JPWO2009131114A1 - 鉛フリーはんだ - Google Patents
鉛フリーはんだ Download PDFInfo
- Publication number
- JPWO2009131114A1 JPWO2009131114A1 JP2010509183A JP2010509183A JPWO2009131114A1 JP WO2009131114 A1 JPWO2009131114 A1 JP WO2009131114A1 JP 2010509183 A JP2010509183 A JP 2010509183A JP 2010509183 A JP2010509183 A JP 2010509183A JP WO2009131114 A1 JPWO2009131114 A1 JP WO2009131114A1
- Authority
- JP
- Japan
- Prior art keywords
- solder
- lead
- free solder
- tin
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 94
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 238000005476 soldering Methods 0.000 claims description 26
- 230000004907 flux Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 abstract description 36
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 34
- 241000607479 Yersinia pestis Species 0.000 abstract description 27
- 229910020888 Sn-Cu Inorganic materials 0.000 description 15
- 229910019204 Sn—Cu Inorganic materials 0.000 description 15
- 206010035148 Plague Diseases 0.000 description 14
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000956 alloy Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 229910020220 Pb—Sn Inorganic materials 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 229910052787 antimony Inorganic materials 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- 229910020882 Sn-Cu-Ni Inorganic materials 0.000 description 1
- 229910020932 Sn-Sb-Ag Inorganic materials 0.000 description 1
- 229910009071 Sn—Zn—Bi Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
- C22C13/02—Alloys based on tin with antimony or bismuth as the next major constituent
-
- 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
- H05K3/30—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
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3463—Solder compositions in relation to features of the printed circuit board or the mounting process
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
特許文献2:特開2006−212660号公報
特許文献3:特開平10−225790号公報
特許文献4:特願2006−26745号公報
特許文献4に開示された鉛フリーはんだは、はんだ付け部に存在するCu導体へのはんだの溶出を抑制するため、2質量%超という多量のCuを含有する。そのため、はんだの溶融温度が高く、その用途が限定される。
本発明者らは、Sn−0.7Cuで代表される低Cu、高SnのSn−Cu系はんだ合金の錫ペストが、0.1質量%以上、1質量%未満という少量のBiの単独添加により効果的に防止されることを見出した。しかし、Biは、それ自体が脆性を有する金属であるため、Bi添加の鉛フリーはんだは、Biを添加する前のものに比べて耐衝撃性が多少劣るという問題があった。この耐衝撃性の劣化は、微量のNi添加によって完全に阻止できるだけでなく、耐衝撃性の向上も可能となることが判明した。つまり、微量のBiと微量のNiを組み合わせて添加することにより、低Cu、高SnのSn−Cu系はんだ合金の錫ペストの防止と耐衝撃性の改善という、相反する特性を共に達成することができる。さらに、この鉛フリーはんだは、広がり性(濡れ性)も良好であり、はんだ付け不良を発生させにくい。
本発明の鉛フリーはんだは、例えば−40℃という極低温でも錫ペストを起こさないため、寒冷地においてはんだ付け部が崩壊しない。また、微量のNiの添加により、Bi添加による耐衝撃性の低下が防止され、さらに、濡れ性がBi無添加のSn−Cuはんだより改善される。従って、本発明により、はんだ付け不良が防止され、耐衝撃性に優れ、錫ペストの問題がない、信頼性の高いはんだ付け部を低コストで作製することが可能となる。
