JP5131412B1 - はんだ合金 - Google Patents
はんだ合金 Download PDFInfo
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- JP5131412B1 JP5131412B1 JP2012533171A JP2012533171A JP5131412B1 JP 5131412 B1 JP5131412 B1 JP 5131412B1 JP 2012533171 A JP2012533171 A JP 2012533171A JP 2012533171 A JP2012533171 A JP 2012533171A JP 5131412 B1 JP5131412 B1 JP 5131412B1
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- solder
- solder alloy
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- voids
- mass
- Prior art date
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- 229910000679 solder Inorganic materials 0.000 title claims abstract description 111
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 79
- 239000000956 alloy Substances 0.000 title claims abstract description 79
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 7
- 238000005304 joining Methods 0.000 claims description 4
- 229910017944 Ag—Cu Inorganic materials 0.000 abstract description 19
- 230000000052 comparative effect Effects 0.000 description 11
- 229910000765 intermetallic Inorganic materials 0.000 description 9
- 239000011800 void material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000009792 diffusion process Methods 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 2
- 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 2
- 230000001133 acceleration Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 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 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/203—Fluxing, i.e. applying flux onto surfaces
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
- B23K35/025—Pastes, creams, slurries
-
- 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
-
- 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
質量%で、Ag:1.0〜5.0%、Cu:0.1〜1.0%、Sb:0.005〜0.025%、Fe:0.005〜0.015%、および残部Snから成る合金組成を有する。質量%で、Feの含有量は0.006〜0.014%である。質量%で、Sbの含有量は0.007〜0.023%である。好ましくは、質量比で、Fe:Sb=20:80〜60:40である。また、好ましくは、FeとSbとの総含有量が0.012〜0.032質量%である。
【選択図】図3
Description
本発明者らは、Sn−Ag−Cu系はんだ合金の接続信頼性を確保するにあたり、高温環境下で使用している際のカーケンダイルボイドの発生が問題となることを知った。したがって、本発明の具体的課題は、そのようなカーケンダイルボイドの発生を効果的に防止できるSn−Ag−Cu系はんだ合金を提供することである。
(1)質量%で、Ag:1.0〜5.0%、Cu:0.1〜1.0%、Sb:0.005〜0.025%、Fe:0.005〜0.015%、および残部Snから成る合金組成を有するはんだ合金。
(3)質量%で、Cuの含有量は0.2〜0.7%である、上記(1)または上記(2)に記載のはんだ合金。
(5)質量比で、Fe:Sb=20:80〜60:40である、上記(1)〜上記(4)のいずれか1つに記載のはんだ合金。
(7)上記(1)〜上記(6)のいずれか1つに記載のはんだ合金からなるはんだボール。
(9)上記(1)〜上記(6)のいずれか1つに記載のはんだ合金を用いた接合方法。
本発明に係るSn−Ag−Cu−Sb−Feはんだ合金は、SbおよびFeの両元素を含有するため、高温環境下に長時間曝されても、電極との接合界面に形成されるCu3Snなどの金属間化合物の成長を抑制し、カーケンダルボイドの発生数を低減することにより、優れた接続信頼性を確保することができる。
Agの含有量は1.0〜5.0%である。Agははんだ合金の強度を向上させる。Agが5.0%より多いとはんだ合金中にAg3Snが多量に発生してはんだ合金が脆化するために耐衝撃落下特性が劣る。Agが1.0%未満であるとはんだ合金の強度が十分でない。Agの含有量は、好ましくは2.0〜4.0%であり、より好ましくは2.9〜3.1%である。
