.
- the via 119 is filled with a conductor 120 such as copper.
- a via (second upper layer via) 121 connected to the via 119 is formed in the second upper insulating layer 115 stacked on the first upper insulating layer 114.
- the via 121 is filled with a conductor 122 such as copper. That is, a filled buildup via is formed by the vias 119 and 121.
- a conductor pattern (circuit pattern) 123 is appropriately formed on the second upper insulating layer 115.
- the via 119 is also connected to these conductor patterns 123 as appropriate.
- connection portion between the connection portion 15 and the flexible substrate 13 may be the configuration shown in FIG.
- the end portion of the flexible substrate 13 is sandwiched between the first and second insulating layers 111 and 113 constituting the core portion of the rigid substrate 11, and polymerization is performed. is doing.
- connection pads 13 b of the conductor layer 133 of the flexible substrate 13 and the rigid substrate 11 are connected via the conductor pattern (copper plating layer) 117 formed in the via 116 formed in the second insulating layer 113 and the insulating layer 135.
- the conductor pattern 123 is connected.
- connection part is high.
- the inside of the via 116 is filled with the resin of the first upper insulating layer 114. Since the via 116 is fixed and supported by the resin in the via 116, the connection reliability between the via 116 and the conductor layer 133 is improved.
- the end surfaces of the insulating layers 113 and 111 facing the flexible substrate protrude from the end surfaces of the first upper insulating layer 114 facing the flexible substrate. For this reason, when the flexible substrate 13 is bent, the stress applied to the flexible substrate 13 is not transmitted to the connecting portion (via 116, conductor pattern 117) of the rigid substrate 11. For this reason, there is little stress to the connection part of the rigid board
- the conductor pattern is formed only on the upper surface of the rigid substrate 11 for easy understanding.
- the present invention is not limited to this example.
- a conductor pattern may be arranged on the lower side of the rigid substrate 11.
- vias 141 are formed in the first insulating layer 111 and the insulating layer 134 of the flexible substrate 13.
- a conductor pattern 142 is formed in the via 141 and connected to a lead pattern 143 formed on the first insulating layer 111.
- the conductor pattern 142 and the lead pattern 143 are formed by patterning a copper plating layer.
- third and fourth upper insulating layers 144 and 145 are stacked. Vias 146 and 147 are formed in the third and fourth upper insulating layers 144 and 145, respectively. Vias 146, 147 are filled with conductors 148, 149. A conductor pattern 150 is formed on the fourth upper insulating layer 145.
- the number of wiring layers on which the conductor pattern is formed in the flex-rigid printed wiring board 31 is formed more than the number of wiring layers in the same region as the thickness of the flex-rigid board of the main board 21.
- An example in which the main substrate has two layers and the flex-rigid printed wiring board 31 has six layers is shown.
- the present invention is not limited to this example.
- the number of wiring layers of the flex-rigid printed wiring board 31 and the main board 21 is arbitrary.
- the number of wiring layers of the flex-rigid printed wiring board 31 may be six, and the number of wiring layers of the main board 21 may be four.
- the number of wiring layers on which the conductor pattern is formed in the flex-rigid printed wiring board 31 is greater than the number of wiring layers in the region having the same thickness as the thickness of the flex-rigid printed wiring board 31 of the main board 21.
- An example in which the conductive pattern in the flex-rigid printed wiring board 31 is present on the insulating layer is higher than the density in the conductive pattern on the insulating layer of the main substrate 21.
- the present invention is not limited to this, and as illustrated in FIGS. 12A and 12B, the average value of the number of vias per insulating layer formed on the flex-rigid printed wiring board 31 is the insulating layer of the main substrate 21. You may comprise so that there may be more than the average value of the number of via
- an opening 2111 is formed so as to bite into a part of the main substrate 21, and as shown in FIG. 3D, the main substrate 21 and a part of the structure 371 are formed.
- the present invention is not limited to this.
