JP4254488B2 - 電子部品用銅箔及びその製造方法 - Google Patents
電子部品用銅箔及びその製造方法 Download PDFInfo
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- JP4254488B2 JP4254488B2 JP2003374453A JP2003374453A JP4254488B2 JP 4254488 B2 JP4254488 B2 JP 4254488B2 JP 2003374453 A JP2003374453 A JP 2003374453A JP 2003374453 A JP2003374453 A JP 2003374453A JP 4254488 B2 JP4254488 B2 JP 4254488B2
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- copper foil
- temperature
- heat treatment
- resin substrate
- copper
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Description
第一には、銅箔の材料として従来の無炭素銅やタフピッチ銅でなく、耐熱温度を上げる添加元素を加えることにより、300〜400℃程度の温度で加熱処理されても銅箔の結晶組織を安定化させる。
第二には、銅箔使用時の加熱による銅箔の収縮は、圧延加工後における銅箔を構成する銅結晶粒の再結晶組織化に起因していると考えられるため、銅箔使用前に予め熱処理を施して銅箔を収縮させて銅箔使用時の銅結晶粒を再結晶組織化させておくことにより、使用時の加熱による収縮を抑える。
酸素含有量が10ppmの無酸素銅をベース材とし、Zrを0.01〜0.20wt%添加し、溶解鋳造した。この鋳塊を熱間圧延して厚さ12mmの素材に加工した後、冷間圧延と焼鈍を繰り返す方法で加工して、厚さ200μmの生地材を製造した。さらにこの生地材を焼鈍した後、厚さ10μmまで冷間圧延して試料とした。
Claims (3)
- 酸素含有量が10重量ppm以下であり、耐熱温度を上げる添加元素のZrを0.01〜0.20重量%含有することにより300〜400℃の温度の加熱処理でも結晶組織が安定であり、樹脂基板と貼り合わせて使用される圧延銅箔であって、前記樹脂基板と貼り合わせる前に予め350℃以上550℃以下の温度で熱処理が施されて銅結晶粒が再結晶組織化されることで前記銅箔を収縮させ、前記銅箔の使用時の加熱によっては収縮が抑えられていることを特徴とする電子部品用銅箔。
- 酸素含有量が10重量ppm以下であり、耐熱温度を上げる添加元素のZrを0.01〜0.20重量%含有させることにより300〜400℃の温度の加熱処理でも結晶組織が安定となるようにし、樹脂基板と貼り合わせて使用される圧延銅箔の製造方法であって、前記樹脂基板と貼り合わせる前に予め350℃以上550℃以下の温度で熱処理を施すことにより銅結晶粒を再結晶組織化させて前記銅箔を収縮させ、前記銅箔の使用時の加熱によっては収縮が抑えられていることを特徴とする電子部品用銅箔の製造方法。
- 前記熱処理温度が400℃以上500℃以下であることを特徴とする請求項2記載の電子部品用銅箔の製造方法。
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JP2003374453A JP4254488B2 (ja) | 2003-11-04 | 2003-11-04 | 電子部品用銅箔及びその製造方法 |
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JP2003374453A JP4254488B2 (ja) | 2003-11-04 | 2003-11-04 | 電子部品用銅箔及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2005138310A JP2005138310A (ja) | 2005-06-02 |
JP4254488B2 true JP4254488B2 (ja) | 2009-04-15 |
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JP2003374453A Expired - Fee Related JP4254488B2 (ja) | 2003-11-04 | 2003-11-04 | 電子部品用銅箔及びその製造方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160117195A (ko) | 2015-03-30 | 2016-10-10 | 제이엑스금속주식회사 | 이차 전지용 압연 동박, 그리고 그것을 사용한 리튬 이온 이차 전지 및 리튬 이온 캐패시터 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011093229A (ja) * | 2009-10-30 | 2011-05-12 | Jx Nippon Mining & Metals Corp | 両面銅張積層板の製造方法、及びそれに用いる1組の銅又は銅合金箔 |
JP2011094200A (ja) * | 2009-10-30 | 2011-05-12 | Jx Nippon Mining & Metals Corp | 銅又は銅合金箔、及びそれを用いた両面銅張積層板の製造方法 |
EP2596949A4 (en) * | 2010-07-22 | 2014-01-15 | Ube Industries | METHOD FOR PRODUCING A POLYIMIDE FILM COATING AND POLYIMIDE FILM COATING |
TWI575680B (zh) * | 2011-08-12 | 2017-03-21 | 三菱綜合材料股份有限公司 | 功率模組用基板、附有散熱片功率模組用基板、功率模組及功率模組用基板之製造方法 |
-
2003
- 2003-11-04 JP JP2003374453A patent/JP4254488B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160117195A (ko) | 2015-03-30 | 2016-10-10 | 제이엑스금속주식회사 | 이차 전지용 압연 동박, 그리고 그것을 사용한 리튬 이온 이차 전지 및 리튬 이온 캐패시터 |
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JP2005138310A (ja) | 2005-06-02 |
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