WO2012032654A1 - 部品内蔵基板 - Google Patents
部品内蔵基板 Download PDFInfo
- Publication number
- WO2012032654A1 WO2012032654A1 PCT/JP2010/065626 JP2010065626W WO2012032654A1 WO 2012032654 A1 WO2012032654 A1 WO 2012032654A1 JP 2010065626 W JP2010065626 W JP 2010065626W WO 2012032654 A1 WO2012032654 A1 WO 2012032654A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- component
- pad
- conductive
- insulating base
- components
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
-
- 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
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
-
- 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
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
- H05K1/185—Components encapsulated in the insulating substrate of the printed circuit or incorporated in internal layers of a multilayer circuit
- H05K1/188—Components encapsulated in the insulating substrate of the printed circuit or incorporated in internal layers of a multilayer circuit manufactured by mounting on or attaching to a structure having a conductive layer, e.g. a metal foil, such that the terminals of the component are connected to or adjacent to the conductive layer before embedding, and by using the conductive layer, which is patterned after embedding, at least partially for connecting the component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/03—Metal processing
- H05K2203/0338—Transferring metal or conductive material other than a circuit pattern, e.g. bump, solder, printed component
Definitions
- the present invention relates to a component built-in substrate in which an electrical component or an electronic component is embedded in an insulating base material.
- a component-embedded substrate is disclosed in Patent Document 1.
- the component-embedded substrate described in Patent Document 1 includes an insulating base, a conductor circuit formed on both sides, and an electronic component.
- This electronic component is a built-in component that is embedded in an insulating base material and has a terminal portion connected to a connection terminal portion provided on the substrate side and connected to a conductor circuit.
- Patent Document 1 describes an example in which a connection terminal portion for connecting to a connection terminal of the component-embedded substrate is formed using a solder resist layer.
- the solder resist layer is formed by exposure, development, ultraviolet curing or thermal curing after screen printing. For this reason, if a solder resist layer is formed between adjacent built-in components, it is difficult to reduce the interval between the built-in components. That is, it is difficult to increase the density of components with respect to the substrate surface. Further, when the substrate is manufactured by the transfer method as in Patent Document 1, it is difficult to increase the density of the wiring because the conductor pattern is designed larger than the connection portion with the electronic component.
- the present invention takes the above-described conventional technology into consideration, and can be arranged with a small interval between built-in components. Therefore, it is possible to increase the density of components (improving the mounting density of components) and to further improve the wiring.
- An object of the present invention is to provide a component-embedded substrate capable of increasing the density.
- a resin-made insulating base material formed in a plate shape, a plurality of electronic or electrical components embedded in the insulating base material, and the parts include a bonding material.
- a plate-like conductive pad that is mounted on one surface, the one surface and the peripheral side surface are covered with the insulating base, and the other surface of the conductive pad is within the outer edge of the other surface.
- the component-embedded substrate is provided with a conductor pattern formed on the substrate.
- the conductor pattern is formed by exposing a part of the other surface.
- the component is provided with a plurality of connection terminals, and the conductive pads are electrically connected to the connection terminals via the bonding material, and the respective conductive elements connected to the connection terminals are connected.
- a pad unit is formed by a pad, and only the insulating base material is interposed between adjacent pad units.
- the connection terminals are provided at both end portions of the component, and the pad unit is arranged so that the conductive pads face each other as a pad pair.
- a spacer is provided between the conductive pads forming the pad pair to maintain a distance between the component and the surface of the insulating base.
- the bonding material is solder
- the spacer is a solder resist.