- the main substrate 21 and the structure 371 may be arranged so that the connection portion of the structure 371 does not bite into the main substrate 21.
- positioning in this way is fundamentally the same as the above-mentioned embodiment.
- adjacent main substrates 21 are arranged in opposite directions, and the openings 2111 are staggered.
- the main substrate 21 and the structure 371 are combined with high density.
- the present invention is not limited to this.
- a plurality of main substrates 21, a plurality of openings 2111, and a plurality of structures 371 may be regularly arranged in the same direction.
- connection pad 541 is arranged on the main board 21, and as shown in FIG. 16, the connection portion 15 of the flex-rigid printed wiring board 31 is overlaid on the connection pad 541, as shown in FIG.
- connection pad 541 and the connection pad 338 on the connection unit 15 may be connected.
- the process of manufacturing the multilayer wiring board 1 is not limited to the above embodiment, and can be changed.
- unnecessary portions of the prepregs 403, 404, 406, and 407 are cut by irradiating the laser L as shown in FIG. 18A, for example.
- the flex-rigid printed wiring board 31 may be separated from the surroundings, and then unnecessary portions of the prepreg may be removed to complete the flex-rigid printed wiring board 31 shown in FIG. 2B.
- the flex-rigid printed wiring board 31 is disposed in the opening 2111 adjacent to the normal main substrate 21. Subsequently, as shown in FIG. 18B, it is desirable to place separators 409 and 410 on the upper and lower surfaces of the flexible substrate 13 of the flex-rigid printed wiring board 31. Subsequently, as shown in FIG. 18B, the prepregs 411 and 412 are disposed on the upper and lower surfaces of the plurality of sets of the main substrate 21 and the structure body 371, pressed, and the resin is cured.
- vias 413 are appropriately formed in the cured prepregs 411 and 412 as shown in FIG. Further, the through hole 414 is formed by a drill or the like.
- portions corresponding to the edges of the separators 409 and 410 of the cured prepregs 411 and 412 are irradiated with a laser L, and the prepregs 411 and 412 are cut as shown in FIG. 18F. Subsequently, the cut portions of the prepregs 406 and 407 and the separators 409 and 410 are removed.
- connection portion 15 is arranged on the flex-rigid printed wiring board 31, but the connection portion 15 is not arranged, and the conductors (conductor patterns 321 and 322) on the flexible substrate 13 are directly connected to other circuits. Also good.
- the present invention is applicable to a wiring board such as an electronic device.
