KR101235176B1 - Method for manufacturing high-heat dissipation circuit substrate useful to LED - Google Patents
Method for manufacturing high-heat dissipation circuit substrate useful to LED Download PDFInfo
- Publication number
- KR101235176B1 KR101235176B1 KR1020110027891A KR20110027891A KR101235176B1 KR 101235176 B1 KR101235176 B1 KR 101235176B1 KR 1020110027891 A KR1020110027891 A KR 1020110027891A KR 20110027891 A KR20110027891 A KR 20110027891A KR 101235176 B1 KR101235176 B1 KR 101235176B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- base
- substrate
- base layer
- pad
- 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
- H05K1/053—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an inorganic 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- 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
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Led Device Packages (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
A method of manufacturing a high heat dissipation circuit board according to the present invention includes: forming a non-conductive circuit base layer 230 on a base substrate 210 to expose a predetermined region of the base substrate 210; Filling the conductive pad base layer 240 on the base substrate 210 exposed by the circuit base layer 230; After the chemical plating layer is formed on the circuit base layer 230 and the pad base layer 240, an electroplating layer is formed on the chemical plating layer so that the chemical plating layer 250 and the electroplating layer 255 are sequentially stacked. Forming a; Forming a conductive bonding pad layer 270 on the plating layer 260; The plating layer pattern 261 and the bonding pad 271 are sequentially formed on a predetermined region including the pad base layer 240 by patterning the plating layer 260 and the bonding pad layer 270 to expose the circuit base layer 230. Forming a stacked structure; And a control unit. Since the present invention does not use the thermal bonding method, it is not necessary to consider the warpage of the substrate due to thermal expansion and thermal contraction, and thus the high heat dissipation circuit board 200 can be made thin, and various types of thick and solid base substrates can be used. In addition, various and creative LED lightings can be implemented, and heat dissipation and light distribution can be maximized more than before. And manufacturing costs can be reduced.
Description
The present invention relates to a method for manufacturing a high heat dissipation circuit board suitable for LED mounting, in particular, by configuring a circuit in various types of base boards from thin and flexible to thick and rigid, not only improves heat dissipation efficiency but also lowers manufacturing cost, resulting in high output. It is to provide a high heat dissipation circuit board manufacturing method more suitable for the mounting of the LED.
Since LED devices have been used mainly for displays until recently, high heat dissipation was not required, resin-based substrates have been used as circuit boards on which LEDs are mounted. However, in recent years, as the application in the lighting field is prominent, heat dissipation measures for products equipped with high-power LEDs have been highlighted, and deterioration of LED light efficiency and lifetime due to heat has emerged as a big problem. In particular, since LED modules are becoming smaller and have a higher output, heat generation is inevitably generated. Therefore, such heat dissipation measures are urgently required.
1 is a view for explaining a circuit board for the LED. As shown in FIG. 1, heat generated in the
Therefore, high heat dissipation of the high output LED circuit board is inevitable, and a metal base substrate and a ceramic substrate are used instead of the resin substrate. Since the heat dissipation of the circuit board has a great influence on the performance and life of the LED, the circuit board is an important factor in designing a high output LED product.
2 is a view illustrating a conventional heat
3 is a view for explaining a process of manufacturing the heat
However, since the above-described conventional heat
Therefore, the problem to be solved by the present invention, by using a method other than the thermal bonding method by configuring a circuit on various types of base boards from thin and flexible to thick and rigid, not only improves the heat dissipation efficiency but also the manufacturing cost is low compared to the conventional The present invention provides a method of manufacturing a high heat dissipation circuit board that is more suitable for mounting high power LEDs.
The high heat dissipation circuit board manufacturing method according to the present invention for achieving the above object,
Forming a non-conductive circuit base layer on the base substrate to expose a predetermined region of the base substrate;
Filling a conductive pad base layer on the base substrate exposed by the circuit base layer;
After forming a chemical plating layer on the circuit base layer and the pad base layer, forming an electroplating layer on the chemical plating layer to form a plating layer in which the chemical plating layer and the electroplating layer are sequentially stacked;
Forming a conductive bonding pad layer on the plating layer; And
Patterning the plating layer and the bonding pad layer to expose the circuit base layer to form a structure in which a plating layer pattern and a bonding pad are sequentially stacked on a predetermined region including an upper portion of the pad base layer; And a control unit.