本発明では、加速試験における高温放置条件を、温度が125℃、150℃であり、時間が500時間、1000時間とした。これらの条件は、携帯電話や、高い信頼性が要求される自動車関連の部品に用いられる場合にも十分な条件である。
試料を、125℃−500時間、125℃−1000時間、150℃−500時間、150℃−1000時間に設定した恒温槽(大気雰囲気)に保持した。その後、試料を恒温槽から取り出して、冷却した。
高温放置試験後の各条件の試料について、各々FE−SEMを用いて3000倍のはんだ継手断面写真を撮影した。そして、各々についてはんだ継手界面に発生している、径が0.1μm以上のボイドの総数を数え、ボイド発生数の平均値を算出した。結果を表1に示す。ボイド発生数の平均値が60個以下を良い(○)、61〜99個をやや悪い(△)、100個以上を悪い(×)とした。なお、表1中、下線は本発明の範囲から外れた組成を示す。
Claims (9)
- 質量%で、Ag:1.0〜5.0%、Cu:0.1〜1.0%、Sb:0.005〜0.025%、Fe:0.005〜0.015%、および残部Snから成る合金組成を有するはんだ合金。
- 質量%で、Agの含有量は2.0〜4.0%である、請求項1に記載のはんだ合金。
- 質量%で、Cuの含有量は0.2〜0.7%である、請求項1または2に記載のはんだ合金。
- 質量%で、Sbの含有量は0.007〜0.023%である、請求項1〜3のいずれか1項に記載のはんだ合金。
- 質量比で、Fe:Sb=20:80〜60:40である、請求項1〜4のいずれか1項に記載のはんだ合金。
- 質量%で、Feの含有量は0.006〜0.014%である、請求項1〜5のいずれか1項に記載のはんだ合金。
- 請求項1〜6のいずれか1項に記載のはんだ合金からなるはんだボール。
- 請求項1〜6のいずれか1項に記載のはんだ合金からなるはんだ継手。
- 請求項1〜6のいずれか1項に記載のはんだ合金を用いた接合方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/059668 WO2013153595A1 (ja) | 2012-04-09 | 2012-04-09 | はんだ合金 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP5131412B1 true JP5131412B1 (ja) | 2013-01-30 |
JPWO2013153595A1 JPWO2013153595A1 (ja) | 2015-12-17 |
Family
ID=47693021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012533171A Active JP5131412B1 (ja) | 2012-04-09 | 2012-04-09 | はんだ合金 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8932519B2 (ja) |
EP (1) | EP2679335B1 (ja) |
JP (1) | JP5131412B1 (ja) |
KR (2) | KR20130124516A (ja) |
CN (1) | CN103476540B (ja) |
PT (1) | PT2679335T (ja) |
TW (1) | TWI441704B (ja) |
WO (1) | WO2013153595A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109175573A (zh) * | 2018-09-12 | 2019-01-11 | 南昌大学 | 一种Cu-Ni合金化基板与无铅钎料的焊点及其制备方法 |
CN109175572A (zh) * | 2018-09-12 | 2019-01-11 | 南昌大学 | 一种双相基板与无铅钎料的焊点及其制备工艺 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104625464A (zh) * | 2014-12-23 | 2015-05-20 | 苏州龙腾万里化工科技有限公司 | 一种新型无铅锡棒 |
Citations (4)
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JP2002239780A (ja) * | 2001-02-09 | 2002-08-28 | Nippon Steel Corp | ハンダ合金、ハンダボール及びハンダバンプを有する電子部材 |
WO2006129713A1 (ja) * | 2005-06-03 | 2006-12-07 | Senju Metal Industry Co., Ltd. | 鉛フリーはんだ合金 |
JP2007237250A (ja) * | 2006-03-09 | 2007-09-20 | Nippon Steel Materials Co Ltd | 鉛フリーハンダ合金、ハンダボール及び電子部材 |
JP2009506203A (ja) * | 2005-08-24 | 2009-02-12 | フライズ メタルズ インコーポレイテッド | 半田合金 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US6231691B1 (en) | 1997-02-10 | 2001-05-15 | Iowa State University Research Foundation, Inc. | Lead-free solder |
JP3544904B2 (ja) | 1999-09-29 | 2004-07-21 | 株式会社トッパンNecサーキットソリューションズ | はんだ、それを使用したプリント配線基板の表面処理方法及びそれを使用した電子部品の実装方法 |
TW592872B (en) * | 2001-06-28 | 2004-06-21 | Senju Metal Industry Co | Lead-free solder alloy |
