JP2005053218A - 極薄接着剤層付銅箔及びその極薄接着剤層付銅箔の製造方法 - Google Patents
極薄接着剤層付銅箔及びその極薄接着剤層付銅箔の製造方法 Download PDFInfo
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- JP2005053218A JP2005053218A JP2004172985A JP2004172985A JP2005053218A JP 2005053218 A JP2005053218 A JP 2005053218A JP 2004172985 A JP2004172985 A JP 2004172985A JP 2004172985 A JP2004172985 A JP 2004172985A JP 2005053218 A JP2005053218 A JP 2005053218A
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- copper foil
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- adhesive layer
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Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- 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
-
- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/386—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive
-
- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/389—Improvement of the adhesion between the insulating substrate and the metal by the use of a coupling agent, e.g. silane
-
- 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
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0358—Resin coated copper [RCC]
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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
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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
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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
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
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- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
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Abstract
【解決手段】粗化処理の施されていない銅箔3の片面に樹脂基材との良好な張り合わせ密着性を確保するための極薄プライマー樹脂層を設けた銅箔であって、前記粗化処理の施されていない銅箔の表面粗さ(Rz)が2μm以下である面に、シランカップリング剤層2を備え、そのシランカップリング剤層2の上に換算厚さが1〜5μmの極薄プライマー樹脂層4を備えたことを特徴とするプリント配線板用の極薄接着剤層付銅箔1等を採用する。
【選択図】 図1
Description
本件発明に係る極薄接着剤層付銅箔1は、図1に模式的に示した模式断面を持つものである。ここで、シランカップリング剤層2を極めて明確に記載しているが、透過電子顕微鏡を用いても現実の製品では完全に層状に確認できるものではなく、以下の説明をより分かりやすくするためのものである。なお、シランカップリング剤層2が無い場合もあり、係る場合のイメージは図1から容易に想像できるものである。即ち、本件発明に係る極薄接着剤層付銅箔1を最も単純に言い表せば、粗化処理の施されていない銅箔3の片面に極薄樹脂を備えたものである。本件発明に係る極薄樹脂層付銅箔の場合、この極薄樹脂層を「極薄プライマー樹脂層4」と称しているのである。従って、この模式断面から判断する限り、従来の樹脂付銅箔と称する製品の樹脂層が単に薄くなっただけであると見ることも可能である。
この第1樹脂組成物は、エポキシ樹脂、硬化剤、溶剤に可溶な芳香族ポリアミド樹脂ポリマー、及び、必要に応じて適宜量添加する硬化促進剤からなるものである。
この第2樹脂組成物は、エポキシ樹脂(硬化剤を含む)、ポリエーテルサルホン樹脂、及び、必要に応じて適宜量添加する硬化促進剤からなるものである。
上述してきた本件発明に係る極薄接着剤層付銅箔の製造方法に関して説明する。ここでは、まず以下に述べる工程a.、工程b.の手順で極薄プライマー樹脂層の形成に用いる樹脂溶液を調整し、当該樹脂溶液を銅箔のシランカップリング剤層を形成した面に、1μm〜5μmの換算厚さ分を塗布し、乾燥させることで半硬化状態とすることを特徴とするプリント配線板用の極薄接着剤層付銅箔の製造方法を採用するのである。
芳香族ポリアミド樹脂ポリマー 50重量部
フェノール樹脂 18重量部
硬化促進剤 0.1重量部
この比較例では、実施例1の半硬化状態の極薄プライマー樹脂層の厚さを20μmとして形成した樹脂層付銅箔を製造したのである。
本比較例では、上記した特許文献2に開示の樹脂組成物の一種を用いて、実施例で使用した18μ未処理銅箔の表面粗さRzが1.1μmの光沢面に樹脂層を形成し、接着剤層付銅箔としたのである。
2 シランカップリング剤層
3 銅箔層
4 極薄プライマー樹脂層
Claims (9)
- 粗化処理の施されていない銅箔の片面に樹脂基材との良好な張り合わせ密着性を確保するための極薄プライマー樹脂層を設けた銅箔であって、