The base substrate may be a metal substrate having an insulating layer formed thereon, an aluminum substrate having an aluminum oxide layer formed thereon, or an insulating heat-dissipating plastic substrate containing a thermally conductive ceramic.
In the case where the metal substrate is used as the base substrate, the insulating layer is formed to expose a predetermined region of the metal substrate, and the circuit base layer is formed on the insulating layer to expose the metal substrate. The pad base layer may be formed to be filled on the metal substrate exposed by the insulating layer and the circuit base layer. In this case, the pad base layer may be formed by electroplating a metal including Au, Ag, Al, Cu, Sn, or Ni.
The insulating layer is a liquid paint of a polymer resin comprising silicon, epoxy, phenol, acrylic, or polyester, or a liquid paint mixed with a ceramic comprising Al 2 O 3, AlN, BN, Si, or SiO 2 is printed thereon. It can be formed by coating and curing on the metal substrate in a manner.
The circuit base layer may include a liquid non-conductive material in which a metal including Au, Ag, Al, Cu, Sn, or Ni is mixed with a polymer resin including silicon, epoxy, phenol, acrylic, or polyester. It may be formed by coating and curing the printing method on the base substrate.
The pad base layer may include a liquid conductive material in which a metal including Au, Ag, Al, Cu, Sn, or Ni and a polymer resin including silicon, epoxy, phenol, acrylic, or polyester is mixed with the base substrate. It may be formed by coating and curing on a printing method.
The plating layer is preferably thicker than the chemical plating layer of the electroplating layer. The bonding pad layer may include Ni / Au in which Ni and Au are sequentially stacked from the bottom up, or Ni / Ag in which Ni and Ag are sequentially stacked from the bottom up.
Since the present invention does not use the thermal bonding method, it is not necessary to consider the warpage of the substrate due to thermal expansion and thermal contraction, and thus the high heat
1 is a view for explaining a circuit board for the LED;
2 is a view for explaining a conventional heat
3 is a view for explaining a process of manufacturing the heat
4 is a view for explaining a method of manufacturing a high heat
5 is a view for explaining a manufacturing method of a high heat
6 is a view for explaining a manufacturing method of a high heat
7 is a view for explaining a manufacturing method of a high heat
8 is a view for explaining the advantages of the present invention.
Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. The following examples are only presented to understand the content of the present invention, and those skilled in the art will be capable of many modifications within the technical spirit of the present invention. Therefore, the scope of the present invention should not be construed as limited to these embodiments.
[First Embodiment]
4 is a view for explaining a method of manufacturing a high heat
Next, as shown in Figure 4b, a liquid mixture of a metal such as Au, Ag, Al, Cu, Sn, Ni and a polymer resin such as silicon, epoxy, phenol, acrylic, polyester excellent in heat resistance and insulation The non-conductive material is coated on the
Subsequently, as shown in FIG. 4C, metals such as Au, Ag, Al, Cu, Sn, and Ni, silicon, epoxy, phenol, and the like, which are excellent in heat resistance, are exposed on the
In addition, the
Next, as illustrated in FIG. 4E, Ni / Au or Ni / Ag is electroplated on the
Subsequently, after the
The
On the other hand, as shown in Figure 4h from the beginning by using the
According to the first embodiment of the present invention, since the thickness of the
[Second Embodiment]
5 is a view for explaining a method of manufacturing a high heat
Specifically, as shown in FIG. 5A, the
Subsequently, as shown in FIG. 5C, polymers such as Au, Ag, Al, Cu, Sn, and Ni and polymers having excellent heat resistance on the exposed
Subsequently, the
[Third Embodiment]
FIG. 6 is a view for explaining a method of manufacturing a high heat
[Fourth Embodiment]
FIG. 7 is a view for explaining a method of manufacturing a high heat