本発明に係るSn−Cu系鉛フリーはんだは、Cu:0.5%以上、0.8質量%以下、Bi:0.1%以上、1%未満、Ni:0.02%以上、0.04%以下、残部Snから本質的になる。この鉛フリーはんだは、Sn含有量が98%以上(より正確には98.16%以上)、典型的には99%以上、と高いにもかかわらず錫ペストを起こさず、また広がり性と耐衝撃性が良好である。
各組成の鉛フリーはんだを、長辺30mm、短辺20mm、長さ200mmの解放鋳型(舟型)に鋳込んで、棒状鋳造物を得た。この鋳造物の外周を旋盤で切削して、直径8mm、長さ110mmの棒状はんだ試料を得た。この棒状試料を−40℃の冷凍庫に約10000時間放置した後、冷凍庫から取り出して、その表面を目視観察した。
耐衝撃性は、JEDECのJESD22−B111の規格に準拠して実施した落下試験により評価した。
各鉛フリーはんだの広がり性(濡れ性)は、JIS Z 3198−3(鉛フリーはんだ試験方法−広がり試験方法)に準じて試験した。広がり率が70%以上を○、70%未満を×とした。
各鉛フリーはんだの溶融温度を、JIS Z 3198−1(鉛フリーはんだ試験方法−第一部:溶融温度範囲測定方法)に準じて測定した。
Claims (4)
- 質量%で、Cu:0.5%以上、0.8%以下、Bi:0.1%以上、1%未満、Ni:0.02%以上、0.04%以下、残部Snからなることを特徴とする鉛フリーはんだ。
- Bi含有量が0.1%以上、0.5%以下である、請求項1記載の鉛フリーはんだ。
- 請求項1または2記載の鉛フリーはんだとはんだ付け用フラックスとの混合物からなるソルダペースト。
- 請求項1または2に記載の鉛フリーはんだを用いて電子部品をプリント基板にはんだ付けする方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010509183A JP4968381B2 (ja) | 2008-04-23 | 2009-04-21 | 鉛フリーはんだ |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008112007 | 2008-04-23 | ||
JP2008112007 | 2008-04-23 | ||
PCT/JP2009/057910 WO2009131114A1 (ja) | 2008-04-23 | 2009-04-21 | 鉛フリーはんだ |
JP2010509183A JP4968381B2 (ja) | 2008-04-23 | 2009-04-21 | 鉛フリーはんだ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2009131114A1 true JPWO2009131114A1 (ja) | 2011-08-18 |
JP4968381B2 JP4968381B2 (ja) | 2012-07-04 |
Family
ID=41216846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010509183A Active JP4968381B2 (ja) | 2008-04-23 | 2009-04-21 | 鉛フリーはんだ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8220692B2 (ja) |
EP (1) | EP2277657B1 (ja) |
JP (1) | JP4968381B2 (ja) |
KR (1) | KR101184234B1 (ja) |
CN (1) | CN102066042B (ja) |
WO (1) | WO2009131114A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5413926B2 (ja) * | 2010-08-18 | 2014-02-12 | 新日鉄住金マテリアルズ株式会社 | 半導体実装用半田ボール及び電子部材 |
CN102371439A (zh) * | 2011-10-17 | 2012-03-14 | 上海交通大学 | Sn-Cu-Bi-Cr无铅焊料 |
TWI460046B (zh) * | 2012-11-12 | 2014-11-11 | Accurus Scient Co Ltd | High strength silver-free lead-free solder |
SG11201508575XA (en) * | 2013-04-18 | 2015-11-27 | Senju Metal Industry Co | Lead-free solder alloy |
EP3006158A4 (en) * | 2013-05-29 | 2017-01-18 | Nippon Steel & Sumikin Materials Co., Ltd. | Solder ball and electronic member |
ES2881222T3 (es) | 2013-09-11 | 2021-11-29 | Senju Metal Industry Co | Circuito semiconductor que incluye una soldadura sin plomo |
RU2695791C2 (ru) * | 2014-04-30 | 2019-07-26 | Нихон Супериор Ко., Лтд. | Бессвинцовый припой |
CN104741820A (zh) * | 2015-03-24 | 2015-07-01 | 东莞市成飞焊接材料有限公司 | 无铅钎料 |
CN105479031A (zh) * | 2016-01-29 | 2016-04-13 | 谢拂晓 | 无铅钎料 |