- the component-embedded substrate of the present invention includes an insulating base, a plurality of components, a conductive pad, and a conductive pattern, and the conductive pattern is within the outer edge of the pattern forming surface that is the other surface of the conductive pad, that is, equivalent to the outer edge. Alternatively, it is formed in a range smaller than the outer edge. Therefore, the conductor pattern is not formed beyond the outer edge of the conductive pad, and the interval between the components is determined by the size of the conductive pad. Thereby, since the space
- a pad pair is formed by conductive pads respectively connected to the connection terminals of the component, and only the insulating base material is interposed between the pad pairs. Therefore, since the conventional solder resist layer is not formed, the space
- a pad pair is formed in the case of a two-terminal component such as a resistor or a capacitor. In the case of a multi-terminal component (transistor, IC, LSI, etc.) with more connection terminals, it is connected to each connection terminal.
- a pad unit is formed with a conductive pad. The effect is the same in the case of the pad unit.
- the spacer is preferably a solder resist.
- FIG. 1 is a schematic cross-sectional view of a component built-in substrate according to the present invention.
- FIG. 2 is an AA view of FIG. 1. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this invention. It is the schematic which shows in order the manufacturing method of the component built-in board which concerns on this
- a component-embedded substrate 1 includes a plate-shaped insulating base 2.
- This insulating substrate 2 is made of resin, for example, a prepreg.
- An electronic or electrical component 3 is embedded in the insulating base 2.
- a plurality of the components 3 are embedded in the insulating base material 2.
- a plate-like conductive pad 4 is embedded in the insulating base 2. Specifically, one surface (component mounting surface 4 a) and the peripheral side surface of the conductive pad 4 are covered with the insulating base material 2, and the other surface is formed flush with the surface of the insulating base material 2. That is, the other surface (pattern forming surface 4 b described later) of the conductive pad 4 is exposed from the insulating substrate 2.
- the conductive pad is, for example, a gold plating pad.
- the component 3 described above is mounted on one surface (component mounting surface 4a) of the conductive pad 4.
- the conductive pads 4 are respectively arranged corresponding to the connection terminals 5 provided at both ends of the component 3 and are electrically connected via the bonding material 6.
- the bonding material 6 for example, solder or a conductive adhesive is used.
- a pad pair 8 is formed by each conductive pad 4 (a set of two conductive pads 4 connected to each connection terminal 5) on which the same component 3 is mounted.
- a two-terminal component such as a resistor or a capacitor is taken as an example.
- the pad pair 8 is a pad unit.
- the pad unit is composed of three or more conductive pads 4.
- a conductor pattern 7 is formed on the other surface (pattern forming surface 4b) of the conductive pad 4.
- the conductor pattern 7 is formed within the outer edge of the pattern forming surface 4b.
- the conductor pattern 7 is formed inside the outer edge of the pattern forming surface 4b.
- the conductor pattern 7 is not formed so as to protrude from the conductive pad 4, the distance between the conductive pads 4 (actually the pad pair 8) can be narrowed. Thereby, the mounting density with respect to the product board
- the conductor pattern 7 is formed in a range smaller than the outer edge of the other surface (pattern forming surface 4b), that is, a part of the other surface is exposed, the component is surely obtained. 3 can be improved.
- the wiring portion 9 connected to the conductor pattern 7 is provided between the components 3, the interval between the component 3 and the wiring portion 9 can be reduced, and the mounting density of the components 3 is also reduced. Can be improved.
- the position where the wiring portion 9 is provided can be as close to the conductive pad 4 as possible, the wiring density can be increased.
- a spacer 10 is provided between the conductive pads 4 forming the pad pair 8, that is, below the component 3 (in the drawing, the spacer 10 is described only for some components 3).
- the spacer 10 is for maintaining a distance between the component 3 and the surface of the insulating base 2. By providing this spacer 10, the sinking of the component 3 can be prevented. This is particularly effective when the bonding material is solder.
- the spacer 10 is preferably a solder resist. By changing the shape and height of the spacer 10, it is possible to control the installation height of the parts.
- the conductive layer 12 is formed on the support plate 11.
- the support plate 11 is, for example, a SUS plate.
- the conductive layer 2 is a copper thin film made of, for example, copper plating.
