JP6706013B1 - 銅張積層板および銅張積層板の製造方法 - Google Patents
銅張積層板および銅張積層板の製造方法 Download PDFInfo
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- JP6706013B1 JP6706013B1 JP2019182353A JP2019182353A JP6706013B1 JP 6706013 B1 JP6706013 B1 JP 6706013B1 JP 2019182353 A JP2019182353 A JP 2019182353A JP 2019182353 A JP2019182353 A JP 2019182353A JP 6706013 B1 JP6706013 B1 JP 6706013B1
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- metal layer
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- copper
- base
- clad laminate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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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
- H05K3/02—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
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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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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- H—ELECTRICITY
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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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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Abstract
Description
第2発明の銅張積層板は、第1発明において、前記下地金属層は、平均膜厚が0.3〜1.5nmであることを特徴とする。
第3発明の銅張積層板は、第1または第2発明において、前記下地金属層は、ニッケル、クロム、バナジウム、チタン、モリブデンおよび銅からなる群から選択される少なくとも2種の元素を含む合金からなることを特徴とする。
第4発明の銅張積層板は、第1〜第3発明のいずれかにおいて、前記ベースフィルムは、全体または表層が、液晶ポリマー、ポリエーテルエーテルケトン、ポリエチレンナフタレート、フッ素樹脂または熱可塑性ポリイミドからなるフィルムであることを特徴とする。
第5発明の銅張積層板の製造方法は、乾式めっき法により熱可塑性樹脂からなるベースフィルムの表面に下地金属層を成膜する工程と、前記下地金属層の表面に銅層を成膜する工程と、を備え、前記下地金属層は、平均膜厚が0.3〜1.9nmであることを特徴とする。
第6発明の銅張積層板の製造方法は、第5発明において、前記下地金属層は、平均膜厚が0.3〜1.5nmであることを特徴とする。
第7発明の銅張積層板の製造方法は、第5または第6発明において、前記下地金属層は、ニッケル、クロム、バナジウム、チタン、モリブデンおよび銅からなる群から選択される少なくとも2種の元素を含む合金からなることを特徴とする。
第8発明の銅張積層板の製造方法は、第5〜第7発明のいずれかにおいて、前記ベースフィルムは、全体または表層が、液晶ポリマー、ポリエーテルエーテルケトン、ポリエチレンナフタレート、フッ素樹脂または熱可塑性ポリイミドからなるフィルムであることを特徴とする。
図1に示すように、本発明の一実施形態に係る銅張積層板1は、ベースフィルム10と、ベースフィルム10の表面に成膜された導体層20とからなる。導体層20は下地金属層21と、銅層22とからなる。下地金属層21と銅層22とはベースフィルム10の表面にこの順に積層されている。図1に示すようにベースフィルム10の片面のみに導体層20が成膜されてもよいし、ベースフィルム10の両面に導体層20が成膜されてもよい。
(共通の条件)
・脱水処理
長尺帯状のベースフィルムを、ロールツーロール機構を有する真空装置内に設置した。真空ポンプで装置内の圧力を1Pa以下とした状態で、ベースフィルムを搬送しつつ赤外線ヒーターで加熱して脱水した。
真空装置内の圧力を1×10-4Pa以下にした後、酸素ガスを導入して圧力を2.5Paとした。この状態で直流放電プラズマをベースフィルムの表面に数秒間照射した。
スパッタリング装置内の圧力を1×10-4Pa以下にした後、アルゴンガスを導入して圧力を0.3Paとした。この状態でベースフィルムの片面に下地金属層および銅薄膜層を成膜した。ここで銅薄膜層の厚さを100nmとした。
めっき液として硫酸銅溶液を用い、電流密度2A/dm2で電解めっきを行なって、銅薄膜層の表面に厚さ12μmの銅めっき被膜を成膜した。これにより銅張積層板を得た。
