JP2005236244A - 回路基板の製造方法 - Google Patents
回路基板の製造方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000002184 metal Substances 0.000 claims abstract description 105
- 229910052751 metal Inorganic materials 0.000 claims abstract description 105
- 239000011888 foil Substances 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 31
- 229910000679 solder Inorganic materials 0.000 claims abstract description 26
- 239000011889 copper foil Substances 0.000 claims description 84
- 239000010410 layer Substances 0.000 claims description 68
- 229920005989 resin Polymers 0.000 claims description 46
- 239000011347 resin Substances 0.000 claims description 46
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 238000007747 plating Methods 0.000 claims description 7
- 238000009713 electroplating Methods 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims description 4
- 239000010949 copper Substances 0.000 abstract description 30
- 229910052802 copper Inorganic materials 0.000 abstract description 25
- 239000010408 film Substances 0.000 description 52
- 238000005530 etching Methods 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 239000010931 gold Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
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- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/022—Processes for manufacturing precursors of printed circuits, i.e. copper-clad substrates
- H05K3/025—Processes for manufacturing precursors of printed circuits, i.e. copper-clad substrates by transfer of thin metal foil formed on a temporary carrier, e.g. peel-apart copper
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- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
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- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
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- 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
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- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
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- 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
- Y10T29/49156—Manufacturing circuit on or in base with selective destruction of conductive paths
Abstract
【解決手段】 第1金属(銅)よりなる金属箔16が剥離可能な状態で形成された基板を用意し、金属箔16上に第2金属(はんだ)よりなる金属層24を含むビルドアップ配線を形成し、金属箔16を基板から剥離することにより、金属箔16上にビルドアップ配線が形成された構造の回路部材30を得た後に、回路部材30の金属箔16を金属層24に対して選択的に除去することにより、金属層24を露出させることを含む。
【選択図】 図5
Description
図1〜図5は本発明の第1実施形態の回路基板の製造方法を順に示す断面図である。
図7〜図10は本発明の第2実施形態の回路基板の製造方法を順に示す断面図である。第2実施形態が第1実施形態と異なる点は、ベース基板として、樹脂基板上に剥離できる状態で1層の銅箔が形成されたものを使用し、銅箔を最終的に除去するのではなく、銅箔を配線パターンとして利用することにある。
図11及び図12は本発明の第3実施形態の回路基板の製造方法を順に示す断面図である。第3実施形態が第2実施形態と異なる点は、ベース基板として、樹脂基板上に剥離層を介して銅箔が貼着されたものを使用することにある。
Claims (12)
- 少なくとも一方の面に第1金属よりなる金属箔が剥離可能な状態で形成された基板を用意する工程と、
前記金属箔上に、第2金属よりなる金属層を含むビルドアップ配線を形成する工程と、
前記金属箔を前記基板から剥離することにより、前記金属箔上に前記ビルドアップ配線が形成された構造の回路部材を得る工程と、
前記回路部材の前記金属箔を前記金属層に対して選択的に除去することにより、前記金属層を露出させる工程とを有することを特徴とする回路基板の製造方法。 - 前記金属箔上にビルドアップ配線を形成する工程は、
所要部に開口部が設けられた絶縁膜を前記金属箔上に形成する工程と、
前記絶縁膜の開口部の前記金属箔の部分に凹部を形成する工程と、
前記金属箔をめっき給電層に利用した電解めっきにより、前記凹部及び前記開口部の少なくとも一部に前記金属層を形成する工程と、
前記金属層に前記開口部を介して接続される配線パターンを前記絶縁膜上に形成する工程とを含むことを特徴とする請求項1に記載の回路基板の製造方法。 - 少なくとも一方の面に金属箔が剥離可能な状態で形成された基板を用意する工程と、
開口部が設けられた絶縁膜を前記金属箔上に形成する工程と、
前記開口部を介して前記金属箔に電気的に接続される第1配線パターンを前記絶縁膜上に形成する工程と、
前記基板から前記金属箔を剥離することにより、前記金属箔、絶縁膜及び前記第1配線パターンにより構成される回路部材を得る工程と、
前記回路部材の金属箔をパターニングすることにより、前記第1配線パターンに前記絶縁膜の開口部を介して電気的に接続される第2配線パターンを、前記絶縁膜の第1配線パターンが形成された面と反対面に形成する工程とを有することを特徴とする回路基板の製造方法。 - 前記金属箔が剥離可能な状態で形成された基板は、該基板の周縁部に選択的に設けられた接着層によって前記基板上に前記金属箔が貼着されたものであり、
前記回路部材を得る工程は、前記基板の前記接着層を含む周縁部分を切断して除去した後に、前記基板から前記金属箔を分離することを含むことを特徴とする請求項3に記載の回路基板の製造方法。 - 前記金属箔が剥離可能な状態で形成された基板は、前記基板と前記金属箔の間に剥離層が介在したものであり、
前記回路部材を得る工程は、前記剥離層と前記金属箔の界面から剥離することを含むことを特徴とする請求項3に記載の回路基板の製造方法。 - 前記第1の金属よりなる金属箔は、銅箔であり、前記第2の金属よりなる前記金属層は、はんだ層であることを特徴とすることを特徴とする請求項1又は2に記載の回路基板の製造方法。
- 前記基板は、樹脂よりなることを特徴とする請求項1乃至6のいずれか一項に記載の回路基板の製造方法。
- 前記金属箔が剥離可能な状態で形成された基板は、
銅箔、剥離層及びキャリア銅箔が順に積層された構造のキャリア付き銅箔が貼着された基板であって、前記金属箔は前記キャリア銅箔であり、
前記回路部材を得る工程において、前記キャリア銅箔を前記剥離層との界面から剥離することを特徴とする請求項1又は2に記載の回路基板の製造方法。 - 前記基板の両面に前記キャリア付き銅箔が貼着されており、前記基板の両面側から前記回路部材がそれぞれ得られることを特徴とする請求項8に記載の回路基板の製造方法。
- 前記金属箔が剥離可能な状態で形成された基板を用意する工程において、前記金属箔は前記基板の両面に設けられており、
前記回路部材を得る工程において、前記基板の両面側から前記回路部材がそれぞれ得られることを特徴とする請求項3乃至5のいずれか一項に記載の回路基板の製造方法。 - 前記金属層を露出させる工程において、前記金属層は前記配線パターンに接続されるバンプとなることを特徴とする請求項1、2又は8に記載の回路基板の製造方法。
- 前記配線パターンを前記絶縁膜上に形成する工程において、前記配線パターンはn層(nは1以上の整数)で積層されて形成されることを特徴とする請求項2又は3に記載の回路基板の製造方法。
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KR101055586B1 (ko) | 2009-07-03 | 2011-08-08 | 삼성전기주식회사 | 금속범프를 갖는 인쇄회로기판의 제조방법 |
JP2011035358A (ja) * | 2009-07-31 | 2011-02-17 | Samsung Electro-Mechanics Co Ltd | プリント基板及びその製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
TWI343774B (en) | 2011-06-11 |
TW200528003A (en) | 2005-08-16 |
US20050155222A1 (en) | 2005-07-21 |
KR20050076612A (ko) | 2005-07-26 |
KR101093594B1 (ko) | 2011-12-15 |
US7222421B2 (en) | 2007-05-29 |
US20070130762A1 (en) | 2007-06-14 |
US7716826B2 (en) | 2010-05-18 |
CN100569051C (zh) | 2009-12-09 |
CN1645990A (zh) | 2005-07-27 |
JP4541763B2 (ja) | 2010-09-08 |
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