JP2019188475A - 無鉛ソルダーペースト及びその製造方法 - Google Patents
無鉛ソルダーペースト及びその製造方法 Download PDFInfo
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- 229910000679 solder Inorganic materials 0.000 title claims abstract description 242
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 94
- 239000000956 alloy Substances 0.000 claims abstract description 94
- 239000000203 mixture Substances 0.000 claims abstract description 58
- 229910052802 copper Inorganic materials 0.000 claims abstract description 54
- 239000000843 powder Substances 0.000 claims abstract description 52
- 229910052709 silver Inorganic materials 0.000 claims abstract description 21
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 65
- 239000000654 additive Substances 0.000 claims description 62
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 53
- 230000000996 additive effect Effects 0.000 claims description 43
- 239000011858 nanopowder Substances 0.000 claims description 26
- 230000004907 flux Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 229910003465 moissanite Inorganic materials 0.000 claims 2
- 239000000919 ceramic Substances 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000010949 copper Substances 0.000 description 67
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 52
- 229910000765 intermetallic Inorganic materials 0.000 description 29
- 229910020836 Sn-Ag Inorganic materials 0.000 description 19
- 229910020988 Sn—Ag Inorganic materials 0.000 description 19
- 229910020888 Sn-Cu Inorganic materials 0.000 description 18
- 229910019204 Sn—Cu Inorganic materials 0.000 description 18
- 238000005476 soldering Methods 0.000 description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 229910017770 Cu—Ag Inorganic materials 0.000 description 15
- 238000012360 testing method Methods 0.000 description 14
- 239000013078 crystal Substances 0.000 description 13
- 229910052718 tin Inorganic materials 0.000 description 13
- 239000002105 nanoparticle Substances 0.000 description 12
- 229910017944 Ag—Cu Inorganic materials 0.000 description 10
- 238000003892 spreading Methods 0.000 description 10
- 230000007480 spreading Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 229910017482 Cu 6 Sn 5 Inorganic materials 0.000 description 5
- 229910052797 bismuth Inorganic materials 0.000 description 5
- 239000002041 carbon nanotube Substances 0.000 description 5
- 229910052738 indium Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009736 wetting Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 229910020816 Sn Pb Inorganic materials 0.000 description 3
- 229910020922 Sn-Pb Inorganic materials 0.000 description 3
- 229910008783 Sn—Pb Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012744 reinforcing agent Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007542 hardness measurement Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 101100256637 Drosophila melanogaster senju gene Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910007637 SnAg Inorganic materials 0.000 description 1
- 229910008433 SnCU Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- 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
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
1.本特許ソルダー合金の製造のために、SnAgCu、SnAg,SnCuと添加物を500℃で30分間溶融
2.微細構造の観察:結晶粒径(Grain size)、金属間化合物(IMC)の大きさ
3.硬度測定
4.濡れ性試験(Wetting balance test):ゼロ時間(Zero cross time)、250で
5.広がり性試験(Spreading tests):JIS−Z−3197
*広がり性試験
広がり性試験は、JIS−Z−3197規格に基づいて実施した。先ず、A 30 mm×30 mm×0.3 mmの銅ピースを研磨した後、アルコールで洗浄する。乾燥後、均一な酸化膜を生成するために、150℃の温度で1時間加熱する。