ベースフィルムと導体層との初期密着力の測定として、IPC−TM−650、NUMBER2.4.9に準拠した方法でピール強度を測定した。ここで、銅張積層板の一部にドライフィルムをラミネートして感光性レジスト膜を形成した後、露光現像し、塩化第2鉄溶液で導体層をエッチングにより除去した。その後、レジストを除去してピール強度評価用の1mm幅のリードを形成した。また、ピールの角度は90°とした。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルム(株式会社クラレ製、ベクスターCTZ、以下同じ)を用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.3nmとした。得られた銅張積層板のピール強度は344N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmのポリエーテルエーテルケトンフィルム(倉敷紡績株式会社製、エクスピーク)を用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.3nmとした。得られた銅張積層板のピール強度は328N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmのポリエチレンナフタレートフィルム(帝人フィルムソリューション株式会社製、テオネックスQ83)を用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.3nmとした。得られた銅張積層板のピール強度は323N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmのフッ素樹脂フィルム(AGC株式会社製、フルオンプラスEA−2000)を用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.3nmとした。得られた銅張積層板のピール強度は309N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの熱可塑性ポリイミドフィルム(株式会社カネカ製、ピクシオ)を用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.3nmとした。得られた銅張積層板のピール強度は349N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は7質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.5nmとした。得られた銅張積層板のピール強度は356N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は35質量%Cu−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を1.5nmとした。得られた銅張積層板のピール強度は382N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は7質量%V−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.8nmとした。得られた銅張積層板のピール強度は365N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は28質量%Mo−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を1.0nmとした。得られた銅張積層板のピール強度は391N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は7.5質量%Ti−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.9nmとした。得られた銅張積層板のピール強度は370N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は10質量%Ni−Cu合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を1.9nmとした。得られた銅張積層板のピール強度は317N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を0.2nmとした。得られた銅張積層板のピール強度は291N/mであった。また、スパッタリング後のベースフィルムにシワは観察されなかった。
ベースフィルムとして厚さ50μmの液晶ポリマーフィルムを用いた。下地金属層は20質量%Cr−Ni合金ターゲットを用いたスパッタリングにより成膜した。ここで、下地金属層の平均膜厚を2.0nmとした。得られた銅張積層板のピール強度は400N/mであった。また、スパッタリング後のベースフィルムにシワが観察された。
10 ベースフィルム
20 導体層
21 下地金属層
22 銅層
Claims (8)
- 熱可塑性樹脂からなるベースフィルム(芳香族ジアミン類と芳香族テトラカルボン酸類とを反応させて得られるポリイミドフィルムであって、残存溶媒量が0.1〜100ppm以下であるポリイミドフィルムを除く)と、
乾式めっき法により前記ベースフィルムの表面に成膜された下地金属層と、
前記下地金属層の表面に成膜された銅層と、を備え、
前記下地金属層は、平均膜厚が0.3〜1.9nmである
ことを特徴とする銅張積層板。 - 前記下地金属層は、平均膜厚が0.3〜1.5nmである
ことを特徴とする請求項1記載の銅張積層板。 - 前記下地金属層は、ニッケル、クロム、バナジウム、チタン、モリブデンおよび銅からなる群から選択される少なくとも2種の元素を含む合金からなる
ことを特徴とする請求項1または2記載の銅張積層板。 - 前記ベースフィルムは、全体または表層が、液晶ポリマー、ポリエーテルエーテルケトン、ポリエチレンナフタレート、フッ素樹脂または熱可塑性ポリイミドからなるフィルムである
ことを特徴とする請求項1〜3のいずれかに記載の銅張積層板。 - 乾式めっき法により熱可塑性樹脂からなるベースフィルム(芳香族ジアミン類と芳香族テトラカルボン酸類とを反応させて得られるポリイミドフィルムであって、残存溶媒量が0.1〜100ppm以下であるポリイミドフィルムを除く)の表面に下地金属層を成膜する工程と、