8 is a view for explaining the advantages of the present invention. Since the present invention does not use the thermal bonding method, it is not necessary to consider the warpage of the substrate due to thermal expansion and thermal contraction, and thus the high heat
200: high heat radiation circuit board
210, 310, 410: base substrate
211: metal substrate
212: insulation layer
230: circuit base layer
240: pad base layer
250: chemical plating layer
255: electroplating layer
260: plating layer
261: plating layer pattern
270: bonding pad layer
271: bonding pads
280: photoresist pattern
311: aluminum substrate
312: aluminum oxide layer
Claims (11)
Filling a conductive pad base layer on the base substrate exposed by the circuit base layer;
After the chemical plating layer is formed on the circuit base layer and the pad base layer, an electroplating layer is formed on the chemical plating layer to be thicker than the chemical plating layer to form a plating layer in which the chemical plating layer and the electroplating layer are sequentially stacked. Making;
Forming a conductive bonding pad layer on the plating layer; And
Patterning the plating layer and the bonding pad layer to expose the circuit base layer to form a structure in which a plating layer pattern and a bonding pad are sequentially stacked on a predetermined region including an upper portion of the pad base layer; A high heat dissipation circuit board manufacturing method comprising a.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110027891A KR101235176B1 (en) | 2011-03-29 | 2011-03-29 | Method for manufacturing high-heat dissipation circuit substrate useful to LED |
PCT/KR2011/005016 WO2012133990A1 (en) | 2011-03-29 | 2011-07-08 | Method for manufacturing high heat-dissipation circuit board appropriate for mounting light emitting diode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110027891A KR101235176B1 (en) | 2011-03-29 | 2011-03-29 | Method for manufacturing high-heat dissipation circuit substrate useful to LED |
Publications (2)
Publication Number | Publication Date |
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KR20120110189A KR20120110189A (en) | 2012-10-10 |
KR101235176B1 true KR101235176B1 (en) | 2013-02-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020110027891A KR101235176B1 (en) | 2011-03-29 | 2011-03-29 | Method for manufacturing high-heat dissipation circuit substrate useful to LED |
Country Status (2)
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KR (1) | KR101235176B1 (en) |
WO (1) | WO2012133990A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102080664B1 (en) * | 2013-10-11 | 2020-02-24 | 삼성전기주식회사 | Printed circuit board |
US20160338211A1 (en) * | 2015-05-12 | 2016-11-17 | Samsung Electro-Mechanics Co., Ltd. | Circuit board and method of manufacturing the same |
CN108679583A (en) * | 2018-04-08 | 2018-10-19 | 伍连彬 | A kind of lighting apparatus and its manufacturing method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004140109A (en) | 2002-10-16 | 2004-05-13 | Kyocera Corp | Method of manufacturing wiring board |
KR20080053153A (en) * | 2006-12-09 | 2008-06-12 | 엘지마이크론 주식회사 | Radiant heat circuit substrate and method for manufacturing thereof |
KR20090059442A (en) * | 2007-12-06 | 2009-06-11 | 삼성전기주식회사 | Method for manufacturing printed circuit board |
JP2010186914A (en) * | 2009-02-13 | 2010-08-26 | Iwasaki Electric Co Ltd | Led unit |
-
2011
- 2011-03-29 KR KR1020110027891A patent/KR101235176B1/en active IP Right Grant
- 2011-07-08 WO PCT/KR2011/005016 patent/WO2012133990A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004140109A (en) | 2002-10-16 | 2004-05-13 | Kyocera Corp | Method of manufacturing wiring board |
KR20080053153A (en) * | 2006-12-09 | 2008-06-12 | 엘지마이크론 주식회사 | Radiant heat circuit substrate and method for manufacturing thereof |
KR20090059442A (en) * | 2007-12-06 | 2009-06-11 | 삼성전기주식회사 | Method for manufacturing printed circuit board |
JP2010186914A (en) * | 2009-02-13 | 2010-08-26 | Iwasaki Electric Co Ltd | Led unit |
Also Published As
Publication number | Publication date |
---|---|
WO2012133990A1 (en) | 2012-10-04 |
KR20120110189A (en) | 2012-10-10 |
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