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Abstract
Description
基材上に導体パターンが形成された主基板と、
少なくとも硬質基板と可撓性基板とが接続されて構成され、前記主基板に配置され、硬質基板もしくは可撓性基板の少なくともいずれか一方には導体パターンが形成されているフレックスリジッドプリント配線板と、
から構成され、前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは電気的に接続されている、
ことを特徴とする。
例えば、前記フレックスリジッドプリント配線板の少なくとも一部は前記主基板に挿入されており、前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは、挿入位置で電気的に接続されている。
例えば、前記フレックスリジッドプリント配線板の少なくとも一部は前記主基板に埋設されており、前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは、埋設位置で電気的に接続されている。
基材上に導体パターンが形成された主基板を形成する工程と、
少なくとも硬質基板と可撓性基板とが連結され構成され、前記主基板に配置され、硬質基板もしくは可撓性基板の少なくともいずれか一方には導体パターンが形成されているフレックスリジッドプリント配線板を形成する工程と、
前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは電気的に接続する工程と、
を備えることを特徴とする。
2、3 剛体部
4 フレキシブル部
11 リジッド基板
13 フレキシブル基板
13b、337、338、501、502、512、513、522、523、541 接続パッド
15 接続部
21 主基板
31 フレックスリジッドプリント配線板
41、42、313~316、331、332 絶縁層
43、44、47、48、123、142、150、321、322、324、326 導体パターン
45、46、116、119、121、141、146、147、413 ビア
49、325、414 スルーホール
111 第1の絶縁層
112 非可撓性基材
113 第2の絶縁層
114 第1の上層絶縁層
115 第2の上層絶縁層
117 導体パターン(配線層パターン)
118、143 引き出しパターン
120、122、148、149 導体
124 銅パターン
125 樹脂
131 基材
132、133 導体層
134、135 絶縁層
136、137 シールド層
138、139 カバーレイ
144 第3の上層絶縁層
145 第4の上層絶縁層
211 コア基材(絶縁層)
212、213 回路パターン(導体パターン)
221、222 銅箔
311 可撓性基材
312 硬質基材
327、328、335、336 フィルドビア
371 構造体
401、402、2111 開口
403、404、406、407、411、412 プリプレグ
405 ビアホール
409、410 セパレータ
511 配置部(収容部)
521 くぼみ部(収容部)
続いて、各主基板21と構造体371とをそれぞれ検査し、正常なもの同士を選択して、図3D、図6Aに示すように、正常な主基板21に隣接する開口2111に正常な構造体371を配置する。
Claims (20)
- 基材上に導体パターンが形成された主基板と、
少なくとも硬質基板と可撓性基板とが接続されて構成され、前記主基板に配置され、硬質基板もしくは可撓性基板の少なくともいずれか一方には導体パターンが形成されているフレックスリジッドプリント配線板と、
から構成され、前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは電気的に接続されている、
ことを特徴とする配線板。 - 前記フレックスリジッドプリント配線板の導体パターンが、前記主基板に形成された導体パターンの表面に電気的に接続されている、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板の少なくとも一部は前記主基板に挿入されており、
前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは、挿入位置で電気的に接続されている、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板の少なくとも一部は前記主基板に埋設されており、前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとは、埋設位置で電気的に接続されている、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板は、
導体パターンを備える可撓性基材と、
前記可撓性基材の水平方向に配置された非可撓性基材と、
前記可撓性基材の少なくとも一部と前記非可撓性基材の少なくとも一部とを被覆し、前記可撓性基材の少なくとも一部を露出する絶縁層と、
前記絶縁層上に形成された導体パターンと、
を備え、
前記可撓性基材の導体パターンと前記絶縁層上の導体パターンとはメッキ接続されている、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板は、
導体パターンを備える可撓性基材と、
前記可撓性基材の水平方向に配置された非可撓性基材と、
前記可撓性基材の少なくとも一部と非可撓性基材の少なくとも一部とを被覆し、前記可撓性基材の少なくとも一部を露出する絶縁層と、
を備え、
前記絶縁層にはビアが形成されており、
前記絶縁層上に形成された導体パターンが形成されており、
前記絶縁層上の導体パターンは、前記ビアを介して前記可撓性基材の導体パターンに接続されている、
ことを特徴とする、請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板は、
導体パターンと該導体パターンを覆う保護層を備える可撓性基材と、