前記粗化処理の施されていない銅箔の表面粗さ(Rz)が2μm以下である面に、換算厚さが1〜5μmの極薄プライマー樹脂層を備えたことを特徴とするプリント配線板用の極薄接着剤層付銅箔。 - 極薄プライマー樹脂層を設けたる銅箔表面に、シランカップリング剤層を備えた請求項1に記載のプリント配線板用の極薄接着剤層付銅箔。
- 前記シランカップリング剤層はアミノ系シランカップリング剤、メルカプト系シランカップリング剤を用いて形成したものである請求項2に記載のプリント配線板用の極薄接着剤層付銅箔。
- 前記極薄プライマー樹脂層は、20〜80重量部のエポキシ樹脂(硬化剤を含む)、20〜80重量部の溶剤に可溶な芳香族ポリアミド樹脂ポリマー、及び、必要に応じて適宜量添加する硬化促進剤からなる樹脂混合物を用いて形成したものである請求項1〜請求項3のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔。
- 前記極薄プライマー樹脂層に用いる芳香族ポリアミド樹脂ポリマーは、芳香族ポリアミドとゴム性樹脂とを反応させることで得られるものである請求項1〜請求項4のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔。
- 前記極薄プライマー樹脂層は、20〜50重量部のエポキシ樹脂(硬化剤を含む)、50〜95重量部のポリエーテルサルホン樹脂(末端に水酸基又はアミノ基を持ち且つ溶剤に可溶なもの)、及び、必要に応じて適宜量添加する硬化促進剤からなる樹脂混合物を用いて形成したものである請求項1〜請求項3のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔。
- MIL規格におけるMIL−P−13949Gに準拠して測定したときのレジンフローが5%以内である請求項1〜請求項6のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔。
- 請求項1〜請求項7のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔の製造方法であって、
以下の工程a.、工程b.の手順で極薄プライマー樹脂層の形成に用いる樹脂溶液を調製し、当該樹脂溶液を銅箔のシランカップリング剤層を形成した面に、1μm〜5μmの換算厚さ分を塗布し、乾燥させることで半硬化状態とすることを特徴とするプリント配線板用の極薄接着剤層付銅箔の製造方法。
工程a. エポキシ樹脂(硬化剤含む)、溶剤に可溶な芳香族ポリアミド樹脂ポリマー若しくはポリエーテルサルホン樹脂、及び、必要に応じて適宜量添加する硬化促進剤とを混合して樹脂混合物とする。
工程b. 前記樹脂混合物を、有機溶剤を用いて溶解し、樹脂固形分10wt%〜40wt%の樹脂溶液とする。 - 請求項1〜請求項7のいずれかに記載のプリント配線板用の極薄接着剤層付銅箔を用いた銅張積層板。
Priority Applications (6)
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JP2004172985A JP3949676B2 (ja) | 2003-07-22 | 2004-06-10 | 極薄接着剤層付銅箔及びその極薄接着剤層付銅箔の製造方法 |
TW93120200A TWI268127B (en) | 2003-07-22 | 2004-07-06 | Copper foil with an extremely thin adhesive layer and the method thereof |
PCT/JP2004/010101 WO2005009093A1 (ja) | 2003-07-22 | 2004-07-15 | 極薄接着剤層付銅箔及びその極薄接着剤層付銅箔の製造方法 |
CNB2004800020067A CN100358398C (zh) | 2003-07-22 | 2004-07-15 | 带有极薄粘接剂层的铜箔及其制造方法 |
US10/565,587 US8815387B2 (en) | 2003-07-22 | 2004-07-15 | Copper foil with ultra thin adhesive layer, and a method for manufacturing the copper foil with ultra thin adhesive layer |
KR1020057014302A KR100655557B1 (ko) | 2003-07-22 | 2004-07-15 | 초박접착제층 부착 동박 및 이 초박접착제층 부착 동박의제조방법 |
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- 2004-06-10 JP JP2004172985A patent/JP3949676B2/ja not_active Expired - Fee Related
- 2004-07-06 TW TW93120200A patent/TWI268127B/zh not_active IP Right Cessation
- 2004-07-15 WO PCT/JP2004/010101 patent/WO2005009093A1/ja active Application Filing
- 2004-07-15 CN CNB2004800020067A patent/CN100358398C/zh not_active Expired - Fee Related
- 2004-07-15 US US10/565,587 patent/US8815387B2/en not_active Expired - Fee Related
- 2004-07-15 KR KR1020057014302A patent/KR100655557B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
KR20060063775A (ko) | 2006-06-12 |
TWI268127B (en) | 2006-12-01 |
US8815387B2 (en) | 2014-08-26 |
US20070243402A1 (en) | 2007-10-18 |
KR100655557B1 (ko) | 2006-12-11 |
CN1723745A (zh) | 2006-01-18 |
WO2005009093A1 (ja) | 2005-01-27 |
JP3949676B2 (ja) | 2007-07-25 |
CN100358398C (zh) | 2007-12-26 |
TW200509761A (en) | 2005-03-01 |
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