- the above-described conductive pad 4 is placed on the conductive layer 12.
- the conductive pad 4 is a gold-plated pad
- the conductive pad 4 is subjected to soft etching on a copper pad, and then has a nickel thickness of 1 ⁇ m to 10 ⁇ m (preferably 5 ⁇ m) and a gold thickness of 0.01 ⁇ m to 1 ⁇ m (preferably 0 ⁇ m). (0.03 ⁇ m) gold plating treatment.
- the soft etching the surface of the conductive pad 4 is 0 ⁇ m to 1.5 ⁇ m in terms of surface roughness (Rz), and is thus formed flat.
- Rz surface roughness
- the surface of the conductive layer 12 is roughened to form a rough surface 12a.
- This roughening treatment is performed by etching the copper surface with respect to the surface of the conductive layer 2 to form an organic film using a blackening reduction treatment, a bond film treatment, or a CZ treatment.
- the surface roughness (Rz) is, for example, 0.1 ⁇ m to 10 ⁇ m.
- the bond film process is a process using a chemical solution manufactured by ATOTECH. This is a treatment for improving the resin adhesion by roughening the copper surface and forming an organometallic film.
- the CZ process is a process using a chemical solution manufactured by MEC. This is for improving the roughening of the copper surface and the resin adhesion.
- the bonding material 6 is disposed on the component mounting surface 4 a of the conductive pad 4.
- the bonding material 6 is an example of solder.
- the connection terminal 5 of the component 3 and the conductive pad 4 are electrically connected through a bonding material 6.
- reflow soldering is performed.
- the component 3 is mounted on the conductive pad 4.
- the rough surface 12a described above is formed up to a position in contact with the side edge of the conductive pad 4, it is possible to reliably prevent the solder from spreading beyond the conductive pad 4. That is, the rough surface 12a plays a role of preventing the solder from spreading.
- solder dam it is not necessary to form a solder dam as used conventionally. Since the solder dam is not necessary, the interval between the adjacent pad pairs 8 can be reduced. Thereby, the space
- the component 3 is embedded in the insulating base 2. Specifically, the component 3 is sandwiched between the conductive layer 12 and the insulating base material 2, and the conductive layer 12 and the insulating base material 2 are pressed against each other. Thereafter, the support plate 11 is removed.
- the conductor pattern 7 is formed on the pattern forming surface 4 b of the conductive pad 4.
- the conductive pattern 2 is formed by removing a part of the conductive layer 2.
- the conductor pattern 7 is formed by etching the conductive layer 12.
- the conductive pad 4 becomes an etching resist, and the exposure of the bonding material 6 can be prevented.
- the conductor pattern 7 is formed in a range equivalent to or smaller than the outer edge of the pattern forming surface 4b.
- the wiring portion 9 may be formed simultaneously with the formation of the conductor pattern 7.
- the figure shows an example of a single-sided substrate in which the conductor pattern 7 is formed only on one side of the substrate, it is naturally applicable to a double-sided substrate.
- the present invention can also be applied to a multilayer substrate in which these are combined.