JP2017157582A (ja) * | 2016-02-29 | 2017-09-07 | 株式会社東芝 | 半導体装置 |
HUE053519T2 (hu) | 2016-09-13 | 2021-07-28 | Senju Metal Industry Co | Forrasztó ötvözet, forrasztó gömb és forrasztási kötés |
WO2018077798A1 (en) * | 2016-10-24 | 2018-05-03 | Jaguar Land Rover Limited | Apparatus and method relating to electrochemical migration |
US11123823B2 (en) | 2017-11-08 | 2021-09-21 | Alpha Assembly Solutions Inc. | Cost-effective lead-free solder alloy for electronic applications |
JP7287606B2 (ja) * | 2018-08-10 | 2023-06-06 | 株式会社日本スペリア社 | 鉛フリーはんだ合金 |
CN109955001B (zh) * | 2019-03-20 | 2021-08-13 | 中山翰华锡业有限公司 | 一种无铅抗氧化锡膏及其制备方法 |
CN110383460B (zh) * | 2019-05-21 | 2021-11-30 | 京东方科技集团股份有限公司 | 柔性电子基板的制作方法及基板结构 |
CN111085798A (zh) * | 2019-12-30 | 2020-05-01 | 云南锡业锡材有限公司 | 一种高可靠性的无银锡基钎料及其制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0225790A (ja) | 1988-07-14 | 1990-01-29 | Hiroko Yoshinaga | 腕時計ガラスの保護具 |
KR19980068127A (ko) | 1997-02-15 | 1998-10-15 | 김광호 | 납땜용 무연 합금 |
JP2000197988A (ja) * | 1998-03-26 | 2000-07-18 | Nihon Superior Co Ltd | 無鉛はんだ合金 |
US6365097B1 (en) * | 1999-01-29 | 2002-04-02 | Fuji Electric Co., Ltd. | Solder alloy |
JP2002057177A (ja) * | 2000-08-09 | 2002-02-22 | Hitachi Metals Ltd | はんだボールおよびその製造方法 |
US20030021718A1 (en) * | 2001-06-28 | 2003-01-30 | Osamu Munekata | Lead-free solder alloy |
GB2421030B (en) * | 2004-12-01 | 2008-03-19 | Alpha Fry Ltd | Solder alloy |
JP2006212660A (ja) | 2005-02-02 | 2006-08-17 | Nihon Superior Co Ltd | 耐低温性にすぐれたはんだ合金とその製造方法 |
JP4363372B2 (ja) | 2005-07-19 | 2009-11-11 | 株式会社村田製作所 | はんだ組成物およびはんだ付け物品 |
CN1927523A (zh) * | 2005-09-06 | 2007-03-14 | 天津市宏远电子有限公司 | 热浸镀用无铅焊料合金 |
EP1971699A2 (en) * | 2006-01-10 | 2008-09-24 | Illinois Tool Works Inc. | Lead-free solder with low copper dissolution |
-
2009
- 2009-04-21 US US12/736,624 patent/US8220692B2/en active Active
- 2009-04-21 KR KR1020107025975A patent/KR101184234B1/ko active IP Right Grant
- 2009-04-21 CN CN200980122267.5A patent/CN102066042B/zh active Active
- 2009-04-21 WO PCT/JP2009/057910 patent/WO2009131114A1/ja active Application Filing
- 2009-04-21 JP JP2010509183A patent/JP4968381B2/ja active Active
- 2009-04-21 EP EP09733918A patent/EP2277657B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP4968381B2 (ja) | 2012-07-04 |
EP2277657B1 (en) | 2012-07-11 |
KR101184234B1 (ko) | 2012-09-19 |
KR20110014991A (ko) | 2011-02-14 |
US8220692B2 (en) | 2012-07-17 |
EP2277657A1 (en) | 2011-01-26 |
EP2277657A4 (en) | 2011-04-13 |
CN102066042A (zh) | 2011-05-18 |
CN102066042B (zh) | 2016-03-23 |
US20110089224A1 (en) | 2011-04-21 |
WO2009131114A1 (ja) | 2009-10-29 |
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