JP2004154845A (ja) | 2002-11-08 | 2004-06-03 | Hitachi Ltd | 電子装置接続用はんだとはんだボール及びそれを用いた電子装置 |
JP2005040847A (ja) | 2003-07-25 | 2005-02-17 | Hitachi Metals Ltd | はんだボールの製造方法 |
US20050100474A1 (en) * | 2003-11-06 | 2005-05-12 | Benlih Huang | Anti-tombstoning lead free alloys for surface mount reflow soldering |
JP2007237251A (ja) * | 2006-03-09 | 2007-09-20 | Nippon Steel Materials Co Ltd | 鉛フリーハンダ合金、ハンダボール及び電子部材 |
KR20130073995A (ko) * | 2006-03-09 | 2013-07-03 | 신닛테츠스미킹 마테리알즈 가부시키가이샤 | 무연 솔더 합금, 솔더 볼 및 전자 부재와, 자동차 탑재 전자 부재용 무연 솔더 합금, 솔더 볼 및 전자 부재 |
KR101160860B1 (ko) * | 2006-07-05 | 2012-07-02 | 니혼한다가부시끼가이샤 | 크림 땜납 및 전자 부품의 납땜 방법 |
CN102029479A (zh) * | 2010-12-29 | 2011-04-27 | 广州有色金属研究院 | 一种低银无铅焊料合金及其制备方法和装置 |
TWI464031B (zh) * | 2011-12-14 | 2014-12-11 | Univ Yuan Ze | 抑制柯肯達爾孔洞形成於銲料與銅銲墊之間的方法 |
-
2012
- 2012-04-09 KR KR1020137016630A patent/KR20130124516A/ko active Application Filing
- 2012-04-09 JP JP2012533171A patent/JP5131412B1/ja active Active
- 2012-04-09 US US13/261,681 patent/US8932519B2/en active Active
- 2012-04-09 KR KR1020147028285A patent/KR101590289B1/ko active IP Right Grant
- 2012-04-09 EP EP12858678.1A patent/EP2679335B1/en active Active
- 2012-04-09 WO PCT/JP2012/059668 patent/WO2013153595A1/ja active Application Filing
- 2012-04-09 PT PT128586781T patent/PT2679335T/pt unknown
- 2012-04-09 CN CN201280004441.8A patent/CN103476540B/zh active Active
-
2013
- 2013-02-06 TW TW102104555A patent/TWI441704B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002239780A (ja) * | 2001-02-09 | 2002-08-28 | Nippon Steel Corp | ハンダ合金、ハンダボール及びハンダバンプを有する電子部材 |
WO2006129713A1 (ja) * | 2005-06-03 | 2006-12-07 | Senju Metal Industry Co., Ltd. | 鉛フリーはんだ合金 |
JP2009506203A (ja) * | 2005-08-24 | 2009-02-12 | フライズ メタルズ インコーポレイテッド | 半田合金 |
JP2007237250A (ja) * | 2006-03-09 | 2007-09-20 | Nippon Steel Materials Co Ltd | 鉛フリーハンダ合金、ハンダボール及び電子部材 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109175573A (zh) * | 2018-09-12 | 2019-01-11 | 南昌大学 | 一种Cu-Ni合金化基板与无铅钎料的焊点及其制备方法 |
CN109175572A (zh) * | 2018-09-12 | 2019-01-11 | 南昌大学 | 一种双相基板与无铅钎料的焊点及其制备工艺 |
Also Published As
Publication number | Publication date |
---|---|
US20130343809A1 (en) | 2013-12-26 |
EP2679335B1 (en) | 2017-06-14 |
PT2679335T (pt) | 2017-07-26 |
JPWO2013153595A1 (ja) | 2015-12-17 |
EP2679335A1 (en) | 2014-01-01 |
WO2013153595A1 (ja) | 2013-10-17 |
KR20140130750A (ko) | 2014-11-11 |
CN103476540B (zh) | 2015-11-25 |
TWI441704B (zh) | 2014-06-21 |
EP2679335A4 (en) | 2014-12-03 |
KR20130124516A (ko) | 2013-11-14 |
US8932519B2 (en) | 2015-01-13 |
TW201350250A (zh) | 2013-12-16 |
CN103476540A (zh) | 2013-12-25 |
KR101590289B1 (ko) | 2016-02-01 |
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