- Component Embedded Board 1 Component Embedded Board 2 Insulating Base Material 3 Component 4 Conductive Pad 4a Component Mounting Surface (One Surface) 4b Pattern formation surface (the other surface) 5 Connection terminal 6 Bonding material 7 Conductive pattern 8 Pad pair 9 Wiring part 10 Spacer 11 Support plate 12 Conductive layer 12a
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
また、好ましくは、前記接続端子は前記部品の両端部に設けられ、前記パッドユニットはパッド対として前記導電パッドが対向して配設されていることを特徴としている。
また、前記接合材は半田であり、前記スペーサはソルダレジストであることを特徴としている。
まず、図3に示すように、支持板11上に導電層12を形成する。支持板11は、例えばSUS板である。導電層2は、例えば銅めっき等からなる銅薄膜である。次に、図4に示すように、導電層12上に上述した導電パッド4を載置する。導電パッド4が金めっきパッドである場合、この導電パッド4は、銅製のパッドにソフトエッチングを施し、その後、ニッケル厚1μm~10μm(好ましくは5μm)、金厚0.01μm~1μm(好ましくは0.03μm)の金めっき処理を施して形成される。ソフトエッチングされることにより、導電パッド4の表面は表面粗さ(Rz)で表わすと0μm~1.5μmとなるので、平坦に形成される。なお、金めっきパッド7の表面を平坦化処理する方法として、マイクロエッチング又は酸洗浄又はプラズマエッチングを用いてもよい。
2 絶縁基材
3 部品
4 導電パッド
4a 部品実装面(一方の面)
4b パターン形成面(他方の面)
5 接続端子
6 接合材
7 導体パターン
8 パッド対
9 配線部
10 スペーサ
11 支持板
12 導電層
12a 粗面
Claims (6)
- 板形状に形成された樹脂製の絶縁基材と、
該絶縁基材内に埋設された複数の電子又は電気的な部品と、
該部品が接合材を介して一方の面に実装され、前記一方の面及び周側面が前記絶縁基材に覆われた板状の導電パッドと、
該導電パッドの他方の面に形成され、前記他方の面の外縁以内に形成されている導体パターンと
を備えたことを特徴とする部品内蔵基板。 - 前記導体パターンは、前記他方の面の一部を露出させて形成されていることを特徴とする請求項1に記載の部品内蔵基板。
- 前記部品には複数の接続端子が設けられ、
前記導電パッドは、前記接続端子に対し前記接合材を介して電気的に接続され、
各接続端子に接続されたそれぞれの前記導電パッドでパッドユニットが形成され、
隣り合う前記パッドユニット間には前記絶縁基材のみが介在していることを特徴とする請求項1に記載の部品内蔵基板。 - 前記接続端子は前記部品の両端部に設けられ、前記パッドユニットはパッド対として前記導電パッドが対向して配設されていることを特徴とする請求項3に記載の部品内蔵基板。
- 前記パッド対を形成する前記導電パッド間に前記部品と前記絶縁基材の表面との間隔を保持するためのスペーサが設けられていることを特徴とする請求項4に記載の部品内蔵基板。
- 前記接合材は半田であり、前記スペーサはソルダレジストであることを特徴とする請求項5に記載の部品内蔵基板。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012532818A JP5659234B2 (ja) | 2010-09-10 | 2010-09-10 | 部品内蔵基板 |
| KR1020137006798A KR101713640B1 (ko) | 2010-09-10 | 2010-09-10 | 부품 내장 기판 |
| CN201080069036.5A CN103098565B (zh) | 2010-09-10 | 2010-09-10 | 元器件内置基板 |
| PCT/JP2010/065626 WO2012032654A1 (ja) | 2010-09-10 | 2010-09-10 | 部品内蔵基板 |
| TW100129324A TWI539870B (zh) | 2010-09-10 | 2011-08-17 | Built-in components of the substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/065626 WO2012032654A1 (ja) | 2010-09-10 | 2010-09-10 | 部品内蔵基板 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012032654A1 true WO2012032654A1 (ja) | 2012-03-15 |
Family
ID=45810274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2010/065626 Ceased WO2012032654A1 (ja) | 2010-09-10 | 2010-09-10 | 部品内蔵基板 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5659234B2 (ja) |
| KR (1) | KR101713640B1 (ja) |
| CN (1) | CN103098565B (ja) |
| TW (1) | TWI539870B (ja) |
| WO (1) | WO2012032654A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014041601A1 (ja) * | 2012-09-11 | 2014-03-20 | 株式会社メイコー | 部品内蔵基板の製造方法及びこの方法を用いて製造した部品内蔵基板 |
| WO2014041602A1 (ja) * | 2012-09-11 | 2014-03-20 | 株式会社メイコー | 部品内蔵基板の製造方法及びこれを用いた部品内蔵基板 |