前記下地金属層の表面に銅層を成膜する工程と、を備え、
前記下地金属層は、平均膜厚が0.3〜1.9nmである
ことを特徴とする銅張積層板の製造方法。 - 前記下地金属層は、平均膜厚が0.3〜1.5nmである
ことを特徴とする請求項5記載の銅張積層板の製造方法。 - 前記下地金属層は、ニッケル、クロム、バナジウム、チタン、モリブデンおよび銅からなる群から選択される少なくとも2種の元素を含む合金からなる
ことを特徴とする請求項5または6記載の銅張積層板の製造方法。 - 前記ベースフィルムは、全体または表層が、液晶ポリマー、ポリエーテルエーテルケトン、ポリエチレンナフタレート、フッ素樹脂または熱可塑性ポリイミドからなるフィルムである
ことを特徴とする請求項5〜7のいずれかに記載の銅張積層板の製造方法。
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WO2022176099A1 (ja) * | 2021-02-18 | 2022-08-25 | Tdk株式会社 | 積層樹脂フィルム、集電体および二次電池 |
WO2022176094A1 (ja) * | 2021-02-18 | 2022-08-25 | Tdk株式会社 | 積層樹脂フィルム、集電体および二次電池 |
KR20240006611A (ko) | 2021-05-12 | 2024-01-15 | 가부시키가이샤 가네카 | 수지 필름 및 그 제조 방법, 그리고 금속화 수지 필름, 프린트 배선판 |
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TW202206286A (zh) | 2020-07-28 | 2022-02-16 | 美商聖高拜塑膠製品公司 | 介電基板及其形成方法 |
EP4265073A4 (en) | 2020-12-16 | 2024-10-23 | Saint Gobain Performance Plastics Corp | DIELECTRIC SUBSTRATE AND METHOD FOR THE PRODUCTION THEREOF |
JP7057012B1 (ja) * | 2021-06-30 | 2022-04-19 | 尾池工業株式会社 | 高周波回路基板用導電性フィルム及び高周波回路基板 |
WO2023114838A1 (en) * | 2021-12-17 | 2023-06-22 | Saint-Gobain Performance Plastics Corporation | Dielectric substrate and method of forming the same |
KR102405236B1 (ko) * | 2022-05-11 | 2022-06-07 | 고려아연 주식회사 | 전해 동박의 제조방법 |
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CN100566505C (zh) * | 2004-09-01 | 2009-12-02 | 住友金属矿山株式会社 | 2层挠性基板及其制造方法 |
CN100542374C (zh) * | 2004-09-01 | 2009-09-16 | 住友金属矿山株式会社 | 2层挠性基板及其制造方法 |
JP2007301781A (ja) * | 2006-05-10 | 2007-11-22 | Toyobo Co Ltd | 金属化ポリイミドフィルムおよび回路基板 |
US8663484B2 (en) * | 2007-07-09 | 2014-03-04 | Sumitomo Metal Mining Co., Ltd. | Method for manufacturing a printed circuit board and a printed circuit board obtained by the manufacturing method |
US9066432B2 (en) * | 2010-11-17 | 2015-06-23 | Jx Nippon Mining & Metals Corporation | Copper foil for printed wiring board |
JP6119433B2 (ja) | 2013-05-31 | 2017-04-26 | 住友金属鉱山株式会社 | めっき積層体およびその製造方法 |
JP7071915B2 (ja) * | 2016-04-05 | 2022-05-19 | 住友金属鉱山株式会社 | 導電性基板 |
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WO2022176099A1 (ja) * | 2021-02-18 | 2022-08-25 | Tdk株式会社 | 積層樹脂フィルム、集電体および二次電池 |
WO2022176094A1 (ja) * | 2021-02-18 | 2022-08-25 | Tdk株式会社 | 積層樹脂フィルム、集電体および二次電池 |
KR20240006611A (ko) | 2021-05-12 | 2024-01-15 | 가부시키가이샤 가네카 | 수지 필름 및 그 제조 방법, 그리고 금속화 수지 필름, 프린트 배선판 |
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US20210101366A1 (en) | 2021-04-08 |
US11426976B2 (en) | 2022-08-30 |
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KR20210039898A (ko) | 2021-04-12 |
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