本発明の合金濡れ性測定のために、ウェッティングバランス試験機(RESCA SAT 5000)を用い、濡れ性試験片は、99.99%無酸素銅板10mm × 1mm × 30mmの大きさを用いた。銅試験片は、表面酸化層及び外部不純物を除去するために、炭化ケイ素のサンドペーパー(粒径 #1200 & #2400)を用いて機械的研磨を行い、以後、超音波洗浄した。ウェッティングバランス試験の以前に、銅試片は、BGAタイプのフラックス(SENJU,Sparkle Flux WF−6063M5)で少しコーティングし、さらに30秒間ソルダー溶湯の上で活性化させた。銅試片は、BGA250℃の溶融ソルダー(本発明のソルダー)に5秒間2mmの深さまで2.5mm/sの速度で浸漬した。濡れ性試験で各試片の平均ゼロ時間(zero cross time)が測定される。
ソルダーSn−0.7wt%Cu、Sn−3.5wt%Ag及びSn−3.0wt% Ag−0.5wt% Cuに平均粒径30nm であるLa2O3、70nmであるSiC、20nmであるCu−CNTを添加する。これをアルミナ坩堝に入れて、10/minの昇温速度で加熱される炉(Furnace)で500℃の温度で1時間の間溶融する。ソルダー凝固後、サンプルを採取して研磨エッチングした後、微細構造を観察する。
微細構造:ナノ粒子が添加されたSn−3.0wt% Ag−0.5 wt% Cuソルダーと、ナノ粒子が添加されないSn−3.0wt% Ag−0.5wt% Cuソルダー微細構造を比較した時、結晶粒径と沈殿物、マトリックスの分散で明確な差異が現れる。La2O3が添加されたSn−3.0wt%Ag−0.5wt%CuのAg3Sn等の金属間化合物は微細化され、よく分散された。一方、ナノ粒子が添加されないSn−3.0wt% Ag−0.5wt% Cuソルダーの場合、Ag3Sn等の金属間化合物が粗大化された。
Claims (4)
- 無鉛ソルダー粉末Sn−(0.1〜2)wt%Cu、Sn−(0.5〜5)wt%Ag、及びSn−(0.1〜2)wt%Cu−(0.5〜5)wt%Agの中から選んだ1種の無鉛ソルダー粉末と、
La2O3、La2O3とSiC、La2O3とCu coated CNT(Cu−CNT)、La2O3とZrO2、La2O3とSiCとCu−CNT、及びLa2O3とSiCとCu−CNTとZrO2、の中から選んだ1種を含み、粒子の大きさが10〜70nmであるナノ粉末添加剤と、
からなる無鉛ソルダー合金組成物にフラックスを含んだ無鉛ソルダーペースト。 - 前記ナノ粉末添加剤の含量は、前記無鉛ソルダー合金組成物を基準に、0.001〜1.0wt%であることを特徴とする、請求項1に記載の無鉛ソルダーペースト。
- 無鉛ソルダー粉末Sn−(0.1〜2)wt%Cu、Sn−(0.5〜5)wt%Ag、及びSn−(0.1〜2)wt%Cu−(0.5〜5)wt%Agの中から選んだ1種の無鉛ソルダー粉末に、
La2O3、La2O3とSiC、La2O3とCu coated CNT(Cu−CNT)、La2O3とZrO2、La2O3とSiCとCu−CNT、及びLa2O3とSiCとCu−CNTとZrO2、の中から選んだ1種を含み、粒子の大きさが10〜70nmであるナノ粉末添加剤を混合して無鉛ソルダー合金組成物を製造し、得られた無鉛ソルダー合金組成物にフラックスを混合して製造することを特徴とする、無鉛ソルダーペーストの製造方法。 - 前記ナノ粉末添加剤の含量は、前記無鉛ソルダー合金組成物を基準に、0.001〜1.0wt%であることを特徴とする、請求項3に記載の無鉛ソルダーペーストの製造方法。
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KR1020140107209A KR101671062B1 (ko) | 2014-08-18 | 2014-08-18 | 무연 솔더 합금 조성물 및 무연 솔더 합금의 제조 방법 |
KR10-2014-0107209 | 2014-08-18 |
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JP2019100241A Active JP6842500B2 (ja) | 2014-08-18 | 2019-05-29 | 無鉛ソルダーペースト及びその製造方法 |
JP2019100240A Pending JP2019188474A (ja) | 2014-08-18 | 2019-05-29 | 無鉛ソルダーペースト及びその製造方法 |
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US (1) | US10286498B2 (ja) |
EP (1) | EP3184234B1 (ja) |
JP (4) | JP2017528327A (ja) |
KR (1) | KR101671062B1 (ja) |
CN (2) | CN113977132B (ja) |
WO (1) | WO2016028058A1 (ja) |
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WO2017200361A2 (ko) * | 2016-05-20 | 2017-11-23 | 서울시립대학교 산학협력단 | 무연 솔더 합금 조성물 및 이의 제조방법 |
DE102017107715B4 (de) * | 2017-04-10 | 2022-03-03 | Infineon Technologies Ag | Magnetisches Sensor-Package und Verfahren zur Herstellung eines magnetischen Sensor-Packages |
WO2019027261A1 (ko) * | 2017-08-01 | 2019-02-07 | 서울시립대학교 산학협력단 | 무연솔더 합금 조성물 및 그 제조방법 |
KR102040279B1 (ko) * | 2017-08-01 | 2019-11-04 | 서울시립대학교 산학협력단 | 고성능 무연솔더 합금 조성물 및 그 제조방법 |
KR102040278B1 (ko) * | 2017-11-03 | 2019-11-04 | 서울시립대학교 산학협력단 | 무연솔더 합금 조성물 및 그 제조방법, 무연솔더 합금 조성물을 이용한 부재 간의 접합방법 |
KR102040280B1 (ko) * | 2017-11-03 | 2019-11-04 | 서울시립대학교 산학협력단 | 무연솔더 합금 조성물 및 그 제조방법, 무연솔더 합금 조성물을 이용한 부재 간의 접합방법 |
US11325210B2 (en) * | 2017-11-22 | 2022-05-10 | Shenzhen Fitech Co., Ltd. | Micro/nano particle reinforced composite solder and preparation method therefor |
JP6540869B1 (ja) * | 2018-03-30 | 2019-07-10 | 千住金属工業株式会社 | はんだペースト |
CN109175768A (zh) * | 2018-09-30 | 2019-01-11 | 苏州优诺电子材料科技有限公司 | SiC晶须增强的Sn-Bi系焊料及其制备方法 |
CN109483081A (zh) * | 2018-12-03 | 2019-03-19 | 先导薄膜材料(广东)有限公司 | 金属靶材绑定焊料及其制备方法 |
KR102243472B1 (ko) * | 2018-12-17 | 2021-04-26 | 주식회사 경동원 | 전력반도체 접합용 소결 페이스트 조성물 |
KR20200082107A (ko) | 2018-12-28 | 2020-07-08 | 현대자동차주식회사 | 고온 환경에 적합한 무연 솔더 합금 조성물 및 이의 용도 |
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