前記可撓性基材の水平方向に配置された非可撓性基材と、
前記可撓性基材の少なくとも一部と非可撓性基材の少なくとも一部とを被覆し、前記可撓性基材の少なくとも一部を露出する絶縁層と、
前記絶縁層上に形成された導体パターンと、
を備え、
前記可撓性基材の導体パターンと絶縁層上の導体パターンは、前記絶縁層と前記保護層とに形成されたビアを介して前記可撓性基材の導体パターンに接続されている、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板における導体パターンは、前記フレックスリジッドプリント配線板と同一の厚さにおける主基板の導体パターンの層数よりも多い、
ことを特徴とする請求項1に記載の配線板。 - 前記主基板は、複数の導体パターンが絶縁層を介して積層され、前記絶縁層に、導体パターン同士を接続するためのビアが形成され、
前記フレックスリジッドプリント配線板は、複数の導体パターンが絶縁層を介して積層され、前記絶縁層に、導体パターン同士を接続するためのビアが形成され、該主基板よりも、導体パターンの存在密度が高く、
該フレックスリジッドプリント配線板に形成された前記絶縁層1層数当たりのビアの個数の平均値が、前記主基板の前記絶縁層1層数当たりのビアの個数の平均値よりも大きい、
ことを特徴とする請求項1に記載の配線板。 - 前記フレックスリジッドプリント配線板における導体パターンの絶縁層上の存在密度は、前記主基板の前記フレックスリジッドプリント配線板の導体パターンの絶縁層上の存在密度よりも高い、
ことを特徴とする請求項1に記載の配線板。 - 基材上に導体パターンが形成された主基板を形成する工程と、
少なくとも硬質基板と可撓性基板とが連結され構成され、前記主基板に配置され、硬質基板もしくは可撓性基板の少なくともいずれか一方には導体パターンが形成されているフレックスリジッドプリント配線板を形成する工程と、
前記主基板の導体パターンと前記フレックスリジッドプリント配線板の導体パターンとを電気的に接続する工程と、
を備える、
ことを特徴とする配線板の製造方法。 - 前記主基板を形成する工程は、主基板の表面に接続用パッドを形成する工程を含み、前記フレックスリジッドプリント配線板を形成する工程は、フレックスリジッドプリント配線板の表面に接続用パッドを形成する工程を含み、
前記接続する工程は、前記主基板上に前記フレックスリジッドプリント配線板を配置することにより、前記主基板の接続パッドと前記フレックスリジッドプリント配線板の接続パッドとを接続する工程とを含む、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記主基板を形成する工程は、主基板の表面にフレックスリジッドプリント配線板を嵌入するための嵌入部を形成し、該嵌入部に接続用パッドを形成する工程を含み、
前記フレックスリジッドプリント配線板を形成する工程は、フレックスリジッドプリント配線板の表面に接続用パッドを形成する工程を含み、
前記接続する工程は、前記主基板の嵌入部に前記フレックスリジッドプリント配線板の一部を嵌入し、前記主基板の接続パッドと前記フレックスリジッドプリント配線板の接続パッドとを接続する工程とを含む、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記主基板を形成する工程は、主基板の表面にフレックスリジッドプリント配線板を埋設するための埋設部を形成し、該埋設部内に接続用パッドを形成する工程を含み、
前記フレックスリジッドプリント配線板を形成する工程は、フレックスリジッドプリント配線板の表面に接続用パッドを形成する工程を含み、
前記接続する工程は、前記主基板の埋設部に前記フレックスリジッドプリント配線板を埋設し、前記主基板の接続パッドと前記フレックスリジッドプリント配線板の接続パッドとを接続する工程とを含む、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記フレックスリジッドプリント配線板を形成する工程は、
導体パターンを備える可撓性基材と非可撓性基材とを並べて配置する工程と、
前記可撓性基材の少なくとも一部と前記非可撓性基材の少なくとも一部とを絶縁層で被覆し、前記可撓性基材の少なくとも一部を露出する被覆工程と、
前記絶縁層上に導体パターンを形成する工程と、
前記可撓性基材の導体パターンと、前記絶縁層上の導体パターンとをメッキ接続する工程と、
を備える、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 導体パターンを備える可撓性基材と、非可撓性基材とを水平方向に並べて配置する工程と、
前記可撓性基材の少なくとも一部と非可撓性基材の少なくとも一部とを被覆し、前記可撓性基材の少なくとも一部を露出するように絶縁層を配置する工程と、
前記絶縁層にビアを形成する工程と、
前記ビアを介して前記絶縁層上の導体パターンと前記可撓性基材の導体パターンとを接続する工程と、
を備える、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 導体パターンと該導体パターンを覆う保護層を備える可撓性基材と、非可撓性基材とを水平方向に並べて配置する工程と、
前記可撓性基材の少なくとも一部と非可撓性基材の少なくとも一部とを被覆し、前記可撓性基材の少なくとも一部を露出するように絶縁層を形成する工程と、
前記絶縁層と前記保護層とにビアを形成する工程と、
前記可撓性基材の導体パターンと絶縁層上の導体パターンとを、前記ビアを介して接続する工程と、
を備える、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記フレックスリジッドプリント配線板における導体パターンは、前記フレックスリジッドプリント配線板と同一の厚さとサイズの領域における主基板の導体パターンの層数よりも多い、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記主基板は、複数の導体パターンが絶縁層を介して積層され、前記絶縁層に、導体パターン同士を接続するためのビアが形成され、
