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1. WO2012056753 - LOW-SILVER-CONTENT SOLDER ALLOY AND SOLDER PASTE COMPOSITION

Publication Number WO/2012/056753
Publication Date 03.05.2012
International Application No. PCT/JP2011/060983
International Filing Date 12.05.2011
IPC
B23K 35/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
26with the principal constituent melting at less than 400°C
B23K 35/22 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
C22C 13/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
13Alloys based on tin
C22C 13/02 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
13Alloys based on tin
02with antimony or bismuth as the next major constituent
CPC
B22F 1/0011
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
B23K 35/025
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
02characterised by mechanical features, e.g. shape
0222for use in soldering, brazing
0244Powders, particles or spheres; Preforms made therefrom
025Pastes, creams, slurries
B23K 35/22
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
B23K 35/262
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
26with the principal constituent melting at less than 400 degrees C
262Sn as the principal constituent
B23K 35/3006
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
30with the principal constituent melting at less than 1550 degrees C
3006Ag as the principal constituent
C22C 1/005
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
005Making alloys with holding in the range of the solid-liquid phase
Applicants
  • ハリマ化成株式会社 Harima Chemicals, Inc. [JP]/[JP] (AllExceptUS)
  • 今村 陽司 IMAMURA, Yoji [JP]/[JP] (UsOnly)
  • 池田 一輝 IKEDA, Kazuki [JP]/[JP] (UsOnly)
  • 朴 錦玉 PIAO, JinYu [CH]/[JP] (UsOnly)
  • 竹本 正 TAKEMOTO, Tadashi [JP]/[JP] (UsOnly)
Inventors
  • 今村 陽司 IMAMURA, Yoji
  • 池田 一輝 IKEDA, Kazuki
  • 朴 錦玉 PIAO, JinYu
  • 竹本 正 TAKEMOTO, Tadashi
Agents
  • 深井 敏和 FUKAI, Toshikazu
Priority Data
2010-24291629.10.2010JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LOW-SILVER-CONTENT SOLDER ALLOY AND SOLDER PASTE COMPOSITION
(FR) ALLIAGE DE SOUDURE À FAIBLE TENEUR EN ARGENT ET COMPOSITION DE PÂTE À SOUDER
(JA) 低銀はんだ合金およびはんだペースト組成物
Abstract
(EN)
This low-silver-content solder alloy comprises 0.05-2.0 mass% of silver, 1.0 mass% or less of copper, 3.0 mass% or less of antimony, 2.0 mass% or less of bismuth, 4.0 mass% or less of indium, 0.2 mass% or less of nickel, 0.1 mass% or less of germanium and 0.5 mass% or less of cobalt (wherein the content of each of the above-mentioned elements copper, antimony, bismuth, indium, nickel, germanium and cobalt is not 0 mass%), with the remainder being tin. According to the present invention, it becomes possible to provide a low-silver-content solder alloy which has a reduced Ag content and therefore can be produced at reduced cost, has excellent stretching properties, an excellent melting point, excellent strength and the like, and also has high fatigue resistance (cold thermal fatigue resistance) and long-lasting reliability.
(FR)
L'invention concerne un alliage de soudure à faible teneur en argent comprenant 0,05 à 2,0 % en masse d'argent, 1,0 % en masse ou moins de cuivre, 3,0 % en masse ou moins d'antimoine, 2,0 % en masse ou moins de bismuth, 4,0 % en masse ou moins d'indium, 0,2 % en masse ou moins de nickel, 0,1 % en masse ou moins de germanium et 0,5 % en masse ou moins de cobalt (la teneur de chacun des éléments cuivre, antimoine, bismuth, indium, nickel, germanium et cobalt précités n'étant pas 0 % en masse), le reste étant de l'étain. Selon la présente invention, il devient possible de produire un alliage de soudure à faible teneur en argent qui a une teneur réduite en Ag et, pour cette raison, peut être produit à un coût réduit, a d'excellentes propriétés d'étirage, un excellent point de fusion, une excellente résistance et similaires, et possède également une résistance élevée à la fatigue (résistance à la fatigue thermique à froid) et une fiabilité durable.
(JA)
 本発明の低銀はんだ合金は、銀が0.05~2.0質量%、銅が1.0質量%以下、アンチモンが3.0質量%以下、ビスマスが2.0質量%以下、インジウムが4.0質量%以下、ニッケルが0.2質量%以下、ゲルマニウムが0.1質量%以下、コバルトが0.5質量%以下(但し、前記銅、アンチモン、ビスマス、インジウム、ニッケル、ゲルマニウム、およびコバルトは、それぞれ0質量%ではない)、および残部が錫からなる。本発明によれば、Agの含有量を低減させてコストを抑えるとともに、優れた伸び、融点、強度などを有し、かつ高い耐疲労性(耐冷熱疲労性)を有する、長期間信頼できる低銀はんだ合金を提供することができる。
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