JP6705450B2 - 鉛フリーはんだ用フラックスおよび鉛フリーはんだペースト - Google Patents
鉛フリーはんだ用フラックスおよび鉛フリーはんだペースト Download PDFInfo
- Publication number
- JP6705450B2 JP6705450B2 JP2017523640A JP2017523640A JP6705450B2 JP 6705450 B2 JP6705450 B2 JP 6705450B2 JP 2017523640 A JP2017523640 A JP 2017523640A JP 2017523640 A JP2017523640 A JP 2017523640A JP 6705450 B2 JP6705450 B2 JP 6705450B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- flux
- free solder
- component
- activator
- 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.)
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- 229910000679 solder Inorganic materials 0.000 title claims description 78
- 230000004907 flux Effects 0.000 title claims description 70
- 239000012190 activator Substances 0.000 claims description 36
- -1 carboxylic acid compounds Chemical class 0.000 claims description 26
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- 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 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 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 claims description 18
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052794 bromium Inorganic materials 0.000 claims description 11
- 239000013008 thixotropic agent Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- 238000005476 soldering Methods 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- LAWOZCWGWDVVSG-UHFFFAOYSA-N dioctylamine Chemical compound CCCCCCCCNCCCCCCCC LAWOZCWGWDVVSG-UHFFFAOYSA-N 0.000 claims description 7
- 150000004678 hydrides Chemical class 0.000 claims description 7
- SAIKULLUBZKPDA-UHFFFAOYSA-N Bis(2-ethylhexyl) amine Chemical compound CCCCC(CC)CNCC(CC)CCCC SAIKULLUBZKPDA-UHFFFAOYSA-N 0.000 claims description 6
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 125000001246 bromo group Chemical group Br* 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 14
- 238000003860 storage Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
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- 239000010949 copper Substances 0.000 description 6
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- 239000011324 bead Substances 0.000 description 3
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- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 2
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- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
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- SAOKZLXYCUGLFA-UHFFFAOYSA-N bis(2-ethylhexyl) adipate Chemical compound CCCCC(CC)COC(=O)CCCCC(=O)OCC(CC)CCCC SAOKZLXYCUGLFA-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
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- 229940006460 bromide ion Drugs 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
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- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
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- HKIOYBQGHSTUDB-UHFFFAOYSA-N folpet Chemical compound C1=CC=C2C(=O)N(SC(Cl)(Cl)Cl)C(=O)C2=C1 HKIOYBQGHSTUDB-UHFFFAOYSA-N 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229940093920 gynecological arsenic compound Drugs 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- VUVZASHBYYMLRC-UHFFFAOYSA-N heptane-2,3-diol Chemical compound CCCCC(O)C(C)O VUVZASHBYYMLRC-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 230000001771 impaired effect Effects 0.000 description 1
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- 229920003049 isoprene rubber Polymers 0.000 description 1
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- LDZSZDPWGXKEIR-UHFFFAOYSA-N methylazanium bromate Chemical compound CN.O[Br](=O)=O LDZSZDPWGXKEIR-UHFFFAOYSA-N 0.000 description 1
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- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
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- VSINKAWXKJMFTH-UHFFFAOYSA-N n-octan-3-yloctan-3-amine Chemical compound CCCCCC(CC)NC(CC)CCCCC VSINKAWXKJMFTH-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- 235000010292 orthophenyl phenol Nutrition 0.000 description 1