前記フレックスリジッドプリント配線板は、複数の導体パターンが絶縁層を介して積層され、前記絶縁層に、導体パターン同士を接続するためのビアが形成され、該主基板よりも、導体パターンの存在密度が高く、
該フレックスリジッドプリント配線板に形成された前記絶縁層1層数当たりのビアの個数の平均値が、前記主基板の前記絶縁層1層数当たりのビアの個数の平均値よりも大きい、
ことを特徴とする請求項11に記載の配線板の製造方法。 - 前記フレックスリジッドプリント配線板における導体パターンの絶縁層上の存在密度は、前記主基板の前記フレックスリジッドプリント配線板の導体回路の絶縁層上の存在密度よりも高い、
ことを特徴とする請求項11に記載の配線板の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801292989A CN102037795A (zh) | 2008-05-19 | 2008-12-22 | 电路板及其制造方法 |
JP2010512907A JPWO2009141929A1 (ja) | 2008-05-19 | 2008-12-22 | 配線板とその製造方法 |
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US7178908P | 2008-05-19 | 2008-05-19 | |
US61/071,789 | 2008-05-19 |
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PCT/JP2008/073345 WO2009141929A1 (ja) | 2008-05-19 | 2008-12-22 | 配線板とその製造方法 |
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US (2) | US8536457B2 (ja) |
JP (2) | JPWO2009141929A1 (ja) |
KR (1) | KR101208379B1 (ja) |
CN (1) | CN102037795A (ja) |
TW (1) | TW200950612A (ja) |
WO (1) | WO2009141929A1 (ja) |
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JP2012079866A (ja) * | 2010-09-30 | 2012-04-19 | Kinko Denshi Kofun Yugenkoshi | フレックスリジッド回路板とその製造方法 |
JP2016048722A (ja) * | 2014-08-27 | 2016-04-07 | イビデン株式会社 | フレックスリジッド配線板及び半導体モジュール |
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- 2008-12-22 KR KR1020107017158A patent/KR101208379B1/ko not_active IP Right Cessation
- 2008-12-22 WO PCT/JP2008/073345 patent/WO2009141929A1/ja active Application Filing
- 2008-12-29 TW TW097151253A patent/TW200950612A/zh unknown
-
2009
- 2009-05-18 US US12/453,627 patent/US8536457B2/en active Active - Reinstated
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2011
- 2011-09-23 US US13/242,043 patent/US8354596B2/en not_active Expired - Fee Related
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2012
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---|---|---|---|---|
WO2011102561A1 (ja) * | 2010-02-22 | 2011-08-25 | 三洋電機株式会社 | 多層プリント配線基板およびその製造方法 |
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JP2016048722A (ja) * | 2014-08-27 | 2016-04-07 | イビデン株式会社 | フレックスリジッド配線板及び半導体モジュール |
Also Published As
Publication number | Publication date |
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JP5272090B2 (ja) | 2013-08-28 |
KR101208379B1 (ko) | 2012-12-05 |
US8536457B2 (en) | 2013-09-17 |
JP2012114482A (ja) | 2012-06-14 |
US8354596B2 (en) | 2013-01-15 |
KR20100096274A (ko) | 2010-09-01 |
US20120012368A1 (en) | 2012-01-19 |
TW200950612A (en) | 2009-12-01 |
JPWO2009141929A1 (ja) | 2011-09-29 |
US20090283301A1 (en) | 2009-11-19 |
CN102037795A (zh) | 2011-04-27 |
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