| JP2023021803A (ja) * | 2021-08-02 | 2023-02-14 | パナソニックIpマネジメント株式会社 | 実装基板および実装基板の製造方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102281458B1 (ko) * | 2014-06-23 | 2021-07-27 | 삼성전기주식회사 | 소자 내장형 인쇄회로기판, 반도체 패키지 및 그 제조방법 |
| US20220312591A1 (en) * | 2021-03-26 | 2022-09-29 | Juniper Networks, Inc. | Substrate with conductive pads and conductive layers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10308573A (ja) * | 1997-05-02 | 1998-11-17 | Nec Corp | プリント配線板 |
| WO2009001621A1 (ja) * | 2007-06-26 | 2008-12-31 | Murata Manufacturing Co., Ltd. | 部品内蔵基板の製造方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4034073B2 (ja) * | 2001-05-11 | 2008-01-16 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
| JP2006324567A (ja) * | 2005-05-20 | 2006-11-30 | Matsushita Electric Ind Co Ltd | 部品内蔵基板とその製造方法 |
| JP4874305B2 (ja) * | 2008-07-22 | 2012-02-15 | 株式会社メイコー | 電気・電子部品内蔵回路基板とその製造方法 |
-
2010
- 2010-09-10 CN CN201080069036.5A patent/CN103098565B/zh not_active Expired - Fee Related
- 2010-09-10 JP JP2012532818A patent/JP5659234B2/ja not_active Expired - Fee Related
- 2010-09-10 WO PCT/JP2010/065626 patent/WO2012032654A1/ja not_active Ceased
- 2010-09-10 KR KR1020137006798A patent/KR101713640B1/ko not_active Expired - Fee Related
-
2011
- 2011-08-17 TW TW100129324A patent/TWI539870B/zh not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10308573A (ja) * | 1997-05-02 | 1998-11-17 | Nec Corp | プリント配線板 |
| WO2009001621A1 (ja) * | 2007-06-26 | 2008-12-31 | Murata Manufacturing Co., Ltd. | 部品内蔵基板の製造方法 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014041601A1 (ja) * | 2012-09-11 | 2014-03-20 | 株式会社メイコー | 部品内蔵基板の製造方法及びこの方法を用いて製造した部品内蔵基板 |
| WO2014041602A1 (ja) * | 2012-09-11 | 2014-03-20 | 株式会社メイコー | 部品内蔵基板の製造方法及びこれを用いた部品内蔵基板 |
| US9355990B2 (en) | 2012-09-11 | 2016-05-31 | Meiko Electronics Co., Ltd. | Manufacturing method of device embedded substrate and device embedded substrate manufactured by this method |
| JPWO2014041602A1 (ja) * | 2012-09-11 | 2016-08-12 | 株式会社メイコー | 部品内蔵基板の製造方法及びこれを用いた部品内蔵基板 |
| US9596765B2 (en) | 2012-09-11 | 2017-03-14 | Meiko Electronics Co., Ltd. | Manufacturing method for component incorporated substrate and component incorporated substrate manufactured using the method |
| JP2023021803A (ja) * | 2021-08-02 | 2023-02-14 | パナソニックIpマネジメント株式会社 | 実装基板および実装基板の製造方法 |
| JP7710168B2 (ja) | 2021-08-02 | 2025-07-18 | パナソニックIpマネジメント株式会社 | 実装基板および実装基板の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5659234B2 (ja) | 2015-01-28 |
| TWI539870B (zh) | 2016-06-21 |
| CN103098565B (zh) | 2016-08-03 |
| KR101713640B1 (ko) | 2017-03-08 |
| KR20140006771A (ko) | 2014-01-16 |
| TW201216793A (en) | 2012-04-16 |
| JPWO2012032654A1 (ja) | 2013-12-12 |
| CN103098565A (zh) | 2013-05-08 |
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