- 239000004306 orthophenyl phenol Substances 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- NRZWYNLTFLDQQX-UHFFFAOYSA-N p-tert-Amylphenol Chemical compound CCC(C)(C)C1=CC=C(O)C=C1 NRZWYNLTFLDQQX-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229940081066 picolinic acid Drugs 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006350 polyacrylonitrile resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- TVPFLPJBESCUKI-UHFFFAOYSA-M potassium;n,n-dimethylcarbamodithioate Chemical compound [K+].CN(C)C([S-])=S TVPFLPJBESCUKI-UHFFFAOYSA-M 0.000 description 1
- QDESFMLRHRZCSV-UHFFFAOYSA-M potassium;n-(hydroxymethyl)-n-methylcarbamodithioate Chemical compound [K+].OCN(C)C([S-])=S QDESFMLRHRZCSV-UHFFFAOYSA-M 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 150000004040 pyrrolidinones Chemical class 0.000 description 1
- GRWFGVWFFZKLTI-UHFFFAOYSA-N rac-alpha-Pinene Natural products CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 description 1
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Images
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
- B23K35/36—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
- B23K35/362—Selection of compositions of fluxes
-
- 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
- B23K35/36—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
- B23K35/3612—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 organic compounds as principal constituents
- B23K35/3615—N-compounds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Description
前記(B)活性剤が(b1)二塩基酸活性剤、(b2)臭素系活性剤および(b3)一般式(1)で表されるアミン系活性剤を含む、鉛フリーはんだ用フラックス。
本発明の鉛フリーはんだ用フラックス(以下「本件フラックス」という)は、(A)ロジン系ベース樹脂(以下、「(A)成分」という)、(B)活性剤(以下、「(B)成分」という)、(C)チキソトロピック剤(以下、「(C)成分」という)および(D)溶剤(以下、「(D)成分」という)を含有し、当該活性剤が(b1)二塩基酸活性剤(以下、「(b1)成分」という)、(b2)臭素系活性剤(以下、「(b2)成分」という)および(b3)一般式(1)で表されるアミン系活性剤(以下、「(b3)成分」という)を含むものである。
本件フラックスを、はんだ粉末と混合することにより、濡れ性を維持しながら、リフロー工程後のフラックス残渣が優れた絶縁抵抗性を示すはんだペーストを得ることができる。
で表されるアミン系活性剤である。
本発明の鉛フリーはんだペーストは、本件フラックスと、鉛フリーはんだ粉末とを含有するものである。
実施例1
アクリル化ロジンの水素化物(商品名「KE−604」、荒川化学工業(株)製)を45重量%、グルタル酸(東京化成工業(株)製)を1重量%、アミド系チキソトロピック剤(製品名「MA−WAX−O」、12−ヒドロキシステアリン酸エチレンビスアミド、KFトレーディング(株)製)を6重量%、2,2−ビス(ブロモメチル)−1,3−プロパンジオールを2重量%、ジオクチルアミンを1.5重量%およびヘキシルジグリコールを44.5重量%となるように混合し、加熱下で溶融させ、鉛フリーはんだ用フラックスを調製した。
表1に示す原料組成に変更した他は、実施例1と同様にして各種フラックスを調製した。
市販の鉛フリーはんだ粉末(96.5Sn/3Ag/0.5Cu、三井金属(株)製、粒径20〜38μm、通常品)および実施例1のフラックスを順に89重量%および11重量%となるようソフナーにて混練し、はんだペーストを調製した。実施例2〜13および比較例1〜5のフラックスについても、実施例1と同様の方法ではんだペーストを調製した。
実施例1〜13および比較例1〜5に係るはんだペーストの調製直後の粘度、および該ペーストを40℃の恒温槽中で24時間保温した後の粘度をスパイラル方式粘度計(製品名「PCU−205」、共軸二重円筒形回転型、(株)マルコム製)を用いてそれぞれ測定し、以下に示す計算式に基づき、当該はんだペーストの増粘率を算出した。
JIS Z 3284 附属書10に準拠してディウェッテイング試験により、大気雰囲気下での加熱、リフローにおける銅板に対するはんだペーストの濡れ性を評価した。評価基準は以下の通りである。
(評価基準)
1:銅電極基板に対して不濡れが無く、試験板に塗布した以上に濡れ広がる
2:銅電極に対して塗布した部分が全て濡れ広がる
3:若干不濡れが生じる
4:銅電極基板に対して全く濡れない
また、はんだペーストを調製した後、40℃で24時間経過した後においても同様の試験を行った。
JIS Z3284 附属書3に準拠して、実施例1〜13および比較例1〜5に係るはんだペーストをそれぞれリフローし、温度85℃、湿度85%の環境下で7日間曝した後のフラックス残渣の絶縁抵抗性を評価した。値が高いものほど、絶縁抵抗性に優れていることを示す。
実施例1〜13および比較例1〜5に係るはんだペーストを厚み100μmのステンシルマスクを用いて、専用のパターンに印刷した後、2012コンデンサーをマウンターにて搭載し、大気雰囲気下において、図1に示す標準プロファイルの条件でリフローを行った。リフロー後、部品外に出たサイドボールの個数で耐サイドボール性を評価した。サイドボールの個数が少ないほど、耐サイドボール性に優れていることを示す。
・KE−604:アクリル化ロジンの水素化物(荒川化学工業(株)製)
・CP−140:重合ロジン(荒川化学工業(株)製)
・CRW−300:水素化ロジン(荒川化学工業(株)製)
・GA:グルタル酸
・AA:アジピン酸
・BMPD:2,2−ビス(ブロモメチル)−1,3−プロパンジオール
・TDBDO:trans−2,3−ジブロモ−2−ブテンー1,4−ジオール
・DBSA:ジブロモコハク酸
・DHA:ジヘキシルアミン
・DOA:ジオクチルアミン
・DEHA:ジ(2−エチルヘキシル)アミン
・DDA:ジデシルアミン
・DSA:ジステアリルアミン
・ジ硬化牛脂アミン(製品名「アーミン2HT」、ライオン(株)製、アルキル基炭素数12〜20)
・MAWAXO:12−ヒドロキシステアリン酸エチレンビスアミド(KFトレーディング(株)製)
・HeDG:ジエチレングリコールモノへキシルエーテル(ヘキシルジグリコール)
・MFTG:トリプロピレングリコールモノメチルエーテル
Claims (9)
- 前記(A)成分がアクリル化ロジンの水素化物、水素化ロジンおよび重合ロジンからなる群より選ばれる少なくとも1種である、請求項1に記載の鉛フリーはんだ用フラックス。
- 前記(b1)成分が全炭素数3〜10の二塩基酸活性剤である、請求項1又は2に記載の鉛フリーはんだ用フラックス。
- 前記(b2)成分に由来する臭素原子の濃度が前記フラックス0.1gあたり500〜30000ppmである、請求項1〜3のいずれかに記載の鉛フリーはんだ用フラックス。
- 前記(b2)成分が臭素系アルコール化合物および臭素系カルボン酸化合物からなる群より選ばれる少なくとも1種である、請求項1〜4のいずれかに記載の鉛フリーはんだ用フラックス。
- 前記(b3)成分がジ(2−エチルヘキシル)アミンおよびジn−オクチルアミンからなる群より選ばれる少なくとも1種である、請求項1〜5のいずれかに記載の鉛フリーはんだ用フラックス。
- 前記(C)成分がアミド系チキソトロピック剤である、請求項1〜6のいずれかに記載の鉛フリーはんだ用フラックス。
- 前記(D)成分がアルコール化合物である、請求項1〜7のいずれかに記載の鉛フリーはんだ用フラックス。
- 請求項1〜8のいずれかに記載の鉛フリーはんだ用フラックスと、鉛フリーはんだ粉末とを含有する鉛フリーはんだペースト。
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